11 14 151 Replacing crankshaft radial seal (N14)

Necessary preliminary tasks:

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

IMPORTANT: Risk of damage to crankcase and to crankshaft!

Fig 1: PTFE Ring And Drift

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Courtesy of BMW OF NORTH AMERICA, INC.

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: PTFE Ring, Supporting Ring And Installation Direction

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: Special Tool (11 9 612) And (11 9 613)

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 5: Special Tool (11 9 612) And (11 9 613)

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.