11 14 141 Replacing radial shaft seal in lower timing case cover (N63)

Special tools required:

11 9 410
11 9 420

See ENGINE - SPECIAL TOOLS (N54, N63) .

Necessary preliminary tasks:

Removing vibration damper

Position all levers (2) horizontally to pull off radial shaft seal (1).

Turn back spindle of special tool 11 9 410 until all levers (2) can be positioned on sealing lip.

Fig 1: Identifying Radial Shaft Seal With Special Tool (11 9 410)

Courtesy of BMW OF NORTH AMERICA, INC.

Turn all levers (2) so that they grip behind radial shaft seal (1).

Turn spindle (3) on special tool 11 9 410 to remove radial shaft seal (1).

Fig 2: Removing Radial Shaft Seal With Special Tool (11 9 410)

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Radial shaft seal (1) may only be supported with "support sleeve" (2).

If the radial shaft seal (1) is stored for more than six months without the support sleeve (2), its operational reliability will no longer be guaranteed.

Radial shaft seal (1) must not be reused in this eventuality!

IMPORTANT: The sealing lip of the radial shaft seal (1) is highly sensitive and must not be kinked under any circumstances.

Do not touch the sealing lip with your fingers.

Fig 3: Identifying Radial Shaft Seal With Support Sleeve

Courtesy of BMW OF NORTH AMERICA, INC.

Remove support sleeve (2) from radial shaft seal (1).

Fit radial shaft seal (1) on lower timing case cover.

Fig 4: Identifying Radial Shaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Using special tool 11 9 420 and central bolt (3), screw radial shaft seal into lower timing case cover until flush.

Fig 5: Identifying Special Tool 11 9 420 And Central Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.