Problems · NHTSA complaints

2017 Audi A4 problems

Owners filed 83 complaints about the 2017 Audi A4 with NHTSA between Nov 2016 and Oct 2026. The most-cited component is air bags (26).

Complaints
83
Filed with NHTSA
Crashes
4
Reported by owners
Fires
0
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Air bags26
  2. Engine21
  3. Seats11
  4. Electrical system10
  5. Fuel/propulsion system5
  6. Seat belts5
  7. Service brakes5
  8. Power train4
  9. Steering4
  10. Wheels3
  11. Engine and engine cooling2
  12. Tires2
  13. Electronic stability control (esc)2
  14. Exterior lighting1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Oct 27, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20163
20178
20185
20199
20206
202120
202217
20237
20244
20252
20262

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Air bags

26 reports
“The contact owns a 2017 Audi A4. The contact stated while driving 50 MPH with the front driver's seat heater engaged, she felt a burning sensation as the seat was overheating. There was no warning light illuminated. The contact disengaged the seat heater. The contact stated that upon arriving at her destination and exiting the vehicle, she noticed that a portion of the seat's lumbar support had melted and created a hole. Additionally, the contact noticed that there was a hole in her coat. There was no warning light illuminated. There was no injury sustained. The contact was able to drive to her residence. The dealer was notified of the failure and informed the contact that there was no recall associated with the failure. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 21V874000 (Seats, Air Bags) as the VIN was included. The manufacturer was not notified of the failure. The failure mileage was approximately 83,867.”
Owner complaint to NHTSAFiled Jan 13, 2023Electrical system, Air bags, SeatsODI 11501571

Engine

21 reports
“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?”
Owner complaint to NHTSAFiled Sep 11, 2026EngineODI 11763714

Seats

11 reports1 related recall
“I have been experiencing something that might be related to safety recall 74E3, but i am not sure. I've been driving with my seatbelt on with no one at the passenger seat. But the seatbelt sign keeps showing up with the beeping sound, and the sign says Safety System Malfunction with front airbags off.... I called the Audi Fletcher Jones dealership in Irvine, California, the service team told me that they don't have the part to help fix this recall and there is nothing they can do. They also would not tell me when this recall can be fixed. I called a few other dealership in Orange County, California, seems none of the dealership has the parts to fix this. I have not yet encountered an accident, but felt risky driving the car now.”
Owner complaint to NHTSAFiled Apr 20, 2022Air bags, Seat belts, SeatsODI 11461481

Electrical system

10 reports1 crash
“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.”
Owner complaint to NHTSAFiled Aug 11, 2022Electrical system, Unknown or other, EngineODI 11478719

Fuel/propulsion system

5 reports1 crash
“I have been trying to register my vehicle in California for several months, however, in order to do so, I need the car to pass SMOG. Initially I was told that the issue was related to an emissions sensor and that I had to drive the vehicle a few more miles to get the sensor to register properly. This turned out not to be the case. A short time later, the fuel gauge completely stopped working. I took it to an authorized Audi repair shop that told me the issue was related to a the "Fuel Tank Sending Unit". That part was replaced by the repair shop, however, the issue persisted. The authorized repair shop is now telling me that it the entire tank needs to be replaced in order to fix the issue.. I have searched and this seems to be a common issue among Audi vehicles; the sensor stops working and the gauge stops responding. Audi seems to know that this is an issue. Can this possibly be investigated.”
Owner complaint to NHTSAFiled Dec 5, 2025Fuel/propulsion systemODI 11703360

Seat belts

5 reports
“I RECENTLY PURCHASED MY AUDI A4 AND IMMEDIATELY HAVE HAD ELECTRICAL ISSUES. JUST RECENTLY THE BACK WINDOW WILL RANDOMLY ROLL DOWN AND LAST NIGHT WHEN I STARTED MY CAR THE SAFETY SYSTEM LIGHT AND MESSAGE CAME ON. IT STATED SEE OWNERS MANUAL. I BEGAN TO DRIVE AND THE LIGHT TURNED OFF. AS I DROVE IT BEGAN TO BLINK ON AND OFF THEN FINALLY STAYING ON AND MAKING IT DISTRACTING TO DRIVE.”
Owner complaint to NHTSAFiled Mar 12, 2021Electrical system, Air bags, Seat beltsODI 11402580
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 27, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.