2011 S4 electrical issues

[ClearedHot]

Hey all, hoping for some help with a problem I've been dealing with. I’m getting the ESC light, steering light, and messages for "stabilization fault" and "sport differential fault." This started soon after I got the car, along with the left-side passenger windows and reverse guide lines not working. I swapped the battery with an aftermarket one from Amazon, not realizing it needed BEM coding. The issues disappeared briefly, but then came back after a few days. Both left-side windows still don’t work, but the driver's side is fine.

I bought OBDEleven and pulled some fault codes. After a lot of digging, I realized I never coded the battery properly. A few months went by (I got busy), and I assumed I probably messed up the battery. Checked Block 19 on the gateway control module, and it showed 0% SoC.

I decided to get a new Varta battery (610 402 092) and installed it, but it didn’t come with a BEM code. I coded "000915105DL" for the part number, "VAO" for the manufacturer, and grabbed a serial number from another 110Ah Varta battery I found online, changing the last digit. After that, Block 19 still shows 0% SoC, and Block 20 shows the battery capacity at 52Ah, so it seems like I still messed up the programming.

Not sure if the battery is still the issue or something else. Checked all the fuses in the ECU fuse box, and they’re all good. I’m stuck in a pretty rural area in Japan with no nearby Audi dealerships, and there’s a language barrier since I don’t speak Japanese. Really hoping to fix this myself. Any advice is much appreciated! Thanks in advance!

OBDeleven vehicle history log
Date: 2024-09-12 23:08:25

VIN: WAUZZZ8K4BA077715
Car: Audi S4
Year: 2011
Body type: UNKNOWN
Engine: CAKA kW ( hp) l
Mileage: 96850 km

---------------------------------------------------------------
Full scan
Control Units: 26
Fault count: 8
Control Units:
10 Parking Assistance
System description: PARKHILFE 8K
Software number: 8K0919475R
Software version: 0070
Hardware number: 8K0919475A
Hardware version: H06

Faults:
No trouble codes found

05 Keyless System
System description: BCM2 2.0
Software number: 8K0907064CG
Software version: 0434
Hardware number: 8K0907064CG
Hardware version: H05

Faults:
No trouble codes found

08 Air Conditioning
System description: KLIMA 3 ZONEN
Software number: 8T2820043AG
Software version: 0180
Hardware number: 8T2820043AG
Hardware version: H08

Faults:
No trouble codes found

0E Media Player
System description: CDC-MP3-Pana
Software number: 8X0035110C
Software version: 0490
Hardware number: 8X0035110
Hardware version: H41

Faults:
No trouble codes found

19 Gateway
System description: GW-BEM 4CAN-M
Software number: 8T0907468AD
Software version: 0117
Hardware number: 8T0907468K
Hardware version: H09

Faults:
No trouble codes found

17 Dashboard
System description: KOMBIINSTR.
Software number: 8K0920931
Software version: 0258
Hardware number: 8K0920931
Hardware version: H08

Faults:
No trouble codes found

36 Driver Seat
System description: MEM-FS
Software number: 8K0959760D
Software version: 0074
Hardware number: 8K0959760D
Hardware version: H06

Faults:
No trouble codes found

46 Comfort System
System description: BCM2 2.0
Software number: 8K0907064CG
Software version: 0434
Hardware number: 8K0907064CG
Hardware version: H05

Faults:
No trouble codes found

42 Driver Door
System description: TSG FA
Software number: 8T0959793M
Software version: 1401
Hardware number: 8T0959793D
Hardware version: H08

Faults:
No trouble codes found

47 Sound System
System description: DSP Prem
Software number: 8T0035223AN
Software version: 0190
Hardware number: 8T0035223AK
Hardware version: H10

Faults:
No trouble codes found

57 TV Tuner
System description: DTV-JP
Software number: 8F0919129E
Software version: 0760
Hardware number: 8F0919129
Hardware version: H07

Faults:
No trouble codes found

56 Radio
System description: Radio U JP
Software number: 4G0035083
Software version: 0055
Hardware number: 4G0035083
Hardware version: H50

Faults:
No trouble codes found

53 Parking Brake
System description: EPB Audi B8
Software number: 8K0907801H
Software version: 0100
Hardware number: 8K0907801H
Hardware version: H09

Faults:
No trouble codes found

55 Headlight Regulation
System description: AFS 1 H01
Software number: 8H0907357C
Software version: 0030
Hardware number: 8H0907357C

Faults:
No trouble codes found

6C Rear View Camera
System description: J772__Rearview
Software number: 8T0907441C
Software version: 0040
Hardware number: 4L0907441B

Faults:
No trouble codes found

14 Wheel Dampening
System description: DAEMPFUNGS-SG
Software number: 8R0907364B
Software version: 0053
Hardware number: 8K0907364
Hardware version: H09

Faults:
No trouble codes found

09 Central Electrics
System description: BCM1 1.0
Software number: 8K0907063P
Software version: 0392
Hardware number: 8K0907063P
Hardware version: H30

Faults:
No trouble codes found

16 Steering Column
System description: Lenks.Modul
Software number: 8K0953568G
Software version: 0014
Hardware number: 8K0953568G
Hardware version: H17

Faults:
No trouble codes found

5F Multimedia
System description: H-BN-JP
Software number: 8T2035678D
Software version: 0272
Hardware number: 8T2035678
Hardware version: H15

Faults:
No trouble codes found

72 Rear Right Door
System description: TSG HR
Software number: 8T0959795N
Software version: 1401
Hardware number: 8T0959795B
Hardware version: H06

Faults:
No trouble codes found

62 Rear Left Door
System description: TSG HL
Software number: 8T0959795N
Software version: 1401
Hardware number: 8T0959795B
Hardware version: H06

Faults:
00532 - Supply voltage
static



03 Brakes
System description: ESP8 quattro
Software number: 8K0907379BJ
Software version: 0050
Hardware number: 8K0907379BJ
Hardware version: H04

Faults:
01324 - All wheel drive control module
static


03110 - Active steering control module
static



52 Passenger Door
System description: TSG BF
Software number: 8T0959792M
Software version: 1401
Hardware number: 8T0959792D
Hardware version: H08

Faults:
00532 - Supply voltage
static



15 Airbag
System description: AirbagVW-AU10
Software number: 8K0959655L
Software version: 0610
Hardware number: 8K0959655L
Hardware version: H41

Faults:
No trouble codes found

1B Active Steering
System description: DYNAMIKLENK.
Software number: 8K0907144E
Software version: 0580
Hardware number: 8K0907144E
Hardware version: H06

Faults:
01087 - Basic settings not carried out
static



22 All Wheel Drive
System description: 4 Wheel Drive
Software number: 8K0907163A
Software version: 0025
Hardware number: 8K0907163A
Hardware version: H10

Faults:
U102000 - Active steering control module
Read out DTC
static


U102000 - Active steering control module
Read out DTC
static


U101700 - ABS brake control module
Read out DTC
static

[maksym]

Did you do anything else besides changing the battery? I have no experience using a non-oem battery. One relevant bit is that abs, stability, rear differential and a few other systems are all interconnected since they all rely on inputs from each other. Something like a disconnected wheel speed sensor would throw errors in all of them at once.


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[ClearedHot]

No, unfortunately I did not. Do you think those systems would also be tied to the predictive lines you see when you reverse? The lines that help you back into a parking spot. I ask because the first time the issue occurred, those lines also disappeared until I replaced the battery.

[ClearedHot]

I think I can use OBDeleven live data while driving and verify that I’m getting good wheel speed from each of the sensors

[slykens]

Have you checked the fuses in the block in the trunk on the right side?

I’ve got some accessories in my car wired in through there and had some strange codes pop up while I was installing those that I think might be similar to the codes you’re seeing.

[Smac770]

Don't know why you have voltage errors on the front right and rear left doors, and not the others, or any other modules. But the only "real" error in all that seems to be:

1B Active Steering
01087 - Basic settings not carried out

So you need to do the dynamic steering basic setting.

[ClearedHot]

Don't know why you have voltage errors on the front right and rear left doors, and not the others, or any other modules. But the only "real" error in all that seems to be:

1B Active Steering
01087 - Basic settings not carried out

So you need to do the dynamic steering basic setting.

Thank you so much! This fixed the issue! I went ahead and did the dynamic steering basic setting and the lights went away. I’ve been trying to fix this issues for a few months now. After your help, my wife teased and said I should’ve just reached out to this forum months ago haha.

My car is right hand wheel drive. Both left side passenger door windows are still not working. When I press the switch, I hear a clicking noise on each respective door. Is there something that’s wired in series or a fuse that is just for the left side windows? I imagine it has to be something in common between the two windows. Below are the codes I’m still getting for both windows.

OBDeleven vehicle history log
Date: 2024-09-13 21:05:14

VIN: WAUZZZ8K4BA077715
Car: Audi S4
Year: 2011
Body type: UNKNOWN
Engine: CAKA kW ( hp) l
Mileage: 96860 km

---------------------------------------------------------------
52 Passenger Door
System description: TSG BF
Software number: 8T0959792M
Software version: 1401
Hardware number: 8T0959792D
Hardware version: H08

Faults:
00532 - Supply voltage
static


02111 - Motor for window regulator
static


OBDeleven vehicle history log
Date: 2024-09-13 21:05:42

VIN: WAUZZZ8K4BA077715
Car: Audi S4
Year: 2011
Body type: UNKNOWN
Engine: CAKA kW ( hp) l
Mileage: 96860 km

---------------------------------------------------------------
62 Rear Left Door
System description: TSG HL
Software number: 8T0959795N
Software version: 1401
Hardware number: 8T0959795B
Hardware version: H06

Faults:
00532 - Supply voltage
static


02111 - Motor for window regulator
Intermittent

[Smac770]

The B8.0 left side doors share power fuses. And the B8.0 right side doors share power fuses. (for B8.5, they figured out they only needed one power supply line to the door modules, so same idea, just one fuse each side)

The B8.0 left side doors have fuses at panel C (driver's end of the dash), column brown, fuse 8 and fuse 11. Check and make sure both those fuses are showing 12v on each side (the metal test pads on the top face are one on each side of the fuse link). The column brown on the dash ends is term 30, battery 12v, so they should show 12v at all times.

[ClearedHot]

The B8.0 left side doors share power fuses. And the B8.0 right side doors share power fuses. (for B8.5, they figured out they only needed one power supply line to the door modules, so same idea, just one fuse each side)

The B8.0 left side doors have fuses at panel C (driver's end of the dash), column brown, fuse 8 and fuse 11. Check and make sure both those fuses are showing 12v on each side (the metal test pads on the top face are one on each side of the fuse link). The column brown on the dash ends is term 30, battery 12v, so they should show 12v at all times.

You’re one smart person! The fuse was bad so I put a new one in and now it’s all good to go. Thank you for all of your help, you saved me from shelling out so much money trying to work it with a Japanese mechanic.

[Smac770]

No problem, glad it turned out to just be simple stuff.