Quote Originally Posted by Mscarn2014 View Post
Update. Car is at 75k miles, got EPL stage 2 tune and repaired all the codes I had before at independent mechanic.
- PCV valve replacement
- Injector carbon cleaning (any car with DI, especially Audi's, should have this done periodically), mine were terrible.
- O2 spacers installed, no more codes
- While at shop, also found coolant leak, they replaced all the gaskets and O rings and fixed it right up (apparently common issue)

Other issues I want to eventually address
- Left/driver side mirror heater is out/not working
- Heated steering wheel is pretty weak for some reason?
- Terrible rattle with high bass music on rear shelf (Bose)
Try placing a rubber washer under the speaker cover. I had a similar issue and it was the cover rattling against the rest of the assembly.