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11 .. .. Mounting engine on assembly stand (N52)

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. 

The end faces of aluminium screws/bolts are painted blue for the purposes of reliable identification.

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: Identifying Special Tool (11 9 261), (11 9 265), (11 4 440),(00 1 450), Steel Bolts And Aluminium Bolts
G04725373Courtesy of BMW OF NORTH AMERICA, INC.
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