There are 3 owner-reported fuel system complaints for the 2006 Audi A4in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Gas gauge displaying incorrect level of fuel. Oil level notification improperly displaying level of oil.
TOOK THE AUDI A4 QUATTRO TO THE AUDI CONNECTION OF CINCINNATI DEALERSHIP FOR A CHECK ENGINE LIGHT (CEL) ON P CODES P2293 & P0089 WHICH INDICATES A POSSIBLE CAM FOLLOWER, CAM SHAFT, AND/OR HIGH PRESSURE FUEL PUMP (HPFP) ISSUES BACK ON THURSDAY MORNING APRIL 10TH, 2014. LATER, I SPOKE WITH LEE AT THE SERVICE DESK WHO STATED THAT THE CAM SHAFT WAS WORN AND WOULD BE A COVERED ITEM ON THIS INTERNAL AUDI CAMPAIGN; HOWEVER, HE WOULD NOT BE ABLE TO GET TO IT UNTIL THE NEXT BUSINESS DAY SINCE IT WOULD TAKE A FULL DAY TO REPAIR PUSHING IT INTO FRIDAY.I RECEIVED A CALL FRIDAY APRIL 11TH AT APPROXIMATELY 11:30 A.M. AND IT WAS LEE STATING THAT THE CAM SHAFT WOULD NOT BE REPLACED DUE TO AN OIL PRESSURE ISSUE THAT DAMAGED BOTH CAM SHAFTS AND ENGINE. HE LATER STATED THAT THE ENGINE WOULD HAVE TO BE REPLACED THAT COULD COST UPWARDS OF $8,000.00. I LATER SUSPECTED OIL SLUDGE ISSUES THAT WERE ALSO ON A RECALL. YES, THE AUDI CONNECTION DID LATER RELENT, AFTER STATING EARLIER THAT THEY WOULD NOT PERFORM THE WORK, OFFERING TO PERFORM THE REPAIRS AT A LATER TIMELINE; A TIMELINE THAT I COULD NOT AFFORD TO BE WITHOUT A VEHICLE AND PAYING ON A RENTAL. THIS PARTICULAR VEHICLE; AUDI A4 T2.0 QUATTRO 2006 YEAR, MAKE, AND MODEL HAS A HISTORY OF OIL SLUDGE ISSUES AND AUDIUSA HAS HAD CLASS ACTION LAWSUITS ON SUCH EVENTS- ALL ANYONE HAS TO DO IS TO DO THEIR RESEARCH AND LOCATE ISSUES CONCERNING THE VERY ISSUES I TOO HAVE EXPERIENCED. BELOW IS ONE SIMILAR TO MINE... "A SETTLEMENT NOTICE FOR THE VW AND AUDI OIL SLUDGE CLASS ACTION LAWSUIT WILL BE MAILED AND PUBLISHED IN USA TODAY ON OR BEFORE DECEMBER 29, 2010. THE FINAL APPROVAL HEARING IS SCHEDULED FOR MARCH 11, 2011." *TR
TL*THE CONTACT OWNS A 2006 AUDI A4. WHILE DRIVING 55 MPH, THE CONTACT DROVE OVER A PIECE OF WOOD THAT PUNCTURED HIS PLASTIC GAS TANK. THE MECHANIC STATED THAT THE GAS TANK NEEDED REPLACING. THE POWERTRAIN WAS UNKNOWN. THE CURRENT AND FAILURE MILEAGES WERE 16,000.
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 Apr 26, 2026