11 00 Removing And Installing/Replacing Acoustic Cover (N52/N52K)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

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) .

Unfasten screws (1 and 3).

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

Lift off acoustic cover (4)

Fig 1: Releasing Oil Cap

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary tasks:

Remove microfilter housing. See 64 31 092 REMOVING AND INSTALLING/REPLACING MICROFILTER HOUSING (LOWER SECTION) .
Remove tension strut.

Release screws.

Tightening torque. See 11 12 7AZ in CYLINDER HEAD WITH COVER .

Remove acoustic cover.

Fig 2: Locating Acoustic Cover Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For purposes of improved clarity, illustration and descriptions shows wiring harness and tension strut removed.