Skip to content
EnginePart report

2006 Audi A6 Engine Problems

Complaints
4about this part
Share
6%of 67 total for the year
Median mileage
170,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine of the 2006 Audi A6, 6% of the 67 complaints for this model year. Where a mileage was given, the median is 170,000 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.

“Engine oil leaks this is a normal problem that should not be accepted by the consumer and the adaptive headlights cord broke off. Will not turn with vehicle”

NHTSA complaint #11110141, filed 2018-07, 138,000 miles

“The contact owns 2006 Audi A6. The contact stated that she was unable to start the vehicle intermittently without a jump start. The contact stated that the vehicle remained on when the key was removed from the ignition switch. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 180,000.”

NHTSA complaint #10672523, filed 2015-01, 180,000 miles

“2006 Audi A6. Consumer writes in regards to illuminated check engine light. The consumer stated the vehicle was leaking oil. The consumer was in contact with the previous owner, who stated they bought and sold the vehicle back to the same dealer for the same issue. Also the consumer purchased the vehicle with 119,00 miles, but the previous owner stated the actual mileage was over 200,000.”

NHTSA complaint #11396292, filed 2021-02

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2026114%
2021317%
202014%
20193228%
2018764%
2017420%
20161733%
2015627%
2014512%
20131529%
20121322%
2011210%
201016%
200823%
200724%
200646%
200544%
200413%
200335%
200256%
200122%

Other parts of the 2006 Audi A6

Air bags
40 complaints
Electrical system
13 complaints
Brakes
4 complaints
Steering
4 complaints
Exterior lighting
3 complaints
Tires
3 complaints
Transmission and drivetrain
3 complaints
Engine cooling
2 complaints
Other or unknown
2 complaints
Seat belts
2 complaints
Fuel system
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2006 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