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 MANUALSBMW2018740I XDRIVEREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE - VALVE CONTROLS - REPAIR (G12)
2018 BMW 740i xDrive
Engine - Valve Controls - Repair (G12)
2018 BMW 740i xDriveSECTION Engine - Valve Controls - Repair (G12)
- 11 37 Valvetronic
- 11 37 010 Removing and installing/replacing intermediate levers (740e xDrive PHEV 2017-2019)
- 11 37 020 Removing and installing/replacing servomotor for eccentric shaft (740e xDrive PHEV 2017-2019)
- 11 37 005 Removing and installing/replacing eccentric shaft (745e xDrive PHEV 2020-2022)
- 11 37 010 Removing and installing/replacing intermediate levers (745e xDrive PHEV 2020-2022)
- 11 37 020 Removing and installing/replacing servomotor for eccentric shaft (745e xDrive PHEV 2020-2022)
- 11 37 010 Removing and installing/replacing intermediate levers (750i 2016-2019)
- 11 37 022 Removing and installing/replacing the servomotor for the left eccentric shaft (750i 2016-2019)
- Release screw connection for left engine mounting bracket
- Removing left engine mounting bracket
- Disconnect the rear knock sensor plug connection for cylinders 5-8
- Disconnecting front knock sensor plug connection for cylinders 5-8
- Disconnecting left boost pressure sensor plug connection for cylinders 5-8
- Removing intake system
- Remove the Valvetronic servomotor
- Remove the Valvetronic servomotor gasket
- Installing the radial shaft seal on the Valvetronic engine
- Oil the Valvetronic servomotor shaft
- Install the Valvetronic servomotor
- Cleaning sealing surface on cylinder head
- Installing left intake system
- Join the plug connection on the knock sensor in the rear for cylinders 5-8
- Join the plug connection at the knock sensor in front for cylinders 5-8
- Attach the plug connection on the boost pressure sensor on the left for cylinders 5-8
- Fasten screw connection for left engine mounting bracket
- Fastening front screw connection for left engine mounting bracket
- For the Valvetronic: Learn the stops with the diagnostic system
- 11 37 024 Removing and installing/replacing the servomotor for the right-hand eccentric shaft (750i 2016-2019)
- Remove right engine mounting bracket
- Disconnecting plug connection for the coolant/oil sensor
- Disconnect the plug connection on the boost pressure sensor on the right
- Releasing positive battery cable
- Removing transmission wiring harness
- Removing right intake system
- Remove the Valvetronic servomotor
- Remove the Valvetronic servomotor gasket
- Installing the radial shaft seal on the Valvetronic engine
- Oil the Valvetronic servomotor shaft
- Install the Valvetronic servomotor
- Installing right intake system
- Clipping in transmission wiring harness
- Clipping in positive battery cable
- Joining plug connection for the coolant/oil sensor
- Join the plug connection on the right boost pressure sensor
- 11 37 006 Remove and install/replace left eccentric shaft (750i xDrive 2016-2022)
- 11 37 008 Removing and installing/replacing eccentric shaft, right (750i xDrive 2016-2022)
- 11 37 012 Removing and installing/replacing left intermediate lever (750i xDrive 2016-2022)
- 11 37 014 Removing and installing/replacing intermediate lever, right (750i xDrive 2016-2022)
- 11 37 022 Removing and installing/replacing the servomotor for the left eccentric shaft (750i xDrive 2016-2022)
- 11 37 024 Removing and installing/replacing the servomotor for the right-hand eccentric shaft (750i xDrive 2016-2022)
RENDER: 1.0x
NO RELATED
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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.