1. Home
  2. Brand
  3. Mercedes-Benz
  4. Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC 2006, 2007, 2008, 2009
Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC 2006, 2007, 2008, 2009
Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC 2006, 2007, 2008, 2009
Compare

General information

Name

Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC 2006, 2007, 2008, 2009

Brand

Mercedes-Benz
Model

S-Class
Generation

S-class (W221)
Year of production

2006

Number of seats

5

Number of doors

4

Body type

Sedan
Powertrain architecture

Internal Combustion engine
Engine Modification

S 420 CDI V8 (320 Hp) 7G-TRONIC

Power

320 Hp @ 3600 rpm.

Torque (Nm)

730 Nm @ 2200 rpm.

Electrical System

Performance specs

CO2 emissions (g/km)

247-252 g/km

Emission standard

Euro 4

Fuel consumption economy urban (l/100 km)

13-13.2 l/100 km

Fuel consumption economy extra urban (l/100 km)

7.2-7.4 l/100 km

Fuel consumption economy combined (l/100 km)

9.4-9.6 l/100 km

Acceleration 0-100 km/h

6.6 sec

Maximum speed (km/h)

250 km/h, Electronically limited

Engine specs

Engine #1

Power
320 Hp @ 3600 rpm.
Power per litre
80.1 Hp/l
Torque
730 Nm @ 2200 rpm.
Engine displacement
3996 cm3
Number of cylinders
8
Position of cylinders
V-engine
Cylinder bore
86 mm
Piston stroke
86 mm
Compression ratio
17
Number of valves per cylinder
4
Fuel system
Diesel Commonrail
Fuel type
Diesel
Valve train
DOHC

Space volume and weights

Curb weight (kg)

2015 kg

Max weight (kg)

2640 kg

Fuel tank capacity (l)

90 l

Trunk boot space minimum (l)

560 l

Dimensions

Length (mm)

5079 mm

Width (mm)

1872 mm

Height (mm)

1473 mm

Wheelbase (mm)

3035 mm

Front track (mm)

1604 mm

Rear track (mm)

1606 mm

Minimum turning circle turning diameter (mm)

11.8 m

Drivetrain brakes and suspension specs

Drivetrain architecture

The Internal combustion engine (ICE) drives the rear wheels of the vehicle.

Drive wheel

Rear wheel drive

Transmission type

automatic

Front suspension system

Independent multi-link, Transverse stabilizer, Pneumatic suspension

Rear suspension system

Pneumatic suspension, Transverse stabilizer, Independent multi-link

Front brakes

Ventilated discs

Rear brakes

Ventilated discs

Power steering

Hydraulic Steering

Front tires size

235/55 R17

Rear tires size

235/55 R17

Wheel rims size

8J x 17

Technology and Operation