The worst 2018 Audi A8 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
Recalls 2
Structure: body: hood
- What is wrong
- Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S8 and A8 vehicles. The seal around the engine compartment may come loose and contact hot engine components.
- Risk
- If the seal contacts hot engine components, there could be an increased risk of a fire.
- Remedy
- Audi will notify owners, and dealers will install a retaining plate to prevent the engine compartment seal from loosening. The recall began September 4, 2020. Owners may contact Audi customer service at 1‑800‑253‑2834. Volkswagen's number for this recall is 51G6.
Recall number 20V397000 · Recall details
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
Technical service bulletins for the 2018 Audi A8 623
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 A8 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 |
|---|---|---|---|---|
| 3.0L 6‑cyl | AWD | 19 | 29 | 22 |
| 4.0L 8‑cyl | AWD | 16 | 26 | 19 |
Compare the 2018 Audi A8
Other model years
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Questions about the 2018 Audi A8
Is the 2018 Audi A8 reliable?
Owners have filed 0 complaints about the 2018 Audi A8.
What is the most common problem with the 2018 Audi A8?
There are not enough complaints to tell.
How many recalls does the 2018 Audi A8 have?
2 recalls, covering structure and fuel system, gasoline.
What gas mileage does the 2018 Audi A8 get?
Official estimates for the 2018 Audi A8 range from 19 to 22 mpg combined. The most efficient version (3.0L 6-cyl, AWD) gets 19 city and 29 highway.
VIN decoder
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