BMW E30 Bolt Torque Spec Guide

Quick tip! We recommend always using a little blue Loctite to make sure nothing on your E30 gets loose! This is the version we recommend: https://amzn.to/3MWIUlO

 

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 recommends 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 recommends 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