2018 Mercedes-Benz G-Class
US · SUV · Standard Sport Utility Vehicle 4WD
The 2018 Mercedes-Benz G-Class is listed in the US market as a suv 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 Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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: 5.5L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 4.0L 8-cylinder turbocharged (SIDI)
- Power
- 577 hp (430 kW)
- Torque
- 627 lb-ft (850 Nm)
- Transmission
- 7-speed automatic
- Drivetrain
- 4WD
- Fuel
- Gasoline
- Economy
- 11 mpg (21.4 L/100 km) to 13 mpg (18.1 L/100 km) combined
- Seating
- 5 seats
Key Performance & Dimensions
Engine
| Specification | Value | Source |
|---|---|---|
| Engine | Varies by configuration: 5.5L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 4.0L 8-cylinder turbocharged (SIDI) | |
| Displacement | 4.0 L to 6.0 L | |
| Cylinders | 8 to 12 | |
| Aspiration | Turbocharged | |
| Power | 577 hp (430 kW) | |
| Torque | 627 lb-ft (850 Nm) | |
| Fuel type | Gasoline | EPA fueleconomy.gov |
Performance
| Specification | Value | Source |
|---|---|---|
| 0–100 km/h | 4.3 s | |
| Top speed | 149 mph (240 km/h) | |
| Towing capacity | 7,716 lb (3,500 kg) |
Transmission and drivetrain
| Specification | Value | Source |
|---|---|---|
| Transmission | Automatic | EPA fueleconomy.gov |
| Gears | 7 | |
| Drivetrain | 4WD | EPA fueleconomy.gov |
Dimensions
| Specification | Value | Source |
|---|---|---|
| Length | 191.9 in (4,873 mm) | |
| Width | 78.1 in (1,984 mm) | |
| Height | 77.4 in (1,966 mm) | |
| Wheelbase | 113.8 in (2,890 mm) | |
| Ground clearance | 9.5 in (241 mm) |
Weight
| Specification | Value | Source |
|---|---|---|
| Curb weight | 5,644 lb (2,560 kg) |
Fuel economy and range
| Specification | Value | Source |
|---|---|---|
| Combined | 11 mpg (21.4 L/100 km) to 13 mpg (18.1 L/100 km) | EPA fueleconomy.gov |
| City | 11 mpg (21.4 L/100 km) to 13 mpg (18.1 L/100 km) | |
| Highway | 11 mpg (21.4 L/100 km) to 15 mpg (15.7 L/100 km) |
Capacity
| Specification | Value | Source |
|---|---|---|
| Seats | 5 | |
| Doors | 5 |
Our sources do not publish these for this vehicle: Payload, Gross vehicle weight rating, Electric range, Battery capacity, Fuel tank, Cargo volume. We leave them out instead of estimating.
Trims and configurations
4 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 November 10, 2026.
Data sources
- EPA fueleconomy.gov · retrieved November 5, 2026 · US Government public data
- NHTSA vPIC · retrieved October 12, 2026 · US Government public data
Source checked: November 5, 2026
Data verified: November 5, 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.
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Frequently asked questions
What engine does the 2018 Mercedes-Benz G-Class have?
Varies by configuration: 5.5L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 4.0L 8-cylinder turbocharged (SIDI). Engines can differ by trim, so check the trim list below.
How much horsepower does the 2018 Mercedes-Benz G-Class have?
577 hp (430 kW), as listed by our sources.
What is the fuel economy of the 2018 Mercedes-Benz G-Class?
Combined fuel economy is 11 mpg (21.4 L/100 km) to 13 mpg (18.1 L/100 km), as published by the source shown in the specification table.
Is the 2018 Mercedes-Benz G-Class front-wheel, rear-wheel or all-wheel drive?
Drivetrain: 4WD.
How many seats does the 2018 Mercedes-Benz G-Class have?
5 seats.
How long is the 2018 Mercedes-Benz G-Class?
191.9 in (4,873 mm).
Are there recalls for the 2018 Mercedes-Benz G-Class?
No recall campaigns were found in NHTSA data when we last checked on November 10, 2026. Recall status can change, so confirm with NHTSA or the manufacturer.