2015 Audi A6 Engine cooling Problems
- Complaints
- 4about this part
- Share
- 18%of 22 total for the year
- Median mileage
- 79,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2015 Audi A6, 18% of the 22 complaints for this model year. Where a mileage was given, the median is 79,000 miles. 2 recall campaigns on record are filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #11620102, filed 2024-10, 79,000 miles“The contact owns a 2015 Audi A6. The contact stated while driving 65 MPH, the oil warning light illuminated. The contact veered to the side of the road and called for roadside assistance. The vehicle was towed to a local dealer to be diagnosed. The contact was informed that the oil level was extremely low due to an oil leak. The contact was informed that the timing chain kit and camshaft cover needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 85,000.”
NHTSA complaint #11455029, filed 2022-03, 85,000 miles“The contact owns a 2015 Audi A6. The contact stated that while the vehicle was parked, there was antifreeze leaking underneath the vehicle. The contact stated that the leak was a recurring failure. The contact stated that after starting the vehicle, the Turn Off Engine, Check Coolant Level message was displayed. The vehicle was taken to a local dealer and the coolant pump was replaced under NHTSA Campaign Number: 18V229000 (Engine and Engine Cooling). The vehicle was repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 78,000.”
NHTSA complaint #11500532, filed 2023-01, 78,000 milesRelated recalls
- 18V229000Apr 11, 2018Volkswagen 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…Covers: Audi A6 2012–2015, Q5 2013–2017, A5 2013–2017 +2 more
- 17V002000Jan 3, 2017Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2017 Audi A5, A5 Cabriolet and Q5 vehicles, 2013-2016 Audi Allroad and Audi A4…Covers: Audi A6 2012–2015, Q5 2013–2017, A5 2013–2017 +1 more
Related service bulletins
- 10249238Jan 19, 2024SERV_ACT - After-Run Coolant Pump - Closure Notice
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 1 | 6% |
| 2016 | 2 | 4% |
| 2015 | 4 | 18% |
| 2014 | 1 | 2% |
| 2013 | 1 | 2% |
| 2012 | 3 | 5% |
| 2010 | 2 | 12% |
| 2008 | 3 | 4% |
| 2007 | 3 | 6% |
| 2006 | 2 | 3% |
| 2005 | 3 | 3% |
| 2004 | 3 | 9% |
| 2003 | 3 | 5% |
| 2002 | 15 | 17% |
| 2001 | 18 | 16% |
| 2000 | 21 | 14% |
| 1999 | 17 | 8% |
| 1998 | 6 | 5% |
| 1997 | 1 | 5% |
| 1996 | 2 | 4% |
| 1995 | 1 | 6% |
Other parts of the 2015 Audi A6
6 complaintsAir bags
4 complaintsElectrical system
3 complaintsBrakes
2 complaintsFuel system
2 complaintsOther or unknown
2 complaintsSteering
2 complaintsSuspension
1 complaintsTransmission and drivetrain
1 complaintsWheels
1 complaints
← All problems reported for the 2015 Audi A6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology