BMW 3 Series 1.8 318iS (E30) (1989-1991)
Back to E30 ModelsEngine Code: 18 4S 1
Power: 100 kW (136hp) 6000 rpm
Engine Torque Specs
| Component | Torque |
|---|---|
| Cylinder head | Renew bolts30-35 Nm → 90° → 90° |
| Main bearings | Stage 1: 20-25 NmStage 2: 47°-53° |
| Big end bearings | Stage 1: 23 NmStage 2: 70° |
| Oil pump to cylinder block | 22 Nm |
| Sump bolts | 9 Nm |
| Sump drain bolt | 32 Nm |
| Flywheel/driveplate | 113-130 Nm |
| Clutch pressure plate | M8 - 8.8 = 25 NmM8 - 10.9 = 34 Nm (Use new bolts) |
| Crankshaft pulley/damper centre bolt | 300-320 Nm |
| Camshaft carrier/cap | M6 = 10 NmM7 = 15 NmM8 = 20 Nm |
| Camshaft/rocker cover | M6 = 10 NmM7 = 15 Nm |
| Inlet manifold to cylinder head | M8 = 22 NmM7 = 15 NmM6 = 10 Nm |
| Exhaust manifold to cylinder head | M6 = 10 NmM7 = 15 NmM8 = 23 Nm (Use new nuts) |
| Spark plugs | 20-30 Nm |
| Knock sensor (KS) | 20 Nm |
Chassis Tightening Torques
| Component | Torque |
|---|---|
| Front hub | 290 Nm |
| Rear hub | 200 Nm |
| Steering track rod end | 33-40 Nm |
| Brake disc to hub | Front: 16 NmRear: 16 Nm |
| Brake caliper to carrier | Front: 33 NmRear: 30Nm |
| Brake caliper/carrier to hub | Front: 123 NmRear: 67Nm |
| Back plate to hub | Rear: 65 Nm |
| Road wheels | 120±10 Nm |
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