ESP light - ECU rear axle

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Discussion

The Aardvark

Original Poster:

228 posts

200 months

Saturday 11th March 2023
quotequote all
I have a 2005 A3 Quattro and the ESP light is on.
Further investigation next week but initial diagnosis points to the ECU control unit on the rear axle.
I believe that a replacement part from Audi is very expensive, so question really is any ideas? Any recommendations for second hand or repair? How vital is it, ie can you run without it?

Many thanks.