11 14 151 Replacing crankshaft radial seal (N12)

Special tools required: 

• 11 9 611
• 11 9 612
• 11 9 613

Necessary preliminary tasks: 

• Remove transmission. See AUTOMATIC TRANSMISSION or MANUAL TRANSMISSION .
• Remove FLYWHEEL .

Brake off PTFE ring (2) with a drift (1).

Fig 1: Braking Off PTFE Ring With Drift

Courtesy of BMW OF NORTH AMERICA, INC.

Secure special tool 11 9 611 with supplied screws (1) to crankshaft.

Fig 2: Identifying Screws And Special Tool (11 9 611)

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Position PTFE ring (1) with supporting ring (2) on special tool 11 9 611.

Push PTFE ring (1) in direction of arrow over supporting ring (2) onto crankshaft.

Fig 3: Pushing PTFE Ring Over Supporting Ring Onto Crankshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Attach special tool 11 9 612.

Draw in PTFE ring with special tool 11 9 613.

Fig 4: Identifying Special Tools (11 9 612 And 11 9 613)

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Screw in special tool 11 9 612 up to engine block.

Fig 5: Identifying Special Tools (11 9 612 And 11 9 613)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.