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I had this exact problem with my 19 A6. Mine randomly died while I was driving. Apparently there’s an issue with the alternator and their hybrid drive system. Should be stated that no car regardless of make and price should do this if it’s brand new, let alone an Audi. This is a serious issue and I’m surprised they haven’t done anything yet to address this to prevent others from having this problem since it’s only a matter of time until this happens to someone else’s car. I wouldn’t get another Audi ever again now. Not sure if others can relate to this issue or not.
Final update. Picked up my Q8 today after one weekend short of a 3-week stay in the local Audi dealer shop. They replaced the Starter/Generator/Alternator and re-charged the drained 48 volt battery. Took so long as the parts had to be ordered and shipped in. Thank heavens this was all under warranty! But the Q8 is running well now. Glad to have it back!
Unhappy to find this thread before picking up a 2019 A7 Prestige, but happy to hear that this is a known issue and seems to be solved with a one-time fix. Here's my recent experience. All is well so far, but it's only been 4 day.
As i just posted in the "Windows rolling down on their own" thread, I was trying to fix my passenger side window rolling down on its own when I got the dreaded "Electrical System Malfunction" and then "Rear Sport Differential Malfunction". The errors went away after I turned the SUV off and on again. The window stayed up after the vehicle heated up from the 40+F temperature change in Chicago between Friday night and Saturday morning.
This happened to me as well. Electric system malfunction. Car started acting haunted. Windows rolling down, differential errors. Limp mode - you name it.
Car at dealer now. Hopefully the APR tune isn’t even brought up.
Typical dealer fashion, they marked up the part $885.
I ordered my own from Audi Columbus Ohio. Of coarse part is backordered from Germany. Oh well. 7-10 days because I paid $250 “code red” expedited order.
part # 4N0-903-028-R
$1315 online Audi Columbus vs $2200 from local dealer. (Same dealer that wanted $10K plus to replace my steel brake rotors/pads).
since there’s a TSB, I strongly recommend anyone considering a tune make sure your alternator is good first.
04-09-2022, 08:59 AM
Same problem
