RoadVitals

2001 Audi A4

Recalls, owner-reported complaints, investigations and safety data

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
131
Latest Mar 2, 2026
Safety recallsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
3
Latest Jun 23, 2021
InvestigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
1
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
14
1 injuries, 0 deaths reported

Overview

Our database contains 131 NHTSA owner-reported complaints for the 2001 Audi A4, most frequently naming the electrical, brakes and engine categories. 3 safety recalls have been issued covering this model year; 1 NHTSA investigation names it; and 104 manufacturer communications are on file.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

What owners report

Complaints grouped by the component NHTSA recorded

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Safety recalls

3 campaigns cover this model year

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
21V470000

AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE

Jun 23, 2021
62,812 units potentially affected
The defect: 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.
The risk: 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.
The 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.
Volkswagen Group of America, Inc.Manufacturer number 69CJView on NHTSA.gov
14E007000

ENGINE AND ENGINE COOLING:ENGINE

Mar 7, 2014
50 units potentially affected
The defect: The Gates Corporation (Gates) is recalling certain aftermarket Tru-Flow Water Pumps, part number TFW 41127, sold at certain NAPA Auto Parts and/or installed by automotive service technicians after November 1, 2013 (and manufactured August 2013 through October 2013) that have a black-colored pulley/sprocket or do not have 'US9377' stamped on the water pump housing. These service replacement parts were sold for use in model year 1999-2005 Audi A4, 2000-2006 Audi TT, 1998-2005 Volkswagen Beetle, 1999-2006 Golf, 1999-2008 and 2011-2013 Volkswagen Jetta, and 2000-2005 Volkswagen Passat. In the affected water pumps, the pulley or sprocket that turns the timing belt may develop microfractures causing the timing belt to fail.
The risk: A failure of the timing belt may cause the engine to shut down, potentially increasing the risk of a vehicle crash.
The remedy: Gates will notify owners, and dealers will replace the water pump, free of charge. The recall began during May 2014. Owners may contact The Gates Corporation at 1-303-744-1911.
The Gates CorporationView on NHTSA.gov
06E049000

EXTERIOR LIGHTING

May 24, 2006
27,176 units potentially affected
The defect: CERTAIN CK MOTORSPORTS COMBINATION HEADLIGHTS, CLEAR CORNER, BUMPER, AND SIDE MARKER LIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON THE PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
The risk: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
The remedy: CK MOTORSPORT WILL NOTIFY OWNERS AND REPLACE THE NONCOMPLIANT LAMPS FREE OF CHARGE. THE RECALL BEGAN ON JULY 1, 2006. OWNERS MAY CONTACT CK MOTORSPORT AT 1-909-610-7211.
CK MOTORSPORT, INC.View on NHTSA.gov

Safety investigations

NHTSA inquiries naming this vehicle. An investigation is not a finding of a defect.

PE02008ClosedPreliminary Evaluation

BRAKE AND CLUTCH PEDAL BRACKET

Opened Jan 23, 2002
Closed Jul 12, 2002
SERVICE BRAKES, HYDRAULIC

Recent owner complaints

Reports submitted to NHTSA, shown in the owner's own words

View all 131
Airbags
Filed Mar 2, 2026

I just purchased this vehicle from a private owner. I am already aware of the driver side airbag recall. Went to turn key to auxiliary to close sun roof and the steering wheel airbag deployed in my face. The vehicle had been parked and not driven for over 12 hours. Vehicle is available for inspection any time.

NHTSA ID
11721510
Incident
Mar 2, 2026
Airbags
Filed Mar 4, 2022

The contact owns a 2001 Audi A4. The contact stated that upon closing the driver's side door, her husband heard a loud gun-like sound and he noticed that the passenger-side curtain air bags had deployed. There were no warning lights illuminated. The contact's husband cut the curtain air bags and drove the vehicle to his residence. The dealer was not notified of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 180,000. The VIN was not available.

NHTSA ID
11455179
Incident
Mar 3, 2022
Mileage
180,000 mi
Engine
Filed May 29, 2019
Fire reported

2001 AUDI A4 QUATTRO 2.8L. AS DRIVING SMOKE WAS COMING FROM HOOD.. PARK AND REALIZE THE ENGINE WAS ON FIRE. IT LOOK LIKE IT STARTED BY THE PASSENGER SIDE HEADLIGHT AND SPREAD. I READ THAT AUDI HAD A RECALL ON HEAD LIGHT SWITCH BUT DID NOT REC, A RECALL LETTER. NOT EXACTLY SURE WHERE THE FIRE STARTED MY AUDI CAUGHT ON FIRE. I DONT'T HAVE PICTURES TO UPLOAD BUT I WILL SOON. I AM VERY HURT TO KNOW THAT THE CAR I ENJOYED DRIVING CAUGHT ON FIRE/DISAPPOINTED WITH AUDI

NHTSA ID
11210749
Incident
May 27, 2019
Mileage
167,000 mi
Airbags
Filed Aug 18, 2016

WHILE DRIVING THE VEHICLE ON A HIGHWAY GOING STRAIGHT AT ~65MPH THE PASSENGER SIDE CURTAIN AND SEAT AIRBAGS DEPLOYED FOR NO REASON. VEHICLE MANUFACTURER CITED A "CRASH" SIGNAL FROM SIDE IMPACT SENSOR WAS THE CAUSE OF THE FALSE DEPLOYMENT. NO PHYSICAL CAUSE COULD BE FOUND, NO DAMAGE WAS FOUND ON VEHICLE AND ALL AIRBAG SYSTEM WIRING WAS FOUND TO BE INTACT AND ORIGINAL. MANUFACTURER WOULD NOT OWN FAILURE AND CITED THE VEHICLE BEING LOWERED AS THE CAUSE. MANUFACTURER WAS UNABLE TO PROVIDE ANY EVIDENCE FOR THIS CONCLUSION AND VEHICLE IS WELL WITHIN LOCAL LAWS/REGULATIONS FOR LOWERED VEHICLES.

NHTSA ID
10896796
Incident
Jul 18, 2016
Mileage
139,733 mi
Brakes
Filed Aug 9, 2014
Crash reported

BRAKES WERE WORKING FINE, COMING OFF FREEWAY, WAS COASTING THRU LIGHT, TRAFFIC STOPPED, BRAKES NO LONGER WORKED, BRAKE PEDAL WAS SUDDENLY FLUSH WITH FLOOR. REARENDED A CAR, CAR STARTED JUMPING FORWARD. HAD TO USE THE EMERGENCY BRAKE TO STOP THE CAR. CAR WAS TOWED AFTER ACCIDENT, NOT BECAUSE IT WAS NOT DRIVABLE, IT WAS NOT DRIVABLE DUE TO BRAKE PROBLEM. REPAIR SHOP SAID BRAKES FAILED TO VACUUM HOSE BREAKING, NO WARNING PRIOR TO LOSING BRAKES. *TR

NHTSA ID
10621083
Incident
Aug 2, 2014
Mileage
121,000 mi
Engine
Filed Aug 5, 2014

THE CHECK ENGINE LIGHT (MIL) HAS HAD SEVERAL RECURRENCES. THE MASS AIR FLOW METER AND SENSOR HAVE BEEN REPLACED TWICE. ( 65,060 AND 107,894). THE INITIAL FAILURE WAS AT 36,512 MILES. 47,819 MILES, 65,060 MILES, 107,894 MILES,118,628 MILES AND IN JULY, 2014 AT 159,421 MILES, THERE WAS A WARRANTY EXTENSION LETTER IN NOVEMBER, 2003 THAT INCLUDED 2001 AUDI A-4 1.8T VEHICLES AND A VOLUNTARY EMISSIONS SERVICE ACTION 28F2/J1 IGNITION COIL INSPECTION/REPLACEMENT IN OCTOBER, 2009. SECONDARY ISSUE. UNABLE TO READ DASHBOARD DISPLAY. PIXELED. UNABLE TO READ SAFETY/VEHICLE NOTIFICATIONS. *TR

NHTSA ID
10619139
Incident
Jun 23, 2003
Mileage
36,512 mi
Interior & seats
Filed Dec 30, 2013

WHILE USING MY HEATER ON MY SEATS AND A PILLOW FOR ADDITIONAL BACK SUPPORT, I NOTICED SMOKE AND BURNING SMELL WHEN PULLING INTO MY DRIVEWAY. WHEN GETTING OUT OF MY CAR I NOTICED THAT MY PILLOW WAS LEAKING...AND UPON PULLING THE PILLOW OFF THE DRIVERS SEAT, IT WAS DAMAGED/BURNED THROUGH. I ALSO NOTICED THAT A BURNED HOLE THE SIZE OF A QUARTER IS NOW QUITE VISIBLE. WORRIED THAT THIS MAY CAUSE A CAR FIRE. *TR

NHTSA ID
10557722
Incident
Dec 30, 2013
Mileage
149,217 mi
Brakes
Filed Mar 15, 2012

TL* THE CONTACT OWNS A 2001 AUDI A4. THE CONTACT STATED THAT THE ABS WARNING LIGHT WAS ILLUMINATED ON THE INSTRUMENT PANEL AND THE BRAKE WARNING LIGHT WAS FLASHING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSTICS WHERE THE MECHANIC ADVISED THE CONTACT THAT THE ECU MODULE WOULD HAVE TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 112,000.

NHTSA ID
10451838
Incident
Feb 15, 2012
Mileage
112,000 mi

Manufacturer communications

A bulletin sent by a manufacturer to its dealers. Not a recall, and repairs are not necessarily free.

A0023742052680_4

EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

This bulletin provides information on the additional reporting requirements for safety related inquiries.

A0021482021205_6

EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE

This informational bulletin explains how to order replacement VIN plates, Safety Certification Labels, etc.

A0020362002047_1

EQUIPMENT:ELECTRICAL

This information bulletin contains instructions for technicans on how to ensure their TAC call goes smoothly.

AWC 19-05

ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT; EQUIPMENT:OTHER:LABELS

This communication is issued to inform dealers of updated shipping regulations related to lithium ion batteries.

AWC 19-04

EQUIPMENT

This communication is issued to remind dealers of the repair validation process for repair group 19. 2005-2019 A3, 1996-2019 A4, 2008-2019 A5, 1992-2019 A6, 2012-2019 A7, 1997-2019 A8, 2019 E-Tron, 2015-2019 Q3, 2010-2019 Q5, 2007-2019 Q7, 2019 Q8, 2000-2019 TT, 2008-2018 R8

A0019212052680_1

AIR BAGS; EQUIPMENT; SEAT BELTS

This bulletin contains instructions for additional reporting requirements for safety related inquiries (airbag/seatbelts, accidents, fire and overheat damage). 2008-2021A3, 2015-2021A3 Cabrio, 2005-2016 A3 Sportback, 1999-2021 A4, 2010-2021 A4 allroad, 1999-2012 A4 Avant, 2003-2009 A4 Cabrio, 2010-2021 A5 Cabrio, 2008-2021 A5 Coupe, 2018-2021 A5 Sportback, 1999-2021A6, 1999-2011A6 Avant, 2008-2020 A7, 1999-2021 A8, 2008-2019 e-tron, 2019-2021 e-tron quattro, 2015-2021 Q3, 2009-2021 Q5, 2007-2021 Q7, 2019 Q8, 2008-2020 R8 Coupe, 2011-2020 R8 Spyder, 2017-2019 RS3, 2007-2008 RS4, 2008 RS4 Cabrio, 2010-2021 RS5, 2010-2020 RS5 Cabrio, 2016-2018 RS6, 2016-2018 RS7, 2004-2012 S4, 2004-2009 S4 Cabrio, 2010-2021 S5 Cabrio, 2008-2021 S5 Coupe, 2018-2021 S5 Sportback, 2007-2021 S6, 2008-2020 S7, 2007-2009 S8, 2018-2021 SQ5, 2000-2021 TT Coupe, 2001-2021 TT Roadster, 2012 TT/RS Coupe

Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Compare model years

Complaint and recall counts across every year of this model

Audi A4 by model year
YearComplaintsRecallsInvestigationsIssue Index
2026000—
2025000—
2024200—
2023100043.4
2022630—
2021114065.1
20201273048.0
2019101059.4
2018441049.2
2017541040.6
2016110035.5
2015190046.4
2014310032.2
2013240044.8
2012190039.7
2011110027.6
2010640031.8
20091202047.1
20081754050.8
20071963046.5
20062953047.0
20052194049.4
20041893150.9
20032104049.2
20021812050.4
2001Viewing1313157.3
2000965358.5
19991907559.8
19982586559.0
1997988462.0
1996896356.1
1995120—

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers. Older model years have had longer for reports to accumulate.