2018 Audi A6 3.0T diagnosed a coolant leak due to water pump failure at less than 43k miles on March 27, 2024. In July 2023 (at less than 39k miles), the vehicle's thermostat was replaced due to a coolant leak. These are substantial failures in terms of risk to engine damage and cost to consumer, within a time and mileage period where a consumer should not expect these issues.

- Jacksonville , FL, USA

The main water pump failed earlier than expected at 48000miles. Dealer mentioned that water pump should not fail so early

- Minneapolis , MN, USA

Coolant leak, warning light signified an issue with the cooling system. Took vehicle to Audi dealership service department; they confirmed there is a big coolant leak with the coolant pump and thermostat. Vehicle inspected by Audi Sewell dealership for repairs. Symptoms appeared approximately 11/19/23, 2 weeks days prior to taking into the dealership. I had the oil changed at a non-Audi supplier); I informed service technician coolant warning light was on and service tech informed me vehicle was low on coolant. He replaced oil and topped off coolant on 11/19. Service light was no longer on; 2 weeks after the light came on again so i reported to Audi on 12/1/23 for repairs. Audi confirmed lose of containment of coolant.

- Sugar Land, TX, USA

The contact owns a 2018 Audi A6. The contact stated that the EPC and engine warning lights were illuminated. The vehicle was taken to an independent mechanic and the contact was notified of an unstated recall. The contact called the local dealer and was informed that the repair was not covered under recall. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and the contact was informed about a buyback, but no additional assistance was provided. The failure mileage was approximately 52,000.

- Spring, TX, USA

2018 Audi A6 3.0T, VIN [XXX] At 38,637 miles, Audi dealership diagnosed that vehicle requires water pump replacement due to water pump failure, causing vehicle to leak coolant. The vehicle has previously displayed a low coolant warning light prior to water pump failure diagnosis. My research has found that in October 2022, a class action suit was filed for over water pump defects. See: https://www.classaction.org/news/audi-defective-water-pump-class-action-includes-2021-2022-vehicle-models-with-3.0t-engines The suit looks to cover all persons or entities in the United States who are current or former owners and/or lessees of a 2013-2022 Audi S4, Q5, S5, SQ5, A6, A7, Q7 and A8 vehicles with a 3.0T engine. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Jacksonville, FL, USA

At slow speed and particularly when starting from stationary, such as stopped to wait to turn left, the car stalls for 2-3 seconds, suggesting that it isn't getting fuel. Once moving, the car runs fine. I have taken the car to the Audi dealer twice. The problem remains. The car only has 14,800 miles on it. It's been happening since I bought the car in March, 2020.

- Baltimore, MD, USA

When making a U-turn after completing the turn portion the car fails to accelerate. It is as if the vehicle can't figure out what it is supposed to do. The failure is for a short time but absolutely nothing happens when the accelerator is pushed then suddenly the vehicle again accelerates. This has happened to me 4 times in the past year. Discussed with dealer and was told that is "the nature of the car" and the service tech said it usually happened to him when turning in an intersection and he would "floor it" and the car would jump.

- Mount Dora, FL, USA