BMW 3-series E30 320iS S14 (S14B20) 320iS Main Page
Standard specifications – Italy or Portugal
| Engine |
2 door (AK95) |
4 door (AC95) |
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| Production dates: |
03/88-11/90 |
09/87-07/90 |
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| # cars produced |
2540 |
1206* |
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| Type: |
inline watercooled 4 |
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| Bore x Stroke mm |
93.4 x 72.6 |
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| Displacement cc |
1990 |
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| Valve Operation |
DOHC |
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| Valves / cyl |
4 |
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| Compression Ratio |
10.8 : 1 |
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| Injection: |
Motronic DME M1.3 |
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| Injection system pressure |
2.3-2.7 Bar |
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| Max Torque |
210 Nm @ 4900 rpm |
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| BHP (DIN) |
192 @ 6900 rpm |
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| Max rev count (limiter-RPM) |
7300 |
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| Engine type code |
S14 B20 |
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| Timing by: |
chain |
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| CO % (without Cat!) at idle |
1.0 % (+/- 0.5 %) ; 2.5% (my recommendation) |
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| HC (ppm) at idle |
< 600 |
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| Intake vacuum |
300 mBar +/- 50 mBar |
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| Max difference between cil. |
5 mBar |
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| Idle speed (RPM) |
880 (+/- 50) |
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| Oil pressure |
0.5 to 2.0 Bar at idle |
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| Oil temperature |
80 – 120 deg. C. |
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| Cooling fan |
Electrical two speed only |
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| Alternator (Bosch) |
0120469804 (90A) |
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| with built in controller no. |
N/A |
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| Alternator belt size (mm) |
10 x 865 |
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| Power steering belt size (mm) |
9.5 x 810 |
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| Air con belt size (mm) |
12.5 x 810 |
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| Battery |
12V 66Ah |
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| Starter motor (Bosch) |
0001108063 90A/1260W |
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| Chassis and Drivetrain | |||||
| Transmission |
dogleg sports 5 speed manual |
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| Front suspension |
MacPherson struts, coil springs, anti-roll bar |
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| Rear suspension |
Semitrailing arms, coil springs, anti-roll bar |
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| Axle Ratio (final drive) |
3.46 |
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| General | |||||
| Length x width x height (mm) |
4325 x 1645 x 1380 |
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| Wheelbase (mm) |
2570 |
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| Track front/rear (mm) |
1407/1415 |
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| Alignment (front toe in-mm) |
2.0 (+/- 0.6 mm) |
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| Alignment (rear toe in -mm) |
2.0 (+/- 0.8 mm) |
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| Brakes front/rear |
Vented disc / massive disc |
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| Minimum thickness |
22.5 mm (F) / 10.8 mm (R) |
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| Wheels/Tires |
alloy 14’’ x 6.5J ET 30 / 195/65R14H alloy 14’’ x 6J ET35 / 195/65VR14 cross spoke 15’’ x 7J ET 24 / 205/55VR15 (optional) |
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| Tyre pressure F/R regular |
2.0 / 2.3 bar |
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| Maximum Speed (kph) |
231 |
227 |
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| Acceleration 0-100 kph |
7.5 |
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| Weight (kgs) |
1200 |
1190 |
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| Cw/Cx aerodynamics |
0.34 |
0.37 |
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| Fuel consumption (DIN litres/100 km) | |||||
| @ 90 km/h |
6.3 |
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| @ 120 km/h |
8.0 |
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| city |
12.8 |
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| average |
9.0 |
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| Engine electrical | |||||
| Bosch part # / BMW part # | |||||
| Alternator |
0120469804 / 12 31 1 711 375 (90A) |
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|
Same as E30 316-316iM10-318iM10-M3 and |
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|
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, |
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|
E12 518-520M10-520i, E30 316-M3 |
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| Motronic engine mgmt |
0261200087 / 12 12 1 312 041 (ML 3.1) |
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|
Unique for 320iS |
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| Air flow meter |
0280203028 / 13 62 1 307 486 |
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|
Same as M3 |
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| In tank fuel pump |
0580453019 / 16 14 1 179 992 |
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|
Same as E30 316iM40-318iM40-320i-325i- |
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|
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, |
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|
E23 745i, E28 520i-525e-528e-M5, |
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|
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, |
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|
E28 518iM10-528i-535i-M5, |
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|
E34 525iM20-530iM30-535i, |
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|
E24 628CSi-635CSi-M6-M635CSi, |
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|
E23 728i-732i-735i, E32 730iM30-735i |
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| Ignition coil |
?? / 12 13 1 286 087 |
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|
Sames as most other BMW’s, |
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|
especially E23-E24-E28-E30-E34 |
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| Standard Equipment | Dogleg 5-speed | Dogleg 5-speed | |||
| 25% Limited Slip Diff | 25% Limited Slip Diff | ||||
| 6.5×14 cross spoke alloys | 6×14 bottlecap alloys | ||||
| Oil temp indicator | Oil temp indicator | ||||
| PAS | PAS | ||||
| Central locking | Central locking | ||||
| M-Tech II spoiler kit | Rear spoiler | ||||
| ABS | ABS | ||||
| Leather steering wheel & shifterShadowline | |||||
| Lights in rear view mirror | |||||
| Metallic paintwork | |||||
| Sports seats | |||||
| Valve clearance (cold-mm) |
0.26-0.35 |
0.26-0.35 |
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| Spark Plugs | |||||
| Bosch |
X5 DTC (Super-3) |
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| Electrode clearance |
0.7 mm |
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| Firing order |
1-3-4-2 |
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| Mounting torque |
23-25 Nm |
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| Miscellaneous | |||||
| Fuel tank (ltrs) |
64 (55 + 9) |
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| Cylinder head |
Aluminum |
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| Lubricant (motoroil) |
SAE 10W40 15W40 15W50 (north-western Europe) |
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| Change quantity (incl. oil cooler) |
4.10 litres |
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| Including oil filter add |
0.30 litres |
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| Oil cooler (separate) |
0.55 litres |
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| Operating oil temp. |
80-120 deg.C. |
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| Oil temp should not exceed |
130 deg.C. |
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| Gearbox oil – manual |
SAE 80 / Dexron2 |
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| Change quantity |
1.25 litres |
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| Gearbox ratios: |
1st 3.72 |
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|
2nd 2.40 |
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|
3rd 1.77 |
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|
4th 1.26 |
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|
5th 1.00 |
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|
R 4.23 |
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| Diff oil (25% limited slip) |
SAE 90 Transmission |
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| Change quantity diff |
1.70 litres |
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| Power steering |
Dexron ATF 77 |
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| Change quantity |
1.2 litres |
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| Coolant |
9.0 litres (9.5 litres with A/C) |
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| A/C change (R12) |
875 gr. +/- 25 gr. (1.93 +/- 0.05 lbs) |
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| Brake / Clutch |
ATE/Castrol/DOT 4 |
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| Fuel |
Unleaded ROZ 98 |
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| Catalytic converter |
N/A |
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* There seems to be some confusion about the production data for the four door version, but here’s the info I could find using ETK dealer software:
Chassis nos 0615001 u/i 0616074 = 1074 + nos AA98000 u/i AA98131 = 132, total four doors versions of the 320iS produced between 9/87 and 7/90: 1206
