11 66 000 Removing and installing or replacing vacuum/oil pump (N47 D20 O1)

IMPORTANT: It is possible to remove and install the vacuum oil pump without removing the transmission.

Necessary preliminary work

Release screws (1).

Remove intake snorkel in direction of arrow.

Fig 1: Removing Intake Snorkel

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Release screw (1).

Fig 2: Identifying Screw

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Release screws (1).

Installation note:

Clean and blow out thread

Fig 3: Identifying Screws

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Release screws (1).

When installed, the oil pump chain must be fed out from the sprocket wheel of the oil pump drive gear; the sprocket wheel cannot be removed.

NOTE: Illustration shows gear case cover removed.

Fig 4: Identifying Gear Case Cover Screw

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Oil vacuum pump must be fed out at chain drive (1).

Fig 5: Identifying Chain Drive

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Feed out oil vacuum pump (1) in direction of arrow and remove.

Installation in reverse sequence.

Installation note:

Clean all sealing surfaces.

Fig 6: Removing Oil Vacuum Pump

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Install all screws (1) and tighten down.

Fig 7: Identifying Screws

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Install and tighten down screws (1).

Fig 8: Identifying Gear Case Cover Screw

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Installation note:

Clean and blow out thread

Insert and secure screw (1).

Secure screw (1) with special tool 00 9 120 .

Fig 9: Identifying Screw

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Assemble engine.