Problems · NHTSA complaints

1999 Audi A4 problems

Owners filed 190 complaints about the 1999 Audi A4 with NHTSA between Jan 1999 and Jan 2016. The most-cited component is service brakes, hydraulic (81).

Complaints
190
Filed with NHTSA
Crashes
9
Reported by owners
Fires
2
Reported by owners
Injuries
5
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Service brakes, hydraulic81
  2. Engine and engine cooling28
  3. Vehicle speed control16
  4. Steering14
  5. Electrical system11
  6. Power train10
  7. Air bags8
  8. Suspension8
  9. Tires7
  10. Service brakes, air6
  11. Visibility5
  12. Structure4
  13. Fuel system, gasoline4
  14. Exterior lighting4

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 27, 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
199915
200030
200115
20028
200321
200420
200529
200616
20078
200811
20095
20104
20114
20123
20130
20140
20150
20161

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

Service brakes, hydraulic

81 reports2 crashes1 related recall
“MY AUDI, ALONG WITH THOUSANDS OF OTHERS HAVE HAD THEIR ABS CONTROL UNIT MALFUNCTION BECAUSE OF DESIGN. THIS MALFUNCTION CAUSES THE ABS TO NOT WORK ON THE AFFECTED VEHICLE. VOLKSWAGEN, THE COMPANY THAT PRODUCES AUDIS AND VWS ACTUALLY RECALLED THIS EXACT PART ON THEIR VW VEHICLES, BUT FOR SOME REASON REFUSES TO CORRECT THE PROBLEM FOR THEIR AUDI CUSTOMERS. THE COST TO REPLACE THIS CONTROL UNIT IS $1,400 - $1,700, AND AS SUCH I HAVE BEEN DRIVING MY VEHICLE WITHOUT ITS ABS FUNCTIONING. BELOW IS A DESCRIPTION OF THE RECALL FOR THIS EXACT PART, BUT ON THE VW JETTA: "2002 VOLKSWAGEN JETTA GLS NHTSA RECALL ID NUMBER: 02V031000 RECALL DATE: JAN 31, 2002 COMPONENT: SERVICE BRAKES, HYDRAULIC:ANTILOCK POTENTIAL UNITS AFFECTED: 55000 SUMMARY: ON SOME PASSENGER VEHICLES, SHORT CIRCUITS CAN OCCUR WITHIN THE ELECTRONIC CONTROL UNIT OF THE ANTI-LOCK BRAKING SYSTEM (ABS). CONSEQUENCE: THIS CAN RESULT IN A FIRE. REMEDY: DEALERS WILL REPLACE THE ABS CONTROL UNIT. OWNER NOTIFICATION BEGAN MARCH 8, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT VOLKSWAGEN AT…”
Owner complaint to NHTSAFiled Apr 26, 2012Service brakes, hydraulic, Equipment adaptive/mobilityODI 10456618

Engine and engine cooling

28 reports1 fire1 related recall
“THE CAR IS EXPERIENCING UNINTENDED ACCELERATION, USUALLY, BUT NOT ALWAYS, AFTER HEAVY ACCELERATION. OVER 10 OCCURRENCES. CANNOT REMEDY BY PULLING BACK THE ACCELERATOR. CAR MUST BE TURNED OFF AND THE ENGINE MUST RECORD 0 RPM TO REMEDY THE PROBLEM. *TR”
Owner complaint to NHTSAFiled Jan 28, 2012Engine and engine cooling, Power train, Electrical systemODI 10445699

Vehicle speed control

16 reports2 crashes
“JANUARY 17, 2007, 8 DEGREES - DRY ROAD CONDITIONS I ACCELERATED UP A STEEP HILL ON MY WAY TO WORK WHEN AT THE TOP OF THE HILL I TOOK MY FOOT OFF THE ACCELERATOR AND THE VEHICLE'S RPMS RACED TO 7,000. I POPPED THE CAR INTO NEUTRAL AND PUNCHED THE GAS PEDAL AND THE CAR REDUCED SPEED AND RPMS THIS IS VERY DANGEROUS. THIS IS MY SECOND COMPLAINT - IT HAPPENED LAST WINTER WITH WET ROAD CONDITIONS BUT VERY VERY COLD. I TOOK THE CAR TO THE DEALER LAST YEAR AND THEY CLAIM THERE IS NOTHING WRONG. I HAD THE ACCELERATOR CABLE REPLACED. THERE IS A RECALL ON THE AUDI A-6 AND THE DEALER CLAIMS MY CAR DOES NOT QUALIFY. ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH 2.8L, V6 5-VALVE ENGINES, AND AUTOMATIC TRANSMISSIONS, WHILE DRIVING DURING EXTREMELY LOW AMBIENT TEMPERATURES THE THROTTLE MAY FREEZE IN AN OPEN POSITION DUE TO ICE ACCUMULATING IN THE THROTTLE BODY. IF THIS OCCURS, THE VEHICLE MAY FAIL TO REDUCE SPEED WHEN THE DRIVER LIFTS HIS/HER FOOT FROM THE GAS PEDAL. THIS LOSS OF VEHICLE CONTROL COULD RESULT IN A CRASH WITHOUT WARNING. SOMETHING MUST BE DONE TO MAKE AUDI REALIZE THIS IS VERY DANGEROUS AND APPLIES TO THE A-4 NOT JUST THE A-6. *NM *NM”
Owner complaint to NHTSAFiled Feb 7, 2007Vehicle speed controlODI 10178918

Steering

14 reports1 crash2 related recalls
“TL*THE CONTACT OWNS A 1999 AUDI A4. WHILE DRIVING 5 MPH IN A PARKING LOT, THE VEHICLE BEGAN TO MAKE A SQUEAKING NOISE WHEN MAKING A RIGHT TURN. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR INSPECTION. THE FAILURE WAS DUE TO EXCESSIVE WEAR OF THE TIE ROD. THE TECHNICIAN DISCOVERED NHTSA CAMPAIGN ID NUMBER 99V248000 (STEERING;LINKAGES;ROD:RELAY;CONNECTING); HOWEVER, THE VIN WAS NOT INCLUDED ALTHOUGH THE FAILURES WERE IDENTICAL. THE FAILURE MILEAGE WAS 79,000 AND CURRENT MILEAGE WAS 85,000.”
Owner complaint to NHTSAFiled Dec 15, 2008SteeringODI 10251841

Electrical system

11 reports1 fire
“BOSCH ABS CONTROL UNIT HAS FAILED CAUSING A FLASHING ABS INDICATOR AND A SOLID BRAKE LIGHT. CAUSE IS ELECTRONIC. MANY DOCUMENTED CASES FOUND ON LINE. ABS WILL NOT ENGAGE. AUDI WILL NOT RECALL, BUT VW HAS RECALLED FOR THE SAME PROBLEM. *TR”
Owner complaint to NHTSAFiled Apr 8, 2011Electrical systemODI 10395229

Power train

10 reports
“TL* THE CONTACT OWNS A 1999 AUDI A4. WHILE DRIVING AT 30 MPH, THE VEHICLE BEGAN INDEPENDENTLY SHIFTING INTO MANUAL MODE FROM AUTOMATIC. THE CONTACT WAS ABLE TO ADJUST THE SHIFTER TO NORMAL BUT THE FAILURE PERSISTED. THE DEALER ADVISED THE SHIFTER BLIND AND THE PRINTED CIRCUIT BOARD WOULD NEED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE AND CURRENT MILEAGES WERE 126,963.”
Owner complaint to NHTSAFiled Jun 22, 2010Power train, Electrical systemODI 10339487
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 27, 2026

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