general problems of the 2018 Audi A3

Three problems related to engine and engine cooling have been reported for the 2018 Audi A3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Audi A3 based on all problems reported for the 2018 A3.

1 Engine And Engine Cooling problem

Failure Date: 07/10/2025

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 drive the vehicle a alert for my transmission malfunction appeared on my dashboard and I lost first gear. I had my car taken to Audi on dominion where I was informed by several service staff that this is a common malfunction after the last software update that was done the week prior and that it could take up to 48 hours to do the repair and recall warranty work on my vehicle. Audi on dominion has had my vehicle for 5 days and has not given me an answer as to know whether or not the repairs will be approved as this is covered under my extended warranty. My car was working perfectly fine until I was forced to take it in for this recall of which Audi has failed to provide a loaner vehicle or give accurate information as to whether or not the repairs will be covered. I have been informed that I will be responsible for the cost of the repairs. These repairs are only brought upon due to Audis forcing me to bring the car in for the recall repair as it would have voided out the rest of my vehicles warranty. As of today I am still without a vehicle and without an answer from Audi. I have tried reaching out to Audi of America without any response.

2 Engine And Engine Cooling problem

Failure Date: 05/01/2025

I was driving on the freeway at 60 mph when I received a warning code of a transmission problem. The code said the car was driveable but I should take it in for service. About 1-2 minutes after that the car lost all power. Unfortunately I broke down in the left lane in a construction zone without a shoulder. The state patrol had to temporarily shut down all three lanes of the highway to push me out of the traffic lane I was blocking. That was unsafe for me and for the state patrol and for the tow truck driver. The car was up to date on all recommended service, had been acting normally until the moment it failed, had not given me any warnings and is only 6 years old. I had the car towed to the dealer and the dealer reported that the mechatronic unit (transmission computer) failed. Replacing the mechatronic took a week and cost $5000.

3 Engine And Engine Cooling problem

Failure Date: 07/08/2023

The contact owns a 2018 Audi A3. The contact stated that while driving in a parking lot, the vehicle stalled. The battery had died and failed to restart. The driver jumped and started the vehicle. The battery was replaced. All the warning lights were illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the alternator needed to be replaced. The dealer informed her the part was backordered. The vehicle was not repaired. The manufacturer was called, but there was no response. The failure mileage was approximately 60. 000.


Other Engine And Engine Cooling related problems of the 2018 Audi A3

Engine And Engine Cooling problems
3
Service Engine Light On problems
1


A3 Service Bulletins
A3 Safety Recalls
A3 Defect Investigations