2001 Audi A4 Problems, Complaints & Recalls

Source: NHTSA · Updated Mar 2, 2026 · 131 owner complaints analyzed

Compared with other A4 years
Far more complaints than other years 10th of 31 for complaints
NHTSA crash rating
Not rated

Owners have filed 131 complaints with NHTSA about the 2001 Audi A4. That ranks 10th out of 31 A4 model years for complaints. The most reported problem area is electrical system (35 complaints, 27%), typically at around 43,570 miles. Complaints mention 5 crashes, 9 fires, 1 injury. There is 1 safety recall covering this model year. NHTSA has opened 1 defect investigation involving it.

Audi A4
Audi A4 B9 in Stuttgart-Vaihingen. Representative photo; appearance varies by model year. Photo: Alexander-93, CC BY-SA 4.0, via Wikimedia Commons.

Complaints are unverified owner reports and are not adjusted for sales volume.

Compare with another car

Most common 2001 Audi A4 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Electrical System35 · ~43,570 mi
Engine and Engine Cooling31 · ~63,521 mi
Service Brakes, Hydraulic28 · ~63,650 mi
Air Bags11 · ~80,000 mi
Power Train5 · ~65,000 mi
Unknown or Other4 · ~80,369 mi
Exterior Lighting3 · ~95,007 mi
Steering3 · ~69,210 mi
Suspension3 · ~53,153 mi
Visibility3 · ~41,000 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Electrical System3527%43,570——
Engine and Engine Cooling3124%63,521——
Service Brakes, Hydraulic2821%63,650——
Air Bags118%80,000——
Power Train54%65,000——
Unknown or Other43%80,369——
Exterior Lighting32%95,007——
Steering32%69,210——
Suspension32%53,153——
Visibility32%41,000——
Engine22%101,756——
Equipment22%12,682——
Fuel System, Other22%53,845——
Seats22%149,217——
Service Brakes, Air22%62,500——
Service Brakes, Electric22%46,200——
Tires22%———
Fuel System, Gasoline11%70,000——
Latches/locks/linkages11%———
Service Brakes11%121,000——
Structure11%41,000——
Vehicle Speed Control11%40,000——

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2003, with 26 complaints
2000: 1200012001: 992002: 122002122003: 26262004: 122004122005: 15152006: 4200642007: 11112008: 9200892009: 882010: 102010102011: 442012: 3201232013: 112014: 2201422016: 112019: 1201912022: 112026: 120261

n = 131 complaints · Source: NHTSA

2001 Audi A4 recalls (1)

Tap a recall to see the problem, the risk and the fix.

Air bags:frontal:driver side:inflator moduleJun 23, 2021 · NHTSA campaign 21V470000 · 62,812 vehicles

Problem: 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.

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.

Fix: 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.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

NHTSA defect investigations

  • Brake and clutch pedal bracket (PE02008) — opened Jan 23, 2002, closed Jul 12, 2002.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

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…

Air Bags · received Mar 2, 2026 · NHTSA complaint 11721510

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…

Air Bags · received Mar 4, 2022 · NHTSA complaint 11455179

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…

Engine · received May 29, 2019 · NHTSA complaint 11210749

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…

Air Bags · received Aug 18, 2016 · NHTSA complaint 10896796

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…

Service Brakes · received Aug 9, 2014 · NHTSA complaint 10621083

Other Audi A4 years

← 2000 A4 · 2002 A4 →

See all Audi A4 problems by year, every Audi model, or the Audi VIN decoder.

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Frequently asked questions

What are the most common problems with the 2001 Audi A4?

Owners most often report electrical system, engine and engine cooling, service brakes, hydraulic problems. The top one, electrical system, accounts for 35 complaints.

Was there a recall on the 2001 Audi A4?

Yes, 1 safety recall. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2001 Audi A4 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other A4 model years, the 2001 has far more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.