2005 Audi TT Engine cooling Problems
- Complaints
- 2about this part
- Share
- 18%of 11 total for the year
- Median mileage
- 20,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2005 Audi TT, 18% of the 11 complaints for this model year. Where a mileage was given, the median is 20,000 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 2005 Audi TT quattro roadster, purchased new in 2005. Have had dashboard instrument cluster failure - twice - in 2 years! Fuel gauge fluctuations, coolant sensor malfunction (had to replace coolant sensor to the tune of over $400! Just two months ago), radio turns itself on after I've exited the vehicle, etc. First time instrument cluster replaced under warranty. Car now has 50,000 miles and out of warranty. Additionally, intermittent headlight failure. Idiot light comes on, left front headlight out. Turn off lights, 5 - 10 seconds, turn back on, everything is fine. …”
NHTSA complaint #10320526, filed 2010-03“The contact owns a 2005 Audi TT. After starting the vehicle it would idle roughly. The vehicle was taken to a dealership and a technician stated that it was a common failure for her model type. She emailed the manufacturer but did not receive a response. The current mileage was approximately 23,000. The failure mileage was approximately 20,000.”
NHTSA complaint #10293391, filed 2009-11, 20,000 milesRelated service bulletins
- 10181059Oct 5, 2020This bulletin contains instructions for using the UV additive to find engine oil leaks.
- 10177406Jul 13, 2020This informational bulletin states to not replace parts for the beveling groove as it is normal.
- 10176873Jun 25, 2020This bulletin contains instructions for identifying and mixing factory fill coolants.
- 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…
Engine cooling: other model years
Other parts of the 2005 Audi TT
3 complaintsElectrical system
3 complaintsExterior lighting
3 complaintsTransmission and drivetrain
3 complaintsEngine
1 complaintsSeats
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2005 Audi TT
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