Sport differential replacement - No Basic Setting fault - 2014 S4

[grantlakely]

Hi,

My rear diff failed and started making a very loud whining noise. I got a replacement used rear differential with the same model/part numbers.

The used diff was installed and the sound is gone and the car seems to drive well but now I have "Sport Diff System Fault" coming up on the dash.

The VCDS code is as follows:

-------------------------------------------------------------------------------
Address 22: AWD (J492) Labels: 8K0-907-163.clb
Part No SW: 8K0 907 163 B HW: 8K0 907 163 A
Component: 4 Wheel Drive H14 0100
Serial number: 001103140001136 Dataset Number: 8K0909104D 0025
ASAM Dataset: EV_AllWheelDiffeQSPCAN 003019
ROD: EV_AllWheelDiffeQSPCAN.rod
VCID: 2F3B1A386790F512F69-807A
1 Fault Found:
0258 - No Basic Setting
B2010 00 [10001001] - -
[Fingerprint invalid L2 DTC_MPT_FP_invalid]
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 5
Reset counter: 254
Mileage: 145976 km
Date: 2024.12.09
Time: 09:18:42
-------------------------------------------------------------------------------

The indy shop that installed the rear diff didn't want to try any coding for fear of bricking the car. The dealership wants $540, but will not guarantee success so I'm out $540 if they are unsuccessful. Another (more competent) indy shop an hour away wants $500 for the coding.

What are my options here? I'm quite technical, is there a way to DIY this? Or should I just suck it up and pay the dealer? Furthermore, is it safe to drive the car with this system fault (not that I have a choice).

[Waffles_s4]

Hi,

My rear diff failed and started making a very loud whining noise. I got a replacement used rear differential with the same model/part numbers.

The used diff was installed and the sound is gone and the car seems to drive well but now I have "Sport Diff System Fault" coming up on the dash.

The VCDS code is as follows:

-------------------------------------------------------------------------------
Address 22: AWD (J492) Labels: 8K0-907-163.clb
Part No SW: 8K0 907 163 B HW: 8K0 907 163 A
Component: 4 Wheel Drive H14 0100
Serial number: 001103140001136 Dataset Number: 8K0909104D 0025
ASAM Dataset: EV_AllWheelDiffeQSPCAN 003019
ROD: EV_AllWheelDiffeQSPCAN.rod
VCID: 2F3B1A386790F512F69-807A
1 Fault Found:
0258 - No Basic Setting
B2010 00 [10001001] - -
[Fingerprint invalid L2 DTC_MPT_FP_invalid]
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 5
Reset counter: 254
Mileage: 145976 km
Date: 2024.12.09
Time: 09:18:42
-------------------------------------------------------------------------------

The indy shop that installed the rear diff didn't want to try any coding for fear of bricking the car. The dealership wants $540, but will not guarantee success so I'm out $540 if they are unsuccessful. Another (more competent) indy shop an hour away wants $500 for the coding.

What are my options here? I'm quite technical, is there a way to DIY this? Or should I just suck it up and pay the dealer? Furthermore, is it safe to drive the car with this system fault (not that I have a choice).

Many dealers offer warranty for 12 months on the work done, maybe find one that honors that, or a dealership that wont charge if they dont resolve the issue?

[grantlakely]

Thanks, I found another dealer that estimated $260 because it’s one hour of labor. So less than half.

[grantlakely]

Just for anyone’s information, I got this resolved at the dealership with an adaptation.

Something they needed was the mileage of the used sport diff as they have to input “friction values.”

It doesn’t seem like it’s DIYable, this wasn’t some quick VCDS procedure, the tech had time to come out and talk to me about the sport diff fluids while it was adapting.