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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.

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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.

9 crash reports2 fire reports4 injury reports

Visibility complaints

5 reports
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Mileage unknown · Mar 2, 2006
Visibility

THIS IS NOT ABOUT A PARTICULAR INCIDENT BUT RATHER SOMETHING THAT HAS BEEN GETTING PROGRESSIVELY WORSE. THE EXTERIOR MIRRORS HAVE BEEN LOSING THEIR REFLECTIVITY. I WAS TOLD BY SOMEONE THAT IT'S THE SILVER ON THE BACKSIDE OF THE MIRROR THAT IS FLAKING OFF AND THAT IT HAPPENS WHEN THE TEMPERATURE CHANGES FAIRLY QUICKLY. I ASKE…

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THIS IS NOT ABOUT A PARTICULAR INCIDENT BUT RATHER SOMETHING THAT HAS BEEN GETTING PROGRESSIVELY WORSE. THE EXTERIOR MIRRORS HAVE BEEN LOSING THEIR REFLECTIVITY. I WAS TOLD BY SOMEONE THAT IT'S THE SILVER ON THE BACKSIDE OF THE MIRROR THAT IS FLAKING OFF AND THAT IT HAPPENS WHEN THE TEMPERATURE CHANGES FAIRLY QUICKLY. I ASKED MY LOCAL AUDI DEALERSHIP ABOUT THIS AND THEY SAID IT WAS VERY UNCOMMON AND WOULD BE ABOUT $75 TO REPLACE THE MIRROR. AS I DRIVE AROUND AND AS I WALK PAST OTHER AUDIS AND VOLKSWAGENS I NOTICE THAT THE SAME THING IS HAPPENING ON THEIR MIRRORS AS HAPPENED TO BOTH OF MINE. I ASKED A MECHANIC AT ANOTHER SHOP IN RUTLAND ABOUT IT AND HE SAID HE SEES IT ALL THE TIME. IF IT'S THE NATURE OF THE REFLECTIVE MATERIAL AND IT'S REASONABLE TO HAVE THIS HAPPEN THEN FINE. IT SEEMS AS THOUGH, HOWEVER, THAT IT'S A PROBLEM PLAGUING MANY OF THESE TYPES OF CARS AND A PROBLEM THAT AUDI, OR AT LEAST MY LOCAL DEALERSHIP, WILL NOT ADMIT IS A COMMON FAILURE WITH THESE MIRRORS. *NM

NHTSA ODI #10151597

Mileage unknown · Feb 24, 2001
Visibility

PROBLEM: WHEN TEMPERATURE FALLS BELOW 38 F, RECIRCULATION BUTTON NEVER WORKS. BEING IN BOSTON THAT COVERS MOST OF THE WINTER. THE ONLY WAY NOT TO BREATHE THE FUMES IS TO TURN THE VENTILATION OFF COMPLETELY. THIS THEN SHUTS THE HEAT AS WELL. MY NEW COMMUTE TAKES ME DAILY THROUGH THE CALAHAN TUNNEL. IF OUTSIDE IS 13 F, AND I …

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PROBLEM: WHEN TEMPERATURE FALLS BELOW 38 F, RECIRCULATION BUTTON NEVER WORKS. BEING IN BOSTON THAT COVERS MOST OF THE WINTER. THE ONLY WAY NOT TO BREATHE THE FUMES IS TO TURN THE VENTILATION OFF COMPLETELY. THIS THEN SHUTS THE HEAT AS WELL. MY NEW COMMUTE TAKES ME DAILY THROUGH THE CALAHAN TUNNEL. IF OUTSIDE IS 13 F, AND I AM STUCK IN TRAFFIC IN THE TUNNEL FOR AN HOUR, THESE ARE MY OPTIONS: KEEP THE HEAT RUNNING UNTIL POISONED BY GAS FUMES (GARAGE ANALOGY), OR SHUT OFF HEAT UNTIL FROSTBITTEN AT 13 F. CAN THIS BE CONSIDERED A SAFETY VIOLATION? ATTEMPTED RESOLUTION: AUDI OF AMERICA'S RESPONSE WAS THAT A/C HAS TO BE TURNED ON FOR RECIRCULATION BUTTON TO BE OPERATIONAL. SINCE A/C DOES NOT WORK BELOW 38 F (THEY CITED SOME FEDERAL REGULATION) SO THE RECIRCULATION BUTTON DOES NOT AS WELL. THE DEVICE WORKS AS DESIGNED, ACCORDING TO AUDI. MY DEALER, TOM WALTON OF PARK PORSCHE AUDI, TOLD ME CONFIDENTIALLY THAT THEY HAVE CUSTOMERS WHO DID NOT WANT TO PURCHASE AUDI A4 UNTIL THESE PROBLEMS WERE SOLVED. I FILED A REPORT WITH AUDIO OF AMERICA TWICE. THERE WAS NO FOLLOW UP EITHER TIME. MEANWHILE DEALERS SERVICE DEPARTMENT INFORMED ME THAT THEY INQUIRED ABOUT THIS BEFORE AND WERE TOLD THAT DEVICE OPERATES AS DESIGNED. THE SAME YEAR I RENTED EXACTLY THE SAME VEHICLE IN GERMANY AND NOTICED THAT THERE WAS A DIFFERENT A/C ASSEMBLY INSTALLED, AND THAT RECIRCULATION BUTTON WORKED WELL IN TEMPERATURES BELOW 20 F. IN U.S., THE SAME A/C ASSEMBLY BECAME AVAILABLE WITH THE 2000 MODEL YEAR, WHERE THIS PROBLEM IS NOT PRESENT. I ASKED THE DEALER IF I COULD PAY TO HAVE THAT A/C ASSEMBLY INSTALLED BUT WAS TOLD THAT THAT WAS NOT POSSIBLE. WHEN SURFING ON THE WEB, I DISCOVERED A SIMILAR PROBLEM REPORTED BY ANOTHER OWNER WITH THE SAME VEHICLE, BUT ONLY THIS TIME THE 1997 MODEL YEAR. SO IT APPEARS THAT FOR SURE 1997-1999 MODEL YEAR A4'S HAVE A FAULTY A/C ASSEMBLY. READ MICHEAL OF LA JOLLA, CA REPORT: HTTP://WWW.CONSUMERAFFAIRS.COM/AUTOMOTIVE/AUDI.HTM. *AK

NHTSA ODI #741436

Mileage unknown · Oct 4, 2000
Visibility

IF YOU OPEN ANY WINDOW OR SUNROOF, A LOUD WIND TURBLANCE CREATS A BOOM AND DOES NOT GO AWAY UNTIL YOU CLOSE ALL WINDOWS/SUN. THIS PROBLEM IS KNOWN BY AUDI , BUT THEY DO NOT WANT TO FIX IT. THEY SAY THAT I CAN GO BUY A WIND DEFLECTOR. THIS PROBLEM HAS CAUSED MAJOR HEADACES, AND HAS DISTRACTED ME FROM THE ROAD ON MANY OCCASSIONS, …

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IF YOU OPEN ANY WINDOW OR SUNROOF, A LOUD WIND TURBLANCE CREATS A BOOM AND DOES NOT GO AWAY UNTIL YOU CLOSE ALL WINDOWS/SUN. THIS PROBLEM IS KNOWN BY AUDI , BUT THEY DO NOT WANT TO FIX IT. THEY SAY THAT I CAN GO BUY A WIND DEFLECTOR. THIS PROBLEM HAS CAUSED MAJOR HEADACES, AND HAS DISTRACTED ME FROM THE ROAD ON MANY OCCASSIONS, ALMOST LEADING TO AN ACCIDENT. THIS NOISE IS VERY LOUD, AND IS CLEARLY A DEFECT IN THE DESIGN OF THIS VEHICLE. I HAVE WRITTEN TO AUDI THAT THIS PROBLEM CAN LEAD TO MANY ACCIDENTS, BUT THEY DON'T CARE. I KNOW THAT MANY PEOPLE HAVE COMPLAINED TO AUDI, AND THEY KNOW ABOUT THIS. I WOULD LIKE TO SEE NHTSA TO A RECALL TO HAVE THIS PROBLEM CORRECTED BEFORE ANYONE DIES.

NHTSA ODI #733417

Mileage unknown · Sep 29, 1999
Air BagsPower TrainVisibility

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

NHTSA ODI #849249

Mileage unknown · Mar 18, 1999
Visibility

THE DEFECTIVE WAS REPLACED WITH ANOTHER WINDSHIELD THAT WAS OF THE SAME INFERIER QUALITY WHICH I WAS INFORMED WAS THE ONLY POSSIBLE SOLUTION. THIS CAR IS UNSAFE TO DRIVE ESPECIALLY AT NIGHT.

NHTSA ODI #704595

Official recalls

4

20V056000 · 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

5

EA04017 · 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