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Mercedes-Benz W123 Estate – 250 2.5 petrol

S123 · 123.086 · 103 kW / 140 hp

1978 - 1982 · Petrol · Engine code M 123 V 25 / 123.921

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Car Details

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Engine

Fuel
Petrol
Made
1978 - 1982
Engine code
M 123 V 25 / 123.921
Engine size
2,525 cc (2.5 litres)
Engine power
140 hp (103 kW) at 5,500 rpm
Torque (pulling power)
200 Nm at 3,500 rpm
Cylinders
6, in a row (inline)
Turbo
No turbo (naturally aspirated)
Fuel injection
Carburettor or Multi-point injection
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Valves
12 (2 per cylinder)
Valve system
SOHC
Bore x stroke
86 x 72.45 mm
Compression ratio
9:1
Engine position
Front, lengthways (longitudinal)
Catalytic converter
No catalytic converter

Fluids and capacities

Engine oil amount
7.5 litres
Engine oil grade
10W-40 or 15W-40
Coolant
10 litres
Fuel tank
70 litres

Gearbox and drive

Gearbox
4-speed manual or 4-speed automatic
Driven wheels
Rear-wheel drive

Wheels, brakes, suspension and steering

Tyre size
195/70 R14
Wheel (rim) size
6J x 14
Front brakes
Discs
Rear brakes
Discs
Steering
Recirculating ball, hydraulic power steering
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Front suspension
Double wishbone
Rear suspension
Trailing arm

Size and weight

Body style
Estate (station wagon)
Seats
5
Doors
5
Length
4,725 mm
Width
1,786 mm
Height
1,470 mm
Weight (empty)
1,510 kg
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Wheelbase
2,795 mm
Front track
1,488 mm
Rear track
1,453 mm
Maximum weight (loaded)
2,130 kg
Load it can carry
620 kg

Speed and fuel use

Fuel use in town
14.5 to 14.8 l/100 km (about 6.8 to 6.9 km per litre)
Fuel use on the highway
9 to 9.5 l/100 km (about 10.5 to 11.1 km per litre)
Top speed
180 to 185 km/h
0 to 100 km/h
11.9 to 12.9 seconds

Fuel use is from official tests; town driving usually uses more.