2009 Audi A5 Engine cooling Problems
- Complaints
- 3about this part
- Share
- 27%of 11 total for the year
- Median mileage
- 4,250miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2009 Audi A5, 27% of the 11 complaints for this model year. Where a mileage was given, the median is 4,250 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.
“The water pump broke causing the coolant to leak and the stop engine warning light to come on. This happened while I was driving. I was able to put some water in the empty coolant tank - but all of the liquid leaked through. Steam was coming from the engine bay. The dealer advised that I put water in the coolant tank and drive to the facility as soon as possible. (it was about two miles away.) they diagnosed the problem as a failed water pump, causing the coolant to leak due to the pressure. Apparently five other vehicles (Audi A5 and q5) were brought in over the past two weeks. …”
NHTSA complaint #10300371, filed 2010-01, 4,500 miles“The vehicle developed an engine surge when starting cold (heated garage 45) and moving approx 50 to 75 feet. The RPM surges from 500 to 1800rpm several times and will occasionally die. This seems to happen with various brands of premium fuel. The dealer claims they have added a fuel conditioner, replaced the high pressure fuel pump. Replaced the spark plugs and reprogrammed the engine computer. The vehicle still surges at various times. It has died after leaving an on street parking spot in traffic. …”
NHTSA complaint #10380268, filed 2011-01, 4,000 miles“Water pump coolant campaign my auto body shop said my car is leaking coolant and theres a campaign out on the water pump. I'm asking if you could push the campaign through and recall the water pumps to fix this issue as I'm afraid my car will break down.”
NHTSA complaint #10644665, filed 2014-10Related service bulletins
- 10242903Sep 7, 2023This bulletin provides information on professional noise analysis with the VAS 611 015 PICO NVH Tool.
- 10238273Jun 15, 2023This bulletin provides information on checking for debris when replacing an engine.
- 10236376May 8, 2023This bulletin provides information for when the customer advises that there is cracking, grinding, rattling, humming, whining, or similar interference.
- 10233771Mar 31, 2023This bulletin provides information on the discontinuation and mixing of Audi-approved engine coolants.
- 10231590Feb 6, 2023This bulletin contains instructions for when to add gasoline additives for cleaning the injectors.
- 10208894Mar 3, 2022This bulletin contains instructions for using the UV additive to find engine oil leaks.
- 10207179Jan 28, 2022This bulletin contains instructions for identifying and mixing factory fill coolants.
- 10207170Jan 10, 2022This bulletin contains instructions for identifying and mixing factory fill coolants.
- 10228325Sep 20, 2021DTC P0234 (Turbo/Super Charger Overboost Condition) is stored in the engine control module, J623 (address word 01). No other DTCs are stored. Technical Background DTC P0234 can…
- 10225004Sep 20, 2021DTC P0234 (Turbo/Super Charger Overboost Condition) is stored in the engine control module, J623 (address word 01). No other DTCs are stored. Technical Background DTC P0234 can…
Engine cooling: other model years
Other parts of the 2009 Audi A5
3 complaintsBrakes
2 complaintsElectrical system
2 complaintsFuel system
2 complaintsTransmission and drivetrain
2 complaintsAir bags
1 complaintsEngine
1 complaintsSteering
1 complaints
← All problems reported for the 2009 Audi A5
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