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Home >> BMW >> 2008 >> 323i Automatic >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine - Repair - E90/E91 (-08); E92/E93 (N51/N52) >> Engine, General >> Mounting engine on assembly stand (N52K)

Mounting engine on assembly stand (N52K)

Special tools required: 

IMPORTANT: Aluminium-magnesium materials. 

No  steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminium screws/bolts exclusively.

Aluminium screws/bolts must be replaced each time they are released  .

Aluminium screws/bolts are permitted with and without color coding (blue).

For reliable identification:

Aluminium screws/bolts are not magnetic  .

Jointing torque and angle of rotation must be observed without fail (risk of damage). 

Necessary preliminary tasks: 

Bolt engine or engine block with steel bolts (1) and aluminium bolts (2) to special tool 11 4 440.

To release central bolt, bolt on special tools 11 9 261 and 11 9 265 as well.

Mount engine with special tool 11 3 370 to special tool 00 1 450.

Fig 1: Special Tools (11 9 261), (11 4 440), (00 1 450), Steel Bolts And Aluminium Bolts
G04751030Courtesy of BMW OF NORTH AMERICA, INC.