2000 Audi A4 Engine cooling Problems
- Complaints
- 11about this part
- Share
- 11%of 96 total for the year
- Median mileage
- 78,484miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 11 complaints about the engine cooling of the 2000 Audi A4, 11% of the 96 complaints for this model year. Where a mileage was given, the median is 78,484 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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.”
NHTSA complaint #10276439, filed 2009-07, 159,000 miles“I am an owner of a 2000 A4 1.8t Audi. The owners manual states that the timing belt should be replaced at 105,000 miles. I have 94,000 miles on my vehicle and the tensioner failed when I was driving on the highway at a speed of 60 MPH. Whenever I started investigating my options for repair of the vehicle I was informed that Audi has experienced numerous failures due to a problem with this tensioner. …”
NHTSA complaint #10137186, filed 2005-09, 94,067 miles“I am an owner of a 2000 A4 1.8t Audi. The owner's manual states that the timing belt should be replaced at 105,000 miles and also states that it is a long-lasting belt. I have 95,000 miles on my vehicle and the tensioner and damper failed when I was driving on the highway at a speed of 65 MPH; the car just stopped, and I had to navigate through four lanes of heavy traffic to the shoulder in a car with no power- scary and dangerous! The car had to be towed to the mechanic's, and since I was 5 hours away from home, I had to rent a car for the next 12 days while it was being repaired. …”
NHTSA complaint #10174749, filed 2006-11, 95,000 miles“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. …”
NHTSA complaint #10146786, filed 2006-01, 40,121 miles“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.”
NHTSA complaint #10532967, filed 2013-07Related service bulletins
- 10123764Sep 8, 2015Supersedes Technical Service Bulletin Group 19 number 15-61 dated July 7, 2015. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have been…
- 10128399Jul 7, 2015Supersedes Technical Service Bulletin Group 19 number 14-50 dated June 20, 2014. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have…
- 10119945Mar 17, 2015Supersedes Technical Service Bulletin Group 10 number 13-10 dated September 5, 2013. Prior to engine replacement, any debris lodged in transferred assemblies must be removed. If…
- 10119946Mar 6, 2015Supersedes Technical Service Bulletin Group 17 number 13-35 dated January 9, 2013. This bulletin lists engine oils that meet Audi oil quality standards (VW 501 01, 502 00, 505…
- 10120682Feb 13, 2015Supersedes Technical Service Bulletin Group 01 number 13-69 dated February 14, 2013. Noises and inconsistent engine operation after cold start during the catalyst heating phase…
- 10231130Jun 30, 2014Idenifying and mixing factory fill engine coolants
- 10122415Jun 20, 2014Supersedes Technical Service Bulletin Group 19 number 13-41 dated June 20, 2013. Discontinuation and mixing of Audi-approved engine coolants. G11, G12, and G12+ coolants have…
- 10210680Jun 3, 2014As the sump pan gasket settles, the torque of the bolts decreases and the seal may leak. Automatic transmission fluid is leaking at the sump pan gasket.
- 10121324Sep 5, 2013Supersedes Technical Service Bulletin Group 10 number 10-02 dated September 14, 2010. Prior to engine replacement, any debris lodged in transferred assemblies must be removed. If…
- 10216662Jun 20, 2013Discontinuation and mixing of Audi-approved engine coolants.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 1 | 17% |
| 2018 | 1 | 2% |
| 2017 | 2 | 4% |
| 2015 | 1 | 5% |
| 2014 | 1 | 3% |
| 2013 | 1 | 4% |
| 2010 | 9 | 14% |
| 2009 | 5 | 4% |
| 2008 | 4 | 2% |
| 2007 | 12 | 6% |
| 2006 | 6 | 2% |
| 2005 | 8 | 4% |
| 2004 | 18 | 10% |
| 2003 | 17 | 8% |
| 2002 | 28 | 15% |
| 2001 | 31 | 24% |
| 2000 | 11 | 11% |
| 1999 | 28 | 15% |
| 1998 | 28 | 11% |
| 1997 | 12 | 12% |
| 1996 | 5 | 6% |
Other parts of the 2000 Audi A4
51 complaintsElectrical system
11 complaintsTransmission and drivetrain
8 complaintsAir bags
6 complaintsVisibility (wipers, defrost, mirrors)
5 complaintsSuspension
3 complaintsEquipment
2 complaintsExterior lighting
2 complaintsOther or unknown
2 complaintsVehicle speed control
2 complaintsElectronic stability control
1 complaintsFuel system
1 complaints
← All problems reported for the 2000 Audi A4
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology