sap_pete

I'm having a problem with my 2021 Q8. Two weeks after I bought the car, it starting having intermittent issues starting, with some grinding / cranking noises. No rhyme or reason to when it happens, hot or cold, sitting overnight or 30 minutes. Happens several times a day.
https://i.imgur.com/fsGJBu9.mp4
It's throwing some random errors on the display along with it (not always the same ones). Usually shutting it off and restarting it works, but the last time it failed 6 times in a row, and I stopped trying at that point. That last time the check engine light stayed on.
The car is on its 3rd service visit, and has been at the dealer for 30 days now (lemon territory in my state), and they can't seem to figure it out.
So far,
"loose ground wire to ECM, battery replaced"
"replaced main power relay"
"ABS control module replaced" (10 days to get part)
Update:
"replaced brake sensor in master cylinder, overlay section of new wiring in ABS circuit" (waiting on part, one week and counting)

Has anybody here seen this issue before ?

Update II:
Called Audi Customer Experience line to initiate replacement process for car. Review process takes 7 weeks. WTF !

sap_pete

Update:
Car still isn't fixed, has been at the dealer for over 2 months straight. Audi agreed to buy it back and give me back every dime I paid, with a "loyalty assistance" payment on top of it.
Just made a reservation payment for a new car already on the boat (2021 SQ8).

Michael99

It sounds like Audi did the right thing. That is good to hear.

sap_pete

SQ8 arrived, but Audi is still finalizing the Q8 buyback. #firstworldproblems