NHTSA lists 4 safety recalls and 22 owner complaints for the 2015 Audi A6. Most complaints involve engine (6) and air bags (4). The EPA rates it 21–29 mpg combined, and NHTSA gives it 5 stars overall.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2015-2016 Audi A6 Sedans and 2015 Audi A7 vehicles. The auxiliary heater electrical connector on these vehicles may have been incorrectly inserted into the auxiliary heater, possibly resulting in increased electrical resistance.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S6 and S7, 2012-2018 A7 and A6 Sedan, and 2014-2018 RS7 vehicles equipped with basic seats (with or without heating). Stress or wear of the body-sensing mat within the front passenger seat may cause the Passenger Occupant Detection System (PODS) control module to malfunction.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2017 Audi A5 Cabriolet, A5 Sedan and Audi Q5 vehicles, 2012-2015 Audi A6 vehicles and 2013-2016 Audi A4 Sedan and A4 allroad vehicles. These vehicles, equipped with 2.0l Turbo FSI engines, have an electric coolant pump that can either become blocked with debris from the cooling system causing it to overheat or can short-circuit from moisture within the pump.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Complaints for each A6 model year we’ve synced.
| Model year | NHTSA complaints |
|---|---|
| 1996 | 54 |
| 1997 | 21 |
| 1998 | 130 |
| 1999 | 217 |
| 2000 | 148 |
| 2001 | 113 |
| 2002 | 103 |
| 2003 | 71 |
| 2004 | 35 |
| 2006 | 67 |
| 2007 | 53 |
| 2008 | 71 |
| 2009 | 21 |
| 2010 | 17 |
| 2011 | 21 |
| 2012 | 60 |
| 2013 | 52 |
| 2014 | 41 |
| 2015 | 22 |
| 2016 | 51 |
| 2017 | 20 |
| 2018 | 2 |
| 2026 | 9 |
“Coolant sprayed on engine components due to leaking Coolant /Water pump. Coolant level is falling below minimum level - Problem confirmed by the dealer 1. Water pump 2. Coolant sprayed onto engine components - potential fire hazard 3. Confirmed by dealer 4. Unknown 5, Umknown”
“The contact's sister owns a 2015 Audi A6. The contact stated that while his sister was driving 35 MPH, the vehicle crashed into the rear of a Toyota 4Runner. The driver sustained injuries to the chest and neck and had back pain. Medical attention was not provided. The front bumper and frame, and hood were damaged. The air bags failed to deploy. The vehicle was towed to a tow lot. There was no Police report filed. The drivers exchanged information. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 129,000.”
“The contact owns a 2015 Audi A6. The contact stated that while driving on neighborhood roads at approximately 25 MPH, the coolant warning light was illuminated. The contact proceeded to park on the side of the road and walk to her residence to pick up coolant to refill the coolant tank. The vehicle was then taken to the independent mechanic where it was diagnosed that the coolant tank needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 79,000.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| A6 quattro Auto (S8), 6 cyl, 3.0 L, Diesel, Turbo · All-Wheel Drive | 24 | 38 | 29 | $3,250 | 349 |
| A6 Auto (AV-S8), 4 cyl, 2.0 L, Turbo · Front-Wheel Drive | 25 | 33 | 28 | $2,850 | 320 |
| A6 quattro Auto (S8), 4 cyl, 2.0 L, Turbo · All-Wheel Drive | 20 | 29 | 23 | $3,450 | 386 |
| A6 quattro Auto (S8), 6 cyl, 3.0 L, Sup Charg · All-Wheel Drive | 18 | 27 | 21 | $3,800 | 414 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
4 safety recalls as of Oct 29, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 22 complaints with NHTSA. The most-cited components are engine (6), air bags (4), engine and engine cooling (4). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2015 Audi A6 at 21–29 mpg combined, depending on engine and drivetrain (4 versions rated).
NHTSA's New Car Assessment Program gives the 2015 Audi A6 5 out of 5 stars overall.