11 14 005 Replacing Front Crankshaft Radial Seal (S85)

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW M5, 2009 BMW M6, 2009 BMW M5, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 5 331
11 5 332
11 5 333
11 7 231
23 0 490

IMPORTANT: A radial shaft seal is damaged if it is supplied without a support bushing.
Sealing lip of radial shaft seal is highly sensitive.
Sealing lip must not be kinked.
Do not touch the sealing lip with your fingers.
The functional reliability of the radial shaft seal is no longer guaranteed and it must not be fitted.

Necessary preliminary tasks:

Remove fan cowl with electric fan. See 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (M5) or 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (M6) .
Remove vibration damper .
Remove radiator. See REMOVING RADIATOR COVER (M5) or 17 11 000 REMOVING AND INSTALLING RADIATOR (M6) .

Lay special tool 11 2 386 on crankshaft.

Fig 1: Identifying Special Tool (11 2 386) On Crankshaft

G06203093

Courtesy of BMW OF NORTH AMERICA, INC.

Screw special tool 11 6 360 to 80 Nm into radial shaft seal. Release radial seal from housing. Repeat the operation several times if necessary.

Fig 2: Screwing Special Tool (11 6 360) Into Radial Seal

G06203094

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Carefully saw open old radial shaft seal with an iron saw from special tool 11 6 360.

Remove remnants of sealant from sealant outlet (1) on left and right.

Apply Drei Bond 2.1 sealant to sealant outlet (1) on left and right.

Fig 3: Identifying Sealant Outlet

G04741561

Courtesy of BMW OF NORTH AMERICA, INC.

Secure special tool 11 5 331 with screws (1).

IMPORTANT: Pay attention to dowel pin.

Fig 4: Identifying Special Tool 11 5 331

G04741562

Courtesy of BMW OF NORTH AMERICA, INC.

Push special tool 11 7 231 onto special tool 11 5 331 in direction of arrow.

Fig 5: Pushing Special Tool 11 7 231 Onto Special Tool 11 5 331

G04741563

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Remove support ring from radial shaft seal.

IMPORTANT: Sealing lip of radial shaft seal is highly sensitive.
Sealing lip must not be kinked.
Do not touch the sealing lip with your fingers.

Push radial shaft seal (1) uniformly by way of fitting aid 11 7 231 onto special tool 11 5 331.

Position radial shaft seal approx. 5 mm before crankcase.

Remove special tool 11 7 231.

Fig 6: Pushing Radial Shaft Seal

G04741564

Courtesy of BMW OF NORTH AMERICA, INC.

Press in radial shaft seal (1) with special tools 11 5 332 and 11 5 333.

Fig 7: Identifying Radial Shaft Seal, Special Tools 11 5 332 And 11 5 333

G04741565

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Setting time of radial shaft seal approx. 1 hour.

Correct engine oil level if necessary.