11 14 005 Replacing front crankshaft radial seal (N54)

WARNING: This page is about a different car, the 2010 BMW X6, 2009 BMW X6, and 2008 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 0 371
11 0 372
11 4 370
11 9 221
11 9 222
11 9 224
11 9 231
11 9 232
11 9 233
11 9 234

See ENGINE - SPECIAL TOOLS (N54, N63) .

Necessary preliminary tasks:

Remove vibration damper

IMPORTANT: Do not release central bolt.
Risk of damage!
If the central bolt is released, the sprocket wheels of the timing chain and the oil pump will no longer be non-positively connected to the crankshaft. The camshafts may turn in relation to the crankshaft.
The timing must be adjusted again.

Fig 1: Warning - Do Not Release Central Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Turn back special tool 11 9 222.

Push special tool 11 9 221 onto crankshaft hub.

IMPORTANT: When screws are tightened down (special tool 11 9 224 ), crankshaft radial seal is pressed inwards approx. 1 mm and thus slackened for subsequent removal.

Insert screws (special tool 11 9 224 ) and tighten down to approx. 20 Nm.

Fig 2: Identifying Special Tool (11 9 222, 11 9 221, 11 9 224)

Courtesy of BMW OF NORTH AMERICA, INC.

Screw special tool 11 0 371 to 80 Nm into crankshaft radial seal.

Screw in spindle 11 0 372 .

Release crankshaft radial seal from crankcase.

NOTE: Repeat this operation several times if necessary.

Fig 3: Identifying Special Tool 11 0 371 And Spindle 11 0 372

Courtesy of BMW OF NORTH AMERICA, INC.

Carefully saw open crankshaft radial seal (1) at cutting line (2).

Remove crankshaft radial seal (1) from special tool 11 0 371 .

Fig 4: Identifying Crankshaft Radial Seal And Cutting Line

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: The following text describes installation and sealing between the engine block and crankshaft radial seal.
The engine block will not be leakproof at the outside of the crankshaft radial seal if you fail to comply with the individual work steps and the work sequence.

Installation:

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

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

NOTE: Graphic shows an N42 engine by way of example.

Fig 5: Identifying Sealing Surface And Crankshaft Radial Seal Running Surface

Courtesy of BMW OF NORTH AMERICA, INC.

Screw special tool 11 9 232 with screws (special tool 11 9 234 ) to crankshaft hub.

Fig 6: Identifying Special Tool (11 9 232, 11 9 234)

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Support bushing (1) is contained in scope of delivery of crankshaft radial seal (2).

When crankshaft radial seal (2) is installed, only support bushing (1) may be used as a slip bushing.

Crankshaft radial seal (2) has a groove on both left and right sides.

IMPORTANT: After installation, the grooves must be filled with sealing compound.

Fig 7: Identifying Support Bushing And Crankshaft Radial Seal

Courtesy of BMW OF NORTH AMERICA, INC.

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

Screw on metering needle.

Insert piston for pressing out or use special tool 11 4 370 .

Fig 8: Identifying Screw Caps And Injector

Courtesy of BMW OF NORTH AMERICA, INC.

Push support bushing (1) with crankshaft radial seal (2) onto special tool 11 9 232 .

IMPORTANT: Support bushing (1) remains on special tool 11 9 232 until crankshaft radial seal is drawn in.

Align groove (3) centrally to crankcase partition (4).

Coat both grooves (3) on crankshaft radial seal (2) with Loctite primer, manufacturer's number 171000, and expose to air for approx. one minute.

Fig 9: Identifying Support Bushing, Crankshaft Radial Seal, Groove And Crankcase Partition

Courtesy of BMW OF NORTH AMERICA, INC.

Draw crankshaft radial seal with special tool 11 9 231 in conjunction with special tool 11 9 233 into crankcase until flush.

Fig 10: Identifying Special Tool (11 9 231, 11 9 233)

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 crankshaft radial seal and coat crankcase partition on engine block.

NOTE: Graphic shows an N42 engine by way of example.

Fig 11: Inserting Brush With Loctite Primer, Manufacturer Number 171000 Into Grooves On Crankshaft Radial Seal

Courtesy of BMW OF NORTH AMERICA, INC.

Using injector/syringe (2), fill both grooves (3) flush with sealant.

NOTE: Graphic shows an N42 engine by way of example.

Fig 12: Filling Both Grooves Flush With Sealant Using Injector/Syringe

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Loctite primer, manufacturer's number 171000, binds the Loctite sealing compound, manufacturer's number 128357, and prevents leakage.

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

NOTE: Graphic shows an N42 engine by way of example.

Fig 13: Coating Surface Of Sealing Compound In Both Grooves With Loctite Primer, Manufacturer Number 171000

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.