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2018 Mercedes-Benz S-Class

US · Large Cars

The 2018 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 Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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: 4.0L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 3.0L 6-cylinder turbocharged (SIDI)
Transmission
Automatic
Drivetrain
Varies by configuration: 4WD, RWD, FWD
Fuel
Gasoline
Economy
16 mpg (14.7 L/100 km) to 22 mpg (10.7 L/100 km) combined
Generic outline for this body type. An illustration, not a photograph.
Specifications at a Glance

Key Figures

Units:
Engine / Powertrain
4.0L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 3.0L 6-cylinder turbocharged (SIDI)
Combined Economy
16 mpg (14.7 L/100 km) to 22 mpg (10.7 L/100 km) combined
Drivetrain
4WD, RWD, FWD
Transmission
Automatic
Market: US·Switch units to convert the figures shown.
Compare 2018 Mercedes-Benz S-Class ↗

Engine

Engine
SpecificationValueSource
EngineVaries by configuration: 4.0L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 3.0L 6-cylinder turbocharged (SIDI)
Displacement3.0 L to 6.0 L
Cylinders6 to 12
AspirationTurbocharged
Fuel typeGasoline

Transmission and drivetrain

Transmission and drivetrain
SpecificationValueSource
TransmissionAutomatic
Gears7 to 9
DrivetrainVaries by configuration: 4WD, RWD, FWD

Fuel economy and range

Fuel economy and range
SpecificationValueSource
Combined16 mpg (14.7 L/100 km) to 22 mpg (10.7 L/100 km)
City13 mpg (18.1 L/100 km) to 19 mpg (12.4 L/100 km)
Highway21 mpg (11.2 L/100 km) to 28 mpg (8.4 L/100 km)

Our sources do not publish these for this vehicle: Power, Torque, Electric range, Battery capacity. We leave them out instead of estimating.

Trims and configurations

14 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

    • NHTSA vPIC · retrieved October 12, 2026 · US Government public data
    • EPA fueleconomy.gov · retrieved November 5, 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.

    Related vehicles

    • 2017 Mercedes-Benz S-Class

      Varies by configuration: Gasoline, Plug-in hybrid

      Varies by configuration: 5.5L 8-cylinder turbocharged (SIDI), 4.7L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 3.0L 6-cylinder turbocharged (SIDI; PHEV) · Varies by configuration: 4WD, RWD
      21 mpg (11.2 L/100 km) to 16 mpg (14.7 L/100 km)

    • 2019 Mercedes-Benz S-Class

      Varies by configuration: Gasoline, Plug-in hybrid

      Varies by configuration: 3.0L 6-cylinder turbocharged (SIDI), 4.0L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 3.0L 4-cylinder turbocharged (SIDI; PHEV) · Varies by configuration: RWD, 4WD, FWD
      22 mpg (10.7 L/100 km) to 16 mpg (14.7 L/100 km)

    Frequently asked questions

    What engine does the 2018 Mercedes-Benz S-Class have?

    Varies by configuration: 4.0L 8-cylinder turbocharged (SIDI), 6.0L 12-cylinder turbocharged, 3.0L 6-cylinder turbocharged (SIDI). Engines can differ by trim, so check the trim list below.

    What is the fuel economy of the 2018 Mercedes-Benz S-Class?

    Combined fuel economy is 16 mpg (14.7 L/100 km) to 22 mpg (10.7 L/100 km), as published by the source shown in the specification table.

    Is the 2018 Mercedes-Benz S-Class front-wheel, rear-wheel or all-wheel drive?

    Drivetrain: Varies by configuration: 4WD, RWD, FWD.

    Are there recalls for the 2018 Mercedes-Benz S-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.