Audi Rumble is present on this vehicle, Audi disregards it even after visiting the dealer many times over the issue. Center diff is what is causing it. No issue up to 30k miles, then the rumble started. I am afraid of the drivetrain breaking and locking up during driving which could be catastrophic. Audi does have TSBs on this exact issue from previous model years, this model year doesnt. More complaints should come in eventually for this exact issue.

Source: NHTSA complaint ODI #11697332 · view all complaints for this vehicle at nhtsa.gov

First Incident [XXX], in Columbia SC driving in parking lot On Post, approx 10pm, blocking traffic. Car shut down and MMI disappeared. After approximately 20-30 minutes car started, still no screen. I was able to drive it. Next day, Rebooted per Google, took to dealership who said I should make sure I used premium gas. When I said I did I was told to be careful which gas station I bought it from. And since the screen was back up they couldn’t do anything. I called the Corporate office who had them run a full systems check. All with MMI was well until [XXX] at [XXX]pm. Driving in Columbia SC screen disappeared again but car did not stop this time. I called dealership who told me to press the volume button until it rebooted. It didn’t work. I was told to bring it in. The Audi App sent me a Headlight Assistant Malfunction Warning! message at 7:44pm also, same evening as the MMI incident. Copy of current screen and 10/24 service receipt. This is a dangerous situation as someone almost hit the back of my car during the first incident since the stop was so sudden ([XXX]) I was blocking the driveway and cars had to backup and detour in a small dark area. Losing MMI while driving is a distraction. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11669083 · view all complaints for this vehicle at nhtsa.gov

After owning the vehicle for less than one-year (~20k) miles, the front brakes started to pulse and make noise when stopping. Stopping distance was reduced. The dealer recommended that the rotors be replaced and did so at zero cost as a courtesy. Twelve weeks later, the pulsing and noise and reduced stopping distance started again. This time they refused to pay for the repair and blamed "braking habits". Audi national customer care also refused to do anything. The car is mostly driven on the highway and most of the braking is done by the adaptive cruise control. There is no other evidence of hard driving (i.e. tire wear or low gas mileage). The problem is almost certainly the calipers which should not fail after a year. Reduced stopping distance and brake failure are a safety hazard.

Source: NHTSA complaint ODI #11657439 · view all complaints for this vehicle at nhtsa.gov