BMW E30 Bolt Torque Spec Guide

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Basic Servicing Parts

Wheels Bolts - 100Nm

Spark Plugs (non M10 Engine) - 30 to 33Nm

Spark Plugs (M10 Engine) - 20 to 30Nm

Oil Sump Plug (M12) - 25Nm

Oil Sump Plug (M22) - 60Nm

Oxygen Sensor - 30 to 33Nm

Manual Transmission Sump Plug - 40 to 60Nm

Auto Transmission Sump Plug - 16Nm

 

Engine

Timing Chain Tensioner Plug - 35Nm

Timing Belt Tensioner Bolts - 22Nm

Timing Chain/Belt Cover to Engine (M6 Bolts) - 10Nm

Timing Chain/Belt Cover to Engine (M8 Bolts) - 22Nm

Timing Chain/Belt Cover to Engine (M10 Bolts) - 47Nm

Camshaft Sprocket-to-Camshaft Bolt (M10 & M30 Engines) - 10Nm

Camshaft Sprocket-to-Camshaft Bolt (M20 & M40 Engines) - 65Nm

Flange to Camshaft (M30 Engine) - 145Nm

Crankshaft Pulley Bolts - 22Nm

Crankshaft Hub Bolt/Nut (M10 Engine) - 190Nm

Crankshaft Hub Bolt/Nut (M10 Engine) - 410Nm

Crankshaft Hub Bolt/Nut (M10 Engine) - 440Nm

Crankshaft Hub Bolt/Nut (M10 Engine) - 310Nm

Cylinder Head Bolts M10 - 60Nm, wait 15mins & tighten additional 33° then another 25° with engine at normal working temperature.

Cylinder Head Bolts M20 (Hex-Head) - 40Nm, wait 15mins & tighten to 60Nm then another 25° with engine at normal working temperature.

Cylinder Head Bolts M20 (Torx Head) - 30Nm, wait 15mins & tighten additional 90° then another 90° with engine at normal working temperature.

Cylinder Head Bolts M30 (up to & in '87) - 60Nm, wait 15mins & tighten additional 33° then another 25° with engine at normal working temperature.

Cylinder Head Bolts M30 (from '88) - 60Nm, wait 15mins & tighten to 80Nm then another 35° with engine at normal working temperature.

Cylinder Head Bolts M40 & M42 - 30Nm, wait 15mins & tighten additional 90° then another 90° with engine at normal working temperature.

• BMW recommend replacing head bolts each time they're removed.

Intake Manifold to Cylinder Head Bolts (M8 Bolts) - 22Nm

Intake Manifold to Cylinder Head Bolts (M7 Bolts) - 15Nm

Intake Manifold to Cylinder Head Bolts (M6 Bolts) - 10Nm

Exhaust Manifold to Cylinder Head Bolts (M6 Bolts) - 10Nm

Exhaust Manifold to Cylinder Head Bolts (M6 Bolts) - 15Nm

Flywheel Bolts (Manual Transmission) - 105Nm

Flywheel Bolts (Auto Transmission) - 120Nm

Intermediate Shaft Sprocket Bolt (M20 Engine) - 60Nm

Sump to Block Bolts - 9 to 11Nm

Oil Pump Bolts (except M40 Engine) - 22Nm

Oil Pump Sprocket Bolts (M10 & M30 Engines) - 10Nm

Oil Pump Cover Plate to Engine Bolts (M20 & M40 Engines) (M6 Bolts) - 10Nm

Oil Pump Cover Plate to Engine Bolts (M20 & M40 Engines) (M8 Bolts) - 22Nm

Crankshaft Rear Oil Seal Retainer to Block Bolts (M6 Bolts) - 9Nm

Crankshaft Rear Oil Seal Retainer to Block Bolts (M6 Bolts) - 22Nm

Main Bearing Cap to Block Bolts (M40 Engine) - 20Nm then angle-tighten 50°

Main Bearing Cap to Block Bolts (All Other Engines) - 60Nm

Connecting Rod Cap Bolts/Nuts (M10 & M30 Engine) - 55Nm

Connecting Rod Cap Bolts/Nuts (M20 & M40 Engine) - 20Nm then angle-tighten 70°

Camshaft Bearing Caps (M40 Engine) - 10Nm

Intermediate Shaft Sprocket-to-Shaft Bolt (M20 Engine) - 60Nm

Oil Supply Tube bolt(s) (M6 normal & M8 banjo) - 10Nm

Oil Supply Tube bolt(s) (M5) - 5Nm

• BMW recommend replacing main bearing bolts each time they're removed.

Cooling System

Drain plug for coolant on engine block - 25Nm

Mechanical Cooling Fan Clutch to Water Pump nut - 40Nm

Mechanical Cooling Fan to Clutch Bolts - 10Nm

Water Pump Bolts (M6 Bolts) - 10Nm

Water Pump Bolts (M8 Bolts) - 22Nm

Thermostat Housing Bolts - 10Nm

Fueling System

Carburetor Mountings - 10Nm

Fuel Pump to Cylinder Head - 12Nm

Throttle Body nuts/bolts - 19 to 26Nm

Transmission

Manual

Output Shaft Flange Nut (ZF Transmission) - 100Nm

Output Shaft Flange Nut (Getrag Transmission) - 170Nm then loosen completely and then tighten to 120Nm

Transmission to Engine Hex Bolts (M8) - 22 to 27Nm

Transmission to Engine Hex Bolts (M10) - 47 to 51Nm

Transmission to Engine Hex Bolts (M12) - 66 to 82Nm

Transmission to Engine Torx Bolts (M8) - 20 to 24Nm

Transmission to Engine Torx Bolts (M10) - 38 to 47Nm

Transmission to Engine Torx Bolts (M12) - 64 to 80Nm

Flywheel Bolts (Manual Transmission) - 105Nm

Transmission Rear Support Nut - 22 to 24 Nm

Rubber Mountings - 43 to 48Nm

Manual Transmission Sump Plug - 40 to 60Nm

Auto

Transmission to Engine Hex Bolts (M8) - 24Nm

Transmission to Engine Hex Bolts (M10) - 45Nm

Transmission to Engine Hex Bolts (M12) - 82Nm

Transmission to Engine Torx Bolts (M8) - 21Nm

Transmission to Engine Torx Bolts (M10) - 42Nm

Transmission to Engine Torx Bolts (M12) - 63Nm

Transmission Rear Support to Body - 21Nm

Torque Convertor to Driveplate (M8) - 26Nm

Torque Convertor to Driveplate (M10) - 49Nm

Transmission Reinforcement Plate - 23Nm

Output Shaft Flange Nut - 100Nm

Fluid Cooler Lines - 35Nm

Fluid Filler Tube to Transmission Sump (3 HP 22) - 100 to 110Nm

Fluid Filler Tube to Transmission Sump (4 HP 22 H/EH) - 98Nm

Flywheel Bolts (Auto Transmission) - 120Nm

Automatic Transmission Sump Bolts (3 Speed) - 8 to 9Nm

Automatic Transmission Sump Bolts (4 Speed) - 5 to 7Nm

Auto Transmission Sump Plug - 16Nm

Clutch & Driveline

Clutch Master Cylinder Mounting Bolts - 22Nm

Clutch Slave Cylinder Bolts - 22Nm

Pressure Plate to Flywheel Bolts - 24Nm

Prop Shaft: Center UJ Yoke Mounting Bolt - 97Nm

Prop Shaft: Center Bearing Mounting Bolt - 21Nm

Prop Shaft: Splined Section Clamping Sleeve - 10Nm

Prop Shaft: Rear UJ to Final Drive Flange (Nyloc Nut) - 64Nm

Prop Shaft: Rear UJ to Final Drive Flange (Ribbed Nut) - 90Nm

Prop Shaft: Flexi Coupling to Transmission Flange (M10 Bolts, Grade 8.8) - 48Nm Prop Shaft: Flexi Coupling to Transmission Flange (M10 Bolts, Grade 10.9) - 64Nm Prop Shaft: Flexi Coupling to Transmission Flange (M12 Bolts, Grade 8.8) - 81Nm Prop Shaft: Flexi Coupling to Transmission Flange (M12 Bolts, Grade 10.9) - 100Nm

Driveshaft (M10 Bolt without locking teeth) - 83Nm

Driveshaft (M10 Bolt with locking teeth, Allen Type) - 96Nm

Driveshaft (M10 Bolt with locking teeth, Torx Type) - 100Nm

Driveshaft (M8 Bolt with locking teeth) - 64Nm

Driveshaft (M12 Bolts) - 110Nm

Driveshaft Nut - 200Nm

Pinion Shaft Flange Nut (M20 Bolts) - 185Nm MAX, make alignment marks before undoing and don't tighten past these.

Pinion Shaft Flange Nut (M22 Bolts) - 210Nm MAX, make alignment marks before undoing and don't tighten past these.

Braking

Front Caliper guide (mounting) Bolts - 30 to 35Nm

Front Caliper Bracket to Strut Housing Bolts - 123Nm

Rear Caliper guide (mounting) Bolts - 30 to 35Nm

Rear Caliper Bracket to Trailing Arm Bolts - 67Nm

Brake Hose to Caliper Fitting - 14 to 17Nm

Master Cylinder to Servo Nuts - 24Nm

Brake Servo Mounting Nuts - 22 to 24Nm

Wheel Bolts - 100Nm

Suspension

Front Suspension

Strut Damper Rod Nut (External Hex) - 65Nm

Strut Damper Rod Nut (Internal Hex) - 44Nm

Strut Cartridge Threaded Collar - 130Nm

Strut Upper Mounting Nuts - 22Nm

Front Control Arm to Steering Knuckle Balljoint Nut - 64Nm

Front Control Arm to Subframe Balljoint Nut - 83Nm

Front Control Arm Bush Bracket Bolts - 41Nm

Front Hub Nut - 290Nm

Anti-roll Bar to Connecting Link Bolt - 41Nm

Anti-roll Bar Mounting Brackets to Subframe - 22Nm

Anti-roll Bar Connecting Link to Bracket - 22Nm

Anti-roll Bar Connecting Link Bracket to Control Arm - 41Nm

Rear Suspension

Rear Shock Absorber to Upper Mounting Bracket - 12 to 15Nm

Rear Shock Absorber to Trailing Arm - 71 to 85Nm

Trailing Arm to Lower Mounting - 71 to 85Nm

Trailing Arm to Anti-roll Bar - 22 to 23Nm

Rear Hub Nut - 249Nm (M3 is 300Nm)

Steering System

Steering Wheel Retaining Nut - 79Nm

Steering Column Universal Joint Pinch Bolt - 22Nm

Steering Gear to Subframe Mounting Bolts - 41Nm

Track Rod End to Steering Arm Nut - 37Nm

Track Rod End Clamping Bolt - 14Nm

Steering Linkage Balljoints - 37Nm

• Please note: This is still Work in Progress*