11 14 151 Replacing crankshaft radial seal (N54) to 12.31.08

Special tools required: 

• 11 9 181 
• 11 9 182 
• 11 9 183 
• 11 9 184 
• 11 9 200 

See ENGINE - SPECIAL TOOLS (N54, N63) .

Necessary preliminary tasks: 

• Remove transmission.  See 24 00 030 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (GA6HP19Z) N54 .
• Remove flywheel  . 

Fig 1: Locating Radial Seal Six Removal Openings

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Identifying Rubber Coating On Top Side Of Radial Seal And Removal Opening

Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 11 9 200  . Insert metal screws into removal opening of radial seal and initially tighten without play (do not overtighten metal screws).

Screw in spindle (1) slowly and carefully and detach radial seal.

Fig 3: Identifying Spindle And Special Tool 11 9 200

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Clean sealing surface (1) and degrease thoroughly in area of housing partition.

Apply a light coat of oil to running surface (2) of radial shaft seal.

Fig 4: Identifying Sealing Surface And Running Surface Of Radial Shaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

When radial shaft seal (1) is installed, only support sleeve (4) may be used as a slip sleeve.

Radial shaft seal (1) has a groove (2) on both left and right sides.

Fig 5: Identifying Radial Shaft Seal And Groove

Courtesy of BMW OF NORTH AMERICA, INC.

Remove screw caps (1) from injector (2).

Screw on metering needle.

Insert piston for pressing out.

Injector (2) contains the sealing compound Loctite, manufacturer's number 193140.

Bottle (3) contains the primer Loctite, manufacturer's number 171000.

Fig 6: Identifying Screw Caps, Injector And Bottle

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Fit support sleeve (4) with radial shaft seal (1) on crankshaft.

Align groove (2) centrally to housing partition (3).

Coat both grooves (2) on radial shaft seal (1) with Loctite primer, manufacturer's number 171000, and expose to air for approx. one minute.

Push radial shaft seal (1) by hand as far as possible onto running surface.

Carefully remove support sleeve (4).

Fig 7: Identifying Support Sleeve, Radial Shaft Seal, Groove And Housing Partition

Courtesy of BMW OF NORTH AMERICA, INC.

Screw special tool 11 9 182  with screws (special tool 11 9 184  ) to crankshaft.

Fit spacer ring (1) on preassembled radial shaft seal.

Fig 8: Identifying Spacer Ring And Special Tools (11 9 182, 11 9 184)

Courtesy of BMW OF NORTH AMERICA, INC.

Draw in radial shaft seal and spacer ring with special tool 11 9 181  in conjunction with special tool 11 9 183  .

Then remove spacer ring again.

Fig 9: Identifying Special Tools (11 9 181, 11 9 183)

Courtesy of BMW OF NORTH AMERICA, INC.

Before filling with sealing compound:

Insert brush with Loctite primer, manufacturer's number 171000, as far as possible into grooves (1) on radial shaft seal and coat housing partition on engine block.

Fig 10: Inserting Brush With Loctite Primer, Manufacturer Number 171000 Into Grooves On Radial Shaft Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Fill both grooves (1) flush with Loctite sealing compound, manufacturer's number 193140.

Fig 11: Filling Both Grooves Flush With Loctite Sealing Compound, Manufacturer Number 193140

Courtesy of BMW OF NORTH AMERICA, INC.

Coat surface of sealing compound in both grooves (1) with Loctite primer, manufacturer's number 171000.

Fig 12: Coating Surface Of Sealing Compound In Both Grooves With Loctite Primer, Manufacturer Number 171000

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.