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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

Service Brakes, Hydraulic complaints

81 reports
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Mileage unknown · Mar 20, 2000
Service Brakes, HydraulicSuspension

DURING WET WEATHER BRAKING, THE FRONT DISC BRAKES SEEM TO FAIL. THE CARS FRONT END SEEMS TO SLIDE TO THE LEFT APPROXIMATELY 4 FEET UPON BRAKING. THIS HAPPENS ONLY IN THE RAIN, WITH NO ADVERSE EFFECTS DURING DRY WEATHER. I HAVE CONTACTED AUDI, WHO THEN REFERRED ME TO THE DEALERSHIP. THE DEALERSHIP HAS STATED THAT AUDI WILL NO…

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DURING WET WEATHER BRAKING, THE FRONT DISC BRAKES SEEM TO FAIL. THE CARS FRONT END SEEMS TO SLIDE TO THE LEFT APPROXIMATELY 4 FEET UPON BRAKING. THIS HAPPENS ONLY IN THE RAIN, WITH NO ADVERSE EFFECTS DURING DRY WEATHER. I HAVE CONTACTED AUDI, WHO THEN REFERRED ME TO THE DEALERSHIP. THE DEALERSHIP HAS STATED THAT AUDI WILL NOT WARRANTY THE CORRECTION, SINCE THEY DO NOT KNOW HOW WIDESPREAD THE PROBLEM IS. HOWEVER, I HAVE NOTICED A LARGE AMOUNT OF COMPLAINTS ON YOUR WEBSITE, AND ON THE AUDIWORLD WEBSITE. I SUBMIT THAT THERE IS A DEFECT IN THE FRONT BRAKING SYSTEM OF THE A4 DURING WET WEATHER DRIVING, AND THAT THIS DEFECT COULD AND WILL CAUSE AN ACCIDENT. EVEN THOUGHT THE CAR DID STOP, IT REQUIRED STEERING CORRECTION TO PUT IT BACK INTO THE LANE. THE MANUFACTURER SHOULD ACKNOWLEDGE THAT THERE IS A DEFECT AND IT SHOULD BE COVERED BY THE MANUFACTURER. IF THERE IS AN ACCIDENT, AUDI WILL BE HELD RESPONSIBLE AND CAN BE SURE THE REPUTATION OF THEIR CARS WILL SUFFER AGAIN. PLEASE INVESTIGATE THIS PROBLEM AS IT IS POTENTIALLY DANGEROUS. *AK

NHTSA ODI #720385

Mileage unknown · Feb 28, 2000
Service Brakes, Hydraulic

THIS CAR SEEMS TO HAVE A SERIOUS PROBLEM DURING WET BRAKING. AFTER NUMEROUS OCCURRENCES, I WAS FORCED TO SPEND $400 TO REPLACE THE STOCK PADS THAT MAY CAUSE THIS PROBLEM. WITH THE NEW BRAKE PADS, NO RE-OCCURRENCE YET. MANUFACTURER SEEMS INATTENTIVE TO THIS. PERHAPS NHTSA CAN CONTACT MANUFACTURER REGARDING THIS ISSUE AS I'M NOT T…

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THIS CAR SEEMS TO HAVE A SERIOUS PROBLEM DURING WET BRAKING. AFTER NUMEROUS OCCURRENCES, I WAS FORCED TO SPEND $400 TO REPLACE THE STOCK PADS THAT MAY CAUSE THIS PROBLEM. WITH THE NEW BRAKE PADS, NO RE-OCCURRENCE YET. MANUFACTURER SEEMS INATTENTIVE TO THIS. PERHAPS NHTSA CAN CONTACT MANUFACTURER REGARDING THIS ISSUE AS I'M NOT THE ONLY OWNER TO EXPERIENCE THIS. *AK

NHTSA ODI #719389

Mileage unknown · Feb 28, 2000
Service Brakes, HydraulicCrash

WET BRAKING PERFORMANCE IS MISERABLE! AND DANGEROUS- MANY SECOND DELAYS. *AK

NHTSA ODI #719371

Mileage unknown · Feb 16, 2000
Service Brakes, Hydraulic

BRAKES FAILED COMPLETELY AT 15MPH WHILE APPROACHING STOP SIGN. CAR CONTINUED RIGHT ONTO THE HIGHWAY. ABS DID NOT KICK IN. IT HAD RAINED THAT MORNING. *AK

NHTSA ODI #718821

Mileage unknown · Feb 13, 2000
Service Brakes, Hydraulic

POOR BRAKING PERFORMANCE IN THE RAIN OR SNOWY OR SLUSHY CONDITIONS, AUDI AG HAS ACKNOWLEDGED A KNOWN PROBLEM WITH BRAKE LINING CONTAMINATION, THE FOLLOWING IS OFF OF THEIR WEB PAGE AND IN AUTOMOTIVE NEWS *** HTTP://WWW.AUDI.COM/JAVA/NEWS/INDEX.HTML REDUCED BRAKING PERFORMANCE AS A RESULT OF ROAD SALT AUDI AG HAS RECENTLY BEEN I…

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POOR BRAKING PERFORMANCE IN THE RAIN OR SNOWY OR SLUSHY CONDITIONS, AUDI AG HAS ACKNOWLEDGED A KNOWN PROBLEM WITH BRAKE LINING CONTAMINATION, THE FOLLOWING IS OFF OF THEIR WEB PAGE AND IN AUTOMOTIVE NEWS *** HTTP://WWW.AUDI.COM/JAVA/NEWS/INDEX.HTML REDUCED BRAKING PERFORMANCE AS A RESULT OF ROAD SALT AUDI AG HAS RECENTLY BEEN INFORMED BY DRIVERS OF ITS MEDIUM-SIZE MODEL, THE A4, OF SPORADICALLY REDUCED BRAKING PERFORMANCE WHEN THE BRAKES ARE APPLIED FOR THE FIRST TIME AFTER THE CAR HAS BEEN PARKED, OR IF THE BRAKES HAVE NOT BEEN OPERATED FOR SOME TIME. UPON EXAMINATION IN THE WORKSHOP, IN EVERY REPORTED INSTANCE NO DEFECTS WERE DETECTED. THE A4'S BRAKES, WHICH HAVE ALWAYS ACHIEVED A PARTICULARLY GOOD RATING IN TESTS BY TRADE PUBLICATIONS, EXHIBITED EFFICIENT DECELERATION. FOLLOWING INITIAL INVESTIGATIONS BY AUDI'S TECHNICAL EXPERTS, WHOSE FINDINGS WERE CONFIRMED BY ADAC EXPERTS, IT IS SUSPECTED THAT NEW TYPES OF ROAD SALT, IN PARTICULAR MAGNESIUM CHLORIDE USED IN A TECHNIQUE KNOWN AS "WET SALTING" AFFECTS THE FRICTION BETWEEN THE BRAKE DISC AND THE BRAKE PAD AUDI'S TECHNICIANS ARE WORKING INTENSIVELY ON FINDING A SOLUTION TO THE PROBLEM AS RAPIDLY AS POSSIBLE. INDEPENDENTLY OF THE OUTCOME, AUDI AG AND MOTORING ASSOCIATIONS RECOMMEND DRIVERS TO FOLLOW A WELL-ESTABLISHED PIECE OF ADVICE FOR WINTER DRIVING: TRAFFIC PERMITTING, IT IS ADVISABLE TO APPLY THE BRAKES INTERMITTENTLY, ESPECIALLY BEFORE THE START OF A JOURNEY AND BEFORE PARKING THE CAR. WITH THIS SIMPLE TECHNIQUE, THE DRIVER CAN THUS MAKE SURE THAT THE BRAKES WILL FUNCTION PROPERLY THE NEXT TIME THEY ARE NEEDED PRESS INQUIRIES TO AUDI AG, PRESS: PRODUCT AND TECHNOLOGY D-85045 INGOLSTADT TELEPHONE: +49 - 841 - 89 32100, +49 - 841 - 89 37947 TELEFAX: +49 - 841 - 89 32817 ***** ADDITIONALLY, THIS PART NUMBER SUPPOSEDLY ADDRESS A PROBLEM WITH BACKING PLATES TO IMPROVE WET BRAKING *KIT # 8D0 698 998 ADDRESSES AN ISSSUE WITH WET, ICY, SLUSHY CONDITIONS AND POOR BRAKING WITH A LARGER BRAKE BACKING PLATE ..*

NHTSA ODI #718702

Mileage unknown · Jan 25, 2000
Service Brakes, Hydraulic

IN WET WEATHER BRAKES DO NOT STOP VEHICLE UNTIL DEPRESSED FOR APPROXIMATELY 3-5 SECONDS. *AK

NHTSA ODI #717851

Mileage unknown · Dec 17, 1999
Service Brakes, HydraulicCrash

WHILE IN ROUTE TO HAVE RECALL REPAIR ON THE BRAKE BOOSTER BY PASS, THE BRAKES LOCKED UP AND THE CONSUMER SLID INTO A DITCH, DAMAGING VEHICLE. *NLM

NHTSA ODI #550030

Mileage unknown · Dec 6, 1999
Service Brakes, Hydraulic

THE BRAKES DONT WORK IS WET DRIVING CONDITIONS. I HAVE HAD THIS HAPPEN MANY TIME AT SPEEDS FROM 15 TO 70 MPH. WHEN DRIVING IN THE RAIN OR ON WET ROADS, I WILL APPLY THE BRAKES BUT THE CAR DOES NOT STARTING STOPPING FOR A SECOND OR TWO. WHEN THE BRAKES FINALLY DO START WORKING THEY ALMOST ALWAY GO INTO ANTI-LOCK MODE BECAUS…

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THE BRAKES DONT WORK IS WET DRIVING CONDITIONS. I HAVE HAD THIS HAPPEN MANY TIME AT SPEEDS FROM 15 TO 70 MPH. WHEN DRIVING IN THE RAIN OR ON WET ROADS, I WILL APPLY THE BRAKES BUT THE CAR DOES NOT STARTING STOPPING FOR A SECOND OR TWO. WHEN THE BRAKES FINALLY DO START WORKING THEY ALMOST ALWAY GO INTO ANTI-LOCK MODE BECAUSE I HAVE HAD TO PUSH SO HARD JUST TO GET THEM TO WORK. THIS IS A SCARY AND DANGEROUS PROBLEM AND I HAVE HEARD OF OTHER PEOPLE HAVING IT ALSO.

NHTSA ODI #715678

Mileage unknown · Nov 25, 1999
Service Brakes, Hydraulic

WET WEATHER BRAKING VERY POOR UNDER CERTAIN CONDITIONS

NHTSA ODI #715265

Mileage unknown · Nov 25, 1999
Service Brakes, Hydraulic

SEVERE DELAYED BRAKING WHEN ROAD CONDITIONS ARE WET, RAINING, ETC.

NHTSA ODI #715250

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