BMW
3-series E21, >1980 European model
Standard specifications
- much more specs and graphics on post 81 page!
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Engine |
323i |
320i |
320/4 |
318 |
316 |
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Production dates: |
11/77 - 01/82 |
11/75 - 03/77 |
08/75 - 03/77 |
08/75 - 07/80 |
08/75 - 07/80 |
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Units produced |
137.107* |
98.899 |
118.399 |
93.209 |
239.154 |
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*also see bottom of ‘post 81’ specs page |
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Type: |
inline watercooled 6 |
inline watercooled 4 |
inline watercooled 4 |
inline watercooled 4 |
inline watercooled 4 |
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Bore x Stroke mm |
80 x 76.8 |
89 x 80 |
89 x 80 |
89 x 71 |
84 x 71 |
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Displacement cc |
2315 |
1990 |
1990 |
1766 |
1573 |
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Valve Operation |
SOHC |
SOHC |
SOHC |
SOHC |
SOHC |
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Valves
/ cyl |
2 |
2 |
2 |
2 |
2 |
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Compression
Ratio |
9.5
: 1 |
9.3
: 1 |
8.1
: 1 |
8.3
: 1 |
8.3
: 1 |
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Injection
/ Carburetor: |
Bosch
K-Jetronic |
Bosch
K-Jetronic |
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Max
Torque |
190Nm @ 4500 |
175Nm @ 4350 |
160Nm @ 3700 |
145Nm @ 4000 |
125Nm @ 4000 |
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BHP (DIN) |
143 @ 5800 |
125 @ 5700 |
109 @ 5800 |
98 @ 5800 |
90 @ 6000 |
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Engine type code |
M 20 |
M 10 |
M 10 |
M 10 |
M 10 |
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Timing by: |
belt |
chain |
chain |
chain |
chain |
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CO % |
1-2 |
3.0 (max) |
1.5 |
1.5 |
1.5 |
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Idle speed (RPM) |
850-950 |
850-950 |
850-950 |
850-950 |
850-950 |
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Chassis and Drivetrain |
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Transmission |
4 speed manual |
4 speed manual |
4 speed manual |
4 speed manual |
4 speed manual |
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Front suspension |
MacPherson struts, coil springs, anti-roll bar |
MacPherson struts, coil springs, anti-roll bar |
MacPherson struts, coil springs, anti-roll bar |
MacPherson struts, coil springs, anti-roll bar |
MacPherson struts, coil springs, anti-roll bar |
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Rear suspension |
Semitrailing arms, coil springs, anti-roll bar |
Semitrailing arms, coil springs |
Semitrailing arms, coil springs |
Semitrailing arms, coil springs |
Semitrailing arms, coil springs |
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Axle Ratio |
3.45 |
3.64 |
3.91 |
3.91 |
4.10 |
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General |
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Wheelbase (mm) |
2563 |
2563 |
2563 |
2563 |
2563 |
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Track front/rear (mm) |
1388/1401 |
1387/1396 |
1366/1376 |
1366/1376 |
1366/1376 |
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Brakes
front/rear |
Vented disc / solid disc |
Ventilated disc / Drum |
Solid disc / Drum |
Solid disc / Drum |
Solid disc / Drum |
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Wheels/Tires |
steel 13"x5.5J / 185/70HR13 |
steel 13"x5.5J / 185/70HR13 |
steel 13"x5J / 185/70HR13 |
steel 13"x5J / 185/70HR13 |
steel 13"x5J / 165SR13 |
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Maximum Speed (kph) |
200 |
182 |
170 |
165 |
160 |
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Acceleration 0-100 kph |
8.7 |
9.9 |
11.2 |
11.9 |
13.8 |
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Weight (kgs) |
1110 |
1090 |
1030 |
1020 |
1010 |
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55 |
55 |
44 |
36 |
36 |
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Standard Equipment |
(including equipment of lower range models) |
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Electronic ignition |
Model-badge in front grill |
Dual halogen headlights H4 |
Halogen headlights H4 |
Chrome window frames |
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Luxury interior trim, w/cloth door panels |
Rev counter |
Lighted glove compartment |
Optional rear safety belts: 2 auto, 1 manual |
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Lighted hood & bonnet |
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Toolbox |
Bilux headlights |
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Quartz clock |
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Options |
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Power steering rack 5-speed manual gearbox 3-speed automatic gearbox Tinted glass Manual sunroof, metal Leather 3-spoke sports steering wheel Leather gear knob Headlight wipers Rev counter Alloy wheels (13") Rear headrests Recaro and/or leather seats Extended tool kit Powered antenna Fog lights (mounted under front bumper) Clearcoated metallic paint |
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All models |
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Valve margins (cold) |
in (mm) |
out (mm) |
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Fuel tank (ltrs) |
58 (51+7) |
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4 cyl. > 81 |
.15 |
.20 |
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Cylinder head |
Aluminum |
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316 81> |
.20 |
.20 |
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Lubricant (motoroil) |
SAE
10W40 SE |
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318i 81> |
.20 |
.25 |
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Gearbox oil - manual |
SAE 80 |
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all 6-cyl. |
.25 |
.25 |
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Change
quantity 4 sp. |
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Change
quantity 5 sp. |
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Gearbox oil - auto |
Dexron ATF |
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Firing order |
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Change
quantity auto |
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4 cylinder |
1 - 3 - 4 - 2 |
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Diff oil |
SAE 90 Transmission |
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6 cylinder |
1 - 5 - 3 - 6 - 2 - 4 |
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Change quantity diff |
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Power steering |
Dexron
ATF 77 |
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Change
quantity |
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Coolant
4-cylinder |
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Coolant
6-cylinder |
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Brake / Clutch |
ATE/Castrol/DOT 4 |
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Fuel |
Leaded ROZ 98 |
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Units
produced total for all E21 3-series 1978-1982: 1,001,521