← New search

2001 Audi A4

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2001 Audi A4 do not stand out strongly from the model-year median of 76.5.

About this comparison →

When problems were reported

Mileage at the reported incident

86 reports with mileage · 45 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.

  • Electrical System. Review the 35 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine And Engine Cooling. Review the 31 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes, Hydraulic. Review the 28 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

5 crash reports9 fire reports1 injury reports

Engine And Engine Cooling complaints

31 reports
Clear category filter
Mileage unknown · Aug 17, 2011
Engine And Engine Cooling

2001 AUDI A4 WITH TIMING BELT FAILURE AND REPAIR. CONSUMER STATES THAT THE TIMING BELT REPAIR DID NOT LAST AND HIS VEHICLE COMPLETELY FAILED ON THE HIGHWAY. CONSUMER WAS THEN INFORMED OF AN OIL SLUDGE ISSUE. *KB UPDATED 10/19/11.

NHTSA ODI #10420283

6,700 miles · Jul 12, 2009
Engine And Engine CoolingFire

THE "CHECK ENGINE" LIGHT ON MY 2001 AUDI A4 QUATTRO CAME ON AND WAS RUNNING SOMEWHAT ROUGHLY. I CALLED THE DEALERSHIPS SERVICE DEPARTMENT AND THEY TOLD ME TO BRING IT IN. ON THE 8-MILE FREEWAY DRIVE THE ENGINE CAUGHT FIRE AND DESTROYED THE ENGINE. *TR

NHTSA ODI #10276441

Mileage unknown · May 18, 2009
Engine And Engine Cooling

I HAVE HAD TO REPLACED ALL FOUR COILS TWO (2) TIMES ON MY AUDI A.4 1.8T AND AUDI USA SAYS THIS IS NORMAL. *TR

NHTSA ODI #10269053

84,429 miles · Jul 22, 2008
Engine And Engine Cooling

TL*THE CONTACT OWNS A 2001 AUDI A4. WHILE DRIVING APPROXIMATELY 35 MPH UPHILL, THE VEHICLE STALLED. THERE WERE NO WARNING LIGHTS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC AND IT WAS DISCOVERED THAT THE TIMING BELT NEEDED REPLACING AND THE ENGINE WAS DESTROYED. THE VEHICLE HAS NOT B…

Read full complaint

TL*THE CONTACT OWNS A 2001 AUDI A4. WHILE DRIVING APPROXIMATELY 35 MPH UPHILL, THE VEHICLE STALLED. THERE WERE NO WARNING LIGHTS ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC AND IT WAS DISCOVERED THAT THE TIMING BELT NEEDED REPLACING AND THE ENGINE WAS DESTROYED. THE VEHICLE HAS NOT BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 84,429.

NHTSA ODI #10235302

107,280 miles · May 2, 2008
Engine And Engine Cooling

1. BOTH TIMES, CAR WAS BEING DRIVEN NORMALLY AT AROUND 30-40 MPH WHEN, WITHOUT ANY WARNING AT ALL, THE CAR COMPLETELY STOPPED FROM IT'S SPEED TO ZERO MPH IMMEDIATELY, ENGINE DIES AND ALL POWER WAS GONE FROM THE CAR. ALL ATTEMPTS TO RESTART THE CAR WERE UNSUCCESSFUL. IT IS NOT A BATTERY ISSUE. THIS CAR IS VERY WELL MAINTAIN…

Read full complaint

1. BOTH TIMES, CAR WAS BEING DRIVEN NORMALLY AT AROUND 30-40 MPH WHEN, WITHOUT ANY WARNING AT ALL, THE CAR COMPLETELY STOPPED FROM IT'S SPEED TO ZERO MPH IMMEDIATELY, ENGINE DIES AND ALL POWER WAS GONE FROM THE CAR. ALL ATTEMPTS TO RESTART THE CAR WERE UNSUCCESSFUL. IT IS NOT A BATTERY ISSUE. THIS CAR IS VERY WELL MAINTAINED TO ALL MANUFACTURER'S RECOMMENDATIONS WITH OEM PARTS USED FOR ALL SERVICES WHICH ARE ALL DONE BY CERTIFIED TECHNICIANS AT THE DEALER OR REPUTABLE INDEPENDENT SHOP. 2. OCCURRED FIRST ON SUNDAY 4/27/08 AND AGAIN ON 5/1/08. WE ARE VERY LUCKY THAT IT HAPPENED WHEN WE WERE ON QUIET SUBARBAN STREETS AND NOT THE HIGHWAY OTHERWISE WITH THE CAR COMING TO A SUDDEN AND COMPLETE STOP THERE COULD HAVE BEEN A VERY MESSY ACCIDENT. IMAGINE GOING FROM 65MPH TO 0MPH WITHOUT ANY WARNING ON A RUSH HOUR FREEWAY. PLEASE INVESTIGATE THIS VERY THOROUGHLY. 3. AFTER FIRST INCIDENT, CAR WAS TAKEN TO REPUTABLE AUDI AUTO REPAIR SHOP THAT REPLACED AN ELECTRIC WIRE, ELECTRICAL CONNECTOR AND IGNITION SWITCH. MECHANICS' CLAIM TO HAVE FOUND POWER SUPPLY CABLE TO THE ECU WITH EXCESSIVE RESISTANCE, TRACED THE WIRE AND FOUND A BAD CONNECTION IN THE HARNESS CONNECTOR. BY-PASSED CONNECTOR AND NOW THE COMPUTER IS COMMUNICATING OK (COPIED FROM MECHANICS' OPERATIONS AND PARTS REPORT). THIS TOOK THE MECHANICS' 3 DAYS AS THEY SAID IT WAS A VERY FREAKY, UNUSUAL AND HARD TO FIND AND SOLVE ELECTRICAL PROBLEM. CLEARLY THIS DID NOT WORK SINCE THE CAR AGAIN SUDDENLY STOPPED 5 HOURS AFTER THE ALLEGED FIX. NOW HAVE TOWED THE CAR TO AUDI DEALERSHIP. 4. AFTER FIRST INCIDENT, CALLED AUDI CLIENT RELATIONS U.S.A. TO INFORM THEM OF WHAT WE THOUGHT WAS A MAJOR SAFETY RISK TO HELP MAKE SURE IT DID NOT HAPPEN TO OTHERS IN THE FUTURE SINCE IT COULD LEAD TO A VERY MESSY/FATAL ACCIDENT(S) BUT THEY WERE NOT AT ALL INTERESTED SINCE IT IS OUTSIDE WARRANTY. *TR

NHTSA ODI #10226478

80,369 miles · Apr 2, 2008
Engine And Engine CoolingSuspensionUnknown Or Other

PURCHASED AN 2001 AUDIO (USED) AT D & S AUTO AND WITHIN A WEEK THERE WAS SCREECHING NOISE COMING FROM THE ENGINE, ENGINE LIGHT CAME ON. BROUGHT IT BACK TO D & S AUTO. D & S AUTO HAD IT LOOKED AT AND THEY SAID THE LIST OF PROBLEMS WERE NONE FOUND, ONLY THAT THEY FIXED THE ENGINE LIGHT. COUPLE DAYS LATER THE ENGINE LIGHT CAME BACK…

Read full complaint

PURCHASED AN 2001 AUDIO (USED) AT D & S AUTO AND WITHIN A WEEK THERE WAS SCREECHING NOISE COMING FROM THE ENGINE, ENGINE LIGHT CAME ON. BROUGHT IT BACK TO D & S AUTO. D & S AUTO HAD IT LOOKED AT AND THEY SAID THE LIST OF PROBLEMS WERE NONE FOUND, ONLY THAT THEY FIXED THE ENGINE LIGHT. COUPLE DAYS LATER THE ENGINE LIGHT CAME BACK ON AND ALSO THE REAR BACK TIRE WAS MAKING A STRANGE NOISE. D & S AUTO MADE AN APPOINTMENT FOR THE 2001 AUTO TO GO TO ANOTHER DEALER TO BE LOOKED AT. ALSO, PURCHASED THE BEST FULL WARRANTY ON THE VEHICLE. THE DEALER PRINTED OUT A LIST OF PROBLEMS WHICH ARE LISTED ABOVE HE SAID THAT ARE PROBLEMS AND THE COST WAS GOING TO BE AROUND $3,000.00 AND THAT THE WARRANTY DOES NOT COVER ANY OF THE REPAIRS. *TR

NHTSA ODI #10223105

Mileage unknown · Mar 7, 2008
Engine And Engine CoolingFire

OWNER WAS DRIVING VEHICLE WHEN SMOKE STARTED TO COME FROM THE DASHBOARD. EXAMINATION REVEALED THAT A RUBBER BODY PLUG IN THE RIGHT FRONT TOWBOARD IGNITED DUE TO AN OVERHEATED EXHAUST SYSTEM, CAUSING A FIRE THAT BURNED ON THE RIGHT FRONT FLOOR AND UPWARD INTO THE DASH. SPARK PLUGS SHOWED AN ENGINE MANAGEMENT SYSTEM PROBLEM EXISTE…

Read full complaint

OWNER WAS DRIVING VEHICLE WHEN SMOKE STARTED TO COME FROM THE DASHBOARD. EXAMINATION REVEALED THAT A RUBBER BODY PLUG IN THE RIGHT FRONT TOWBOARD IGNITED DUE TO AN OVERHEATED EXHAUST SYSTEM, CAUSING A FIRE THAT BURNED ON THE RIGHT FRONT FLOOR AND UPWARD INTO THE DASH. SPARK PLUGS SHOWED AN ENGINE MANAGEMENT SYSTEM PROBLEM EXISTED THAT CAUSED THE OVERHEATED EXHAUST. *TR

NHTSA ODI #10220404

42,140 miles · Aug 10, 2007
Electrical SystemEngine And Engine Cooling

TL*THE CONTACT OWNS A 2001 AUDI A4. HE HEARD A HUMMING SOUND COMING FROM THE VEHICLE. THE DEALER STATED THAT THE CAMSHAFT TENSIONER NEEDED TO BE REPLACED. HE ALSO STATED THAT THE POWER CIRCUIT FAILED DUE TO A LEAK ON THE ROOF. THE CURRENT AND FAILURE MILEAGES WERE 42,140.

NHTSA ODI #10199275

99,100 miles · Aug 2, 2007
Engine And Engine Cooling

2001 AUDI A4 1.8 TURBO AT 99.1K MILES. THE TIMING BELT PREMATURELY NAPPED WHILE THE CAR WAS TRAVELING IN A BUSY MORNING COMMUTE CAUSING CAR TO DISABLED ON THE FREEWAY. THE TIMING BELT FAILURE CAUSED EXTENSIVE, ADDITIONAL DAMAGE TO THE ENGINE THAT ESTIMATED TO COAST ABOUT $6000 TO REPAIR. I HAVE ALL MY MAINTENANCES DONE AT THE…

Read full complaint

2001 AUDI A4 1.8 TURBO AT 99.1K MILES. THE TIMING BELT PREMATURELY NAPPED WHILE THE CAR WAS TRAVELING IN A BUSY MORNING COMMUTE CAUSING CAR TO DISABLED ON THE FREEWAY. THE TIMING BELT FAILURE CAUSED EXTENSIVE, ADDITIONAL DAMAGE TO THE ENGINE THAT ESTIMATED TO COAST ABOUT $6000 TO REPAIR. I HAVE ALL MY MAINTENANCES DONE AT THE AUDI DEALERS AND FOLLOW ALL THE RECOMMEND SERVICE BY AUDI. I WAS NEVER BEEN RECOMMENDED TO REPLACE THE TIMING BELT ON MY ALL PREVIOUS VISITS FOR MAINTENANCE SERVICE. THE RECOMMENDED TIMING BELTS REPLACEMENT BY AUDI FOR MY MODEL IS 105K MILES. BOTH AUDI DEALER AND AUDI DENIED BEEN IN RESPONSIBLE FOR THE TIMING BELT DEFECT AND/OR INCORRECT TIMING BELT MAINTENANCE RECOMMENDATION WHICH SUBSEQUENTLY RESULT THE ENGINE DAMAGE AND PROVIDE ANY ASSISTANT. ACCORDING TO AUDI, THEY DO NOT GUARANTEE THE TIMING BELT WILL LAST TO 105K MILES, ONLY THAT IT IS THEIR RECOMMENDATION. *JB

NHTSA ODI #10198334

99,000 miles · Jul 30, 2007
Engine And Engine Cooling

TL*THE CONTACT OWNS A 2001 AUDI A4. WHILE DRIVING 55 MPH, THE VEHICLE LOST POWER AND SHUT OFF. THE VEHICLE WAS UNABLE TO BE RESTARTED AND WAS TOWED TO THE DEALER. THE DEALER STATED THAT THE TIMING BELT SNAPPED. AS OF JULY 30, 2007, THE VEHICLE HAS NOT BEEN REPAIRED. THE CURRENT AND FAILURE MILEAGES WERE 99,000.

NHTSA ODI #10197863

Official recalls

1

21V470000 · Air Bags:frontal:driver Side:inflator Module

Jun 23, 2021

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2000-2001 Audi TT Coupe, TT Roadster, 2000-2002 A4, and S4 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 airbag inflator with an alternative inflator, free of charge. Owner notification letters were mailed November 2, 2021. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69CJ.

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

1

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.