11 14 151 Replacing rear crankshaft seal (M57T2)

Necessary preliminary tasks:

Unfasten oil sump screws on transmission end.

Loosen oil pan.

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

Insert all screws and tighten down end cover.

NOTE: Illustrations show M47TU.

Fig 3: Identifying End Cover Support Bushing

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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

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Make sure dowel sleeves (1) are correctly seated.

Fit sensor gear.

Fig 5: Identifying Dowel Sleeves

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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 leaks.