Audi is unable to correct the recall repairs despite several attempts by us to schedule. Advised parts are no longer available and were not available during 2 previous attempts to repair.
The worst 2018 Audi A6 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Engine7
- Fuel system4
- Airbags1
- Electrical1
- Transmission1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Engine7
- Fuel system4
- Airbags1
- Electrical1
- Transmission1
Recalls 2
Fuel system, gasoline: fuel injection system: fuel rail
- What is wrong
- Volkswagen Group of America, Inc. (Audi) is recalling certain 2016-2018 Q7, A6 and A7 vehicles, and 2015-2018 Audi A8 vehicles. The left and right fuel rails may leak fuel.
- Risk
- A fuel leak in the presence of an ignition source can increase risk of a fire.
- Remedy
- Audi has notified owners, and dealers will replace the left and right fuel rail, free of charge. The recall began February 28, 2019. Owners may contact Audi customer service at 1‑800‑253‑2834. Audi's number for this recall is 24DP.
Recall number 19V035000 · Recall details
Air bags: sensor: occupant classification
- What is wrong
- Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S6 and S7, 2012-2018 A7 and A6 Sedan, and 2014-2018 RS7 vehicles equipped with basic seats (with or without heating). Stress or wear of the body-sensing mat within the front passenger seat may cause the Passenger Occupant Detection System (PODS) control module to malfunction.
- Risk
- If the PODS module malfunctions, the front passenger air bag may not deploy properly in the event of a crash, increasing the risk of injury.
- Remedy
- Volkswagen will notify owners, and dealers will install a PODS system repair kit, free of charge. The recall began November 29, 2018. Owners may contact Audi customer service at 1‑800‑253‑2834. Volkswagen's number for this recall is 74D5.
Recall number 18V370000 · Recall details
Technical service bulletins for the 2018 Audi A6 709
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction...
- This bulletin provides informaiton on the use of the PICO-NVH tool (VAS 611 015).
- This bulletin proides service information when there is a prompt to take over the steering wheel (hands...
- This bulletin provides information when the starter battery is discharged or malfunctioning.
- This bulletin provides information to aid in diagnosing the vehicle locking system.
- This bulletin provides information when the engine is not runing smoothly; all gas engines.
- This bulletin provides information on VIN plates, Safety Certification labels, and ordering procedures.
- This bulletin provides infomraiton when the exterior lights have moisture accumulation.
- This bulletin provides information for reporting safety related information to the manufacturer.
- This bulletin states that technicians are required to report to the manufacturer when a vehicle has...
2018 Audi A6 fuel economy
Official EPA estimates in miles per gallon (MPGe for electric). Ranges cover trims that share the same engine.
| Engine | Drive | City | Highway | Combined |
|---|---|---|---|---|
| 2.0L 4‑cyl | FWD | 25 | 34 | 28 |
| 2.0L 4‑cyl | AWD | 22 | 31 | 26 |
| 3.0L 6‑cyl | AWD | 20 | 29 | 23 |
What 2018 Audi A6 owners say
Most recent owner complaints, unedited.
February 27, at approximately 1:20am my vehicle caught fire while parked in the driveway after sitting for about 9 hours. The fire originated near the gas tank. The fire department was called, there is a fire report being conducted. Audi was notified.
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.
The main water pump failed earlier than expected at 48000miles. Dealer mentioned that water pump should not fail so early
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.
The EPC light came on in my vehicle and I noticed I started to lose gas faster than normal. Took it to a shop to get diagnosed, they stated that my vehicle was under a recall (Recall #24DP). I called Audi and they said I do not fall under the warranty even though the website said 2016-2018 Audi A6 were under recall. They would not provide any help for me. My vehicle is showing all the signs of the recall. Sometimes the car will accelerate too fast and it is a risk for not only other drivers but me as well. It is just ironic that the same same problem for that recall is happening to my vehicle.
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.
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).
While driving at 60mph on the freeway, the glass sunroof on my 2018 Audi A6 randomly exploded/shattered. Glass shards flew into the cabin. There was no apparent “rock” or outside influence on the glass to cause it to shatter. The remaining glass remnants on the sunroof were angled up as if to suggest an explosion.
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.
Compare the 2018 Audi A6
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Questions about the 2018 Audi A6
Is the 2018 Audi A6 reliable?
Owners have filed 11 complaints about the 2018 Audi A6, fewer than a typical A6 model year.
What is the 2018 Audi A6 year score?
The 2018 Audi A6 scores 91 out of 100 (good). The score compares it with the other model years of the Audi A6: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2018 Audi A6?
Engine and cooling, with 7 complaints. Next is fuel system (4).
How many recalls does the 2018 Audi A6 have?
2 recalls, covering fuel system, gasoline and air bags.
What gas mileage does the 2018 Audi A6 get?
Official estimates for the 2018 Audi A6 range from 23 to 28 mpg combined. The most efficient version (2.0L 4-cyl, FWD) gets 25 city and 34 highway.
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