Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2020 BMW M4 CSFACTORY OEM SERVICE PROCEDURE
Engine - Repair -- M4 (F82 & F83)
- General And Safety Information
- 00 Danger of poisoning if oil is ingested/absorbed through the skin
- 00 Risk of injury if oil comes into contact with eyes and skin
- 00 Safety information for working on vehicles with automatic engine start-stop function (MSA)
- 00 Safety instructions for handling oil
- 11..... Equipment recoding special tool number of the transverse member for fixing the engine in the installation location
- Engine identification
- Handling components after flood damage
- Overview of consumables (BMW parts catalogue)
- 11 00 Engine
- 11 12 Cylinder Head
- Removing and installing/sealing cylinder head cover (S55 engine)
- Removing and installing all ignition coils and injector wells (S55 engine)
- Removing and installing/replacing acoustic cover (S55 engine)
- Removing and installing cylinder head (S55 engine)
- Replacing cylinder head gasket (S55 engine)
- Removing and installing/replacing corrosion protection cover (S55 engine)
- Grinding cylinder head lower face (S55 engine)
- Checking cylinder head on watertightness (S55 engine)
- 11 13 Engine Oil Pan
- 11 14 Housing Cover
- 11 21 Crankshaft And Bearings
- 11 22 Flywheel
- 11 23 Vibration Damper
- 11 24 Connecting Rod With Bearing
- 11 25 Pistons
- 11 28 Drive Belt
- 11 31 Camshaft
- Checking camshaft timing (S55 engine)
- Removing and installing/replacing intake camshaft (S55 engine)
- Removing and installing/replacing exhaust camshaft (S55 engine)
- Replace the hub for the vibration damper (S55 engine)
- 11 31 051 Replacing timing chain (S55 engine)
- 11 31 090 Installing and removing/replacing chain tensioner piston (S55 engine)
- 11 31 505 Adjusting timing of camshaft(s) (S55 engine)
- 11 33 Rocker Arms
- 11 34 Valves
- 11 36 Variable Camshaft Timing Control
- 11 37 VALVETRONIC Variable Valve Lift System
- 11 40 Oil Supply
- 11 41 Engine Oil Pumps
- 11 42 Oil Filter And Pipes
- 11 51 Water Pump
- 11 53 Coolant Thermostat And Lines
- Removing and installing/replacing coolant thermostat (S55 engine)
- Removing and installing coolant return line (S55 engine)
- Removing and installing coolant feed line to exhaust turbocharger (S55 engine)
- Removing and installing coolant feed line from exhaust turbocharger to auxiliary coolant pump (S55 engine)
- 11 61 Intake System
- 11 65 Turbocharger
- 11 66 Vacuum Pump
- 11 78 Oxygen Sensors
- Removing and installing/replacing oxygen control sensor of cylinders 1-3 (S55 engine)
- Removing and installing/replacing oxygen control sensor of cylinders 4-6 (S55 engine)
- Removing and installing/replacing oxygen monitoring sensor for cylinders 4-6 (S55 engine)
- Removing and installing/replacing oxygen monitoring sensor, cylinders 1-3 (S55 engine)
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.