11 14 005 Replacing Front Crankshaft Radial Seal (N54)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2010 BMW 335xi, 2010 BMW 335i, 2009 BMW 335xi, 2009 BMW 335i, and 2008 BMW 335xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 4 370
11 9 221
11 9 222
11 9 223
11 9 224
11 9 231
11 9 232
11 9 233

Necessary preliminary tasks:

Remove vibration damper. (See 11 23 010 REMOVING AND INSTALLING OR REPLACING VIBRATION DAMPER (N54) )

IMPORTANT: Do not release central bolt.

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 to the crankshaft can warp (risk of damage) .

The timing must be adjusted again. (See 11 31 505 ADJUSTING CAMSHAFT TIMING (N54) )

Fig 1: Identifying Central Bolt

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Turn back special tool 11 9 222.

Push special tool 11 9 221 onto crankshaft.

IMPORTANT: When screws are tightened down (special tool 11 9 224), 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 9 221), (11 9 224) & (11 9 222)

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Insert screws (special tool 11 9 223) and screw in until they make contact without play.

IMPORTANT: Do not overload special tool 11 9 223 (metal screws).

Fig 3: Identifying Special Tool (11 9 223)

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Remove screws (special tool 11 9 224).

Fig 4: Identifying Special Tool (11 9 224)

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Insert screw (special tool 11 9 222) carefully and slowly and withdraw radial seal (1).

Fig 5: Identifying Special Tool (11 9 222)

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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 6: Identifying Sealing Surface & Running Surface

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NOTE:

Support sleeve (1) is supplied with radial seal (2).

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

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 Sleeve With Radial Seal

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Attach support bushing (2) with radial shaft seal (1).

Push on radial shaft seal (1) in direction of arrow.

Fig 8: Pushing On Radial Shaft Seal

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Pay attention to opening on radial shaft seal (1) on left and right.

Remove support bushing (2).

Fig 9: Identifying Radial Shaft Seal & Support Bushing

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IMPORTANT:

The following text describes installation and sealing between the engine block and radial seal.

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

NOTE: The required parts are available from the BMW Parts Service (EPC).

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

Screw on metering needle.

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

Fig 10: Identifying Injector & Cap Screw

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Fit special tool 11 9 232.

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

Fig 11: Identifying Special Tool (11 9 232)

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

Fig 12: Identifying Special Tool (11 9 232) & (11 9 233)

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Fig 13: Identifying Radial Shaft Seal

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