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 MANUALSBMW2011535I STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE - VARIABLE VALVE TIMING CONTROL SYSTEM (VANOS), INTAKE PLENUM, TURBOCHARGER, WATER PUMP, THERMOSTAT, COOLANT LINES, EGR VALVE, EGR COOLER, OXYGEN SENSORS - REPAIRVARIABLE VALVE TIMING CONTROL SYSTEM (VANOS)N55 ENGINE11 36... REPLACING SCREW CONNECTION ON VANOS GEAR (N55)
2011 BMW 535i Standard
11 36... Replacing screw connection on VANOS gear (N55)
2011 BMW 535i StandardSECTION 11 36... Replacing screw connection on VANOS gear (N55)
Special tools required:
- 2 333 991
- 0 418 185
IMPORTANT:
Aluminum screws
Aluminum screws/bolts must be replaced each time they are released.
Joining torque and angle of rotation must be observed without fail (risk of damage).
In ideal conditions, screw temperature and component temperature are identical.
Maximum permissible difference between aluminum screw and VANOS gearbox 20°C.
Aluminum screws/bolts must be replaced each time they are released.
Joining torque and angle of rotation must be observed without fail (risk of damage).
In ideal conditions, screw temperature and component temperature are identical.
Maximum permissible difference between aluminum screw and VANOS gearbox 20°C.
Necessary preliminary tasks:
- Remove cylinder head cover.
IMPORTANT:
Crosswise tightening of aluminum screws is necessary.
Replies aluminum screws in sequence (1 to 4).
For this, the engine must be rotated at the central bolt by 360° at a time.
Mark all replaced aluminum screws with a colored mark.
NOTE:
Illustration shows Exhaust camshaft adjuster removed.
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.