2019 Audi A6 owner complaints
114 complaints filed with NHTSA, including 2 crashes, 1 fire, 2 injuries and 0 deaths.
Problems by component
Forward Collision Avoidance11 Recent complaints
August 17, 2026Unknown or OtherEngine
The factory-installed mechanical water pump module suffered a severe internal seal and housing failure. This allowed pressurized engine coolant to migrate directly into the engine's vacuum control system and vacuum lines, damaging crucial emissions and vacuum tubing. This defect poses a severe safety risk as coolant entering the vacuum grid can cause sudden loss of engine power, erratic braking assist, and localized engine overheating while operating the vehicle at highway speeds.
July 8, 2026Engine
My 2019 Audi A6 was diagnosed with catastrophic internal engine failure on May 9, 2026 at Audi of Newton, Newton, NJ, at 93,645 miles. The vehicle required a full engine rebuild performed by REV Auto NJ at a cost of $12,000. The failure involved metal debris found in the engine oil, consistent with the documented EA839 3.0L V6 TFSI rocker arm needle bearing failure or piston skirt failure affecting this engine family. The EA839 engine used in this vehicle has a documented history of design defects: (1) Rocker arm needle bearings in early production engines were undersized and prone to disintegration, releasing metal debris into the oil supply and destroying camshaft lobes, balance shafts, an
June 15, 2026Engine
I recently brought my 2019 A6 to Nyack Audi for an unrelated repair, after performing their complimentary inspection the service advisor told me my water pump was leaking coolant into the vacuum hose system; and the pump, PCV valve, sensors, solenoids and vacuum hose system need to be replaced, costing $6,186. My A6 was out of warranty at that point, so Audi would not pay for the $6,186 in repairs. Engine coolant purportedly leaks into the vacuum system and other electrical components, causing contamination of the vacuum system. Leaking coolant will cause an overheated engine and possible FAILURE of the (EA839)engine and even the turbocharger . Today I did some online research line research
May 9, 2026Electrical System
The central locking / electronic door lock system on my 2019 Audi A6 intermittently malfunctions, sometimes with a long beep sound and an error message appearing on the screen in front of my steering wheel. The affected system is available for inspection upon request. The issue does not happen all the time, but the door sometimes fails to unlock or appears to re-lock while I am trying to open it. In late April 2026, in the morning, I was leaving YogaSource in [XXX] . As I approached my vehicle in the parking lot, an unstable individual was approaching the area near my car. I attempted to enter the vehicle quickly for safety, but the central locking system malfunctioned. As I tried to unlock
May 4, 2026Engine
Every single EA839 Audi Engine has piston skirt and cylinder scoring.