11 22 500 Removing and installing/replacing flywheel (N52K)

WARNING: This page is about a different car, the 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. 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) N52K or 2400030 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (6HP19Z) N52K
Remove CLUTCH

For vehicles with optional extra SA205 (automatic transmission)

Secure flywheel (1) with existing transmission bolt (2) and special tool 11 9 260 .

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 all threads for flywheel screws in crankshaft.

Fig 1: Identifying Flywheel, Existing Transmission Bolt And Special Tool 11 9 260

Courtesy of BMW OF NORTH AMERICA, INC.

For vehicles without optional extra SA205 (automatic transmission)

Secure flywheel with transmission bolt (1) and special tool 11 9 260 and 11 9 265.

Installation:

Replace aluminum screws.

Release flywheel bolts with special tool 11 4 180 /

Tightening torque 11 22 2AZ .

Installation:

Flywheel is secured with a dowel pin.

Fit new flywheel screws.

Clean all threads for flywheel screws in crankshaft.

Fig 2: Tightening Flywheel Bolts Using Special Tool (11 4 180)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.