Problems · NHTSA complaints

1998 Audi A6 problems

Owners filed 130 complaints about the 1998 Audi A6 with NHTSA between Aug 1998 and Aug 2021. The most-cited component is fuel system, gasoline (29).

Complaints
130
Filed with NHTSA
Crashes
6
Reported by owners
Fires
7
Reported by owners
Injuries
4
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Fuel system, gasoline29
  2. Vehicle speed control18
  3. Service brakes, hydraulic17
  4. Steering13
  5. Suspension11
  6. Structure9
  7. Electrical system8
  8. Engine and engine cooling6
  9. Fuel system, other6
  10. Visibility5
  11. Air bags4
  12. Exterior lighting3
  13. Tires3
  14. Seat belts2

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 28, 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
19984
199922
200027
20015
20024
200316
200423
200512
20067
20072
20080
20093
20101
20110
20121
20130
20141
20150
20160
20170
20180
20190
20201
20211

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

Fuel system, gasoline

29 reports3 related recalls
“I AM EXPERIENCING AN ISSUE WITH MY VEHICLE THAT WAS RECALLED BY THE FACTORY AUDI AG BUT MY VEHICLE WAS NOT LISTED AS ONE OF THE RECALLED VEHICLE. I AM AFRAID OF GETTING STRANDED DUE TO AN IMPROPER FUEL READING. PLEASE ADDRESS THIS ACCORDINGLY, THANK YOU. *TR”
Owner complaint to NHTSAFiled Feb 25, 2010Fuel system, gasolineODI 10314095

Vehicle speed control

18 reports1 crash1 related recall
“TL*- THE CONTACT OWNS A 1998 AUDI A6. THERE RECALL 04V495000 IN OCTOBER 2004 CONCERNING VEHICLE SPEED CONTROL. ON 3/08/07 THE CONTACT WAS DRIVING AT 65 MPH AND WITHOUT WARNING THE VEHICLE ACCELERATED TO 90 MPH. THE CONTACT WAS UNABLE TO REDUCE THE SPEED, ENGAGE THE BRAKES OR PLACE THE VEHICLE IN NEUTRAL. THE CONTACT HAD TO FORCE THE VEHICLE IN PARK WITH THE TRANSMISSION GRINDING AND TURNED THE ENGINE OFF. THE VEHICLE WAS TOWED TO THE DEALER, AND THEY STATED THAT THE VEHICLE HAS BEEN SERVICED FOR EVERY RECALL. ROAD CONDITIONS WERE NOT A FACTOR. AUDI AND THE DEALER STATED THAT THE RECALL REPAIR WAS PERFORMED ON THE VEHICLE. THE CONTACT DIDN'T AGREE THAT THE REPAIRS WERE PERFORMED DUE TO THE FAILURE SHE EXPERIENCED. AUDI ASSURED THE CONTACT THAT PRIOR TO PURCHASING THE VEHICLE ALL RELATED RECALL REPAIRS WERE PERFORMED. THE CURRENT AND FAILURE MILEAGE WERE BOTH 100,000. *AK”
Owner complaint to NHTSAFiled Mar 8, 2007Vehicle speed controlODI 10184569

Service brakes, hydraulic

17 reports1 crash1 related recall
“DEAR DOT, I'VE A 1998 AUDI A6 QUATTRO. MY ABS SYSTEM SHOWS WARNING YELLOW ABS LIGHT AND RED FLASHING BRAKE LIGHT AT ALL TIME. I'VE TAKEN MY TWO SHOPS AND THEY BOTH INDICATED THAT THE ABS UNIT IS DEFECTIVE AND NEEDS REPLACEMENT. THEY TESTED ALL 4 WHEEL SENSORS ON THE CAR AND ALSO MAPPED OUT THE ELECTRICAL SYSTEM. THE CONCLUSION WAS A DEFECTIVE ABS UNIT. I'VE DONE SOME RESEARCH AND OTHER AUDI OWNER FROM 1998 - 2001 ALSO HAVE THE SAME ISSUES. IF THIS SYSTEM IS KNOWN TO BE DEFECTIVE, IT SHOULD BE RECALLED IN ALL FAIRNESS. I AM PRETTY HAPPY WITH THIS CAR, BUT THE ABS IS AN UNCOMFORTABLE EXPERIENCE. IT COST ABOUT $2000 TO REPLACE THE ABS UNIT AND AUDI DOES NOT WANT TO ADMIT THE PROBLEM. REFERENCES: HTTP://AUDI-VW-ABS-RECALL.BLOGSPOT.COM HTTP://WWW.ALLWORLDAUTO.COM/COMMENTS/AUDI_A4_AVANT_COMMENTS_AND_COMPLAINTS_65-34245-1.HTML”
Owner complaint to NHTSAFiled Nov 11, 2009Service brakes, hydraulicODI 10291873

Steering

13 reports1 fire1 related recall
“TIE RODS IN THE STEERING SYSTEMS ARE DAMAGED. AUDI CLAIMS THEY HAD A RECALL ON THESE RODS AND THAT THE PREVIOUS OWNER OF THE CAR HAD THE SERVICE COMPLETED BACK IN 2000. YET, I STILL HAVE PROBLEMS NOW IN 2006. I WONDER IF THE FIX AUDI IMPLEMENTED IS REALLY EFFECTIVE OR NOT. *JB”
Owner complaint to NHTSAFiled Jun 9, 2006SteeringODI 10159422

Suspension

11 reports
“TL* THE CONTACT OWNS A 1998 AUDI A6. WHILE TRAVELING 25 MPH, THE CONTACT NOTICED THAT THE FRONT END OF THE VEHICLE HAD SUDDENLY DROPPED TO THE GROUND. THE VEHICLE WAS TAKEN TO THE DEALER, WHERE THE FRONT LOWER CONTROL ARM WAS REPLACED TWICE. THE FAILURE CONTINUED. THE FAILURE AND CURRENT MILEAGES WERE 150,000. UPDATED 5/7/12 *CN THE CONSUMER STATED ONE MONTH PRIOR, WHILE TURNING OFF A ROAD, THE VEHICLE DROPPED TO 25 MPH, THERE WAS LOSS OF BRAKES AND THE VEHICLE WAS HARD TO CONTROL. UPDATED 05/30/10”
Owner complaint to NHTSAFiled Mar 16, 2012SuspensionODI 10451930

Structure

9 reports1 crash
“CONSUMER NOTICED WATER COMING FROM UNDERNEATH THE PASSENGER SIDE SEAT FROM THE HEATING DOCKS. THIS OCCURRED AFTER VEHICLE WAS PARKED IN THE DRIVEWAY IN A RAIN STORM OVER NIGHT. DEALERSHIP INDICATED THAT THIS OCCURRED BECAUSE THE DRAIN LOCATED UNDER THE BATTERY COMPARTMENT, UNDER THE HOOD, GOT BLOCKED UP AND WATER BACKED UP INTO THE CABIN OF THE VEHICLE THROUGH THE HEATING DOCKS. THIS RESULTED IN THE TRANSMISSION BEING SUBMERGED IN WATER. *AK”
Owner complaint to NHTSAFiled Sep 9, 2004Power train, StructureODI 10091702
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026

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