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.
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HOMESERVICE MANUALSBMW2023M3 COMPETITION XDRIVEREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICALINTAKE/EXHAUST VALVES & VALVE STEM SEALS, VARIABLE CAMSHAFT TIMING & VARIABLE VALVE LIFT CONTROL SYSTEMS - REPAIR M3 (G80)
2023 BMW M3 Competition xDrive
Intake/Exhaust Valves & Valve Stem Seals, Variable Camshaft Timing & Variable Valve Lift Control Systems - Repair M3 (G80)
2023 BMW M3 Competition xDriveSECTION Intake/Exhaust Valves & Valve Stem Seals, Variable Camshaft Timing & Variable Valve Lift Control Systems - Repair M3 (G80)
- 11 34 Intake/Exhaust Valves, Valve Stems Seals
- 11 34 552 Removing and installing/replacing all valves (cylinder head removed) (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- 11 34 560 Replacing all valve stem seals (cylinder head removed) (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- 11 34 715 Replace all valve springs (cylinder head removed) (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- 11 36 Variable Valve Timing Control System (VANOS)
- 11 36 042 Removing and installing/replacing intake camshaft adjuster (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- Releasing the VANOS central valve of the intake camshaft adjuster
- Removing the VANOS central valve of the intake camshaft adjuster
- Removing intake camshaft adjuster
- Installing the intake camshaft adjuster
- Installing the VANOS central valve of the intake camshaft adjuster
- Releasing VANOS central valve of the exhaust camshaft adjuster
- Installing the VANOS central valve of the exhaust camshaft adjuster
- Remove the test gauges for securing the camshafts
- Adjusting the camshafts with the special tool
- Pre-tensioning the timing chain with the special tool
- Tightening the VANOS central valve of the exhaust camshaft adjuster
- Tightening the VANOS central valve of the intake camshaft adjuster
- 11 36 044 Remove and install/replace the exhaust camshaft adjuster (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- Releasing VANOS central valve of the exhaust camshaft adjuster
- Removing the VANOS central valve of the exhaust camshaft adjuster
- Remove exhaust camshaft adjuster
- Install exhaust camshaft adjuster
- Installing the VANOS central valve of the exhaust camshaft adjuster
- Releasing the VANOS central valve of the intake camshaft adjuster
- Installing the VANOS central valve of the intake camshaft adjuster
- Remove the test gauges for securing the camshafts
- Adjusting the camshafts with the special tool
- Pre-tensioning the timing chain with the special tool
- Tightening the VANOS central valve of the exhaust camshaft adjuster
- Tightening the VANOS central valve of the intake camshaft adjuster
- 11 36 046 Removing and installing/replacing the intake and exhaust camshaft adjusters (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- Releasing the VANOS central valve of the intake camshaft adjuster
- Releasing VANOS central valve of the exhaust camshaft adjuster
- Removing the VANOS central valve of the intake camshaft adjuster
- Removing the VANOS central valve of the exhaust camshaft adjuster
- Remove exhaust camshaft adjuster
- Removing intake camshaft adjuster
- Installing the intake camshaft adjuster
- Install exhaust camshaft adjuster
- Installing the VANOS central valve of the intake camshaft adjuster
- Installing the VANOS central valve of the exhaust camshaft adjuster
- Remove the test gauges for securing the camshafts
- Adjusting the camshafts with the special tool
- Pre-tensioning the timing chain with the special tool
- Tightening the VANOS central valve of the exhaust camshaft adjuster
- Tightening the VANOS central valve of the intake camshaft adjuster
- 11 36 125 Removing and installing/replacing intake VANOS central valve (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- Releasing the VANOS central valve of the intake camshaft adjuster
- Removing the VANOS central valve of the intake camshaft adjuster
- Installing the VANOS central valve of the intake camshaft adjuster
- Releasing VANOS central valve of the exhaust camshaft adjuster
- Installing the VANOS central valve of the exhaust camshaft adjuster
- Remove the test gauges for securing the camshafts
- Adjusting the camshafts with the special tool
- Pre-tensioning the timing chain with the special tool
- Tightening the VANOS central valve of the exhaust camshaft adjuster
- Tightening the VANOS central valve of the intake camshaft adjuster
- 11 36 126 Remove and install/replace the exhaust VANOS central valve (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- Releasing VANOS central valve of the exhaust camshaft adjuster
- Removing the VANOS central valve of the exhaust camshaft adjuster
- Installing the VANOS central valve of the exhaust camshaft adjuster
- Releasing the VANOS central valve of the intake camshaft adjuster
- Installing the VANOS central valve of the intake camshaft adjuster
- Remove the test gauges for securing the camshafts
- Adjusting the camshafts with the special tool
- Pre-tensioning the timing chain with the special tool
- Tightening the VANOS central valve of the exhaust camshaft adjuster
- Tightening the VANOS central valve of the intake camshaft adjuster
- 11 36 127 Removing and installing/replacing both VANOS central valves (right, where applicable) (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- Releasing the VANOS central valve of the intake camshaft adjuster
- Releasing VANOS central valve of the exhaust camshaft adjuster
- Removing the VANOS central valve of the intake camshaft adjuster
- Removing the VANOS central valve of the exhaust camshaft adjuster
- Installing the VANOS central valve of the intake camshaft adjuster
- Installing the VANOS central valve of the exhaust camshaft adjuster
- Remove the test gauges for securing the camshafts
- Adjusting the camshafts with the special tool
- Pre-tensioning the timing chain with the special tool
- Tightening the VANOS central valve of the exhaust camshaft adjuster
- Tightening the VANOS central valve of the intake camshaft adjuster
- 11 36 658 Removing and installing/replacing both actuators (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- 11 36 042 Removing and installing/replacing intake camshaft adjuster (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- 11 37 Variable Valve Lift Control System (VALVETRONIC)
- 11 37 005 Removing and installing/replacing eccentric shaft (M3 base, M3 Competition)
- 11 37 010 Removing and installing/replacing intermediate levers (M3 base, M3 Competition)
- 11 37 020 Removing and installing/replacing servomotor for eccentric shaft (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS)
- 11 37 005 Removing and installing/replacing eccentric shaft (M3 Competition M xDrive, M3 CS)
- 11 37 010 Removing and installing/replacing intermediate levers (M3 Competition M xDrive, M3 CS)
- 11 40 Engine Oil Pressure Check
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.