Mercedes-Benz W123 250 (140 Hp) | Technical Specs, Fuel consumption, Dimensions

Key specs

Mercedes-Benz W123 250 (140 Hp) /Sedan 1979 - 1985/

What is the body type of Mercedes-Benz W123?

Sedan, 4 Doors, 5 Seats

How fast is 1979 W123 250 (140 Hp)?

185 km/h | 115 mph
0-100 km/h: 11.3 sec
0-60 mph: 10.7 sec

What is the power output of Mercedes-Benz W123 Sedan 1979 250 (140 Hp)?

140 Hp, 200 Nm
148 lb.-ft.

What is the engine displacement of Mercedes-Benz W123 Sedan 1979 250 (140 Hp)?

2.5 l
2525 cm³
154.08 cu. in.

What is the number of cylinders in 1979 Mercedes-Benz 250 (140 Hp)?

6, Inline

What is the drivetrain of Mercedes-Benz W123 Sedan 1979 250 (140 Hp)?

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

What is the length of 1979 Mercedes-Benz W123 Sedan?

4725 mm
186.02 in.

What is the width of 1979 Mercedes-Benz W123 Sedan?

1786 mm
70.31 in.

What is the kerb weight of 1979 Mercedes-Benz W123 250 (140 Hp)?

1410 kg
3109 lbs.

What is the maximum permissible mass of 1979 Mercedes-Benz W123 250 (140 Hp)?

1930 kg
4255 lbs.

What are the number of gears and the gearbox type of 1979 Mercedes-Benz W123 250 (140 Hp)?

4, manual transmission

General information

Brand

Mercedes-Benz

Model

W123

Generation

W123

Modification (Engine)

250 (140 Hp)

Start of production

September, 1979

End of production

December, 1985

Powertrain Architecture

Internal Combustion engine

Body type

Sedan

Seats

Doors

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Performance specs

Fuel consumption (economy) - urban

16.4 l/100 km 14.3 US mpg
17.2 UK mpg
6.1 km/l

Fuel consumption (economy) - extra urban

9.8 l/100 km 24 US mpg
28.8 UK mpg
10.2 km/l

Fuel Type

Petrol (Gasoline)

Acceleration 0 - 100 km/h

11.3 sec

Acceleration 0 - 62 mph

11.3 sec

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

10.7 sec

Maximum speed

185 km/h 115 mph

Weight-to-power ratio

10.1 kg/Hp, 99.3 Hp/tonne

Weight-to-torque ratio

7.1 kg/Nm, 141.8 Nm/tonne

Engine specs

Power

140 Hp @ 5500 rpm.

Power per litre

55.4 Hp/l

Torque

200 Nm @ 3500 rpm. 148 lb.-ft. @ 3500 rpm.

Engine layout

Front, Longitudinal

Engine Model/Code

M 123 V 25 / 123.921

Engine displacement

2525 cm³ 154.08 cu. in.

Number of cylinders

Engine configuration

Inline

Cylinder Bore

86 mm 3.39 in.

Piston Stroke

72.45 mm 2.85 in.

Compression ratio

9:1

Number of valves per cylinder

Fuel injection system

Carburettor

Engine aspiration

Naturally aspirated engine

Valvetrain

SOHC

Engine oil capacity

7.5 l 7.93 US qt | 6.6 UK qt

Engine oil specification

Coolant

10 l 10.57 US qt | 8.8 UK qt

Volume and weights

Kerb Weight

1410 kg 3109 lbs.

Max. weight

1930 kg 4255 lbs.

Max load

520 kg 1146 lbs.

Fuel tank capacity

80 l 21.13 US gal | 17.6 UK gal

Dimensions

Length

4725 mm 186.02 in.

Width

1786 mm 70.31 in.

Height

1438 mm 56.61 in.

Wheelbase

2795 mm 110.04 in.

Front track

1488 mm 58.58 in.

Rear (Back) track

1446 mm 56.93 in.

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

4 gears, manual transmission

Front suspension

Double wishbone

Rear suspension

Trailing arm

Front brakes

Disc

Rear brakes

Disc

Steering type

Recirculating-ball steering

Wheel rim size

Front wheel rims: 5.5J x 14
Rear wheel rims: 5.5J x 14

Mercedes-Benz W123 250 (140 Hp)1979, 1980, 1981, 1982, 1983, 1984, 1985: specs, Fuel consumption, Dimensions