2015 Audi A6 Engine Problems
- Complaints
- 6about this part
- Share
- 27%of 22 total for the year
- Median mileage
- 55miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine of the 2015 Audi A6, 27% of the 22 complaints for this model year. Where a mileage was given, the median is 55 miles.
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.
“I'm extremely frustrated and disappointed in our check and balances with Audi and these safety recalls. I own a 2015 Audi A6, back in june I found that there are two safety recalls with the front airbags that have killed 20 and injured over 100 people. I've done a lot of research. The airbags are more likely to explode in hot states and I'm located in socal, particularly the valley, which is the hottest part of la, reaching 100 degrees + throughout the summer. …”
NHTSA complaint #11120016, filed 2018-08, 55 miles“The brakes are grabby and with a gentle depression of the brake pedal the car comes to a sudden jerky stop. Usually happens from slowing down from 10mph to 0mph the transmission jerks hard when speed drops from 15mph the engine erroneously shows check engine light during normal driving. Cylinders show oil leakage repeatedly. This has become a repeat issue and have asked the dealer / service center to report this as a manufacturing issue”
NHTSA complaint #11384223, filed 2020-12, 10 miles“Owner was notified of safety recall 19n4 - disconnect electric coolant pump and had the recall service performed on 29 dec 2018. Owner was informed that an additional safety recall (19o2) will replace the coolant pump with a new one. On 04 march 2019, we called Audi USA and were told that the replacement was not yet available. The coolant pump also aids in providing additional cabin heat which is important during the winter months for the comfort and safety of occupants in the vehicle. Due to the pump being disconnected, the cabin has been very slow to warn, including the window defrosters. …”
NHTSA complaint #11184510, filed 2019-03, 73,493 miles“Im an active duty military service member stationed overseas in south korea. I currently own a 2015 Audi A6. I was recently notified that my vehicle had 2 recalls placed, specifically on the electric coolant pump and on the passenger occupant detection system (pods). I visited my local Audi dealership in korea and the Audi staff said that they cannot fix or repair the issue since it is a u.s. Specific recall. I called the u.s. Audi service desk and they also said that they cannot help with the issue and told me to check with NHTSA. …”
NHTSA complaint #11171485, filed 2019-01“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”
NHTSA complaint #11555740, filed 2023-11Related service bulletins
- 11035797Jul 9, 2026This special notice is to inform dealers to return the parts listed if it meets the criteria provided.
- 11034657Jun 26, 2026This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
- 11034728Jun 10, 2026This bulletin provides informaiton when the engine is not running smoothly, misfiring.
- 11029368Feb 20, 2026This bulletin provides information on the use of the Audi frequencly analysis app, and where the application can be downloaded.
- 11029367Feb 20, 2026This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
- 11028398Jan 14, 2026This bulletin provides information regarding UV leak additive for finding oil leaks.
- 11027356Dec 11, 2025This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
- 11016532Mar 12, 2025This bulletin provides informatin when the engine does not run smoothly at idling speeds.
- 11012476Dec 5, 2024This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000.
- 11009928Oct 8, 2024This bulletin provides informatin when the engine does not run smoothly at idling speeds.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 14% |
| 2021 | 3 | 17% |
| 2020 | 1 | 4% |
| 2019 | 32 | 28% |
| 2018 | 7 | 64% |
| 2017 | 4 | 20% |
| 2016 | 17 | 33% |
| 2015 | 6 | 27% |
| 2014 | 5 | 12% |
| 2013 | 15 | 29% |
| 2012 | 13 | 22% |
| 2011 | 2 | 10% |
| 2010 | 1 | 6% |
| 2008 | 2 | 3% |
| 2007 | 2 | 4% |
| 2006 | 4 | 6% |
| 2005 | 4 | 4% |
| 2004 | 1 | 3% |
| 2003 | 3 | 5% |
| 2002 | 5 | 6% |
| 2001 | 2 | 2% |
Other parts of the 2015 Audi A6
4 complaintsEngine cooling
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