Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005

Key specs

Mercedes-Benz R-class (Station wagon (estate)) R-class (W251) 2005,2006,2007

What is the body type, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

Station wagon (estate), 5 Doors, 6 Seats

How much power, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

306 Hp @ 5600 rpm.
61.6 Hp/l

How fast is the car, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

245 km/h 152.24 mph

What is the engine size, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

4966 cm3
303.04 cu. in.

How many cylinders, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

8, V-engine

What is the drivetrain, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

All wheel drive (4x4),

How long is this vehicle, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

4922 mm
193.78 in.

How wide is the vehicle, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

1922 mm
75.67 in.

What is the curb weight, Mercedes-Benz R-class (W251) R 500 V8 (306 Hp) 4MATIC 7G-TRONIC 2005?

2115 kg
4662.78 lbs.

Mercedes-Benz R-class (Station wagon (estate)) R-class (W251) 2005,2006,2007 Specs

General information

Brand Mercedes-Benz
Model R-class (Station wagon (estate))
Version R-class (W251)
Engine version R 500 V8 (306 Hp) 4MATIC 7G-TRONIC
Year production start 2005
Year production end 2007
Vehicle type Station wagon (estate)
Horsepower RPM 306 Hp @ 5600 rpm.
Acceleration 0 - 100 kmh sec 6.9 sec
Curb weight kg -lbs total

2115 kg

4662.78 lbs.
Overall length mm - inch

4922 mm

193.78 in.
Doors 5
Top Speed 245 km/h 152.24 mph

Engine specs

Designation model M 113.971
Cam configuration SOHC
Engine position and orientation Front, Longitudinal
Cylinders 8
Position of cylinders V-engine
Displacement (liters)

4966 cm3

303.04 cu. in.
Eng. horsepower RPM 306 Hp @ 5600 rpm.
Horsepower per litre 61.6 Hp/l
Weight / horsepower kg/hp - hp/tons

6.9 kg/Hp

144.7 Hp/tonne
Weight / torque kg/Nm - Nm/tons 4.6 kg/Nm, 217.5 Nm/tonne

4.6 kg/Nm

217.5 Nm/tonne
Torque Nm RPM lb-ft RPM

460 Nm @ 2700-4750 rpm.

339.28 lb.-ft. @ 2700-4750 rpm.
Bore (mm in)

97 mm

3.82 in.
Stroke (mm in)

84 mm

3.31 in.
Compression ratio 10
Fuel delivery system Multi-point indirect injection
Fuel type Petrol (Gasoline)
Valvetrain 3
Engine aspiration Naturally aspirated engine
Engine oil liters | quarts

8.5 l

8.98 US qt | 7.48 UK qt
Engine coolant

10.1-13 l

10.67 - 13.74 US qt | 8.89 - 11.44 UK qt
Emission certification Euro 4
Powertrain architecture Internal Combustion engine
Engine location Front, Longitudinal

Transmission and Drive system

Drive configuration All wheel drive (4x4)

Brakes

Front brakes Ventilated discs
Rear brakes Ventilated discs
Anti-lock brake system ABS (Anti-lock braking system)

Steering

Steering type Steering rack and pinion
Turning diameter m - ft

11.7 m

38.39 ft.

Suspension

Front suspension Double wishbone, Transverse stabilizer
Rear suspension Pneumatic suspension, Transverse stabilizer, Independent multi-link

Body / Chassis

Wheels & Tyres

Wheels size 255/55 R18; 255/50 R19
Wheels rims 8J x 18; 8J x 19

Exterior

Interior

Safety and Security

Passenger

Passengers seats 6
Trunk space max liter | cu. Ft.

1950 l

68.86 cu. ft.
Roof load load kg lbs

100 kg

220.46 lbs.

Dimensions

Overall length mm - inch

4922 mm

193.78 in.
Overall width mm -inch

1922 mm

75.67 in.
Overall height mm -inch

1661 mm

65.39 in.
Wheelbase mm - inch

2980 mm

117.32 in.
Track width front mm - inch

1665 mm

65.55 in.
Track width rear mm - inch

1658 mm

65.28 in.

Weights

Curb weight kg -lbs total

2115 kg

4662.78 lbs.
Gross weight kg -lbs total

2865 kg

6316.24 lbs.
Capacities kg - lbs

750 kg

1653.47 lbs.
Fuel tank liters | gallons

80 l

21.13 US gal | 17.6 UK gal

Fuel economy

Urban (NEDC) l/100 km - Mpg

18.6-19.5 l/100 km

12.65 - 12.06 US mpg
Extra urban (NEDC) l/100 km - Mpg

10.1-10.6 l/100 km

23.29 - 22.19 US mpg
Combined (NEDC) l/100 km - Mpg

13.3-13.9 l/100 km

17.69 - 16.92 US mpg
Autonomy km (combined use) NEDC 602

Engine type

8 CYLINDER V-Engine
It's an engine with eight cylinder piston where the cylinders share a common crankshaft and are arranged in a V configuration.

What is the 8 cylinder V-engine displacement: it is in a range between 2926 cc and 8135 cc in recent model line up powertrain.

How much is the power of the 8 cylinder V-engine: the power of the 8 cylinder V-engine is in a range from 125 bhp to 1160 bhp.

Which cars use 8 cylinder V-engine: in recent years several manufactures have been used the V8 engine for 3 main applications: premium, sport cars and lightweight trucks. 8 V engine is the American preferred engine for iconic giant pick-up.

What is the eight cylinder V angle: the majority of V8 engines use a V-angle of 90 degrees. This angle results in good engine balance and low vibrations. The downside is a larger powertrain body that makes the use of this configuration suitable only for longitudinal position and rear drive wheels traction.

V8 engines with a 60 degree V-angle were used in the 1996-1999 by Ford and in 2005-2011 by Volvo. The Ford engine used a 60 degree V-angle because it was based on a V6 engine with a 60 degree V-angle. Both the Ford and Volvo engines were used in transverse engine chassis, which were designed for a front-wheel-drive layout. To reduce the vibrations caused by the unbalanced 60 degree V-angle, Volvo's used a balance shaft and offset split crankpins.

The Rolls-Royce Meteorite tank engine also used a 60 degree V-angle, since it was derived from the 60 degree V12 Rolls-Royce Meteor which in turn was based on the famous Rolls-Royce Merlin V12 engine.

Most V8 engines fitted to road cars use a cross-plane crankshaft, since this configuration produces less vibration due to the perfect primary balance and secondary balance.

The rumbling exhaust sound produced by a typical cross-plane V8 engine is partly due to the uneven firing order within each of the two banks of four cylinders and with separate exhaust systems for each bank of cylinders, this uneven pulsing creates the legendary rumbling sound that is typically of V8 engines.

edited by arrabbiata

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