2018 Audi A8
US · Large Cars
The 2018 Audi A8 is listed in the US market with gasoline power. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.
- Engine
- Varies by configuration: 3.0L 6-cylinder supercharged (SIDI), 4.0L 8-cylinder turbocharged (SIDI)
- Power
- Not available
- Torque
- Not available
- Transmission
- 8-speed automatic
- Drivetrain
- AWD
- Fuel
- Gasoline
- Seating
- Not available
Key Performance & Dimensions
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 3.0L 6-cylinder supercharged (SIDI), 4.0L 8-cylinder turbocharged (SIDI) | |
| Displacement | 3.0 L to 4.0 L | |
| Cylinders | 6 to 8 | |
| Aspiration | Varies by configuration: Supercharged, Turbocharged | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Not available from our sources: Power, Torque.
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 8 | |
| Drivetrain | AWD | EPA fueleconomy.gov |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 22 mpg (10.7 L/100 km) to 19 mpg (12.4 L/100 km) | EPA fueleconomy.gov |
| City | 19 mpg (12.4 L/100 km) to 16 mpg (14.7 L/100 km) | |
| Highway | 29 mpg (8.1 L/100 km) to 26 mpg (9.0 L/100 km) |
Not available from our sources: Electric range, Battery capacity.
Trims and configurations
2 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
NHTSA lists 2 recall campaigns for this model year. Last checked October 12, 2026.
20V397000: STRUCTURE:BODY:HOOD
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.
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…
Reported July 7, 2020. View on NHTSA
19V035000: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL
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.
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.
Reported January 16, 2019. View on NHTSA
Data sources
- EPA fueleconomy.gov · retrieved October 12, 2026 · US Government public data
- NHTSA vPIC · retrieved October 12, 2026 · US Government public data
Source checked: October 12, 2026
Data verified: October 12, 2026
Specifications can vary by market, trim, configuration and production date. Confirm with the manufacturer before buying parts or making safety decisions. Report an error.
Related vehicles
- 2017 Audi A8
Gasoline
Varies by configuration: 3.0L 6-cylinder supercharged (SIDI), 4.0L 8-cylinder turbocharged (SIDI) · AWD
22 mpg (10.7 L/100 km) - 2019 Audi A8
Hybrid
Varies by configuration: 3.0L 6-cylinder turbocharged (SIDI; Mild Hybrid), 4.0L 8-cylinder turbocharged (SIDI; Mild Hybrid) · AWD
22 mpg (10.7 L/100 km) to 18 mpg (13.1 L/100 km)
Frequently asked questions
What engine does the 2018 Audi A8 have?
Varies by configuration: 3.0L 6-cylinder supercharged (SIDI), 4.0L 8-cylinder turbocharged (SIDI). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2018 Audi A8?
Combined fuel economy is 22 mpg (10.7 L/100 km) to 19 mpg (12.4 L/100 km), as published by the source shown in the specification table.
Is the 2018 Audi A8 front-wheel, rear-wheel or all-wheel drive?
Drivetrain: AWD.
Are there recalls for the 2018 Audi A8?
NHTSA lists 2 recall campaigns for this model year (last checked October 12, 2026). Details are in the Recalls section.