IllustrationTL* THE CONTACT OWNS A 1999 AUDI A4. THE CONTACT STATED THAT WHILE DRIVING, THE AIR BAG WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO A DEALER BUT THE CONTACT WAS UNAWARE OF THE DIAGNOSIS. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 308,000.
1999 Audi A4
Owner reports · Recalls · Investigations
More warning signs than most A4 years
Owner complaints for the 1999 Audi A4 are substantially higher than the model-year median of 76.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all A4 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
20–25K
625–50K
4050–75K
2875–100K
19100–150K
5150K+
100 reports with mileage · 90 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes, Hydraulic. Review the 81 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 28 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Vehicle Speed Control. Review the 16 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
9 crash reports2 fire reports4 injury reports
Air Bags complaints
8 reportsTHE DRIVER SEAT CURTAIN SIDE AIRBAG WENT OFF WHILE DRIVING ON THE HIGHWAY ON SATURDAY OF THANKSGIVING WEEKEND 11/25/06. NO ACCIDENT OCCURRED. *NM
ON 9/28/04 I WAS INVOLVED IN AN AUTO ACCIDENT WHERE ANOTHER DRIVER IN A SUBURBAN FAILED TO YIELD THE RIGHT AWAY, TURNED IN FRONT OF ME, I HIT HER WITH MY 1998 AUDI AVANT WAGON. THE COMBINED SPEEDS OF THE TWO VEHICLES COMBINED WITH WHERE I HIT THE SUBURBAN, FLIPPED THE SUBURBAN. THIS DRIVER WAS TRAPPED IN HER VEHICLE. THE FIRE D…
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ON 9/28/04 I WAS INVOLVED IN AN AUTO ACCIDENT WHERE ANOTHER DRIVER IN A SUBURBAN FAILED TO YIELD THE RIGHT AWAY, TURNED IN FRONT OF ME, I HIT HER WITH MY 1998 AUDI AVANT WAGON. THE COMBINED SPEEDS OF THE TWO VEHICLES COMBINED WITH WHERE I HIT THE SUBURBAN, FLIPPED THE SUBURBAN. THIS DRIVER WAS TRAPPED IN HER VEHICLE. THE FIRE DEPARTMENT WAS INVOLVED IN LIFTING HER VEHICLE OFF OF HER ARM. SHE SUBSEQUENTLY RECEIVED HUNDREDS OF STITCHES IN HER ARM. IN CONTRAST, I SHATTERED MY RIGHT WRIST SCAPHOID BONE. THIS REQUIRED A RATHER MAJOR SURGERY INVOLVING BONE GRAPH AND TITANIUM SCREW IN 11/04. THE BONES NEVER FUSED, AND I AM LOOKING AT ADDITIONAL SURGERY. PLEASE NOTE THAT MY AIR BAGS NEVER DEPLOYED IN THIS ACCIDENT, AND MUCH OF THE FORCE OF THE IMPACT I SUSTAINED WAS IN MY RIGHT WRIST/ARM. I AM ALSO RIGHT HAND DOMINANT. *JB
CONSUMER'S VEHICLE REAR ENDED ANOTHER VEHICLE WHILE DRIVING AT 25 MPH. UPON IMPACT,FRONTAL AIR BAG FAILED TO DEPLOY. THIS RESULTED IN THE DRIVER'S HEAD IMPACTING THE STEERING WHEEL. THE VEHICLE HAD SEVERE FRONT END DAMAGE. *AK
WHEN THE CAR WAS ABOUT A YEAR OLD, THE ENTIRE AIRBAG SYSTEM HAD TO BE REPLACED, THE REPAIR FACILITY NOTED TO ME THAT I WAS LUCKY TO BRING IT IN WHEN I DID, AS IT WAS AT RISK FOR SPONTANEOUS DEPLOYMENT. ADDITIONAL PROBLEMS INCLUDED AN OIL PUMP FAILURE ($750) AT ABOUT THE THREE YEAR MARK; AND OCCASIONAL SUDDEN LURCHING/RPM REVVING…
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WHEN THE CAR WAS ABOUT A YEAR OLD, THE ENTIRE AIRBAG SYSTEM HAD TO BE REPLACED, THE REPAIR FACILITY NOTED TO ME THAT I WAS LUCKY TO BRING IT IN WHEN I DID, AS IT WAS AT RISK FOR SPONTANEOUS DEPLOYMENT. ADDITIONAL PROBLEMS INCLUDED AN OIL PUMP FAILURE ($750) AT ABOUT THE THREE YEAR MARK; AND OCCASIONAL SUDDEN LURCHING/RPM REVVING OR SUDDEN ONSET OF A 'LAG' IN POWER, WHICH THE DEALER NOTED WHEN I BROUGHT IT IN BUT COULD DO NOTHING ABOUT. I HAVE ALSO HAD PROBLEMS WITH THE FUEL INDICATOR GAUGE BEING GROSSLY INACCURATE - INDICATING I HAVE USED ONLY A QUARTER TANK OF FUEL TO DRIVE 350 MILES. HOWEVER, THE MOST BOTHERSOME ONGOING PROBLEM IS FOUR OR FIVE TRIPS TO THE DEALER TO REPAIR A NON-FUNCTIONING CRUISE CONTROL SYSTEM. EACH TIME THEY HAVE 'REPLACED THE VACUUM HOSES' BUT THIS 'REPAIR' WILL BEGIN TO FAIL AGAIN LATER THAT SAME DAY. THE SYSTEM WILL EITHER FAIL TO ENGAGE ALTOGETHER, OR IT WILL BE ENGAGED DURING HIGHWAY DRIVING, THEN WITHIN A FEW MINUTES, THE SPEED WILL CONTINUALLY DECREASE UNTIL I HAVE TO MANUALLY DISENGAGE THE SYSTEM AND TURN IT OFF. I REPORTED THIS TO AUDI OF AMERICA'S CORPORATE CUSTOMER SERVICE (VERY FRIENDLY AND HELPFUL) WHO HELPED ME ARRANGE ANOTHER SERVICE VISIT, BUT THE PROBLEM HAS NEVER BEEN RESOLVED. CRUISE CONTROL HAS NEVER WORKED AND I'M GIVING UP ON IT EVER WORKING. I JUST HAVE TO PRETEND THAT I DON'T HAVE IT, WHICH IS VERY ANNOYING DURING HIGHWAY TRAVEL. *NLM
THE CONSUMER BELIEVES THAT THE VEHICLE HAS A DEFECTIVE OR MALFUNCTIONING AIR BAG SYSTEM, THE AIR BAG SYSTEM HAS BEEN REPLACED ONCE UNDER WARRANTY, NOW THE DEALER REFUSES TO REPAIR IT AGAIN SINCE THE VEHICLE HAS 68000 MILES CITING THAT ALL REPAIRS HAVE A 12000 MILE WARRANTY. NLM
NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK
DEFECTIVE SUN ROOF WOULD OPEN UNEXPECTEDLY AND NOT CLOSE. DLR REPLACED SUN ROOF. ALSO, SPEEDOMETER MALFUNCTIONED AND WAS NOT READNG THE SPEED ACCURATELY. DEALER REPLACE SPEEDOMETER SENSOR AND GEAR. FINALLY, AIRBAG LIGHT CAME ON, INDICATING A PROBLEM WITH AIR BAG. DEALER REPLACE DTHE AIRBAG SENSOR. PLEASE PROVIDE FURTHER IN…
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DEFECTIVE SUN ROOF WOULD OPEN UNEXPECTEDLY AND NOT CLOSE. DLR REPLACED SUN ROOF. ALSO, SPEEDOMETER MALFUNCTIONED AND WAS NOT READNG THE SPEED ACCURATELY. DEALER REPLACE SPEEDOMETER SENSOR AND GEAR. FINALLY, AIRBAG LIGHT CAME ON, INDICATING A PROBLEM WITH AIR BAG. DEALER REPLACE DTHE AIRBAG SENSOR. PLEASE PROVIDE FURTHER INFORMATION. *AK
Official recalls
420V056000 · Air Bags:frontal:driver Side:inflator Module
Jan 31, 2020
Volkswagen Group of America, Inc. (VW) is recalling certain 2000-2001 TT Roadster, 2000 TT Coupe, 1999 Audi A8, 1998-2000 Audi A6, and 1999-2000 Audi A4 vehicles equipped with Non-Azide Driver air bag Inflators (NADI) that do not contain phase stabilized ammonium nitrate (PSAN) propellant. Due to a manufacturing issue, the NADI inflators may absorb moisture, possibly causing the air bag to deploy improperly in the event of a crash.
Consequence & remedy
Consequence: In the event of a crash necessitating air bag deployment, the air bag may not properly protect the occupant, increasing the risk of serious injury or death.
Remedy: Dealers will replace the driver frontal air bag inflator with an alternative inflator when the parts become available, free of charge. Owner notifications were mailed September 21, 2021. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69BT.
00V414000 · Steering:linkages:rod:relay:connecting
Dec 6, 2000
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE TIE RODS OF THE STEERING ASSEMBLY ARE PROTECTED ON EACH SIDE BY A SEAL TO PREVENT MOISTURE AND DUST PARTICLES FROM ENTERING THE SWIVEL BEARING MECHANISM. IT IS POSSIBLE THAT SOME TIE ROD SEALS MAY NOT SEAL PROPERLY.
Consequence & remedy
Consequence: IF MOISTURE AND/OR DUST PARTICLES ENTER THE SWIVEL BEARING MECHANISM, THE SWIVEL BEARING COULD WEAR OVER TIME DIMINISHING THE STEERING CONTROL OF THE VEHICLE.
Remedy: DEALERS WILL REPLACE THE TIE RODS.
99V248000 · Steering:linkages:rod:relay:connecting
Sep 13, 1999
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE TIE RODS OF THE STEERING ASSEMBLY ARE PROTECTED ON EACH SIDE BY A SEAL TO PREVENT MOISTURE AND DUST PARTICLES FROM ENTERING THE SWIVEL BEARING MECHANISM. IT IS POSSIBLE THAT SOME TIE ROD SEALS MAY NOT SEAL PROPERLY.
Consequence & remedy
Consequence: IF MOISTURE AND/OR DUST PARTICLES ENTER THE SWIVEL BEARING MECHANISM, THE SWIVEL BEARING COULD WEAR OVER TIME DIMINISHING THE STEERING CONTROL OF THE VEHICLE.
Remedy: DEALERS WILL REPLACE THE TIE RODS.
99V131001 · Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings
May 21, 1999
VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH AUTOMATIC TRANSMISSIONS. A CONTROL VALVE IN THE VACUUM HOSE CONNECTING THE BRAKE BOOSTER TO THE INTAKE MANIFOLD MAY NOT OPEN OR CLOSE FULLY AT TEMPERATURES BELOW -4 F UNDER CERTAIN DRIVING CONDITIONS.
Consequence & remedy
Consequence: THIS CONDITION COULD CAUSE INSUFFICIENT VACUUM TO BE PROVIDED TO THE BRAKE BOOSTER.
Remedy: DEALERS WILL INSTALL A VACUUM BY-PASS SYSTEM INTO VEHICLES OPERATED IN THESE STATES WHICH IS DESIGNED TO PROVIDE SUFFICIENT VACUUM FOR FULL BRAKE ASSIST UNDER ALL WEATHER CONDITIONS.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
5EA04017 · STUCK-OPEN Throttle
Opened Jun 30, 2004 · Closed Feb 10, 2005
Status: closed (inferred from source dates) · Fuel System, Gasoline:fuel Injection System
VWOA HAS RECALLED APPROXIMATELY 28,300 MY 1998-99 A6 VEHICLES IN COLD WEATHER STATES THAT EXPERIENCED THE HIGHEST RATE OF THROTTLE ICING INCIDENTS IN THE SUBJECT VEHICLES (04V-495).THE FAILURE RATE IN THE A4 AND PASSAT VEHICLES IS MUCH LOWER THAN IN THE RECALLED VEHICLES.ODI WILL CONTINUE TO MONITOR THE EXPERIENCE IN THE A4 AND PASSAT VEHICLES.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS FOR THE AUDI A4 OR VW PASSAT VEHICLES.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY A CHANGE IN CIRCUMSTANCES. FOR FURTHER DETAILS SEE THE ATTACHED CLOSING REPORT.
PE02008 · Brake And Clutch Pedal Bracket
Opened Jan 23, 2002 · Closed Jul 12, 2002
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
No summary supplied.
EA00021 · Degraded Braking In Wet Weather
Opened Aug 11, 2000 · Closed Mar 29, 2002
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
There is no summary currently available
PE00016 · Degraded Braking Wet Weather Condition
Opened Apr 4, 2000 · Closed Aug 11, 2000
Status: closed (inferred from source dates) · Electrical System
There is no summary currently available
RQ99008 · Power Brake Booster Vacuum BY-PASS
Opened Jun 1, 1999 · Closed Nov 14, 2000
Status: closed (inferred from source dates) · Service Brakes, Hydraulic
There is no summary currently available