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Mercedes-Benz S-class W221 (2005–2009) Specs

Specifications, engines, dimensions and technical data.

Gen 5 2005 - 2013 W221 Sedan
Mercedes-Benz S-class
Engine —
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Body Style



Mercedes-Benz S-class W221 overview

The Mercedes-Benz S-class (W221) is the 5th generation of the S-class, built from 2005 to 2009. It is offered as a Sedan with 8 engines (diesel, petrol), from 235 HP to 612 HP. The S 500 (388 Hp) 4MATIC 7G-TRONIC accelerates from 0 to 100 km/h in 5.4 s, reaches a top speed of 250 km/h and is 5209 mm long.

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

The Mercedes-Benz S-class (W221) has 235 HP to 612 HP, depending on the engine: 3.0 Om642 (235 HP), 3.5 M272 (272 HP), 4.0 Om629 (320 HP), 4.7 M273 (340 HP), 5.5 M273 (388 HP), 5.5 M275 (517 HP), 6.2 M156 (525 HP), 6.0 M275 (612 HP).

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

The Mercedes-Benz S-class is available with 8 engines: 3.0 Om642 (235 HP, diesel), 3.5 M272 (272 HP, petrol), 4.0 Om629 (320 HP, diesel), 4.7 M273 (340 HP, petrol), 5.5 M273 (388 HP, petrol), 5.5 M275 (517 HP, petrol), 6.2 M156 (525 HP, petrol), 6.0 M275 (612 HP, petrol).

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

The Mercedes-Benz S-class is 5209 mm long, 1872 mm wide, 1473 mm tall, with a 3165 mm wheelbase.

How fast is the Mercedes-Benz S-class?

The Mercedes-Benz S-class S 500 (388 Hp) 4MATIC 7G-TRONIC goes from 0 to 100 km/h in 5.4 s and has a top speed of 250 km/h.

Advanced Specs

Overview

Generation Mercedes-Benz S-class Long V221
Year 2005–2009
Platform Mercedes-Benz W221
Variant S 500 (388 Hp) 4MATIC 7G-TRONIC
Body type sedan
Engine type Fuel
Fuel type Petrol
Seats 5
Doors 4

Power & torque

Power 388 HP
Power @ max rpm 6000 rpm
Torque 530 Nm
Torque @ max rpm 2800 rpm

Performance

Top speed 250 km/h
0–100 km/h 5.4 s
0–62 mph 5.4 s

Engine

Engine code M273.968
Displacement 5461 cc
Cylinders 8
Configuration V Engine
Bore 98.0 mm
Stroke 90.5 mm
Compression ratio 10.7
Valves per cylinder 4
Injection system Multi Port Manifold Injection
Aspiration Naturally Aspirated Engine
Valvetrain dohc
Oil capacity 8.0 L
Coolant 11.5 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 5209 mm
Width 1872 mm
Height 1473 mm
Wheelbase 3165 mm
Front track 1604 mm
Rear track 1606 mm
Boot space 560 L
Turning circle 12.2 m

Mass

Kerb weight 1980 kg
Max weight 2640 kg
Max load 660 kg

Consumption & emissions

Fuel combined 12.2 L/100km
Fuel urban 18.1 L/100km
Fuel extra urban 8.9 L/100km
CO₂ emissions 291 g/km
Fuel tank 90.0 L

Chassis & brakes

Front suspension Air Suspension
Rear suspension Air Suspension
Front brakes Ventilated Discs
Rear brakes Ventilated Discs
Steering type Steering Rack And Pinion
Tire size 235/55 R17
Wheel rims 8J x 17
Assisting systems Abs Anti Lock Braking System

Efficiency ratios

Weight-to-power 5.1 kg/Hp, 196 Hp/tonne
Weight-to-torque 3.7 kg/Nm, 267.7 Nm/tonne

Other

Start Of Production 2005
End Of Production 2009
Width Including Mirrors 2115
Front Overhang 871
Rear Overhang 1173

Performance

Engine speed (1k/rpm)

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

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