Problems · NHTSA complaints

2016 Audi A6 problems

Owners filed 51 complaints about the 2016 Audi A6 with NHTSA between Mar 2016 and Mar 2026. The most-cited component is engine (17).

Complaints
51
Filed with NHTSA
Crashes
0
Reported by owners
Fires
2
Reported by owners
Injuries
1
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Engine17
  2. Air bags8
  3. Electrical system8
  4. Fuel/propulsion system6
  5. Power train5
  6. Service brakes3
  7. Vehicle speed control3
  8. Forward collision avoidance2
  9. Steering2
  10. Engine and engine cooling2
  11. Fuel system, gasoline2
  12. Structure2
  13. Suspension1
  14. Tires1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Oct 29, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20162
20174
201810
20197
20201
20214
20225
20239
20245
20253
20261

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Engine

17 reports2 fires
“The water pump on my 2016 Audi A6 has failed multiple times prematurely. The first water pump failed at 36,965 miles in May 2019. That repair was covered under an extended warranty I purchased. The second water pump failed around 83,000 miles in September 2025, and Audi is now quoting me $2,350 out of pocket to replace it. I am now facing a third water pump replacement, which is far earlier than expected for this type of component. These repeated failures create a significant safety concern, as sudden coolant loss can cause the engine to overheat, potentially leading to engine failure or loss of power while driving. Each problem has been diagnosed and confirmed by an authorized Audi service center. The vehicle was inspected by Audi technicians, and repairs were recommended both times. The repeated failure of this critical component strongly suggests a systemic defect with the water pump design on this model. Despite a recent Audi water pump settlement, my vehicle was excluded, even though it has now experienced two failures and is requiring a third replacement.”
Owner complaint to NHTSAFiled Sep 10, 2025EngineODI 11686225

Air bags

8 reports1 related recall
“This vehicle had a claim for water pump replacement and the 3.0 model has a recall for the turbo charger. This vehicle is experiencing the same issues and went from 70 mph to 0 and stalled on the freeway. Thankfully the semi and other vehicles were able to avoid me or my family would be reaching out instead of me. Currently the vehicle is parked in my garage because it is unsafe to drive. Can you please advise Audi to take responsibility and offer the same recalls on the 2.0 vehicles for the water pump and turbo charger because they have the same internal parts as the 3.0 vehicles that failed and these parts were covered.”
Owner complaint to NHTSAFiled Mar 25, 2025Power train, Air bags, EngineODI 11650550

Electrical system

8 reports1 fire1 related recall
“The contact owns a 2016 Audi A6. The contact stated that while driving approximately 40 MPH, the vehicle suddenly experienced a loss of motive power and stalled. During the failure, the message Electric Power Control "EPC" was displayed. The vehicle was later towed to the local dealer who diagnosed that the electric wiring harness located in the engine compartment had failed due to moisture intrusion and the harness along with an internal computer needed to be replaced. No further information was available. The vehicle was not yet repaired. The failure mileage was 49,000.”
Owner complaint to NHTSAFiled May 2, 2024Electrical systemODI 11586615

Fuel/propulsion system

6 reports1 fire
“There is a recall out for “2016 Audi A6 vehicles” the recalls are “fuel system rail” as well as “coolant pump”. Both recalls are vin specific and what I find to be devastating is that both recall risk pertains to possible fire! I have the exact issues with my vehicle I even have the epc light coming on and the code is “fuel rail system” I also have an ongoing issue with my coolant system. I have documentation that I’ve paid out of pocket to take care of these issues, however being that there is no current open recalls under my vin number I do not believe mechanics know exactly what to do to fix the issues. The vehicle is misfiring, shutting off and the EPC code is stating “fuel system rail” along with the coolant leaking. I have a [XXX] daughter and to be such an expensive vehicle, I thought I would feel safe and valued. I’ve worked as a service BDC manager for years and at other dealerships when a situation like this would occur, we still wanted them to bring the vehicle into the dealership and if it was in fact relatable to the recall we would take care of it, regardless to it being “vin specific”. There is a such thing as “silent recall”. I really hope that…”
Owner complaint to NHTSAFiled Mar 29, 2026Unknown or other, Fuel/propulsion systemODI 11727798

Power train

5 reports
“I took the vehicle into a repair shop because the check engine light is on. I was advised that the water pump is leaking and it needs to be replaced along with the thermostat. The turbo charger assembly also needs to be replaced. Both of these items appear to be deficient and were listed under recent recalls on similar Audi vehicles and this VIN was not included in either recall. However, it appears to be a similar concern and should be resolved by the Manufacturer.”
Owner complaint to NHTSAFiled Apr 16, 2024Power train, Electrical system, EngineODI 11583388

Service brakes

3 reports
“At high speeds (around 65 or more), when I apply the brakes I can sense some vibration in the brakes. I mentioned to the dealer that the brakes are not smooth as in my other cars. I was told, it is because Audi is a "performance car." Now I know that it is just poorly built.”
Owner complaint to NHTSAFiled Aug 16, 2023Service brakesODI 11538985
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 29, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.