11 14 005 Replacing front crankshaft seal (N54, N54T)

WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove VIBRATION DAMPER

IMPORTANT: Do not release central bolt.

Risk of damage!

If the central bolt is released, the sprockets 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: Identifying Central Bolt

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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 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 9 221, 11 9 224 And 11 9 222)

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

Screw in spindle 11 0 372.

Release crankshaft seal from crankcase.

NOTE: Repeat this operation several times if necessary.

Fig 3: Identifying Special Tool (11 0 372 And 11 0 371)

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

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

Fig 4: Identifying Crankshaft Radial Seal And Cutting Line

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IMPORTANT: The following text describes installation and sealing between the engine block and crankshaft seal.

The engine block will not be leakproof at the outside of the crankshaft seal if you fail to comply with the individual work steps and the work sequence.

Installation note:

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

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

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

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

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

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

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NOTE: Support bush (1) is supplied with crankshaft seal (2).

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

Crankshaft 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 Crankshaft Seal And Support Sleeve

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NOTE: The required parts are available from the BMW Parts Department (Electronic Parts Catalogue).

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 Injector, Sealing Compound And Bottle

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

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

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

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

Fig 9: Identifying Sleeve, Crankshaft Seal, Groove And Housing Partition With Special Tool (11 9 232)

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

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

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Before filling with sealing compound:

Insert brush with Loctite primer, manufacturer's number 171000, as far as possible into grooves (1) on crankshaft 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 Into Grooves On Crankshaft Seal

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

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

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

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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 Using Loctite Primer

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