11 22 500 Removing And Installing/Replacing Flywheel (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.

Special tools required:

For the following special tools, refer to ENGINE- SPECIAL TOOLS (N52K) .

11 4 180
11 9 260
11 9 265

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) .

Necessary preliminary tasks:

Remove transmission . See 23 00 017 REMOVING AND INSTALLING TRANSMISSION (GS6-17BZ) N51/N52/N52K/N53 or 24 00 032 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (GA6L45R) .
Remove clutch . See 21 21 500 REMOVING AND INSTALLING OR REPLACING CLUTCH (SAC 228) .

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.

Fig 1: Identifying Flywheel And Existing Transmission Bolt With Special Tool (11 9 260)

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten flywheel screws.

Tightening torque. See 11 22 1AZ in 11 22 FLYWHEEL .

Installation:

Flywheel (1) is secured with an alignment pin.

Fit new flywheel screws.

Clean all threads for flywheel screws in crankshaft.

For vehicles without optional extra SA205 (automatic transmission):

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

Installation:

Replace aluminum screws.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Release flywheel screws with special tool 11 4 180.

Tightening torque. See 11 22 2AZ in 11 22 FLYWHEEL .

Installation:

Flywheel is secured with a dowel pin.

Fit new flywheel screws.

Clean all threads for flywheel screws in crankshaft.

Assemble engine.