Problems · NHTSA complaints
2000 Audi A4 problems
Owners filed 96 complaints about the 2000 Audi A4 with NHTSA between Mar 2000 and Jun 2021. The most-cited component is service brakes, hydraulic (47).
Complaints
96
Filed with NHTSA
Crashes
5
Reported by owners
Fires
2
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Service brakes, hydraulic47
- Electrical system11
- Engine and engine cooling11
- Power train8
- Air bags6
- Visibility5
- Equipment3
- Service brakes, electric3
- Suspension3
- Exterior lighting2
- Vehicle speed control2
- Service brakes1
- Tires1
- Electronic stability control (esc)1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 27, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
14
8
2
18
11
16
7
1
4
5
2
2
1
2
0
0
1
0
0
0
1
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2000 | 14 |
| 2001 | 8 |
| 2002 | 2 |
| 2003 | 18 |
| 2004 | 11 |
| 2005 | 16 |
| 2006 | 7 |
| 2007 | 1 |
| 2008 | 4 |
| 2009 | 5 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 0 |
| 2015 | 0 |
| 2016 | 1 |
| 2017 | 0 |
| 2018 | 0 |
| 2019 | 0 |
| 2020 | 1 |
| 2021 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Service brakes, hydraulic
47 reports2 crashes1 fire
“THE ABS AND BRAKE LIGHT IS FLASHING ON MY DASH BOARD. THE REPAIR SHOP SAYS THAT THE ABS CONTROL MODULE NEEDS TO BE REPLACED. THE COST IS ABOUT $1000! MY CAR HAS ABOUT 120,000 MILES ON IT. *TR”
Electrical system
11 reports1 fire
“THE LCD DRIVER INFORMATION CENTER IS PIXELATED, THIS NORMALLY WOULDN'T NORMALLY BE A HUGE PROBLEM BUT THIS SCREEN INFORMS THE DRIVER OF HIGH ENGINE TEMPERATURES, LOW OIL, LOW COOLANT, ETC. I'M UNABLE TO READ THE SCREEN AND HAVE NO IDEA WHAT IT IS ATTEMPTING TO TELL ME WHEN MY CAR MAKES A VERY HIGH PITCHED BEEP TO INFORM ME THERE IS A PROBLEM. I'VE ALSO DISCOVERED THAT THIS IS AN EXTREMELY COMMON PROBLEM WITH CARS OF THIS MODEL YEAR AND SEVERAL OTHER MODEL YEARS. *TR”
Engine and engine cooling
11 reports1 related recall
“I HAVE A 2000 AUDI A4. THERE WAS A LETTER THAT WAS MAILED TO ME EXPLAINING THE DEFECT WITH THE VEHICLE 2 MONTHS AFTER THE INCIDENT HAPPENED. THE TIMING BELT ON MY VEHICLE BROKE RESULTING IN SEVERE ENGINE DAMAGE. THE MANUFACTURER REFUSES TO PAY FOR THE DAMAGE OR FIX IT. *TR”
Power train
8 reports1 crash
“DT: THE CONTACT STATED ON APRIL 5, 2005 ENGINE STARTED MAKING LOUD NOISES. THE CONTACT TOOK THE VEHICLE TO A LOCAL DEALERSHIP FOR REGULAR SERVICE AND INSPECTION, AND THE DEALER FOUND THE HEAD GASKETS, MASS FLOW SENSORS, VACUUM HOSES, INTAKE MANIFOLD GASKETS, AND THE THROTTLE BODY NEEDED TO BE REPLACED. REPAIRS WERE MADE. FOUR MONTHS LATER THE VEHICLE STARTED MAKING LOUD NOISES AGAIN. THE CONTACT WAITED ANOTHER FOUR MONTHS BEFORE TAKING THE VEHICLE BACK TO THE DEALER ON DECEMBER 29, 2005 TO HAVE IT SERVICED A SECOND TIME. THIS TIME THE DEALER DISCOVERED THE TIE ROD ENDS, CHAIN TENSIONER AND THE OIL COOLANT LINES NEEDED TO BE REPLACED. THERE WERE NEVER ANY WARNING INDICATORS OTHER THAN THE NOISE INDICATING A PROBLEM. NO ADDITIONAL REPAIRS WERE MADE. *AK UPDATED 1/25/2006 - *NM”
Air bags
6 reports1 crash2 related recalls
“Takata recall. The contact owns a 2000 Audi A4. The contact received notification of NHTSA Campaign Number: 20V056000 (Air Bags) however, the part to do the recall repair was not yet available. The contact took the vehicle to the local dealer and was confirmed that the part was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms part not available.”
Visibility
5 reports
“AS SOON AS MY CAR HIT 50,000 (THE WARRANTY EXPIRATION) NUMEROUS PROBLEMS MYSTERIOUSLY APPEARED: THE MOTOR FOR THE REAR PASSENGER WINDOW FAILED ($200 TO REPAIR), THE DRIVE SHAFT STARTED SLIPPING ($1,500) AND THE TRUNK LATCH FAILED TO CLOSE SECURELY ($150). *AK”
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 27, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.