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Mercedes-Benz R-class W251 (2005–2010) Specs

Specifications, engines, dimensions and technical data.

Gen 1 2005 - 2014 W251 Station Wagon Estate
Mercedes-Benz R-class
Engine —
Power —
Fuel —
Gears —
Platform —

Body Style



Mercedes-Benz R-class W251 overview

The Mercedes-Benz R-class (W251) is the 1st generation of the R-class, built from 2005 to 2010. It is offered as a Station Wagon Estate with 7 engines (diesel, petrol), from 190 HP to 510 HP. The R 500 V8 (306 Hp) 4MATIC G-TRONIC accelerates from 0 to 100 km/h in 7.0 s, reaches a top speed of 245 km/h and is 5157 mm long.

How much horsepower does the Mercedes-Benz R-class have?

The Mercedes-Benz R-class (W251) has 190 HP to 510 HP, depending on the engine: 3.0 Om642 (190 HP), 3.0 Om642 (210 HP), 3.0 M272 (231 HP), 3.5 M272 (272 HP), 5.0 M113 (306 HP), 5.5 M273 (388 HP), 6.2 M156 (510 HP).

What engines are available for the Mercedes-Benz R-class?

The Mercedes-Benz R-class is available with 7 engines: 3.0 Om642 (190 HP, diesel), 3.0 Om642 (210 HP, diesel), 3.0 M272 (231 HP, petrol), 3.5 M272 (272 HP, petrol), 5.0 M113 (306 HP, petrol), 5.5 M273 (388 HP, petrol), 6.2 M156 (510 HP, petrol).

What are the dimensions of the Mercedes-Benz R-class?

The Mercedes-Benz R-class is 5157 mm long, 1922 mm wide, 1674 mm tall, with a 3215 mm wheelbase.

How fast is the Mercedes-Benz R-class?

The Mercedes-Benz R-class R 500 V8 (306 Hp) 4MATIC G-TRONIC goes from 0 to 100 km/h in 7.0 s and has a top speed of 245 km/h.

Advanced Specs

Overview

Generation Mercedes-Benz R-class Long V251
Year 2006–2008
Platform Mercedes-Benz W251
Variant R 500 V8 (306 Hp) 4MATIC G-TRONIC
Body type Station Wagon Estate
Engine type Fuel
Fuel type Petrol
Seats 5
Doors 5
Emission standard Euro 5

Power & torque

Power 306 HP
Power @ max rpm 5600 rpm
Torque 460 Nm
Torque @ min rpm 2700 rpm
Torque @ max rpm 4750 rpm

Performance

Top speed 245 km/h
0–100 km/h 7.0 s
0–62 mph 7.0 s

Engine

Engine code M113.971
Displacement 4966 cc
Cylinders 8
Configuration V Engine
Bore 97.0 mm
Stroke 84.0 mm
Compression ratio 10
Valves per cylinder 3
Injection system Multi Port Manifold Injection
Aspiration Naturally Aspirated Engine
Valvetrain sohc
Oil capacity 8.5 L
Coolant 10.1 L
Engine layout Front Longitudinal

Drivetrain & transmission

Drive All wheel drive (4x4)
Powertrain architecture Internal Combustion Engine
Gearbox type torque_converter
Gears 7
Gearbox code 722.9-7g-tronic
Gearbox manufacturer Mercedes Benz

Dimensions

Length 5157 mm
Width 1922 mm
Height 1674 mm
Wheelbase 3215 mm
Front track 1661 mm
Rear track 1651 mm
Boot space 0 – 2385 L
Turning circle 12.4 m

Mass

Kerb weight 2240 kg
Max weight 2895 kg
Max load 655 kg

Consumption & emissions

Fuel combined 13.3 L/100km
CO₂ emissions 317 g/km
Fuel tank 80.0 L

Chassis & brakes

Front suspension Double Wishbone
Rear suspension Independent Multi Link Spring Suspension With Stabilizer
Front brakes Ventilated Discs
Rear brakes Ventilated Discs
Steering type Steering Rack And Pinion
Power steering Hydraulic Steering
Tire size 255/55 R19 W
Wheel rims 19
Assisting systems Abs Anti Lock Braking System

Efficiency ratios

Weight-to-power 7.3 kg/Hp, 136.6 Hp/tonne
Weight-to-torque 4.9 kg/Nm, 205.4 Nm/tonne
Max roof load 100 kg

Other

Start Of Production 2006
End Of Production 2008

Performance

Engine speed (1k/rpm)

Figures from catalog data; real-world values may differ.

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