4.2 TDI - ABS, ESP, G85 Errors

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Jul 10, 2024 | 03:46 AM

FronteraJones

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4.2 TDI - ABS, ESP, G85 Errors

Hello guys, I'm new here. I recently changed the air struts in the rear of my Audi A8 4e with 4.2 tdi, also changed all the roof modules and the circuit board of the mmi control as I had water come in through the roof window when heavy rain occured(both roof modules and mmi control where not functioning at all or badly).Since then abs and esp light are on. I had the battery disconnected and I think thats the reason the fault with the G85 occured. I found out that the ABS control unit had softcode 000000 and everything else 0s. So I tried coding it according to:

and was able to perform it. But after it I only got error when trying to get the reading of steering angle, and in the errors there is still a "system test", which can be seen how to do here:

. As my car currently is not allowed to drive yet (need to get technical inspection) it will take time until that. The other 2 errors in the ABS control unit with the G85 are gone now.

My question is can anyone of you guys tell me if I need to replace anything for sure? In the first video they say that after softcoding the ABS control unit you should be able to see the steering angle right afterward, but I cannot. What part do I need to change most realistically? Is the steering angle sensor enough? Or could it be relais? If yes where do I have to look?

I am kind of lost on my own, so I'm really thankful for any help!
Thanks a lot!

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