YearToAvoid

2017 Audi A4 Engine Problems

NHTSA lists 25 engine complaints for the 2017 Audi A4, 45% of all complaints filed for the year, with a median failure mileage of 28,000. Most describe coolant loss from the thermostat/water pump housing. No related recall exists for this issue.

Engine complaints
25
45% of 55
Crashes reported
1
Fires reported
0
Injuries reported
0
Median mileage
28,000 mi
Related recalls
0

Typical engine symptoms owners report

  • Coolant reservoir drops below the minimum line repeatedly, often refilled by the dealer without a leak found.
  • Coolant is traced to a leaking thermostat or water pump housing, sometimes with a coolant odor after driving.
  • Owners report a dashboard coolant warning followed by a feeling of the car losing power at highway speed.
  • Some owners describe an oil leak reaching the turbocharger area with no warning light on.
  • One complaint describes a mixed coolant/transmission fluid leak noted at two separate dealer visits.

When 2017 Audi A4 engine complaints were filed

First complaint Jun 26, 2020, latest Sep 11, 2026.

2017 Audi A4 engine complaints: complaints filed per month2Jun 2020Apr 2021Sep 2021Mar 2022Feb 2023Sep 2023May 2024
25 complaints filed with NHTSA from Jun 2020 to Sep 2026; peak Nov 2020 (2).

Engine recalls for the 2017 Audi A4

No safety recalls on record for this model year.

Engine complaints by A4 model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 201048 (75%)
  2. 20117 (64%)
  3. 201213 (68%)
  4. 20137 (29%)
  5. 201414 (44%)
  6. 201511 (58%)
  7. 20167 (64%)
  8. 201725 (45%)
  9. 20186 (14%)
  10. 20193 (30%)
  11. 20200 (0%)
  12. 20213 (27%)
  13. 20223 (50%)
  14. 20234 (40%)
  15. 20241 (50%)

Frequently asked questions

How many engine complaints does the 2017 Audi A4 have?
NHTSA lists 25 engine complaints for the 2017 Audi A4, which is 45% of the 55 total complaints filed for that model year.
What is the typical mileage when the engine problem shows up?
The median mileage at failure for these engine complaints is 28,000 miles.
Is there a recall for the 2017 Audi A4 engine coolant leak?
No. NHTSA shows no related recalls tied to this engine problem area for the 2017 Audi A4.
What exactly is leaking in these complaints?
Most sample complaints describe coolant leaking from the thermostat or water pump housing, with a few mentioning an oil leak near the turbocharger.
Were there any crashes or fires linked to this?
NHTSA data shows 1 crash and 0 fires among the 25 engine complaints for the 2017 Audi A4.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.