Neil P

Just to keep you updated. Car still with Lookers Teesside, Audi UK asked them to replace the 12v battery and give it a run and run another diagnostic check. The ran the car for 25 miles with no issues and the diagnostic checks came back clear. The dealer has agreed to keep the car and do some further tests as I'm not convinced that the alternator / generator is working. Does anyone have any idea how many miles you would have to travel on a full battery before it was fully discharged if the alternator / generator was not charging the battery.

What a brilliant site this is, thanks to all posters. I've been struck by the dreaded BSGs as well. Last Saturday week I had the same sequence of lights very quickly resulting in a dead stop just before the A19, thank goodness. My car is a 2019 Q7 50TDI just out of warranty. I rang Audi Teesside, and they said get it to us and we will have a look but this will take at least a week! RAC recovery detected an alternator fault but they told me to verify this as they could not be 100% certain. They recovered the car to home and I arranged to get the car to independent Audi specialist. Last Thursday they told me that my BSG was faulty and a replacement would be 3K. I told them I would ring them back and subsequently found this site, thank goodness. Rang Lookers Teesside and told them my car was on it's way. They said they would have to do their own diagnostic checks They rang me back late Friday to say that the BSG is faulty. They did not know about the extended warranty!! what a surprise and they were getting in touch with Audi Technical. They rang back today stating that they have been instructed to undertake earthing checks, which they are on with They have as yet not mentioned a fee for the diagnostic checks or the earthing checks. I will keep you posted. Neil