1122500 Removing and installing or replacing flywheel (N51)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

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).

Necessary preliminary tasks:

Remove transmission See 2300017 REMOVING AND INSTALLING TRANSMISSION (GS6-17BG) N51/N52/N52K/N53 or 2400032 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (GA6L45R) .
Remove CLUTCH .

Block flywheel (1) with special tool 11 9 260 HOLDER , use an old transmission screw for this purpose.

Installation:

Replace aluminum screws.

Unfasten flywheel screws.

Tightening torque: 11 22 1AZ .

Installation:

Flywheel (1) is secured with an alignment pin.

Fit new flywheel screws.

Clean crankshaft thread for flywheel screws.

Fig 1: Identifying Flywheel With Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

Secure flywheel with an old transmission screw (1) and special tools 11 9 260 HOLDER and 11 9 265.

Installation:

Replace aluminum screws.

Release flywheel screws with special tool 11 4 180 SCREWDRIVER INSERT .

Installation:

Flywheel is secured with a dowel pin.

Fit new flywheel screws.

Tightening torque: 11 22 2AZ .

Fig 2: Identifying Special Tools (11 9 255, 11 9 260 And 11 4 180)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.