AudiTK

It was two injectors, and no cause or speculation on their part.
hopefully an isolated fluke, but for two of them to go at the same time I'm not sure that its too isolated.

I have been using tier 1 gas stations (Esso in Canada) for 20 years... so unless Esso did something to their formula recently there should be no issues with it...

JT4

Yeah, I happen to agree in that if it was one injector ok maybe a fluke. But two injectors on a vehicle with approx 12K miles on it.. I'm also not too sure..

Well hopefully all be be good moving forward..

AudiTK

Time will prove it out... right now the Audi Customer Service I've been getting is whats going to keep me from buying another one.... They are very "I did you a favor by letting you by this car" kind of people right now.... not impressed.

hopefully I don't have to go into the shop too many times, there is only so much of that I'm willing to put up with.

Enjoy your Q7, and hopefully your bearing issues are resolved properly.