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EnginePart report

2006 Audi A4 Engine Problems

Complaints
15about this part
Share
5%of 295 total for the year
Median mileage
90,438miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 15 complaints about the engine of the 2006 Audi A4, 5% of the 295 complaints for this model year. Where a mileage was given, the median is 90,438 miles. 1 a fire, according to the filers.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Audi issued a technical service bulletin that I found on your website. This bulletin was regarding the exact parts the dealer (Audi) identified as being affected on my car (high pressure fuel pump, cam follower, and corresponding intake camshaft cam lobe). This bulletin (not a recall, but distributed internally to dealerships) clearly states that this is a widespread issue that affected all VIN ranges of specified Audi models from 2005-2007 that included mine. Audi extended drivetrain coverage on these vehicles to 10yr/120k mi. …”

NHTSA complaint #11355075, filed 2020-09, 110,000 miles

“My 2006 Audi A4 just died on the road the day after I did the 95k services.. Couldn't start up the car after many attempts and finally when I could, it was very loud and shaky.. Got some smells from the front also but I couldn't figure out what was wrong. I sent it back to the dealer right away and going through some diagnosis, we need to replace the engine because the crankshaft inside the engine's got broken sleeves. …”

NHTSA complaint #10483680, filed 2012-11, 92,000 miles

“In october 2006, purchased a new 2006 Audi A4 from carousel Audi in golden valley, mn. The car was well maintained and has less than 62,000 miles today. In late summer of 2013, I began noticing that the car jerked heavily when putting it into reverse from a parked position. The car has an automatic transmission and I then began noticing the car not accelerating properly and laboring when nearing 50 MPH on the highway. The motor would rev up and make an unusual sound and it was too dangerous to drive on the highway. …”

NHTSA complaint #10550901, filed 2013-11, 61,000 miles

“I have the A4 w/ 3.1 liter v6. Almost immediately after purchase, transmission exhibited bumpy lurching start from stop. Audi diagnose said that's symptomatic of this transmission and engine combination. Nothing could be done to prevent. Within 1st year, the car would stall and completely shut down, necessitating a re-start. Sometimes upon start, and most notably (and the example cited above) when driving at slow speed. (I suspect the stall problems described relates to the lurching transmission problem). On this incident there was no check engine light. …”

NHTSA complaint #10763136, filed 2015-09, 12,000 miles

“Car hesitated under acceleration at highway speeds resulting in total loss of power. Car continued to have acceleration and idling problems. Issues due to cam follower wearing prematurely causing major damage to high pressure fuel pump, intake and exhaust cams, damage to engine requiring total engine replacement.”

NHTSA complaint #10472972, filed 2012-08, 76,269 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2023330%
2022233%
202119%
2019220%
2018511%
20172239%
2016764%
20151053%
20141341%
2013625%
20121368%
2011764%
20103758%
20094437%
2008137%
2007179%
2006155%
2005105%
200474%
200373%
200253%
200122%
199821%

Other parts of the 2006 Audi A4

Exterior lighting
159 complaints
Air bags
73 complaints
Electrical system
21 complaints
Transmission and drivetrain
14 complaints
Fuel system
10 complaints
Other or unknown
7 complaints
Vehicle speed control
7 complaints
Engine cooling
6 complaints
Brakes
5 complaints
Steering
5 complaints
Visibility (wipers, defrost, mirrors)
5 complaints
Electronic stability control
4 complaints

← All problems reported for the 2006 Audi A4

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