11 14 151 Replacing the rear crankshaft seal (M57T2-SCR)

Necessary preliminary work:

Drain off engine oil
REMOVE FLYWHEEL

Unfasten oil sump screws on gearbox side.

Loosen oil sump.

Fig 1: Locating Oil Sump Screws On Transmission End

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Release bolt (2) and remove crankshaft sensor (3) in direction of arrow.

Remove multi-pole sensor gear.

Release bolts (1) and remove end cover.

IMPORTANT: Check oil sump gasket for damage after removing end cover.
If necessary, remove OIL SUMP and replace oil sump gasket.

NOTE: Illustration does not show oil sump.

Fig 2: Removing Crankshaft Sensor

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Lubricate contact face of crankshaft.

IMPORTANT: When installing the end cover with crankshaft seal on the crankshaft, only the "support bushing (1)" may be used as a mounting tool.
Push on end cover with support bushing (1) straight and without tilting sideways.

Fig 3: Identifying Support Bushing

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Insert all screws and tighten down end cover.

NOTE: Illustrations show M47TU.

NOTE: Store the support bushing (1) of the new crankshaft seal version as a "special tool".

The old and new crankshaft seal versions can be installed with the support bushing (1).

Fig 4: Identifying Support Bushing Of Crankshaft Seal

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Make sure fitting bushes (1) are correctly seated.

Fit sensor gear.

Fig 5: Identifying Fitting Bushes

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NOTE: The end cover is supplied in the set with a built-in radial shaft seal and a support bushing. The support bushing is fitted on the crankshaft seal (to provide protection during transportation and storage).

Assemble engine.

Check engine for leak tightness.