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2003 Mercury Mountaineer

US · SUV · Sport Utility Vehicle - 2WD

The 2003 Mercury Mountaineer is listed in the US market as a suv. Every figure below carries the source it came from, and anything our sources do not publish is left out rather than estimated.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: 4.6L 8-cylinder, 4.0L 6-cylinder (FLEX-FUEL)
Power
Not available
Torque
Not available
Transmission
5-speed automatic
Drivetrain
Varies by configuration: RWD, AWD
Fuel
Varies by configuration: Gasoline, Flex fuel
Seating
Not available
Generic outline. Published dimensions for this vehicle are not available.
Specifications at a Glance

Key Performance & Dimensions

Units:
Engine / Powertrain
GASOLINE
Power Output
Not available
Peak Torque
Not available
Combined Economy
Not available
Drivetrain
Not available
Transmission
AUTOMATIC
Capacity
Not available
Exterior Dimensions
Not available
Market: US·Switch units anytime to convert horsepower, torque, fuel economy, and dimensions.
Compare 2003 Mercury Mountaineer ↗

Engine

Engine
SpecificationValueSource
EngineVaries by configuration: 4.6L 8-cylinder, 4.0L 6-cylinder (FLEX-FUEL)
Displacement4.0 L to 4.6 L
Cylinders6 to 8
Fuel typeVaries by configuration: Gasoline, Flex fuel

Not available from our sources: Aspiration, Power, Torque.

Transmission and drivetrain

Transmission and drivetrain
SpecificationValueSource
TransmissionAutomatic
Gears5
DrivetrainVaries by configuration: RWD, AWD

Fuel economy and range

Fuel economy and range
SpecificationValueSource
Combined16 mpg (14.7 L/100 km) to 15 mpg (15.7 L/100 km)
City14 mpg (16.8 L/100 km) to 13 mpg (18.1 L/100 km)
Highway19 mpg (12.4 L/100 km) to 18 mpg (13.1 L/100 km)

Not available from our sources: Electric range, Battery capacity.

Trims and configurations

4 configurations listed by our sources. Engines, drivetrains and fuel economy can differ between them.

Recalls

NHTSA lists 1 recall campaign for this model year. Last checked October 18, 2026.

  • 07E104000: VISIBILITY:GLASS, SIDE/REAR

    CERTAIN CURVED TEMPERED REPLACEMENT GLASS MANUFACTURED BY HANGZHOU SAFETY GLASS LTD AND SUPPLIED TO SAFELITE BY AUTO TEMP INC., IDENTIFIED AS DOT-430, AND SOLD FOR USE ON CERTAIN DOMESTIC AND FOREIGN VEHICLES MAY NOT BREAK INTO SMALL PIECES AS EXPECTED OF TEMPERED GLASS AND FAILS TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 205, "GLAZING MATERIALS."

    Remedy: SAFELITE WILL NOTIFY ITS RETAIL CUSTOMERS AND REPLACE THE GLASS FREE OF CHARGE. RETAIL CUSTOMERS CAN CONTACT SAFELITE TOLL FREE AT 1-888-843-2906. SAFELITE WILL NOTIFY ITS WHOLESALE CUSTOMERS AND REIMBURSE WHOLESALE CUSTOMERS FOR CURRENT…

    Reported December 11, 2007. View on NHTSA

Data sources

  • EPA fueleconomy.gov · retrieved October 18, 2026 · US Government public data
  • NHTSA vPIC · 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.

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Related vehicles

  • 2002 Mercury Mountaineer

    SUV, Varies by configuration: Gasoline, Flex fuel

    Varies by configuration: 4.0L 6-cylinder (SOHC), 4.6L 8-cylinder, 4.0L 6-cylinder, 4.6L 8-cylinder (AWD), 4.0L 6-cylinder (FLEX-FUEL) · Varies by configuration: RWD, AWD
    16 mpg (14.7 L/100 km) to 14 mpg (16.8 L/100 km)

  • 2004 Mercury Mountaineer

    SUV, Varies by configuration: Gasoline, Flex fuel

    Varies by configuration: 4.6L 8-cylinder, 4.0L 6-cylinder (FLEX-FUEL), 4.0L 6-cylinder · Varies by configuration: RWD, AWD
    16 mpg (14.7 L/100 km) to 15 mpg (15.7 L/100 km)

  • 2003 Infiniti FX35

    SUV, Gasoline

    3.5L 6-cylinder · Varies by configuration: RWD, AWD
    17 mpg (13.8 L/100 km)

  • 2003 Infiniti QX4

    SUV, Gasoline

    3.5L 6-cylinder · Varies by configuration: RWD, AWD
    16 mpg (14.7 L/100 km) to 15 mpg (15.7 L/100 km)

  • 2003 Chevrolet Tahoe

    SUV, Varies by configuration: Gasoline, Flex fuel

    Varies by configuration: 4.8L 8-cylinder, 5.3L 8-cylinder (LM7), 5.3L 8-cylinder (FLEX-FUEL) · Varies by configuration: RWD, AWD
    15 mpg (15.7 L/100 km) to 13 mpg (18.1 L/100 km)

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Frequently asked questions

What engine does the 2003 Mercury Mountaineer have?

Varies by configuration: 4.6L 8-cylinder, 4.0L 6-cylinder (FLEX-FUEL). Engines can differ by trim, so check the trim list below.

What is the fuel economy of the 2003 Mercury Mountaineer?

Combined fuel economy is 16 mpg (14.7 L/100 km) to 15 mpg (15.7 L/100 km), as published by the source shown in the specification table.

Is the 2003 Mercury Mountaineer front-wheel, rear-wheel or all-wheel drive?

Drivetrain: Varies by configuration: RWD, AWD.

Are there recalls for the 2003 Mercury Mountaineer?

NHTSA lists 1 recall campaign for this model year (last checked October 18, 2026). Details are in the Recalls section.