A6 Competition DPF issues

[lopez90]

Hello.

Bought my second C7 but first bitdi/competition 3 weeks ago. Having some issues with DPF.
First DPF warning came the day i bought the car about 4 hours on my drive home. Drove for about 10-15 minutes on 3k rpm and the light went away. 6-7 days later the light came back on. Same procedure.
And now again this weekend. Total 3 times in about 20 days.

Last successful regeneration was 22 days ago, 2 days before i bought the car.

Any tips what i can do to prevent this? Normally the car is used 10km (12 minute drive) to work and same back home with some other trips in the store in the same area.


Will taking the DPF out and cleaning it help me here? Or a forced regeneration?

Attached soot levels here aswell.

475994375_10171344856625422_4049494363633538404_n.jpg

[Audisthesia]

Shorter trips will result in higher soot levels and triggering regens. Being in Norway, I'm going to assume a DPF delete is completely out of the question due to regulations/laws there. There is a fellow on the telegram chat that lives in northern EU as you do, perhaps he could offer insight.

[lopez90]

Yes, that is correct. DPF delete will give other troubles in the long run. My previous c7 204ps gave the DPF light twice in six years. Same driving pattern with the competition, now in my third code in 3 weeks. Havent had vcds connected while the car throws DPF light. Do i have to drive the car longer when i drive it hard to blow the soot out. I have till now just driven it hard till the light shuts off.

[petarat]

I'm curious how a dpf delete would cause more problems. For short trips, I'd remove it, go on long drives at least once a week, or get a car without a dpf

[lopez90]

It will cause problems with MOT and gas emission, so its actully illegal to delete it here in norway. With a proper map it could be undetectable, but the technican/controller wil still fail the MOT during inspection.

[Avantly]

My experience with the emissions junk is that as the SCR becomes restricted from increasing levels of crystallized DEF, this will increase the rate of accumulation of soot in the DPF... How does the DEF injector look?

[lopez90]

My experience with the emissions junk is that as the SCR becomes restricted from increasing levels of crystallized DEF, this will increase the rate of accumulation of soot in the DPF... How does the DEF injector look?

I'll have a check during the weekend when i can lift the car, thanks.

[SaVAGeSoot]

Post full scan. Make sure you don't have any engine controller faults, as correct regens depend on the proper operation of a lot of sensors and actuators.

[lopez90]

Post full scan. Make sure you don't have any engine controller faults, as correct regens depend on the proper operation of a lot of sensors and actuators.

Did a scan without the car running here.

Soot levels 5 days after last scan attached aswell.

[QUOTE]Saturday,08,February,2025,10:21:27:63009
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 23.3.1.0 (x64)  HEX-NET2 CB: 0.4643.5
Data version: 20230421 DS346.2
[url]www.Ross-Tech.com[/url]


VIN: WAUZZZ4G7GN086085   License Plate: BT
Mileage: 141389km-87855mi   Repair Order: 



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 4G-AU57 (4G8)
Scan: 01 02 03 05 08 09 13 15 16 17 19 36 3B 3C 42 44 46 52 53 55
          5F 62 69 6D 72 85 8B 8E 8F 90 A9 AC C0 47

VIN: WAUZZZ4G7GN086085   Mileage: 141389km-87855miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
13-Auto Dist. Reg -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
36-Seat Mem. Drvr -- Status: Malfunction 0010
3B-Sensor Elect. -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Headlight Range -- Status: Malfunction 0010
5F-Information Electr. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
69-Trailer -- Status: OK 0000
6D-Trunk Elect. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
85-On Board Cam. -- Status: OK 0000
8B-Adaptive Cruise 2 -- Status: Malfunction 0010
8E-Image Processing -- Status: OK 0000
8F-Pretens. Frt Left -- Status: OK 0000
90-Pretens. Frt Right -- Status: OK 0000
A9-Struct. Borne Sound -- Status: OK 0000
AC-Reductant Control -- Status: OK 0000
C0-Act. for Ext. Noise -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CVUB)       Labels:. 059-907-401-V2.clb
   Part No SW: 4G0 907 589 F    HW: 4G0 907 589 B
   Component: 3.0BTD EDC17  H23 0008  
   Revision: 54H23---    CVN: E4E71E2CC19C7771B866C2AD8947E11D9B0058CB
   Coding: 122A4032257603030000
   Shop #: WSC 24745 001 1048576
   ASAM Dataset: EV_ECM30BTD0114G0907589F 001008
   ROD: EV_ECM30BTD0114G0907589F_001.rod
   VCID: 372045A45FC2E6A2FE1-8062
   VINID: 9D196AAAA1171D7780206008143500C154

No fault code found.
Readiness: 0 0 0 0 0 

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0BK-927-156.clb
   Part No SW: 4G0 927 158 AK    HW: 0BK 927 156 AM
   Component: 0BK 30RTDIRDW H19 1015  
   Revision: --H19---    CVN: 43BF1921
   Coding: 000001
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMAL551211 002022
   ROD: EV_TCMAL551211_002_AU48.rod
   VCID: 77A085A41F4226A23E1-8022

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 4G0-907-379-V2.clb
   Part No SW: 4G0 907 379 S    HW: 4G0 907 379 S
   Component: ESP9 Premium  H01 0530  
   Revision: --------    Serial number: --------------
   Coding: 49A79E4992E57992BB00
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_ESP9BOSCHAU57X 004018
   ROD: EV_ESP9BOSCHAU57X.rod
   VCID: 41D42B7C0106A812405-8014

14 Faults Found:
36352 - Function Restricted due to Insufficient Voltage 
          U1400 00 [032] - -
          [HydraulicSupplyUndervoltage]
          Intermittent - Not Confirmed - Tested Since Memory Clear

124416 - Function Restriction due to Faults in Other Modules 
          U1113 00 [032] - -
          [Ldm_ApbFailureState]
          Intermittent - Not Confirmed - Tested Since Memory Clear

143360 - Supply voltage 
          U1011 00 [096] - Voltage too Low
          [NET_Undervoltage]
          Intermittent - Not Confirmed - Tested Since Memory Clear

154624 - Tire Pressure Warning 
          C102D 00 [032] - -
          Intermittent - Not Confirmed - Tested Since Memory Clear

154880 - Tire Pressure Warning 
          C102D 00 [032] - -
          Intermittent - Not Confirmed - Tested Since Memory Clear

155392 - Tire Pressure Warning 
          C102D 00 [032] - -
          Intermittent - Not Confirmed - Tested Since Memory Clear

161280 - Tire Pressure Warning 
          C102D 00 [032] - -
          Intermittent - Not Confirmed - Tested Since Memory Clear

161536 - Tire Pressure Warning 
          C102D 00 [032] - -
          Intermittent - Not Confirmed - Tested Since Memory Clear

161792 - Tire Pressure Warning 
          C102D 00 [032] - -
          Intermittent - Not Confirmed - Tested Since Memory Clear

49664 - Return Flow Pump 
          C1018 16 [032] - Voltage Too Low
          Intermittent - Not Confirmed - Tested Since Memory Clear

313344 - Return Flow Pump 
          C1018 16 [032] - Voltage Too Low
          Intermittent - Not Confirmed - Tested Since Memory Clear

264192 - Brake Boost Pressure Sensor 
          C054C 00 [032] - Short to Plus
          Intermittent - Not Confirmed - Tested Since Memory Clear

263680 - Implausible Data Received from Pressure Sensor for Brake Booster 
          U043E 00 [032] - -
          [VacSent1Transmission]
          Intermittent - Not Confirmed - Tested Since Memory Clear

263168 - Voltage Supply for Brake Boost Pressure Sensor 
          C0548 00 [032] - Voltage too Low
          Intermittent - Not Confirmed - Tested Since Memory Clear


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 4H0 907 064 GN    HW: 4H0 907 064 GN
   Component: BCM2 2.0      H37 0572  
   Revision: 00002001    
   Coding: 01A9700E000000000000
   Shop #: WSC 02391 785 00200
   VCID: 7BA8999423EA02C25A9-802E

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:| 4G0-820-043-2Z.clb
   Part No SW: 4G0 820 043 CB    HW: 4G0 820 043 CB
   Component: KLIMA 2 ZONEN H14 0112  
   Serial number: 15091500110923
   Coding: 36021108250000
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_AirCondiBasisUDS 003009
   ROD: EV_AirCondiBasisUDS_003.rod
   VCID: 6194CBFCA1C6C812605-8034

1 Fault Found:
0386 - Functional Limitation due to Energy Management 
          B10CD 00 [008] - -
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 36
                    Mileage: 140854 km
                    Date: 2025.01.26
                    Time: 14:19:23

                    Voltage terminal 30: 11.16 V
                    Outside temperature: 5.0  C
                    Energy management deactivation stage: 1


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 4H0-907-063-V2.clb
   Part No SW: 4H0 907 063 DH    HW: 4H0 907 063 AH
   Component: BCM1 2.0      H20 0311  
   Revision: 15020001    Serial number: 00001172612801
   Coding: 0105001440349FE2C10140C380001800CF9CE7082E08020100000494E10113020040002D030000
   Shop #: WSC 02391 785 00200
   VCID: 71B4BBBC71A67892F05-8024

   Subsystem 1 - Part No SW: 4G1 955 119     HW: 4G8 955 119   Labels: 1KX-955-119.CLB
   Component: WWS57X 150720  H38 0080 
   Serial number:         150827100756
   Coding: 0045F7

   Subsystem 2 - Part No SW: 8U0 955 559 C    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0004 
   Serial number: 20673605            
   Coding: 0200FD

   Subsystem 3 - Part No SW: 4G0 941 531 BE    HW: 4G0 941 531 BE
   Component: E1 - LDS  H07 0044 
   Serial number: 22 09 2015  00001221

   Subsystem 4 - Part No SW: 4G0 907 658 A    HW: 4G0 907 658 A
   Component: Humidity_Sens  H03 0002 
   Serial number: 54188AC7000000000001

1 Fault Found:
03455 - Function Restriction due to Faults in Other Modules 
            000 - - - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 40
                    Mileage: 140940 km
                    Time Indication: 0
                    Date: 2025.01.28
                    Time: 17:36:01


-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels:| 4H0-907-561.clb
   Part No SW: 4G0 907 561 B    HW: 4G0 907 561 
   Component: ACC3          H21 0053  
   Serial number: 00000000000000 Dataset Number: 4G0909863D  0040
   Coding: 7F04010202
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_AdaptCruisContrAU57X 002014
   ROD: EV_AdaptCruisContrAU57X_002.rod
   VCID: 290493DC99764052785-807C

1 Fault Found:
154624 - Door Contact Switch 
          C1076 29 [008] - Signal Implausible
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 36
                    Mileage: 140854 km
                    Date: 2025.01.25
                    Time: 20:38:02

                    Control Module temperature: 19  C
                    Voltage terminal 15: 11.582 V
                    Velocity_vehicle_reference: -0.01 m/s
                    Longitudinal_acceleration_vehicle_reference: 0.00 m/s 


-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:* 4H0-959-655.clb
   Part No SW: 4H0 959 655 H    HW: 4H0 959 655 H
   Component: Airbag10.43   H83 0098  
   Revision: --------    Serial number: 003P100GXKU% Dataset Number: 4G0909602M  0003
   Coding: 30333130313730323536554A304C34473053
   Shop #: WSC 03562 003 1048576
   ASAM Dataset: EV_AirbaAU10BPAAU64X 001014
   ROD: EV_AirbaAU10BPAAU64X_VW51.rod
   VCID: 3B28599463EAC2C21A9-806E

   Crash sensor for side airbag: driver side: 
   Serial number: 3575HRB400S54UOCGOT-

   Front Passenger's Side Airbag Crash Sensor: 
   Serial number: 3585HRB400U54UOCBHVT

   Rear Side Airbag Crash Sensor (on driver's side): 
   Serial number: 3515JRB405N3I87IAP2M

   Passenger side rear thorax airbag crash sensor: 
   Serial number: 3525JRB405B3J2AS0GQO

   Crash sensor for front airbag: driver side: 
   Serial number: 3554VRB405T3JPCQOH2.

   Crash sensor for front airbag: front passenger side: 
   Serial number: 3564VRB405T3JPCQ9H9U

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 4H0-953-568.clb
   Part No SW: 4H0 953 568 G    HW: 4H0 953 568 G
   Component: Lenks.Modul   H04 0005  
   Revision: --------    Serial number: 90372OIO000PF 
   Coding: 0000FD
   Shop #: WSC 02391 785 00200
   VCID: 372045A45F42E6A2FE1-8062

   Subsystem 1 - Part No SW: 4G0 951 528 A    HW: 4G0 951 528 A
   Component: E221 - MFL  H08 0010 
   Serial number: 27 06 2015  D0079631

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 4H0-920-xxx-17.clb-SRI1
   Part No SW: 4G8 920 934 H    HW: 4G8 920 934 H
   Component: TDieRdwAcc    H11 0104  
   Revision: 07001088    Serial number: 658160915596049
   Coding: 138712000F510008000000
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_RBD4K 004055
   ROD: EV_RBD4K_AU57.rod
   VCID: 363E48A058C81FAAE57-8062

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:| 4H0-907-468.clb
   Part No SW: 4G8 907 468 F    HW: 4G8 907 468 
   Component: J533--Gateway H14 0083  
   Revision: --------    Serial number: 00000001987197 Dataset Number: 4G0909515K  0021
   Coding: C0CD078118
   Shop #: WSC 02391 785 00200
   GVL: FD8DC80CDCA5600F70040000
   ASAM Dataset: EV_GatewPkoUDS 001028
   ROD: EV_GatewPkoUDS_001_AU57.rod
   VCID: 3B28599463EAC2C21A9-806E

   Battery Monitoring Control Module: 
   Subsystem 1 - Part No SW: 8T0 915 181     HW: 8T0 915 181 
   Component: J367-BDMHella  H03 8041 
   Serial number: 9677157903          

   Voltage stabilizer: 
   Subsystem 2 - Part No SW: 8K0 959 663 F    HW: 8K0 959 663 F
   Component: J532_DCDCStab  H23 0022 
   Serial number: 15071400000000000253

1 Fault Found:
12291 - Energy Management Active 
          U140B 00 [008] - -
          [Powermanagement active]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 7
                    Fault Frequency: 2
                    Reset counter: 36
                    Mileage: 140068 km
                    Date: 2025.01.01
                    Time: 13:47:04

                    Voltage terminal 30: 11.6 V
                    Voltage terminal 15: 0.0 V
                    Control Module temperature: -12  C
                    System status: Awake_Timer_active
                    IN ESP_standstill flag: standstill detected
                    Engine running: OFF
                    IN ZAS_Te_X: OFF
                    Terminal 15 status via CAN: OFF
                    Terminal 15 status: OFF
                    Datenfeld: 1


-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels: None
   Part No SW: 4G8 959 760     HW: 4G8 959 760 
   Component: MEM-FS        H03 0157  
   Revision: AA000000    Serial number: 00000166690688
   Coding: 0058130000006001000001010101102030303232203232
   Shop #: WSC 02391 785 00200
   VCID: 77A085A41FC226A23E1-8022

1 Fault Found:
03332 - Motor for Height Adjustment 
            005 - No or Incorrect Basic Setting / Adaptation
             Freeze Frame:
                    Fault Status: 01100101
                    Fault Priority: 4
                    Fault Frequency: 1
                    Reset counter: 230
                    Mileage: 140194 km
                    Time Indication: 0
                    Date: 2025.01.14
                    Time: 14:49:03


-------------------------------------------------------------------------------
Address 3B: Sensor Elect. (J849)       Labels: 4G0-907-637.clb
   Part No SW: 4G0 907 637 K    HW: 4G0 907 637 F
   Component: SARA 6D       H04 0056  
   Revision: --------    Serial number: EJ1BPA820A76A. Dataset Number: 4G0909573C  0006
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_SARA2 005012
   ROD: EV_SARA2.rod
   VCID: 363E48A058C81FAAE57-8062

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change (J769)       Labels:| 5Q0-907-566.clb
   Part No SW: 4G0 907 566 M    HW: 4H0 907 566 F
   Component: SWA Master    H06 0060  
   Serial number: 0381172425 Dataset Number: 4G0909535C  0008
   Coding: 040321
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_LaneChangAssis 001028
   ROD: EV_LaneChangAssis_AU21.rod
   VCID: 3924439C69D6F0D2085-806C

   Lane change assistance control module 2: 
   Subsystem 1 - Part No SW: 4G0 907 568 M    HW: 4H0 907 568 F
   Component: SWA Slave  H06 0060 
   Serial number: 0381796482          
   Coding: 040321

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 4H0-959-793.clb
   Part No SW: 4G8 959 793 H    HW: 4G8 959 793 F
   Component: TSG FA        H04 0511  
   Revision: --------    Serial number: --------------
   Coding: 011F17015E00628002080013
   Shop #: WSC 02391 785 00200
   VCID: 45DC3F6C15AE84327CD-8010

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 4G0-909-144.clb
   Part No SW: 4G0 909 144 T    HW: 4G0 909 144 Q
   Component: RCevo         H53 0202  
   Revision: 00000001    Serial number: 0000237747 Dataset Number: 4G0909852L  0037
   Coding: 101001010001
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_RCEPS 106007
   ROD: EV_RCEPS_106.rod
   VCID: 3A265C906CD0FBCA01F-806E

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 4H0-907-064-46.clb
   Part No SW: 4H0 907 064 GN    HW: 4H0 907 064 GN
   Component: BCM2 2.0      H37 0572  
   Revision: 00002001    Serial number: 0373929785    
   Coding: 0100063820B93080C32009042C010F470000000000000000000000000000
   Shop #: WSC 02391 785 00200
   VCID: 7BA8999423EA02C25A9-802E

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 4H0-959-792.clb
   Part No SW: 4G8 959 792 J    HW: 4G8 959 792 G
   Component: TSG BF        H03 0511  
   Revision: --------    Serial number: --------------
   Coding: 011F17015E00628002080002
   Shop #: WSC 02391 785 00200
   VCID: 46DE386028A88F2A757-8012

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 4H0-907-801.clb
   Part No SW: 4H0 907 801 H    HW: 4H0 907 801 A
   Component: EPB-4         H04 0015  
   Revision: --------    Serial number: 00000001603230 Dataset Number: 4G0909522E  0008
   ASAM Dataset: EV_ParkiBrake 001028
   ROD: EV_ParkiBrake_VW51.rod
   VCID: 2D0C67CCAD9E5C7294D-8078

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J745)       Labels:| 4H4-907-357-V2.clb
   Part No SW: 4H4 907 357 E    HW: 7P6 907 357 B
   Component: MxB-ECU       001 0100  
   Revision: --------    Serial number: -------------- Dataset Number: 4G0909865D  0017
   Coding: 04FA02202A170200
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_HeadlRegulAUDIMXBAU64X 005009
   ROD: EV_HeadlRegulAUDIMXBAU64X_005_AU57.rod
   VCID: 343A72A84EB40DBADB3-8060

   Left LED Headlamp Power Output Stage 1: 
   Subsystem 1 - Part No SW: 7PP 941 472 J    HW: 7PP 941 472 J  Labels: 3D0-941-329.CLB
   Component: LED LeiMo li.  H07 7560 
   Coding: E01F00

   Right LED Headlamp Power Output Stage 1: 
   Subsystem 2 - Part No SW: 7PP 941 472 J    HW: 7PP 941 472 J  Labels: 3D0-941-329.CLB
   Component: LED LeiMo re.  H07 7560 
   Coding: E01F00

   Power module 1 for left matrix headlamp: 
   Subsystem 3 - Part No SW: 4H0 941 329 A    HW: 4H0 941 329 A  Labels: 3D0-941-329.CLB
   Component: MxB LeiMo li.  H03 0031 
   Coding: E01F00

   Power module 1 for right matrix headlamp: 
   Subsystem 4 - Part No SW: 4H0 941 329 A    HW: 4H0 941 329 A  Labels: 3D0-941-329.CLB
   Component: MxB LeiMo re.  H03 0031 
   Coding: E01F00

2 Faults Found:
13706001 - Databus 
          U1123 00 [008] - Received Error Message
          [Empfangener Fehlerwert im Signal Kamera_FDD_Funktionsstatus: CAN Message Kamera_Status]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 2
                    Reset counter: 40
                    Mileage: 140940 km
                    Date: 2025.01.28
                    Time: 17:34:59

5353456 - Fog mode active 
          C118E 00 [008] - -
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 42
                    Reset counter: 55
                    Mileage: 135546 km
                    Date: 2024.08.16
                    Time: 21:48:12


-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:| 4G1-035-MIB-HGH2.clb
   Part No SW: 4G1 035 044 R    HW: 4G1 035 044 
   Component: MU-H-LN-EU    042 0335  
   Serial number: A589I0F7538836 Dataset Number: 4G1909545C  0023
   Coding: 01750201FF0A000013110001000A00132F0006E5F1700100DF
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_MUHig6C3Gen2HBAS 001115
   ROD: EV_MUHig6C3Gen2HBAS_AU57.rod
   VCID: 2E0E60C0A098276AAD7-807A

   Data carrier: 
   Subsystem 1 - Part No SW: V03 959 801 FD    HW: -----------
   Component: ECE 2017/2018  --- 0161 
   Serial number: --------------------

   Multimedia System 1: 
   Subsystem 2 - Part No SW: 4G1 919 605 A    HW: 4G1 919 605 A
   Component: DU8 C7 SV  H63 0006 
   Serial number: AUZ8Z9FY802KK5      

   Multimedia system control head: 
   Subsystem 3 - Part No SW: 4G1 919 610 F    HW: 4G1 919 610 F
   Component: E380 BDT C7  H20 0250 
   Serial number: 90349OIL000QK       

   Compact disc data bank: 
   Subsystem 4 - Part No SW: V03 959 800 EG    HW: -----------
   Component: Gracenote  --- 1010 
   Serial number: --------------------

1 Fault Found:
1637 - Interface for External Media 
          U11B8 00 [008] - No Communications
          [USB - communication error]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 4
                    Fault Frequency: 5
                    Reset counter: 55
                    Mileage: 140854 km
                    Date: 2025.01.26
                    Time: 14:39:33

                    Voltage terminal 30: 12.3 V
                    Interface for external media: status-Status: Open circuit


-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 4H0-959-795.clb
   Part No SW: 4G8 959 795 J    HW: 4G8 959 795 G
   Component: TSG HL        H03 0511  
   Revision: --------    Serial number: --------------
   Coding: 010F15004000628002080002
   Shop #: WSC 02391 785 00200
   VCID: 49C4335C39B66052985-801C

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels:| 4H0-907-383-V2.clb
   Part No SW: 4G8 907 383 B    HW: 4G8 907 383 B
   Component: Anhaenger     H14 0137  
   Revision: 7B001002    Serial number: 0381421296 Dataset Number: 4G0909527B  0009
   Coding: 0100000202000000
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_TrailFunctGener2Hella 001005
   ROD: EV_TrailFunctGener2Hella_VW26.rod
   VCID: 333871B44BBA0A82C29-8066

No fault code found.

-------------------------------------------------------------------------------
Address 6D: Trunk Elect. (----)       Labels:* Redir Fail!
   Part No SW: 4G9 959 107 C    HW: 4G9 959 107 B
   Component: HDSG-Modul    H05 0151  
   Revision: 14005001    Serial number: 252500036 Dataset Number: 4G0909541E  0004
   Coding: 093205C011
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_HDSGAu572 001022
   ROD: EV_HDSGAu571.rod
   VCID: 363E48A058C81FAAE57-8062

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 4H0-959-795.clb
   Part No SW: 4G8 959 795 J    HW: 4G8 959 795 G
   Component: TSG HR        H03 0511  
   Revision: --------    Serial number: --------------
   Coding: 010F15004000628002080002
   Shop #: WSC 02391 785 00200
   VCID: 49C4335C39B66052985-801C

No fault code found.

-------------------------------------------------------------------------------
Address 85: On Board Cam. (J852)       Labels:| 7P6-907-217.clb
   Part No SW: 4H0 907 217 F    HW: 4H0 907 217 A
   Component: DPC-SG        H27 0081  
   Revision: --------    Serial number: 262130025421000 Dataset Number: 4G0909547D  0007
   Coding: 6A160000
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_OnBoardCamerDPC 001007
   ROD: EV_OnBoardCamerDPC.rod
   VCID: 2C0A6AC89684557A833-8078

No fault code found.

-------------------------------------------------------------------------------
Address 8B: Adaptive Cruise 2 (J428)       Labels:| 4H0-907-561.clb
   Part No SW: 4G0 907 541 B    HW: 4G0 907 541 
   Component: ACC3          H21 0053  
   Serial number: 00000000000000
   Coding: 7F04010202
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_AdaptCruisContr2AU57X 002012
   ROD: EV_AdaptCruisContr2AU57X_002.rod
   VCID: 270095E48F6276226E1-8072

1 Fault Found:
154624 - Door Contact Switch 
          C1076 29 [008] - Signal Implausible
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 36
                    Mileage: 140854 km
                    Date: 2025.01.25
                    Time: 20:38:02

                    Control Module temperature: 19  C
                    Voltage terminal 15: 11.636 V
                    Velocity_vehicle_reference: -0.00 m/s
                    Longitudinal_acceleration_vehicle_reference: 0.00 m/s 


-------------------------------------------------------------------------------
Address 8E: Image Processing (J851)       Labels:| 4H0-907-107-V2.clb
   Part No SW: 4H0 907 107 H    HW: 4H0 907 107 
   Component: BV-SG         H33 0090  
   Serial number: 005000622309157 Dataset Number: 4G0909548G  0008
   Coding: 04C0B81C1111
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_BC7 001001
   ROD: EV_BC7.rod
   VCID: 2C0A6AC89684557A833-8078

No fault code found.

-------------------------------------------------------------------------------
Address 8F: Pretens. Frt Left (J854)       Labels: 4H0-980-94x-RGS.clb
   Part No SW: 4H0 980 945 B    HW: 4H0 980 945 C
   Component: RGS-VL        H14 0080  
   Dataset Number: 4G0909614C  0001
   Coding: 0066E608031F0376070308014240C2010000
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_RGS_L 002004
   ROD: EV_RGS_L.rod
   VCID: 31347BBCB1A63892B05-8064

No fault code found.

-------------------------------------------------------------------------------
Address 90: Pretens. Frt Right (J855)       Labels: 4H0-980-94x-RGS.clb
   Part No SW: 4H0 980 946 B    HW: 4H0 980 946 C
   Component: RGS-VR        H14 0080  
   Dataset Number: 4G0909615C  0001
   Coding: 0066E608031F0376070308014240C2010000
   Shop #: WSC 02391 785 00200
   ASAM Dataset: EV_RGS_R 002004
   ROD: EV_RGS_R.rod
   VCID: 323674B0B4A0038AC9F-8066

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 4G0 907 159 D    HW: 4H0 907 159 A
   Component: SAS-GEN 2     H07 0007  
   Serial number: 150908201596
   ASAM Dataset: EV_SoundActuaGen2AU64X 003010
   ROD: EV_SoundActuaGen2AU64X.rod
   VCID: 2E0E60C0A098276AAD7-807A

No fault code found.

-------------------------------------------------------------------------------
Address AC: Reductant Control (J880)       Labels: 4G0-907-355.clb
   Part No SW: 4G0 907 355 G    HW: 4G0 907 355 B
   Component: SCR-Stg-G2    H10 0013  
   Revision: 00000000    Serial number: 152260702 Dataset Number: 4G0909571H  0017
   ASAM Dataset: EV_RDCMA00100 008040
   ROD: EV_RDCMA00100.rod
   VCID: 2F307DC4A7922E62A61-807A

No fault code found.

-------------------------------------------------------------------------------
Address C0: Act. for Ext. Noise (J943)       Labels: 4G0-907-160.clb
   Part No SW: 4G0 907 160 E    HW: 4G0 907 160 B
   Component: SAS-GEN 2 AGA H09 0011  
   Serial number: 150915201145
   ASAM Dataset: EV_ActuaForExterNoiseUDS 003013
   ROD: EV_ActuaForExterNoiseUDS.rod
   VCID: 270095E48F6276226E1-8072

No fault code found.

End----(Elapsed Time: 02:28, VBatt start/end: 11.6V/11.6V. VIgn 11.6V)-----[/QUOTE] 

[lopez90]

Wanted to check if the exhaust gas temperature sensors are working properly since its not self regenerating. I have 192+c on exhaust gas temperature sensor 3, but exhaust gas model temperature 3 shows -20? Could it be a faulty sensor? Not sure what the difference in those two measurments here.

eksos temperatur.png

[STXA7]

might wanna look up truck shops that specialize in liberating cars from their EPA compliant systems.... if you follow the news lately looks like there won't be enforcement in the near future

[lopez90]

Guess you are referring to the US? Havent heard any about the topic here in Norway. Doesn’t really help with my regeneration/dpf problem today anyways 😅

[Avantly]

might wanna look up truck shops that specialize in liberating cars from their EPA compliant systems.... if you follow the news lately looks like there won't be enforcement in the near future

He's in norway sounds like not possible. FYI you don't need a shop to liberate these vehicles... Such work has always been grossly overpriced. Online sources charging the price of a high quality catback system for some empty pipes that you could have made for 20% of what they ask (or less). Computer work that, if not accompanied by a tune is a small modification that you can find someone on the internet to do for free... The cost of a delete is less than what you get in scrap for the DPF and SCR if you sell to an online buyer!

[Avantly]

Wanted to check if the exhaust gas temperature sensors are working properly since its not self regenerating. I have 192+c on exhaust gas temperature sensor 3, but exhaust gas model temperature 3 shows -20? Could it be a faulty sensor? Not sure what the difference in those two measurments here.

eksos temperatur.png

Looking at your scans, you shouldn't be to the point where your DPF is suffering from age-related issues. I suppose it is possible, but I doubt it...

Where was this vehicle purchased from? Used car dealer? Is it possible that anyone has done work on it before? One thing that comes to mind (especially given that you have no codes) is to make sure that there have been no modifications to the ECM in order to conceal problems. Those who are on the tuning forums will know what I am talking about; There seems to be no shortage of people, especially in the likes of turkey/eastern europe/etc who will modify ECM's (delete DTC's from the map such that the DTC can no longer be set) in order to make a profit on a malfunctioning vehicle. When in doubt, always flash with stock software image. If DTC's suddenly appear after reflash, then you know what the last guy did. Not saying that this is the issue with your car, but I would be looking at ownership history and region it was owned in.

For those "model" temperatures, I don't have a C7 TDI vehicle to compare, but those model temps are not measured temps so I suspect that -20C may be perfectly normal...

[lopez90]

140000km on the clock so it should be end of life on the DPF yet. Bought the car from a guy that imported it to Norway in 2019. He said the car has never been modified. Service history from audi dealer. He thought the timing belt was changed on a service while looking through the service book (3.0 has timing chain) so he wasn't a typically car guy imo. Felt like a trustworthy guy but who knows.

I feel like a DPF clean will fix the problem temporary since it hasnt had a successful regeneration in a while. Tried to inspect and clean the DEF injector today but i couldnt find my jack pad so i had to order a new one so i actully can manage to get under it.

[Avantly]

Definitely take a look at that injector. I have seen the SCR's on 3.0TDI clog up with crystallized DEF and result in an incredible soot load on the DPF as a result. After clearing the SCR restriction I was able to successfully do a regent from VCDS and get the soot load back down to nominal on one vehicle but no idea how it performed after that. My experience is you typically get a minimum of 120k miles/200k kilometers from these DPF before they are done but I don't know if you guys use the same design DPF as we do - IIRC due to the large geographical area of the USA the typical driver is driving nearly twice the distance of EU drivers every year so they may have given us different emissions equipment as a result of that!

[SaVAGeSoot]

I think you're making up problems that you don't have.
Your readiness monitors have all passed... there's no codes for DPF or anything.
Soot load needs to get to 27g in order to have regens happen.
Your battery is junk. Replace that because these modern cars hate not having sufficient juice.
The BEM will shut down most of the car to keep it starting and such, but it will result in other issues.
You can pull the electrical history file and analyze it if you really want to know how old your battery is, etc.
There are also IDEs for just a ton of things in the controllers, so have a look (when and if you get another MIL) at the ones with regards to regens, De-NOx, DEF usage, etc.

Your daily driving pattern is NOT good or sufficient for this type of car. You need to get it out and let it stretch its legs once a week. It needs to reach full operating temp, heat up all the emissions components, etc.
Short tripping it will create lots of problems.

Here's a list of what I typically look at on my vehicle as part of my routine scans to keep an eye on the emissions stuff.

                Address 01: Engine  (4G0 907 401 N)

14:22:05
  IDE00432   Particle filter: time since last regeneration 77719 s
  IDE00433   Particle filter: oil ash volume 0.04 l
  IDE00434   Particle filter: soot mass calculated 26.58 g
  IDE00435   Particle filter: soot mass measured 5.92 g
  IDE00436   Particle filter: kilometers since last regeneration 882477 m
  IDE01922   Vehicle distance driven 141876 km
  IDE03386   Long-term adaptation of reduction agent dosage 0.98 
  IDE05857   DPF statistics: current measured charging rate 0.0310 g/km
  IDE06983-MAS05392   Diesel emissions re-treatment: status-Average distance between DPF regenerations 343 km
  IDE07197   Average reducing agent since lest filling 0.80 l/1000 km

[Avantly]

I think you're making up problems that you don't have.
Your readiness monitors have all passed... there's no codes for DPF or anything.
Soot load needs to get to 27g in order to have regens happen.
Your battery is junk. Replace that because these modern cars hate not having sufficient juice.
The BEM will shut down most of the car to keep it starting and such, but it will result in other issues.
You can pull the electrical history file and analyze it if you really want to know how old your battery is, etc.
There are also IDEs for just a ton of things in the controllers, so have a look (when and if you get another MIL) at the ones with regards to regens, De-NOx, DEF usage, etc.

Your daily driving pattern is NOT good or sufficient for this type of car. You need to get it out and let it stretch its legs once a week. It needs to reach full operating temp, heat up all the emissions components, etc.
Short tripping it will create lots of problems.

Here's a list of what I typically look at on my vehicle as part of my routine scans to keep an eye on the emissions stuff.

                Address 01: Engine  (4G0 907 401 N)

14:22:05
  IDE00432   Particle filter: time since last regeneration 77719 s
  IDE00433   Particle filter: oil ash volume 0.04 l
  IDE00434   Particle filter: soot mass calculated 26.58 g
  IDE00435   Particle filter: soot mass measured 5.92 g
  IDE00436   Particle filter: kilometers since last regeneration 882477 m
  IDE01922   Vehicle distance driven 141876 km
  IDE03386   Long-term adaptation of reduction agent dosage 0.98 
  IDE05857   DPF statistics: current measured charging rate 0.0310 g/km
  IDE06983-MAS05392   Diesel emissions re-treatment: status-Average distance between DPF regenerations 343 km
  IDE07197   Average reducing agent since lest filling 0.80 l/1000 km

Are you sure his readiness tests have passed? I thought 0 for readiness tests in VCDS meant not passed and 1 meant passed...

[SaVAGeSoot]

Are you sure his readiness tests have passed? I thought 0 for readiness tests in VCDS meant not passed and 1 meant passed...

Yes sir (1 = not complete; 0 = complete)

[SaVAGeSoot]

You can easily validate what I'm saying on your own vehicle if you want. Look at your readiness, and assuming that all is well, it should be all zeros. Then go and erase all codes, even if you don't have any (or just erase the codes under the engine controller), then check your readiness again, and you'll see NOT zeros.

[Avantly]

I had it backwards! Thanks you sir xD

[lopez90]

Ok, not it's worse. Drove the car to the store today. I've been driving it in dynamic the last couple of weeks. Got DPF warning light in the dash again right before i was home. Had the car idle for about 30 minutes home while connecting VCDS and try a force regen. Now the glow plug light is flashing with a engine light. And the car in in limp mode.

Pulling these codes:

Saturday,15,February,2025,14:58:49:63009
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 23.3.1.0 (x64) HEX-NET2 CB: 0.4643.5
Data version: 20230421 DS346.2
www.Ross-Tech.com


VIN: WAUZZZ4G7GN086085 License Plate: BT1502



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 01: Engine Labels: 059-907-401-V2.clb
Control Module Part Number: 4G0 907 589 F HW: 4G0 907 589 B
Component and/or Version: 3.0BTD EDC17 H23 0008
Software Coding: 122A4032257603030000
Work Shop Code: WSC 24745 001 1048576
ASAM Dataset: EV_ECM30BTD0114G0907589F 001008 (AU57)
ROD: EV_ECM30BTD0114G0907589F_001.rod
VCID: 372045A45FC2E6A2FE1-8062
2 Faults Found:

5188 - Particle Filter
P2463 00 [175] - Excessive Soot Accumulation
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 141600 km
Date: 2025.02.15
Time: 14:36:27

Engine RPM: 779.50 /min
Normed load value: 10.2 %
Vehicle speed: 0 km/h
Coolant temperature: 87 C
Intake air temperature: 29 C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 14.540 V
Unlearning counter according OBD: 40
P Flt Ld fac Ash Cor: 0.8881
Particul.filter diff.pressure: 23 hPa
Exh t Adap T Oxi Cat Ds: 172.9 C
Exh t Adap TP Flt Ds: 150.8 C
Current operating mode_2-Bits 0-7: 0
Current operating mode_2-Bits 0-7: 0
Current operating mode_2-Bits 0-7: 0
Current operating mode_2-Bits 0-7: 0

5189 - Particulate Trap Bank 1
P2002 00 [175] - Efficiency Below Threshold
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 141600 km
Date: 2025.02.15
Time: 14:36:27

Engine RPM: 779.50 /min
Normed load value: 10.2 %
Vehicle speed: 0 km/h
Coolant temperature: 87 C
Intake air temperature: 29 C
Ambient air pressure: 1020 mbar
Voltage terminal 30: 14.540 V
Unlearning counter according OBD: 40
Ambient temperature: -5.3 C
DPF: offset for differential pressure: -4 hPa
Particle filter: soot mass measured: 15.45 g
Particle filter: soot mass calculated: 23.17 g
Particle filter: kilometers since last regeneration: 419830 m
Particle filter field regeneration: cancel conditions-Bits 0-7: 0
Particle filter field regeneration: cancel conditions-Bits 0-7: 0


Readiness: 1 2 0 0 0

They come straight back after i try to clear them.


The soot when the dpf light come on:
Soot mass calculated: 14.79g
Soot mass measured: 15.09g

And now after the engine light came on with flashing glowing plug (this is about 30-45 minutes on idle after dpf light):
Soot mass calculated: 23.51g
Soot mass measured: 15.61g



Says i cant do a force regen so i guess its a safety feature when i have codes. What should i do next here? Bit desperate since the car is in daily use

[Avantly]

Sounds like it is time for more diagnosis! In reference to my previous experience with the CNRB engine, I have one which accumulated soot extremely rapidly due to the SCR being severely restricted from DEF. I would not try to clear learned values and force a regen until you get to the bottom of this. You can't get a camera into the SCR due to the swirl plate that is just past the DEF injector but I would at least take a look at the injector to see how dirty/caked up with DEF it is. If the SCR is restricted I am not sure if there is any way to effectively clear it. Keep in mind that I am not greatly experienced with these engines but your symptoms (rapid soot accumulation to the point of standing regen being blocked, limp mode, etc) are extremely similar to what I last encountered with a partially blocked SCR. I am not saying that your SCR is definitely restricted, but I did find quite a few threads for similar vehicles (not Audi 3.0TDI specific) with similar issues of rapid soot accumulation due to SCR restriction.

Do you have a manifold pressure sensor? I knew for sure my SCR was blocked when I connected a manifold pressure sensor to the downstream DPF pressure sensor hose. I don't recall values but even at idle I was seeing a notably positive pressure on that downstream side of the DPF (actually, on both sides, but I was measuring downstream since I knew the DPF itself was already heavily sooted). At ~2000RPM the pressure climbed rapidly at which point I removed the SCR and pressures returned to what I would expect in an exhaust system, proving that the SCR was indeed blocked (without actually being able to see the upstream side of the catalyst due to the swirl plate blocking that view).

[lopez90]

Only minor gunk on DEF injector. Nothing clogged. Did a quick cleanup while it was out.

477027465_9336920856331005_4814327843431732621_n.jpg476967794_650882324046546_7173088458069915363_n.jpg476876092_1997411277409032_194642120122006371_n.jpg

[Avantly]

Well, I don't know what to say, I am not experienced enough with the 3.0TDI to recommend further testing. I know rapid sooting can simply be caused by a lack of regeneration/short trips, but I don't know how short those trips would have to be for this platform nor what to expect as far as soot accumulation rate. It seems that if you were having trouble with the turbo or injectors there would be other evidence of this, same should go for the EGR. All I can think of is pressure/flow testing to verify that you don't have a restriction downstream from the DPF (i.e. in the SCR) resulting in poor operation of the DPF...

[SaVAGeSoot]

OP, did you lookup (and post) the values I showed you up above in #17?
What codes did you have before you erased them?
There are specific pre-requisites that need to be met when attempting to trigger a forced\service regen, etc.

[lopez90]

Sorry, here are my readings:

20:42:27
  IDE00432   Particle filter: time since last regeneration 66636 s
  IDE00433   Particle filter: oil ash volume 0.08 l
  IDE00434   Particle filter: soot mass calculated 12.18 g
  IDE00435   Particle filter: soot mass measured 15.56 g
  IDE00436   Particle filter: kilometers since last regeneration 530918 m
  IDE01922   Vehicle distance driven 141712 km
  IDE03386   Long-term adaptation of reduction agent dosage 1.00 
  IDE05857   DPF statistics: current measured charging rate -0.0350 g/km
  IDE06983-MAS05392   Diesel emissions re-treatment: status-Average distance between DPF regenerations 52 km
  IDE07197   Average reducing agent since lest filling 0.80 l/1000 km

I have posted above my fault codes when the car went in limp mode. They came straight back when i tried to clear them. (post#22)
It's over 100km to nearest audi dealer, so i had the car in at a local shop where i know one of the mechanics has worked at VAG before. They tried to force regen it but their computer crashed, so they said it wasnt a success. Their machanic was sic so the car stood there for 3 days (without any update) before i got frustrated and got the key and left while i said i would put the car to another shop instead. When i started the car the limp mode was gone, so i'm not sure if they have reset the values or not. I went for a longer trip in high rpm to buy some time before the dpf fault message comes back again.

Tried to do a force regen myself but gets malfunction message straight away, so something is blocking it.

[Avantly]

One of the test modes will let you clear the learned values for the soot load, but be warned that past a certain soot load I believe it is hazardous to attempt a forced regen... You will get that DPF glowing red hot and I've seen this melt the underbody plastic on a 3.0TDI vehicle before.... :D

[SaVAGeSoot]

Sorry, here are my readings:

20:42:27
  IDE00432   Particle filter: time since last regeneration 66636 s
  IDE00433   Particle filter: oil ash volume 0.08 l
  IDE00434   Particle filter: soot mass calculated 12.18 g
  IDE00435   Particle filter: soot mass measured 15.56 g
  IDE00436   Particle filter: kilometers since last regeneration 530918 m
  IDE01922   Vehicle distance driven 141712 km
  IDE03386   Long-term adaptation of reduction agent dosage 1.00 
  IDE05857   DPF statistics: current measured charging rate -0.0350 g/km
  IDE06983-MAS05392   Diesel emissions re-treatment: status-Average distance between DPF regenerations 52 km
  IDE07197   Average reducing agent since lest filling 0.80 l/1000 km

One of the test modes will let you clear the learned values for the soot load, but be warned that past a certain soot load I believe it is hazardous to attempt a forced regen... You will get that DPF glowing red hot and I've seen this melt the underbody plastic on a 3.0TDI vehicle before.... :D

His loads are not an issue as per values posted.
However, his DEF dosage is.... 1 is baseline... so that tells me he's recently reset the learnt value, or there's an issue with the system and it's not functioning correctly.
He needs to run output tests on the DEF system to ensure it is functioning as per design.

I'd also suggest logging all EGTs\lambda\NOx sensors to ensure none are lazy or dead, as any of those component failures will cause issues.

When attempting a forced regen (once again, not sure why, as your DPF stats don't indicate that one is required), there are pre-requisites to be met prior to the controller allowing you to tell it what to do.

[lopez90]

Drove the car to another shop this week. Stated that the differential pressure sensor measurings was abit off so we decided to change it.
After the sensor swap he manage to force a regen. Success, for a few hours. Now i get check engine light and pulling these codes:

Address 01: Engine Labels: 059-907-401-V2.clb
Control Module Part Number: 4G0 907 589 F HW: 4G0 907 589 B
Component and/or Version: 3.0BTD EDC17 H23 0008
Software Coding: 122A4032257603030000
Work Shop Code: WSC 24745 001 1048576
ASAM Dataset: EV_ECM30BTD0114G0907589F 001008 (AU57)
ROD: EV_ECM30BTD0114G0907589F_001.rod
VCID: 372045A45FC2E6A2FE1-8062
1 Fault Found:

5162 - Particulate Filter; Differential Pressure Sensor
P2453 00 [237] - Implausible Signal
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 141904 km
Date: 2025.02.28
Time: 11:24:34

Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 255 km/h
Coolant temperature: 93 C
Intake air temperature: 12 C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 12.120 V
Unlearning counter according OBD: 40
Sensor for particle filter differential press: raw value: -147 hPa
Particle filter: difference pressure: -144 hPa
DPF: offset for differential pressure: -3 hPa
Outside temperature: 7.0 C
Particle filter: soot mass measured: 0.03 g
Particle filter: soot mass calculated: 12.60 g


Readiness: 1 1 0 0 0

-147 pha on the new sensor. After some searching around i decided to reset the differential sensor values and do a new adaptation, but i cant find adaptation in the list with vcds.
Guessing the new sensor could be faulty? The PN on the sensor doesnt say on the recipe so not sure if they used OEM sensor.

[Avantly]

If it's not an OEM sensor I'm surprised it even worked right out of the box... The china trash sensors/actuators are being sold under MANY brands in the USA (For instance, on Rock Auto, the same amazon/ebay trash sensor is being sold under names like standard motor products, ultra power, united motor products, vemo, gpd, uro parts, and the list goes on) and I've had such bad luck with them that I will install a used OEM sensor from the junkyard before I'll install that "new" china garbage xD

[SaVAGeSoot]

Your ash value seems suspect. Sorry I missed this earlier.... I was distracted by your desire to run regens, and was only looking at soot values trying to understand why.

Sorry, here are my readings:

20:42:27
  IDE00433   Particle filter: oil ash volume 0.08 l
  IDE01922   Vehicle distance driven 141712 km

This leads me to suspect that the previous owner had possibly filled up the DPF to capacity, and potentially "reset" its learnt values without actually replacing the DPF, and then sold it to you as a "good vehicle".
I'm jumping to this conclusion because you keep getting these DTCs, and your pressure reading offset is just crazy!
If I were you, I'd attempt to get a legit "service history" record from the dealership. They shouldn't need to see your vehicle to provide that, and it will most likely be free.
Once you obtain that, review it carefully, and if you don't see "dpf replaced" in the last year or so, this could be a problem
Definitely also only use an OEM sensor, and check its reading with Key On, Engine OFF.... this will eliminate the potentially clogged DPF from the equation and validate the sensor as reading correctly.

[lopez90]

Update on the case: The non OEM differential sensor got swapped with a new OEM sensor. The workshop (Toyota) did a few force regen but the DPF warning still came back. Then i got the car transported to nearest Audi workshop. They did a regen and now it's good.
If it's Toyota's diag-tools or working procedures that caused the DPF warning to come back or if Audi got other methods im not sure of, but now it doesn't throw DPF error.
Got Audi to double check the state and values of the DPF and they concluded that the DPF is now fine and didn't need replacement.

Have since then driven the car 250km in various distances without any issue. Hoping i now can finally enjoy the car.

[Avantly]

I wonder what diagnostic tool toyota was using. It seems that my Autels can't force a regen but maybe I'm wrong, I usually just use VCDS on VAGs unless I'm adding keys.

[STXA7]

Update on the case: The non OEM differential sensor got swapped with a new OEM sensor. The workshop (Toyota) did a few force regen but the DPF warning still came back. Then i got the car transported to nearest Audi workshop. They did a regen and now it's good.
If it's Toyota's diag-tools or working procedures that caused the DPF warning to come back or if Audi got other methods im not sure of, but now it doesn't throw DPF error.
Got Audi to double check the state and values of the DPF and they concluded that the DPF is now fine and didn't need replacement.

Have since then driven the car 250km in various distances without any issue. Hoping i now can finally enjoy the car.

VERY HAPPY FOR YOU ! hope you get to enjoy your car now without worrying about having to junk it. all is well, that ends well. i propose you celebrate by doing a bunch of donuts in the snow

[SaVAGeSoot]

Got Audi to double check the state and values of the DPF and they concluded that the DPF is now fine and didn't need replacement.

I did try telling you that earlier....

His loads are not an issue as per values posted.
.........
When attempting a forced regen (once again, not sure why, as your DPF stats don't indicate that one is required)

[unknid]

hi, I m from RO and have a BiTDI allroad, first thing when I bought the car an year ago I ve sent my DPF to the cleaning guys - Attention not with water! there are services who are running 700C for 24H (basically like the car would do but for a whole lotaa time), then I just put the DPF back, I never saw the DPF light on the dash. However, what I missed to do was resetting the DPF counter. I have OBD11 and I constantly check on that, when it starts the regen I m just going on the highway for the duration.

The data:

Everytime the calculated mass is at around 10, the measured is at around 16 and it starts, when it starts you can see that the car shifts the 2nd gear in 2k RPM instead of 1.4-1.6 as usual.

Almost always in RO the last regen was at 35Liters of fuel
In Austria this winter was at around 50L cause there I drove mostly on highways.

When it starts regening, you will see the measured and calculated going lower about 0.1/2G /second. I drive on the highway until the last regen was 0L ago and the calculated is left at 0.3G and measured at around 5G.

I am planning to send my DPF to the cleaning guys every 2 years and next time I ll reset the stats after that as well.

Hope this helped.

BTW, the price in RO for the cleaning is 80euros.