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Home >> BMW >> 2012 >> 128i 2D Convertible, Eng CD N52, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair (N52K) >> Variable Valve Gear >> 11 37 010 Removing And Installing/Replacing Intermediate Levers (N52K) >> Notes

11 37 010 Removing And Installing/Replacing Intermediate Levers (N52K): Notes

Special tools required: 

IMPORTANT: Aluminum-magnesium materials. No  steel screws/bolts may be used due to the threat of electrochemical corrosion. A magnesium crankcase requires aluminum screws/bolts exclusively. Aluminum screws/bolts must be replaced each time they are released.  Aluminum screws/bolts are permitted with and without color coding (blue). For reliable identification: Aluminum screws/bolts are not magnetic  . Jointing torque and angle of rotation must be observed without fail (risk of damage)  .
NOTE: There are 2 different versions of the guide block
IMPORTANT: Establish size of guide blocks.
Version 1
Size 55.2 mm
Version 2
Size 58 mm
The description of version 2 starts on page 8.