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Home >> BMW >> 2007 >> 750Li >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair (N62) >> 14 Housing Cover >> 11 14 151 Replacing Crankshaft Radial Shaft Seal (N62 / N62TU)

11 14 151 Replacing Crankshaft Radial Shaft Seal (N62 / N62TU)

Special tools required: 

(transmission side) 

Necessary preliminary tasks: 

Release screws (2).

Release screws (1).

Carefully remove end cover.

Fig 1: Identifying Cover Screws
G04739730Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT:

The sealing lip of the radial shaft seal is highly sensitive and must not be kinked.

Do not touch the sealing lip with your fingers.

Fig 2: Identifying Radial Shaft Seal
G04739731Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Support sleeve (2) is included in scope of delivery. If the radial shaft seal (1) is stored for longer than six months without the support sleeve (2), its operational reliability can no longer be guaranteed and it must not be reused.
The support sleeve (2) remains in the radial shaft seal and is used as a slip sleeve in the installation described later.
IMPORTANT:

Special tool 11 2 390 must not be used.

When the radial shaft seal is installed, only the support sleeve included in the scope of delivery may be used as a slip sleeve.

Fig 3: Identifying Support Sleeve
G04739732Courtesy of BMW OF NORTH AMERICA, INC.
NOTE:

The radial shaft seal can only be replaced completely with the end cover.

The gasket is an integral part of the end cover and cannot be replaced individually.

Installation: 

Check dowel sleeves (1) for damage and correct installation position.

Keep sealing faces clean and free of oil.

Coat contact points on joint along oil sump with Drei Bond 1209.

Fig 4: Identifying Dowel Sleeves
G04739733Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Lightly oil running surface of crankshaft.

Fit end cover (1) with support sleeve (2) on crankshaft and push on carefully.

Fig 5: Identifying Support Sleeve And Cover
G04739734Courtesy of BMW OF NORTH AMERICA, INC.

Insert screws (1) and initially tighten without play.

Insert screws (2) and initially tighten without play.

Tighten down screws (1).

Tighten down screws (2).

Fig 6: Identifying Down Screws
G04739730Courtesy of BMW OF NORTH AMERICA, INC.