Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC | Technical specs, data, fuel consumption, Dimensions

2005 Mercedes-Benz S-class (W221) - Photo 1

Key specs

Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC /Sedan 2006 - 2009/

What is the body type of Mercedes-Benz S-class (W221)?

Sedan, 4 Doors, 5 Seats

What is the fuel consumption and economy of Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC?

9.4-9.6 l/100 km
25 - 24.5 US mpg
30.1 - 29.4 UK mpg
10.6 - 10.4 km/l

How environmentally friendly is Mercedes-Benz S-class S 420 CDI V8 (320 Hp) 7G-TRONIC?

247-252 g/km CO₂
Euro 4

How fast is 2006 S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC?

250 km/h | 155 mph
0-100 km/h: 6.6 sec
0-60 mph: 6.3 sec

What is the power output of Mercedes-Benz S-class Sedan 2006 S 420 CDI V8 (320 Hp) 7G-TRONIC?

320 Hp, 730 Nm
538 lb.-ft.

What is the engine displacement of Mercedes-Benz S-class Sedan 2006 S 420 CDI V8 (320 Hp) 7G-TRONIC?

4.0 l
3996 cm³
243.85 cu. in.

What is the number of cylinders in 2006 Mercedes-Benz S 420 CDI V8 (320 Hp) 7G-TRONIC?

8, V-engine

What is the drivetrain of Mercedes-Benz S-class (W221) Sedan 2006 S 420 CDI V8 (320 Hp) 7G-TRONIC?

Rear wheel drive. Internal Combustion engine. The Internal combustion engine (ICE) drives the rear wheels of the vehicle.

What is the length of 2006 Mercedes-Benz S-class Sedan?

5079 mm
199.96 in.

What is the width of 2006 Mercedes-Benz S-class Sedan?

1872 mm
73.7 in.

What is the kerb weight of 2006 Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC?

2015 kg
4442 lbs.

What is the maximum permissible mass of 2006 Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC?

2640 kg
5820 lbs.

What is the trunk (boot) capacity of 2006 Mercedes-Benz S-class Sedan?

560 l
19.8 cu. ft.

What is the number of gears in What is the gearbox type of 2006 Mercedes-Benz S-class (W221) S 420 CDI V8 (320 Hp) 7G-TRONIC?

7, automatic transmission G-TRONIC

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General information

Brand

Mercedes-Benz

Model

S-class

Generation

S-class (W221)

Modification (Engine)

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

Start of production

October, 2006 year

End of production

April, 2009 year

Powertrain Architecture

Internal Combustion engine

Body type

Sedan

Seats

Doors

Looking for Mercedes-Benz S-class on the used-car market?

Check its history →

Performance specs

Fuel consumption (economy) - urban (NEDC)

13-13.2 l/100 km 18.1 - 17.8 US mpg
21.7 - 21.4 UK mpg
7.7 - 7.6 km/l

Fuel consumption (economy) - extra urban (NEDC)

7.2-7.4 l/100 km 32.7 - 31.8 US mpg
39.2 - 38.2 UK mpg
13.9 - 13.5 km/l

Fuel consumption (economy) - combined (NEDC)

9.4-9.6 l/100 km 25 - 24.5 US mpg
30.1 - 29.4 UK mpg
10.6 - 10.4 km/l

CO₂ emissions (NEDC)

247-252 g/km

Fuel Type

Diesel

Acceleration 0 - 100 km/h

6.6 sec

Acceleration 0 - 62 mph

6.6 sec

Acceleration 0 - 60 mph (Calculated by Auto-Data.net)

6.3 sec

Maximum speed

250 km/h, Electronically limited 155 mph

Emission standard

Euro 4

Weight-to-power ratio

6.3 kg/Hp, 158.8 Hp/tonne

Weight-to-torque ratio

2.8 kg/Nm, 362.3 Nm/tonne

Engine specs

Power

320 Hp @ 3600 rpm.

Power per litre

80.1 Hp/l

Torque

730 Nm @ 2200 rpm. 538 lb.-ft. @ 2200 rpm.

Engine layout

Front, Longitudinal

Engine Model/Code

OM 629.911

Engine displacement

3996 cm³ 243.85 cu. in.

Number of cylinders

Engine configuration

V-engine

Cylinder Bore

86 mm 3.39 in.

Piston Stroke

86 mm 3.39 in.

Compression ratio

17:1

Number of valves per cylinder

Fuel injection system

Diesel Commonrail

Engine aspiration

Bi-Turbo, Intercooler

Valvetrain

DOHC

Engine oil capacity

10.5 l 11.1 US qt | 9.24 UK qt

Engine oil specification

Coolant

9 l 9.51 US qt | 7.92 UK qt

Engine systems

Particulate filter

Volume and weights

Kerb Weight

2015 kg 4442 lbs.

Max. weight

2640 kg 5820 lbs.

Max load

625 kg 1378 lbs.

Trunk (boot) space - minimum

560 l 19.8 cu. ft.

Fuel tank capacity

90 l 23.78 US gal | 19.8 UK gal

Max. roof load

100 kg 220 lbs.

Permitted trailer load with brakes (12%)

2100 kg 4630 lbs.

Permitted trailer load without brakes

750 kg 1653 lbs.

Dimensions

Length

5079 mm 199.96 in.

Width

1872 mm 73.7 in.

Width including mirrors

2115 mm 83.27 in.

Height

1473 mm 57.99 in.

Wheelbase

3035 mm 119.49 in.

Front track

1604 mm 63.15 in.

Rear (Back) track

1606 mm 63.23 in.

Front overhang

871 mm 34.29 in.

Rear overhang

1173 mm 46.18 in.

Ride height (ground clearance)

146 mm 5.75 in.

Drag coefficient (C_d)

0.27

Minimum turning circle (turning diameter)

11.8 m 38.71 ft.

Approach angle

14.7°

Departure angle

15°

Ramp-over (brakeover) angle

11.2°

Drivetrain, brakes and suspension specs

Drivetrain Architecture

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

Drive wheel

Rear wheel drive

Number of gears and type of gearbox

7 gears, automatic transmission G-TRONIC

Front suspension

Independent multi-link suspension, Anti-roll bar, Air suspension

Rear suspension

Independent multi-link suspension, Air suspension, Anti-roll bar

Front brakes

Ventilated discs

Rear brakes

Ventilated discs

Assisting systems

ABS (Anti-lock braking system)

Steering type

Steering rack and pinion

Power steering

Hydraulic Steering

Tires size

235/55 R17

Wheel rims size

8J x 17

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