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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

What owners actually said

131 reports
94,000 miles · Mar 7, 2007
Engine And Engine CoolingUnknown Or Other

2001 AUDI A4 1.8 TURBO: THE TIMING BELT BROKE WHILE THE CAR WAS TRAVELING IN HEAVY, RUSH HOUR TRAFFIC CAUSING THE CAR TO BE IMMEDIATELY DISABLED AND STOPPED WITH NO OPPORTUNITY TO MOVE THE CAR OFF OF THE HIGHWAY. THE 3-LANE HIGHWAY WAS BACKED UP FOR 6 MILES WHILE POLICE AND EMERGENCY WORKERS WORKED TO TOW THE CAR. THE DISABLE…

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2001 AUDI A4 1.8 TURBO: THE TIMING BELT BROKE WHILE THE CAR WAS TRAVELING IN HEAVY, RUSH HOUR TRAFFIC CAUSING THE CAR TO BE IMMEDIATELY DISABLED AND STOPPED WITH NO OPPORTUNITY TO MOVE THE CAR OFF OF THE HIGHWAY. THE 3-LANE HIGHWAY WAS BACKED UP FOR 6 MILES WHILE POLICE AND EMERGENCY WORKERS WORKED TO TOW THE CAR. THE DISABLED CAR LED TO A VERY DANGEROUS SITUATION WITH TRAFFIC BACKED UP FOR OVER 1-HOUR ON A 3-LANE HIGHWAY WITH A 55 MPH SPEED LIMIT AND COULD HAVE EASILY CAUSED ADDITIONAL ACCIDENTS. THE TIMING BELT FAILURE CAUSED EXTENSIVE, ADDITIONAL DAMAGE TO THE ENGINE THAT IS ESTIMATED TO COST ABOUT $5,000-$6,000 TO REPAIR. MY AUDI A4 HAS THE SAME 1.8 T ENGINE AND ITEM (TIMING BELT) AS IN THE 2001 VW 1.8 T AND THAT ITEM HAS BEEN RECALLED. THE TIMING BELT DEFECT IN THE 2001 A4 APPEARS TO BE QUITE WELL KNOWN TO THE TWO AUDI DEALERS THAT I FREQUENT. SINCE I BRING MY AUDI IN FOR SERVICE AT THE REGULAR INTERVALS - AND SINCE THE TIMING BELT ISSUE IS WELL KNOWN TO AUDI - I WOULD HAVE EXPECTED THE AUDI DEALERS TO BRING THIS ISSUE TO MY ATTENTION SO THAT WE COULD HAVE REPLACED THE BELT AS PART OF REGULAR PREVENTIVE MAINTENANCE. THE FACT THAT THIS WELL KNOWN PROBLEM WAS NOT HANDLED IN PREVENTIVE MAINTENANCE LED TO A VERY DANGEROUS TRAFFIC INCIDENT AND CAUSED EXTENSIVE DAMAGE TO THE VEHICLE'S ENGINE. *JB

NHTSA ODI #10184423

Mileage unknown · Feb 12, 2007
Electrical System

2001 AUDI A4 WITH GAUGE CLUSTER PROBLEMS**NAR**CC THE CONSUMER STATED THE CIRCUIT BOARD HAS BEEN A PROBLEM FOR YEARS WITH AUDI'S. *JB

NHTSA ODI #10182693

89,420 miles · Oct 16, 2006
Steering

DURING 90,000 MILE SERVICE, THE MECHANIC DISCOVERED THAT BOTH SIDE SPINDLES (STEERING KNUCKLES) WERE CRACKED. ACCORDING TO THE MECHANIC, THE CAR WAS IN A POSITION TO LOOSE STEERING CAPABILITY WITH THOSE ITEMS CRACKED. THEY SAID IT'S RARE TO SEE BOTH SIDES CRACKED. TIE ROD ENDS WERE ALSO REPLACED DUE TO WEAR. I STILL HAVE BOT…

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DURING 90,000 MILE SERVICE, THE MECHANIC DISCOVERED THAT BOTH SIDE SPINDLES (STEERING KNUCKLES) WERE CRACKED. ACCORDING TO THE MECHANIC, THE CAR WAS IN A POSITION TO LOOSE STEERING CAPABILITY WITH THOSE ITEMS CRACKED. THEY SAID IT'S RARE TO SEE BOTH SIDES CRACKED. TIE ROD ENDS WERE ALSO REPLACED DUE TO WEAR. I STILL HAVE BOTH SPINDLES IF NEEDED. MECHANIC REPLACED BOTH SPINDLES AND TIE ROD ENDS. THE VEHICLE IS CERTIFIED AND STILL UNDER WARRANTY FROM AUDI UNTIL THE END OF DECEMBER. THE VEHICLE HAD AN 80,000 MILE SERVICE DONE IN APRIL 2006. *NM

NHTSA ODI #10170949

38,500 miles · Aug 20, 2006
Service Brakes, Hydraulic

I WAS CHASING A BRAKE SQUEAL. WHEN I REMOVED THE FRONT PADS ON OUR AUDI A4, (2001), THREE OF THE FOUR PADS WERE NOT ATTACHED TO THEIR BACKING PLATES. THESE WERE THE ORIGINAL ATE PADS; THE CAR HAS TRAVELED ABOUT 38000 MILES. *JB

NHTSA ODI #10166053

85,000 miles · Apr 27, 2006
Engine And Engine Cooling

DT*: THE CONTACT STATED WHILE DRIVING 50 MPH ON THE INTERSTATE, THERE WAS A POPPING NOISE FROM THE ENGINE COMPARTMENT FOLLOWED BY A LOST OF ALL POWER. THE CONTACT MANAGED TO PULL OVER WITHOUT INCIDENT. THE ENGINE WOULD NOT RESTART AND THE VEHICLE WAS TOWED TO THE DEALER FOR INSPECTION. THE DEALER DETERMINED THERE WAS A HOLE …

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DT*: THE CONTACT STATED WHILE DRIVING 50 MPH ON THE INTERSTATE, THERE WAS A POPPING NOISE FROM THE ENGINE COMPARTMENT FOLLOWED BY A LOST OF ALL POWER. THE CONTACT MANAGED TO PULL OVER WITHOUT INCIDENT. THE ENGINE WOULD NOT RESTART AND THE VEHICLE WAS TOWED TO THE DEALER FOR INSPECTION. THE DEALER DETERMINED THERE WAS A HOLE IN THE ENGINE AND WAS UNABLE TO IDENTIFY WHAT CAUSED THE HOLE, HOWEVER A NEW ENGINE REPLACEMENT WAS NECESSARY. UPDATED 5/10/2006 - *NM

NHTSA ODI #10156320

89,000 miles · Jan 27, 2006
Engine And Engine Cooling

I HAVE AN AUDI A4 1.8 T AND THE HYDRAULIC TIMING BELT TENSIONER LOST ITS PRESSURE WITCH MADE THE TIMING BELT SLIP, FORCING THE PISTONS INTO THE VALVES AND BENDING THEM, CAUSING THE ENGINE TO BASICALLY SELF DESTRUCT AFTER ONLY 89000 MILES WHEN THE OWNER'S MANUAL ONLY RECOMMENDED CHANGING THE TIMING BELT AFTER 120000 MILES. I CALL…

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I HAVE AN AUDI A4 1.8 T AND THE HYDRAULIC TIMING BELT TENSIONER LOST ITS PRESSURE WITCH MADE THE TIMING BELT SLIP, FORCING THE PISTONS INTO THE VALVES AND BENDING THEM, CAUSING THE ENGINE TO BASICALLY SELF DESTRUCT AFTER ONLY 89000 MILES WHEN THE OWNER'S MANUAL ONLY RECOMMENDED CHANGING THE TIMING BELT AFTER 120000 MILES. I CALLED AUDI, AND THEY TOLD ME THEY WOULD FIX IT FOR $5,000 AND DON'T FEEL I SHOULD BE THE ONE PAYING FOR THIS WHEN THERE WAS NOTHING I COULD HAVE DONE TO PREVENT THIS PROBLEM. *AK

NHTSA ODI #10148836

58,000 miles · Dec 12, 2005
Engine And Engine Cooling

1) NORMAL DRIVING 2) CAM SHAFT GASKET FAILURE. CAUSING OIL LEAK. 3) TAKEN TO REPAIR SHOP. AUDI MAINTENANCE WARRANTY DOES NOT CHECK FOR THIS. ISSUE OCCURRED AFTER WARRANTY EXPIRED AFTER 50000 MILES. *NM

NHTSA ODI #10145042

Mileage unknown · Dec 9, 2005
Service Brakes, Hydraulic

AUDI HAS FAULTY AUTOMATIC BRAKING SYSTEM CONTROLLER UNITS. THEIR 1998 - 2002 UNITS HAVE A VERY HIGH INCIDENCE OF FAILURE IN THE ELECTRONICS COMPONENT. THEY HAVE DONE A RECALL FOR THE EXACT SAME PART FOR THE VW JETTA, BUT NOT FOR THE AUDI'S. THEY REQUIRE $1,700 TO REPAIR IT, SO MANY PEOPLE LEAVE IT AS IS, WHICH IS UNSAFE. *NM

NHTSA ODI #10144848

Mileage unknown · Dec 7, 2005
Unknown Or Other

CONSUMER COMPLAINT REGARDING TIRE SPEED RATING APPROPIATE FOR 2001 AUDI A4 AVANT. *TS AUDI OF AMERICA REFUSES TO PROVIDE THE CONSUMER WITH WRITTEN CONFIRMATION OF THE TIRE SPEED RATING APPROPRIATE FOR THE CONSUMER'S VEHICLE. *NM

NHTSA ODI #10145378

47,857 miles · Nov 15, 2005
Power Train

WAS MAKING A LEFT HAND TURN GOING 5 MPH OR LESS WHEN THE LEFT FRONT AXEL ON MY 2001 A4 BROKE OFF. IT HAS BEEN DETERMINED BY THE DEALER TO BE A MANUFACTURER DEFECT, BUT AUDI USA WILL NOT DO ANYTHING TO ASSIST IN THE REPAIR OF THE DEFECTIVE PRODUCT AS I AM NOT THE ORIGINAL OWNER OF THE VEHICLE. IF I WERE, THEY WOULD ASSIST/COVER…

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WAS MAKING A LEFT HAND TURN GOING 5 MPH OR LESS WHEN THE LEFT FRONT AXEL ON MY 2001 A4 BROKE OFF. IT HAS BEEN DETERMINED BY THE DEALER TO BE A MANUFACTURER DEFECT, BUT AUDI USA WILL NOT DO ANYTHING TO ASSIST IN THE REPAIR OF THE DEFECTIVE PRODUCT AS I AM NOT THE ORIGINAL OWNER OF THE VEHICLE. IF I WERE, THEY WOULD ASSIST/COVER THE REPAIR COSTS. *NM

NHTSA ODI #10142765

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.