Introduction |
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| Model Code: |
Coupe 2-door 1001 (EU) 1003 (US) 1005 (EU/JPN) |
Convertible 2-door BB01 (1988) BB05 (1989+) |
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| Production dates: | 07/85 - 12/90 | 06/88 - 06/91 | |
| # cars produced: | 17,184 | ??? | |
| Engine: | S14 B23 | ||
| Engine Type: | inline four, longitudinal, watercooled | ||
| Displacement: | 2302 CC | ||
| Compression Ratio: | 10.5 : 1 | ||
| Cylinder head: | Aluminium | ||
| Firing order: | 1-3-4-2 | ||
| Bore x Stroke: | 93.4 x 84.0 mm | ||
| Valve Operation: | DOHC | ||
| Valves: |
4 valves per cylinder, 45° v-shaped, 36.7 mm intake / 31.6 mm exhaust |
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| Valve clearance (below 35 °C): | 0.28-0.33 mm | ||
| Valve shims: |
33 mm Ø BMW shims interchangeable with Ferrari, Fiat, Lancia and Volvo shims |
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| Spark Plugs: | Bosch X 5 DTC | ||
| Electrode clearance: | 0.7 mm | ||
| Injection: | Motronic DME M1.3 | ||
| Injection system pressure: | 2.3-2.7 Bar | ||
| Injector Specs: |
Bosch EV1 0280150201 / BMW 13 64 1 273 272 254.4 cc/min | 182.9 g/min | 3 Bar Jetronic port / 2.4 Ohm |
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| Max Engine Torque: | 240 Nm @ 4750 rpm | ||
| Engine Power Output: |
197 BHP / 147 kW @ 6750 rpm (w/ catalyst) |
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| Max rev count (limiter-RPM): | 7300 rpm | ||
| Timing by: | double roller chain | ||
| Oil temperature: |
80 – 120 °C operating temp Do not exceed 130 °C Do not exceed 4000 rpm below 50 °C |
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| Cooling fan: | Electrical, two speed only | ||
| Battery: | 12 V 66 Ah | ||
Chassis & |
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| Transmission: |
Getrag 265/6 5-speed manual (US spec) Getrag 265/5 dogleg 5-speed manual (European spec) |
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| Clutch: | Single plate dry clutch | ||
| Gearbox ratios: | 1st 3.72 | ||
| 2nd 2.40 | |||
| 3rd 1.77 | |||
| 4th 1.26 | |||
| 5th 1.00 | |||
| R 4.23 | |||
| Axle Ratio (final drive): | 3.25 | ||
| Front suspension: |
McPherson struts, coil springs, torsion stabilizer bar, gas pressure shock absorbers |
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| Rear suspension: |
Semi-trailing arm, Minibloc-coil springs, torsion stabilizer bar, gas pressure shock absorbers |
General |
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| Length x width x height: | 4345 x 1680 x 1370 mm | ||
| Wheelbase: | 2562 mm | ||
| Weight: | 1200 kg | ??? kg | |
| Permissible Total Weight: | 1680 kg | ??? kg | |
| Cw (coeff) / Cx (drag area) aerodynamics: |
0.33 | 0.62 | |
| Track (front / rear): | 1412 mm / 1433 mm | ||
| Wheels & Tires: | alloy 15" x 7J ET 24 / 205/55VR15 | ||
| Tyre pressure (front / rear): | 2.0 / 2.3 bar | ||
| Maximum Speed: | 235 km/h | ??? km/h | |
| Acceleration 0-100 km/h: | 6.7 sec | ||
| Fuel consumption (DIN litres/100 km): | |||
| @ 90 km/h | 5.8 | ||
| @ 120 km/h | 7.5 | ||
| City | 11.6 | ||
| Mixed | 8.3 | ||
| Front Brakes: |
Single piston floating caliper, 280 mm vented disc |
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| Rear Brakes: |
Single piston floating caliper, 282 mm solid disc |
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| Minimum Disc Thickness (front / rear): |
??? / ??? | ||
Engine |
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| Bosch part # / BMW part # | |||
| Alternator: | 0120469804 / 12 31 1 711 375 (90A) | ||
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Same as E30 316-316iM10-318iM10-M3 and E28 518iM10 |
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| Starter motor: | 0001108063 / 12 41 1 312 130 (1.4 kW) | ||
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Same as E21 316-318-320M10-320i, E12 518-520M10-520i, E30 316-M3 |
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| Motronic DME: | 0261200071 / 12 12 1 311 899 | ||
| Unique for E30 M3 | |||
| Air flow meter: | 0280203028 / 13 62 1 307 486 | ||
| Same as E30 320is | |||
| In-tank fuel pump: | 0580453019 / 16 14 1 179 992 | ||
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Same as E30 316iM40-318iM40-320i, 325i-325iX-325e-M3 |
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| Throttle position sensor: | 0280120301 / 13 62 1 273 277 | ||
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Same as E30 320i-323i-325e-M3, E23 745i, E28 520i-525e-528e-M5, E24 M6-M635CSi, E34 M5(3.6) |
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| Fuel pressure regulator: | 0280160249 / 13 53 1 711 040 (3.0 Bar) | ||
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Same as E30 316iM10-318iM10-325i-M3, E28 518iM10-528i-535i-M5, E34 525iM20-530iM30-535i, E24 628CSi-635CSi-M6-M635CSi, E23 728i-732i-735i, E32 730iM30-735i |
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| Ignition coil: | ?? / 12 13 1 286 087 | ||
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Same as most other BMW’s, especially E23-E24-E28-E30-E34 |
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| Alternator belt: |
10 x 865 mm BMW # 11 23 1 709 638 |
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| Power steering belt: |
10 x 813 mm BMW # 32 42 1 316 785 |
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| Air con belt: |
12.5 x 810 mm BMW # 64 52 1 706 826 |
Miscellaneous |
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| Fuel tank capacity: | 70 litres (61 + 9) | ||
| Fuel: | Unleaded 98 | ||
| Catalytic converter: |
EU - N/A US - yes |
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| Engine Oil: |
SAE 10W40 15W40 15W50 (high temps 10W60) |
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| Oil quantity (with oil filter change): | 4.40 litres | ||
| Oil quantity (no oil filter change): | 4.10 litres | ||
| Oil filter, individual capacity: | 0.30 litres | ||
| Oil cooler, individual capacity: | 0.55 litres | ||
| Operating oil temp: | 80-120 °C | ||
| Oil temp to not exceed: | 130 °C | ||
| Gearbox oil: |
SAE 80 75W80 GL-4 |
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| Gearbox oil quantity: | 1.25 litres | ||
| Gearbox oil brands: [from forums, 2024] |
BMW MTF-LT2 (supercedes MTF1): 75W80, GL-4 synthetic Redline MTL: 75W80, GL-4 synthetic Swepco 201: 80W90, GL-5 dino Liquid Moly TopTec MTF5200: 75W80, GL-4 synthetic Fuchs Titan Sintofluid: 75W80, GL-4 synthetic Castrol Syntrans V FE: 75W80, GL-4 synthetic Ravenol MTF-2: 75W80W, GL-4 synthetic Motul MotylGear: 75W80, GL-4 & GL-5 synthetic |
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| Differential oil (25% limited slip): | SAE 90 Transmission | ||
| Differential oil quantity: | 1.70 litres | ||
| Power steering fluid: | Dexron III | ||
| Power steering fluid quantity: | 1.2 litres | ||
| Coolant quantity: | 9.0 litres (9.5 litres with A/C) | ||
| A/C charge (R12): | 875 gr. +/- 25 gr. (1.93 +/- 0.05 lbs) | ||
| Brake / Clutch fluid: | ATE / Castrol / DOT 4 | ||