There are 5 owner-reported engine complaints for the 2006 Audi A3in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
AIR CONDITIONING UNIT WENT OUT. *TR
2006 AUDI A3 WITH 20T ENGINE. MALFUNCTION INDICATOR LAMP ILLUMINATED AND CAR DID NOT WANT TO ACCELERATE AND WENT INTO LIMP MODE. TOOK IT TO THE AUDI DEALER WHERE I PURCHASED THE VEHICLE NEW IN 2005 AND THEIR ANALYSIS INDICATED A BAD INTAKE CAMSHAFT, BAD HIGH PRESSURE FUEL PUMP ALONG WITH BAD CAM FOLLOWER. QUOTED WORK WAS $1000 LABOR AND $950 IN PARTS. *TR
1. NORMAL DRIVING. 2. THE CAMSHAFT FOLLOWER ON MY HIGH PRESSURE FUEL PUMP IN MY 2006 AUDI A3 WAS PUNCHED CLEAN THROUGH AND THE PLUNGER ON MY FUEL PUMP WAS EATING AWAY AT MY CAMSHAFT... I SUBSEQUENTLY RECEIVED NO CHECK ENGINE LIGHTS, BUT HAD FUEL CUTS AND BOOST CUTS IN MEDIUM TO HIGH RPMS. 3. I HAD TO BUY A NEW CAMSHAFT, CAMSHAFT FOLLOWER, AND HIGH PRESSURE FUEL PUMP. VW/AUDI REFUSED TO HELP ME BECAUSE I AM AT 60,000 MILES, EVEN THOUGH MY MANUAL SAYS THE PART SHOULD BE CHECK, AND MAYBE REPLACED STARTING AT 100,000 MILES... THEY SAID THAT MY AFTERMARKET INTAKE MIGHT HAVE CAUSED THE DAMAGE BY "OVER SPINNING THE ENGINE"... THIS IS IMPOSSIBLE, AS THE ENGINE HAS A REV LIMITER, AND I NEVER HAVE GONE OVER 4K RPM YET, PLUS MY "AFTERMARKET INTAKE" IS NOTHING MORE THAN THE STOCK INTAKE, BUT WRAPPED IN CARBON FIBER, WITH A K&N FILTER REPLACING THE FACTORY ONE. *TR
LOSS OF POWER AND DTC P2293, P0087 IN ECM CAUSED BY PREMATURE WEARING OF THE CAMSHAFT FOLLOWER THAT DRIVES THE HIGH PRESSURE FUEL PUMP. THE DTC ARE REFERENCED IN NHTSA ITEM 10025965, AND SERVICE BULLETIN NUMBER 15-08-05. THE CAMSHAFT WEARS THROUGH AND DAMAGES THE FUEL PUMP. OUTSIDE INVESTIGATION HAS DETERMINED THAT THIS PREMATURE WEAR IS CAUSED BY AN IMPROPERLY HARDENED CAMSHAFT. THIS IS A MANUFACTURING PROBLEM AFFECTING A LARGE NUMBER AUDI AND VW VEHICLES UTILIZING THE 2.0 ENGINE. *TR
ENGINE COOLANT LINE FLANGE FAILURE. CAUSES ENGINE COOLANT TO DRAIN FROM VEHICLE .THE DEALER INDICATES THAT THIS IS COMMON ON THE 2.0 ENGINES. PART UNAVAILABLE IN THE US (ON BACK ORDER). THE CAR WAS PARKED, LUCKILY. COULD HAVE BEEN A MAJOR EXPENSE IF ON THE HIGHWAY. DRAINED WITHIN SEVERAL HOURS WHILE PARKED. IF THIS IS AN ISSUE, WHY ISN'T AUDI REPLACING THIS WITH A METAL FLANGE INSTEAD OF A PLASTIC ONE? *NM
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026