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11 00 Removing and installing/replacing acoustic cover (N52/N52K)

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IMPORTANT: Aluminium-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  ).

Unfasten screws (1 and 3).

If necessary, release oil cap (2) in direction of arrow.

Lift off acoustic cover (4)

Fig 1: Identifying Acoustic Cover, Oil Cap And Screws
G04725330Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary tasks: 

Release screws. Tightening torque 11 12 7AZ  .

Remove acoustic cover.

NOTE: For purposes of improved clarity, illustration and descriptions shows wiring harness and tension strut removed.
Fig 2: Locating Acoustic Cover
G04725331Courtesy of BMW OF NORTH AMERICA, INC.