Mercedes-Benz S123 250 T (129 Hp) | Technical Specs, Fuel consumption, Dimensions

Key specs

Mercedes-Benz S123 250 T (129 Hp) /Station wagon 1977 - 1979/

What is the body type of Mercedes-Benz S123?

Station wagon, 5 Doors, 5 Seats

How fast is 1977 S123 250 T (129 Hp)?

185 km/h | 115 mph
0-100 km/h: 11.9 sec
0-60 mph: 11.3 sec

What is the power output of Mercedes-Benz W123 Station wagon 1977 250 T (129 Hp)?

129 Hp, 196 Nm
145 lb.-ft.

What is the engine displacement of Mercedes-Benz W123 Station wagon 1977 250 T (129 Hp)?

2.5 l
2525 cm³
154.08 cu. in.

What is the number of cylinders in 1977 Mercedes-Benz 250 T (129 Hp)?

6, Inline

What is the drivetrain of Mercedes-Benz S123 Station wagon 1977 250 T (129 Hp)?

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

What is the length of 1977 Mercedes-Benz W123 Station wagon?

4725 mm
186.02 in.

What is the width of 1977 Mercedes-Benz W123 Station wagon?

1786 mm
70.31 in.

What is the kerb weight of 1977 Mercedes-Benz S123 250 T (129 Hp)?

1510 kg
3329 lbs.

What is the maximum permissible mass of 1977 Mercedes-Benz S123 250 T (129 Hp)?

2130 kg
4696 lbs.

What are the number of gears and the gearbox type of 1977 Mercedes-Benz S123 250 T (129 Hp)?

4, manual transmission

General information

Brand

Mercedes-Benz

Model

W123

Generation

S123

Modification (Engine)

250 T (129 Hp)

Start of production

September, 1977

End of production

September, 1979

Powertrain Architecture

Internal Combustion engine

Body type

Station wagon (estate)

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

11.9 sec

Acceleration 0 - 62 mph

11.9 sec

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

11.3 sec

Maximum speed

185 km/h 115 mph

Weight-to-power ratio

11.7 kg/Hp, 85.4 Hp/tonne

Weight-to-torque ratio

7.7 kg/Nm, 129.8 Nm/tonne

Engine specs

Power

129 Hp @ 5500 rpm.

Power per litre

51.1 Hp/l

Torque

196 Nm @ 3500 rpm. 145 lb.-ft. @ 3500 rpm.

Engine layout

Front, Longitudinal

Engine Model/Code

M 123 V 25 / 123.920

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

8.7:1

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

1510 kg 3329 lbs.

Max. weight

2130 kg 4696 lbs.

Max load

620 kg 1367 lbs.

Fuel tank capacity

70 l 18.49 US gal | 15.4 UK gal

Dimensions

Length

4725 mm 186.02 in.

Width

1786 mm 70.31 in.

Height

1470 mm 57.87 in.

Wheelbase

2795 mm 110.04 in.

Front track

1488 mm 58.58 in.

Rear (Back) track

1453 mm 57.2 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

Power steering

Hydraulic Steering

Tire size

Front wheel tires: 195/70 R14
Rear wheel tires: 195/70 R14

Wheel rim size

Front wheel rims: 6J x 14
Rear wheel rims: 6J x 14

Mercedes-Benz S123 250 T (129 Hp)1977, 1978, 1979: specs, Fuel consumption, Dimensions