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 MANUALSBMW2023X4 M40IREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICALCAMSHAFTS -- REPAIR (G02)
2023 BMW X4 M40i
Camshafts -- Repair (G02)
2023 BMW X4 M40iSECTION Camshafts -- Repair (G02)
- 11 31 Camshafts
- Notes on checking and adjusting the timing (X4 xDrive30i)
- 11 31 005 Check the timing of the camshaft(s) (X4 xDrive30i 2019-2021)
- 11 31 025 Removing and installing/replacing intake camshaft (X4 xDrive30i 2019-2021)
- 11 31 028 Removing and installing/replacing exhaust camshaft (X4 xDrive30i 2019-2021)
- 11 31 052 Replacing both timing chains (X4 xDrive30i 2019-2021)
- 11 31 090 Remove and install/replace chain tensioner piston (X4 xDrive30i 2019-2021, X4 M40i 2019-2021)
- 11 31 505 Adjusting the timing of the camshaft(s) (X4 xDrive30i 2019-2021)
- 11 31 005 Check the timing of the camshaft(s) (X4 xDrive30i 2022-)
- 11 31 025 Removing and installing/replacing intake camshaft (X4 xDrive30i 2022-)
- 11 31 028 Removing and installing/replacing exhaust camshaft (X4 xDrive30i 2022-)
- 11 31 051 Replacing the timing chain (X4 xDrive30i 2022-)
- 11 31 090 Remove and install/replace chain tensioner piston (X4 xDrive30i 2022-)
- 11 31 505 Adjusting the timing of the camshaft(s) (X4 xDrive30i 2022-)
- Adjust the timing of the camshaft
- Installing the VANOS central valve of the exhaust camshaft adjuster
- Installing the VANOS central valve of the intake adjuster
- Pre-tensioning the timing chain with the special tool
- Tightening the VANOS central valve of the intake adjuster
- Tightening the VANOS central valve of the exhaust camshaft adjuster
- 11 31 005 Check the timing of the camshaft(s) (X4 M40i 2019-2021)
- 11 31 025 Removing and installing/replacing intake camshaft (X4 M40i 2019)
- 11 31 028 Removing and installing/replacing exhaust camshaft (X4 M40i 2019-2021)
- 11 31 052 Replacing both timing chains (X4 M40i 2019-2021)
- 11 31 505 Adjusting the timing of the camshaft(s) (X4 M40i 2019-2021)
- 11 31 005 Check the timing of the camshaft(s) (X4 M40i 2022-)
- 11 31 025 Removing and installing/replacing intake camshaft (X4 M40i 2020-2021)
- 11 31 025 Removing and installing/replacing intake camshaft (X4 M40i 2022-)
- 11 31 028 Removing and installing/replacing exhaust camshaft (X4 M40i 2022-)
- 11 31 051 Replacing the timing chain (X4 M40i 2019-2021)
- 11 31 051 Replacing the timing chain (X4 M40i 2022-)
- 11 31 090 Remove and install/replace chain tensioner piston (X4 M40i 2022-)
- 11 31 505 Adjusting the timing of the camshaft(s) (X4 M40i 2022-)
- Adjust the timing of the camshaft
- Installing the VANOS central valve of the exhaust camshaft adjuster
- Installing the VANOS central valve of the intake adjuster
- 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 adjuster
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:
- • 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.