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
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
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.
Electrical System complaints
11 reportsBOSCH 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
TL*THE CONTACT OWNS A 1999 AUDI A4. WHILE DRIVING 20 MPH THE CONTACT NOTICED THAT SMOKE HAD BEGUN TO COME FROM UNDERNEATH THE DRIVERS SIDE SEAT. NO FLAMES WERE VISIBLE AND THE FIRE DEPARTMENT WAS NOT CALLED. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE ENTIRE WIRING SYSTEM NEEDED TO BE REPLACED. THE FAILURE WAS NOT D…
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TL*THE CONTACT OWNS A 1999 AUDI A4. WHILE DRIVING 20 MPH THE CONTACT NOTICED THAT SMOKE HAD BEGUN TO COME FROM UNDERNEATH THE DRIVERS SIDE SEAT. NO FLAMES WERE VISIBLE AND THE FIRE DEPARTMENT WAS NOT CALLED. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE ENTIRE WIRING SYSTEM NEEDED TO BE REPLACED. THE FAILURE WAS NOT DIAGNOSED. THERE WERE NO PRIOR WARNINGS. THE CURRENT AND FAILURE MILEAGES WERE 104000.
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…
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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.
MY BRAKE LIGHT STARTED BEEPING AND FLASHING ONE DAY WHILE DRIVING. THE BEEPING AND FLASHING CONTINUED THROUGH THE NEXT COUPLE OF WEEKS. I TOOK MY CAR TO MY MECHANIC AND HE SAID I WOULD HAVE TO TAKE IT TO THE DEALER BECAUSE AUDI WON'T RELEASE THEIR SERVICE CODES. I CALLED THE DEALER AND ASKED WHAT WAS GOING ON. THE MECHANIC A…
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MY BRAKE LIGHT STARTED BEEPING AND FLASHING ONE DAY WHILE DRIVING. THE BEEPING AND FLASHING CONTINUED THROUGH THE NEXT COUPLE OF WEEKS. I TOOK MY CAR TO MY MECHANIC AND HE SAID I WOULD HAVE TO TAKE IT TO THE DEALER BECAUSE AUDI WON'T RELEASE THEIR SERVICE CODES. I CALLED THE DEALER AND ASKED WHAT WAS GOING ON. THE MECHANIC ASKED ME "WERE YOU DRIVING YOUR CAR IN THE RAIN?" I HAD QUITE A FEW SARCASTIC RESPONSES TO THE STUPID QUESTION BUT I JUST SAID, YEAH. I ASSUME A CAR IS ENGINEERED TO BE DRIVEN IN ALL CLIMATES INCLUDING, RAIN. A PRODUCT SHOULD BE DESIGNED TO PERFORM ITS INTENDED USE. NOT THE A4. WHO NEEDS AN ALL WHEEL DRIVE CAR IF THEY DON'T PLAN ON DRIVING IT THROUGH RAIN AND SNOW? THE MECHANIC TOLD ME THAT MY ABS CONTROL MODULE NEEDS TO BE REPLACED AND IT WOULD COST ME $1500. HE TOLD ME THAT MY ABS AND ALL WHEEL DRIVE WOULD NOT WORK PROPERLY UNTIL I FIX IT. I LIVE IN COLORADO AND I FREQUENTLY DRIVE THROUGH THE SNOW. I DRIVE THROUGH THE ROCKY MOUNTAINS IN ICY AND DANGEROUS CONDITIONS. LUCKILY, IT WAS SUMMER TIME WHEN MY MODULE WENT OUT. I TAKE MY LITTLE SISTERS, LITTLE BROTHERS, AND NEPHEWS SNOWBOARDING. I COULD HAVE BEEN SERIOUSLY INJURED OR KILLED OR I COULD HAVE SERIOUSLY INJURED OR KILLED SOMEONE ELSE BECAUSE I WAS DRIVING A VEHICLE THAT I THOUGHT HAD ABS, BUT DIDN'T. THERE IS A SLIM MARGIN FOR ERROR WHEN YOU ARE DRIVING ON SNOWY CURVES THROUGH THE MOUNTAINS. I COULD BE AT THE BOTTOM OF THE CLIFF BY THE TIME I REALIZE MY ABS WASN'T WORKING. OR I COULD SLIDE OVER A GROUP OF PEDESTRIANS. EVEN IF AUDI DOESN'T WANT TO PAY FOR THE REPAIRS, THEY SHOULD AT LEAST NOTIFY THEIR OWNERS THAT THIS IS A VERY COMMON PROBLEM THAT DRIVERS SHOULD BE AWARE OF. I WENT ONLINE AND I WAS NOT SURPRISED TO SEE THAT THOUSANDS OF OTHER PEOPLE HAD THE SAME PROBLEM. AUDI DID ABSOLUTELY NOTHING EXCEPT OFFER TO REPAIR THE BROKEN MODULE FOR FULL PRICE. *TR
I OWN A 1999 AUDI A4 AND THE LCD IN THE GAUGE CLUSTER HAS FAULTED AND NO LONGER WORKS. IT PROVIDES IMPORTANT INFORMATION TO THE DRIVER AND WORKS ABOUT 80% WHEN ITS EXTREMELY COLD. ONCE THE CAR WARMS UP ALL THE INFORMATION IS NOT ABLE TO BE SEEN. *TR
TL* - THE CONTACT RECEIVED RECALL NUMBER 06E060000 TO REPLACE WIRING ON HER 1999 AUDI A4. THE VEHICLE HAS AN ODOMETER READING OD APPROXIMATELY 78,000 MILES. THE CONTACT STATED SHE TOOK THE VEHICLE TO AN AUDI DEALER. THE DEALER REFUSED TO DO THE RECALL WORK STATING THAT THE VEHICLE DID NOT HAVE FACTORY WIRING. THE CONTACT STA…
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TL* - THE CONTACT RECEIVED RECALL NUMBER 06E060000 TO REPLACE WIRING ON HER 1999 AUDI A4. THE VEHICLE HAS AN ODOMETER READING OD APPROXIMATELY 78,000 MILES. THE CONTACT STATED SHE TOOK THE VEHICLE TO AN AUDI DEALER. THE DEALER REFUSED TO DO THE RECALL WORK STATING THAT THE VEHICLE DID NOT HAVE FACTORY WIRING. THE CONTACT STATED SHE PREVIOUSLY ADDED AN AUTOMATIC STARTER TO THE VEHICLE. THE CONTACT STATED THE DEALER WOULD NOT DISCLOSED WHICH WIRE WAS NOT FACTORY WIRING.
THIS IS THE 2ND COIL PACK FAILURE I HAVE HAD ON MY 1999 AUDI A4 1.8T. IT WAS FIRST REPLACED BY SOUTHBAY AUDI IN CA IN JUNE OF 2002 AND THEN NOW OCTOBER ON 2004. AFTER READING THOUSANDS OF COMPLAINTS MADE BY AUDI AND VW OWNERS ON WWW.AUDIWORLD.COM IT IS APPARENT TO ME THAT THIS IS DEFINITELY A SERIOUS MANUFACTURER DEFECT. MY …
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THIS IS THE 2ND COIL PACK FAILURE I HAVE HAD ON MY 1999 AUDI A4 1.8T. IT WAS FIRST REPLACED BY SOUTHBAY AUDI IN CA IN JUNE OF 2002 AND THEN NOW OCTOBER ON 2004. AFTER READING THOUSANDS OF COMPLAINTS MADE BY AUDI AND VW OWNERS ON WWW.AUDIWORLD.COM IT IS APPARENT TO ME THAT THIS IS DEFINITELY A SERIOUS MANUFACTURER DEFECT. MY CAR SUDDENLY LOST POWER ON THE HWY WHILE TRAVELING ON THE HWY 405 IN CA...IF IT HAD NOT BEEN FOR THE ATTENTIVE DRIVER BEHIND ME...THE CARS LOSS OF POWER DUE TO LOSS OF CYLINDER ONE IN MY 4 CYLDR CAR WOULD HAVE BEEN CATASTROPHIC. I TOOK MY CAR TO MY TRUSTED MECHANIC AND FOUND THAT THE COIL PACK WAS BAD DUE TO A MISFIRE IN CYLDR 1. I NOW HAVE TO SPEND OUT OF POCKET TO REPAIR THIS PROBLEM THAT IN MY OPINION WAS AN EXISTING PROBLEM FROM THE DAY THE CAR CAME OUT OF THE PRODUCTION PLANT IN GERMANY. KINDLY ADVISE OF MY OPTIONS TO RECOUP MY EXPENSES. *JB
WE OWN AN AUDI A4 THAT WE HAVE HAD TOO MANY REPAIRS. THE CAR HAS NEEDED A TURBO AT 55,000 MILES, OIL PUMP AT 63,000 MILES, IGNITION COMPUTER AT 68,000 MILES AND RACK AND PINION STEERING AT 73,000 MILES. WE ARE AWARE THAT THE CAR IS AT HIGH MILEAGE, BUT THIS CAR IS SUPPOSE TO GET 200,000 MILES OUT OF IT. THE CAR WAS SERVICED AT D…
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WE OWN AN AUDI A4 THAT WE HAVE HAD TOO MANY REPAIRS. THE CAR HAS NEEDED A TURBO AT 55,000 MILES, OIL PUMP AT 63,000 MILES, IGNITION COMPUTER AT 68,000 MILES AND RACK AND PINION STEERING AT 73,000 MILES. WE ARE AWARE THAT THE CAR IS AT HIGH MILEAGE, BUT THIS CAR IS SUPPOSE TO GET 200,000 MILES OUT OF IT. THE CAR WAS SERVICED AT DEALERS THE ENTIRE TIME. WE THINK THAT PERHAPS THERE ARE DEFECTS IN THE CAR THAT OTHER DRIVERS ARE EXPERIENCING.
THREE FAILURES OF HEADLIGHTS. AFTER 6 MONTHS, DRIVER SIDE HEADLIGHT BURNT OUT. 6 MONTHS LATER PASSENGER SIDE BURNT OUT. NOW THE DRIVER SIDE HAS BURNT OUT AGAIN, JUST 18 MONTHS AFTER PURCHASE. HAVE ALSO HAD A FUSE BLOW IN A CELL PHONE CHARGER PLUGGED IN THE CIGARETTE LIGHTER.*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
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