2017 Audi A4 Engine Problems
- Complaints
- 22about this part
- Share
- 39%of 56 total for the year
- Median mileage
- 28,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 22 complaints about the engine of the 2017 Audi A4, 39% of the 56 complaints for this model year. Where a mileage was given, the median is 28,000 miles.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My vehicle is leaking coolant. Every 8-10k miles it goes below normal level in reservoir . There is a distinct odor of coolant each time I get out of the vehicle. I have had Audi look at it 5 times. They confirm the coolant levels are low and they refill it saying they can't find a leak. I am concern that this is a fire hazard.”
NHTSA complaint #11394694, filed 2021-02, 23,000 miles“my initial water pump from Audi was replaced via recall. then I recently changed the thermostat hose and my water pump started leaking again. can you please look into these faulty water pumps?”
NHTSA complaint #11763714, filed 2026-09“While driving on the highway, there was a message that flashed on the dashboard about the coolant system, within a couple minutes, I felt like the car was shutting down while going 65 miles per hour. So I pulled over on the shoulder of the Turnpike Southbound in Miami. This cased a great safety problem for me, as this happened while I was driving on the highway then I had to be on the right shoulder of the highway and had to call for road ranger. …”
NHTSA complaint #11420291, filed 2021-06“Engine light on Dealership found a rodent nest in the engine space in the car. Dealership considers that fluids used to coat Audi engine wiring attract rodents. Dealership considers this to be a health and safety issue. Dealership considers it essential to replace the Audi air filter. Dealership is checking wires to assess any gnawed damage. I need the engine to be power-washed and the nest area treated w/bleaching agents. I do not have the total estimate on this but it will be greater than $1,000.”
NHTSA complaint #11478719, filed 2022-08“My 2017 Audi A4 Quattro is now five years old. There is only 26,000 miles on the vehicle. Mostly local miles. I noticed drops of red fluid on the garage floor under the engine compartment. My mechanic investigated and found the issue to be leaking coolant from the thermostat/pump housing. It is obvious that the leak has been occurring for awhile as there is dried white residue all around this area. The engine cover under the engine compartment was all wet with coolant. The coolant reservoir was also low. …”
NHTSA complaint #11457993, filed 2022-03Related service bulletins
- 11034657Jun 26, 2026This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
- 11034728Jun 10, 2026This bulletin provides informaiton when the engine is not running smoothly, misfiring.
- 11034656Jun 4, 2026This bulletin provides information when DTC U140A00 Terminal 30 is stored in the ECM.
- 11029368Feb 20, 2026This bulletin provides information on the use of the Audi frequencly analysis app, and where the application can be downloaded.
- 11029367Feb 20, 2026This bulletin provides information on VIN Plates, Safety Certification labels, and the ordering procedures.
- 11028398Jan 14, 2026This bulletin provides information regarding UV leak additive for finding oil leaks.
- 11027356Dec 11, 2025This bulletin provides information when there is increased oil consumption; >0.5ltr/1000 km.
- 11026206Nov 25, 2025This special notice is to inform dealers to return the parts listed and only order the successor parts going forward.
- 11018973May 28, 2025This bulletin provides information when DTC U14A00 Terminal 30 is stored in the ECM.
- 11016532Mar 12, 2025This bulletin provides informatin when the engine does not run smoothly at idling speeds.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 3 | 30% |
| 2022 | 2 | 33% |
| 2021 | 1 | 9% |
| 2019 | 2 | 20% |
| 2018 | 5 | 11% |
| 2017 | 22 | 39% |
| 2016 | 7 | 64% |
| 2015 | 10 | 53% |
| 2014 | 13 | 41% |
| 2013 | 6 | 25% |
| 2012 | 13 | 68% |
| 2011 | 7 | 64% |
| 2010 | 37 | 58% |
| 2009 | 44 | 37% |
| 2008 | 13 | 7% |
| 2007 | 17 | 9% |
| 2006 | 15 | 5% |
| 2005 | 10 | 5% |
| 2004 | 7 | 4% |
| 2003 | 7 | 3% |
| 2002 | 5 | 3% |
| 2001 | 2 | 2% |
| 1998 | 2 | 1% |
Other parts of the 2017 Audi A4
13 complaintsOther or unknown
10 complaintsElectrical system
6 complaintsFuel system
6 complaintsTransmission and drivetrain
4 complaintsSeats
3 complaintsSteering
3 complaintsEngine cooling
2 complaintsSeat belts
2 complaintsBrakes
1 complaintsExterior lighting
1 complaintsSuspension
1 complaints
← All problems reported for the 2017 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