2018 Audi A3 problems and complaints

Owners have filed 44 complaints with NHTSA about the 2018 Audi A3. The most-reported areas: Air Bags (24), Fuel/Propulsion System (5), Electrical System (5).

Key takeaways

  • 44 owner complaints on file with NHTSA.
  • 1 involve a crash, 0 a fire, 2 reported injuries.
  • Complaints are unverified owner reports; recalls are confirmed defects.
Complaints by component
ComponentComplaintsShare
Air Bags2455%
Fuel/Propulsion System511%
Electrical System511%
Engine49%
Tires49%
Power Train49%
Unknown Or Other37%
Seats25%
Exterior Lighting25%
Fuel System12%
Gasoline12%
Back Over Prevention12%

One complaint can name several components, so shares add up to more than 100%.

NHTSA 5-Star crash ratings
VersionOverallFrontSideRollover
2018 Audi A3 C AWDNot ratedNot ratedNot ratedNot rated
2018 Audi A3 C FWDNot ratedNot ratedNot ratedNot rated
2018 Audi A3 4 DR FWD5/54/55/54/5
2018 Audi A3 4 DR AWD5/54/55/54/5

Latest complaints, as filed

Owner-written and unverified by NHTSA.

Engine - filed 2026-06-18

Coolant Water Pump and Thermostat -- Coolant temperature indicator gauge runs from normal to high after about 10-15 miles drive. Coolant levels are good and no signs of leak. Engine light is activated along with warning messages. Engine Warning: Drive System Malfunction. Please call for service. The vehicle goes i...

Tires - filed 2025-09-21

225/45-R18 DOT(17/22) On September 6, 2025, I purchased a 2018 Audi A3 (VIN [VIN], 56,634 miles) delivered by Carvana. Within days, I had the vehicle inspected at multiple independent repair shops. Each shop documented that all four tires showed dry rot and cracking and advised immediate replacement due to risk of tire...

Engine,fuel/Propulsion System - filed 2025-07-23

Hello, I dropped my car off at Audi and Dominion in San Antonio Texas on Thursday July 10th for a repair this was a recall for the fuel pump system in something in the mechatronic controls. They had my car until Saturday I was informed that the repairs were done under warranty. Then on Saturday July 19th as I began to ...

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More for the 2018 Audi A3

Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.