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BMW 3 Series E21 (1975–1984) Specs

Specifications, engines, dimensions and technical data.

Gen 1 1975 - 1984 E21 Sedan
BMW 3 Series
Engine —
Power —
Fuel —
Gears —
Platform —

Body Style



BMW 3 Series E21 overview

The BMW 3 Series (E21) is the 1st generation of the 3 Series, built from 1975 to 1984. It is offered as a Sedan with 9 engines (petrol), from 75 HP to 143 HP. The 318i (105 Hp) accelerates from 0 to 100 km/h in 11.5 s, reaches a top speed of 173 km/h and is 4355 mm long.

How much horsepower does the BMW 3 Series have?

The BMW 3 Series (E21) has 75 HP to 143 HP, depending on the engine: 1.6 M10 (75 HP), 315 (75 HP), 1.6 M10 (90 HP), 316 (90 HP), 1.8 M10 (98 HP), 1.8 M10 (105 HP), 2.0 M10 (109 HP), 2.0 M20 (122 HP), 2.3 M20 (143 HP).

What engines are available for the BMW 3 Series?

The BMW 3 Series is available with 9 engines: 1.6 M10 (75 HP, petrol), 315 (75 HP, petrol), 1.6 M10 (90 HP, petrol), 316 (90 HP, petrol), 1.8 M10 (98 HP, petrol), 1.8 M10 (105 HP, petrol), 2.0 M10 (109 HP, petrol), 2.0 M20 (122 HP, petrol), 2.3 M20 (143 HP, petrol).

What are the dimensions of the BMW 3 Series?

The BMW 3 Series is 4355 mm long, 1610 mm wide, 1380 mm tall, with a 2563 mm wheelbase.

How fast is the BMW 3 Series?

The BMW 3 Series 318i (105 Hp) goes from 0 to 100 km/h in 11.5 s and has a top speed of 173 km/h.

Advanced Specs

Overview

Generation BMW 3 Series E21
Year 1979–1982
Platform BMW E21
Variant 318i (105 Hp)
Body type sedan
Engine type Fuel
Fuel type Petrol
Seats 5
Doors 2

Power & torque

Power 105 HP
Power @ max rpm 5800 rpm
Torque 145 Nm
Torque @ max rpm 4500 rpm

Performance

Top speed 173 km/h
0–100 km/h 11.5 s
0–62 mph 11.5 s

Engine

Engine code M10B18
Displacement 1766 cc
Cylinders 4
Configuration inline
Bore 89.0 mm
Stroke 71.0 mm
Compression ratio 8.6
Valves per cylinder 2
Injection system carburettor
Aspiration Naturally Aspirated Engine
Valvetrain sohc
Oil capacity 4.3 L
Coolant 7.0 L
Engine layout Front Longitudinal

Drivetrain & transmission

Drive Rear Wheel Drive
Powertrain architecture Internal Combustion Engine
Drivetrain architecture The Internal Combustion Engine Ice Drives The Rear Wheels Of The Vehicle
Gearbox type manual
Gears 4
Gearbox code 242
Gearbox manufacturer getrag

Dimensions

Length 4355 mm
Width 1610 mm
Height 1380 mm
Wheelbase 2563 mm
Front track 1366 mm
Rear track 1373 mm
Boot space 404 L
Ground clearance 145 mm

Mass

Kerb weight 1030 kg

Consumption & emissions

Fuel combined 8.4 L/100km
Fuel urban 10.4 L/100km
Fuel extra urban 6.3 L/100km
Fuel tank 58.0 L

Chassis & brakes

Front brakes disc
Rear brakes disc
Steering type Steering Rack And Pinion

Efficiency ratios

Weight-to-power 9.8 kg/Hp, 101.9 Hp/tonne
Weight-to-torque 7.1 kg/Nm, 140.8 Nm/tonne

Other

Start Of Production 1979
End Of Production 1982

Performance

Engine speed (1k/rpm)

Figures from catalog data; real-world values may differ.

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