2003 Mercedes-Benz S-Class
US · Large Cars
The 2003 Mercedes-Benz S-Class 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 Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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: 4.3L 8-cylinder, 4.3L 8-cylinder (GUZZLER), 5.0L 8-cylinder (GUZZLER), 5.0L 8-cylinder supercharged (GUZZLER), 5.5L 12-cylinder turbocharged (GUZZLER)
- Power
- Not available
- Torque
- Not available
- Transmission
- 5-speed automatic
- Drivetrain
- Varies by configuration: RWD, AWD
- Fuel
- Gasoline
- Seating
- Not available
Key Performance & Dimensions
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 4.3L 8-cylinder, 4.3L 8-cylinder (GUZZLER), 5.0L 8-cylinder (GUZZLER), 5.0L 8-cylinder supercharged (GUZZLER), 5.5L 12-cylinder turbocharged (GUZZLER) | |
| Displacement | 4.3 L to 5.5 L | |
| Cylinders | 8 to 12 | |
| 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 | 5 | |
| Drivetrain | Varies by configuration: RWD, AWD |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 18 mpg (13.1 L/100 km) to 14 mpg (16.8 L/100 km) | EPA fueleconomy.gov |
| City | 15 mpg (15.7 L/100 km) to 12 mpg (19.6 L/100 km) | |
| Highway | 22 mpg (10.7 L/100 km) to 17 mpg (13.8 L/100 km) |
Not available from our sources: Electric range, Battery capacity.
Trims and configurations
6 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.
Recalls
No recall campaigns were found in NHTSA data at the last check. Last checked October 18, 2026.
Data sources
- NHTSA vPIC · retrieved October 18, 2026 · US Government public data
- EPA fueleconomy.gov · retrieved October 18, 2026 · US Government public data
Source checked: October 18, 2026
Data verified: October 18, 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
- 2002 Mercedes-Benz S-Class
Gasoline
Varies by configuration: 4.3L 8-cylinder, 5.0L 8-cylinder (GUZZLER), 5.4L 8-cylinder (GUZZLER), 5.8L 12-cylinder (GUZZLER) · RWD
18 mpg (13.1 L/100 km) to 16 mpg (14.7 L/100 km) - 2004 Mercedes-Benz S-Class
Gasoline
Varies by configuration: 4.3L 8-cylinder, 5.0L 8-cylinder, 5.4L 8-cylinder supercharged, 5.5L 12-cylinder turbocharged · Varies by configuration: RWD, AWD
19 mpg (12.4 L/100 km) to 13 mpg (18.1 L/100 km)
Frequently asked questions
What engine does the 2003 Mercedes-Benz S-Class have?
Varies by configuration: 4.3L 8-cylinder, 4.3L 8-cylinder (GUZZLER), 5.0L 8-cylinder (GUZZLER), 5.0L 8-cylinder supercharged (GUZZLER), 5.5L 12-cylinder turbocharged (GUZZLER). Engines can differ by trim, so check the trim list below.
What is the fuel economy of the 2003 Mercedes-Benz S-Class?
Combined fuel economy is 18 mpg (13.1 L/100 km) to 14 mpg (16.8 L/100 km), as published by the source shown in the specification table.
Is the 2003 Mercedes-Benz S-Class front-wheel, rear-wheel or all-wheel drive?
Drivetrain: Varies by configuration: RWD, AWD.
Are there recalls for the 2003 Mercedes-Benz S-Class?
No recall campaigns were found in NHTSA data when we last checked on October 18, 2026. Recall status can change, so confirm with NHTSA or the manufacturer.