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1975 Mercedes-Benz W123 250 (129 Hp) Automatic

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Key specs

Mercedes-Benz W123 Sedan 1975, 1976, 1977, 1978, 1979

What is the body type, Mercedes-Benz W123?Sedan, 4 Doors, 5 Seats
How fast is the car, 1975 W123 250 (129 Hp) Automatic?180 km/h | 111.85 mph
0-100 km/h: 12.2 sec
0-60 mph: 11.6 sec
How much power, Mercedes-Benz W123 Sedan 1975 250 (129 Hp) Automatic?129 Hp, 196 Nm
144.56 lb.-ft.
What is the engine size, Mercedes-Benz W123 Sedan 1975 250 (129 Hp) Automatic?2.5 l
2525 cm3
154.08 cu. in.
How many cylinders, 1975 Mercedes-Benz 250 (129 Hp) Automatic?6, Inline
What is the drivetrain, Mercedes-Benz W123 Sedan 1975 250 (129 Hp) Automatic?Rear wheel drive. Internal Combustion engine. The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
How long is this vehicle, 1975 Mercedes-Benz W123 Sedan?4725 mm
186.02 in.
How wide is the vehicle, 1975 Mercedes-Benz W123 Sedan?1786 mm
70.31 in.
What is the curb weight, 1975 Mercedes-Benz W123 250 (129 Hp) Automatic?1410 kg
3108.52 lbs.
What is the gross weight, 1975 Mercedes-Benz W123 250 (129 Hp) Automatic?1930 kg
4254.92 lbs.
How many gears, What type is the gearbox, 1975 Mercedes-Benz W123 250 (129 Hp) Automatic?4, automatic transmission

Mercedes-Benz W123 250 (129 Hp) Automatic 1975, 1976, 1977, 1978, 1979 Specs

General information
BrandMercedes-Benz
Model W123
Generation W123
Modification (Engine) 250 (129 Hp) Automatic
Start of production July, 1975 year
End of production September, 1979 year
Powertrain Architecture Internal Combustion engine
Body typeSedan
Seats 5
Doors 4
Performance specs
Fuel consumption (economy) - urban 16 l/100 km 14.7 US mpg
17.66 UK mpg
6.25 km/l
Fuel consumption (economy) - extra urban 10.1 l/100 km 23.29 US mpg
27.97 UK mpg
9.9 km/l
Fuel Type Petrol (Gasoline)
Acceleration 0 - 100 km/h12.2 sec
Acceleration 0 - 62 mph12.2 sec
Acceleration 0 - 60 mph (Calculated by Auto-Data.net) 11.6 sec
Maximum speed 180 km/h 111.85 mph
Weight-to-power ratio 10.9 kg/Hp, 91.5 Hp/tonne
Weight-to-torque ratio 7.2 kg/Nm, 139 Nm/tonne
Engine specs
Power 129 Hp @ 5500 rpm.
Power per litre 51.1 Hp/l
Torque 196 Nm @ 3500 rpm. 144.56 lb.-ft. @ 3500 rpm.
Engine location Front, Longitudinal
Engine Model/Code M 123 V 25 / 123.920
Engine displacement 2525 cm3 154.08 cu. in.
Number of cylinders 6
Position of cylinders Inline
Cylinder Bore 86 mm 3.39 in.
Piston Stroke 72.45 mm 2.85 in.
Compression ratio 8.7
Number of valves per cylinder 2
Fuel System Carburettor
Engine aspiration Naturally aspirated engine
Valvetrain SOHC
Engine oil capacity 7.5 l 7.93 US qt | 6.6 UK qt
Oil viscosity Log in to see.Log in to see.
Engine oil specification
Coolant 10 l 10.57 US qt | 8.8 UK qt
Space, Volume and weights
Kerb Weight 1410 kg 3108.52 lbs.
Max. weight 1930 kg 4254.92 lbs.
Max load 520 kg 1146.4 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 (automatic transmission) 4
Front suspension Double wishbone
Rear suspension Trailing arm
Front brakesDisc
Rear brakesDisc
Steering type Cone worm with recirculation balls
Wheel rims sizeFront wheel rims: 5.5J x 14
Rear wheel rims: 5.5J x 14