11 66 000 Removing and Installing/Replacing Vacuum Pump (N63)

IMPORTANT: Installation Note:
Due To The Risk of Damage To The Engine Gaskets/Seals and The Lack of Brake Boosting, Make Sure Before Starting The Engine That All The Vacuum Lines Are Connected.

Vacuum Pump Is Fitted On Cylinder Head 1 To 4 At Rear On Intake Camshaft.

Necessary Preliminary Tasks:

Press Brake Pedal Several Times In Order To Reduce Vacuum Pressure In Brake Booster.
Remove Right CATALYTIC CONVERTER .
Remove Right Heat Shield.
Detach Vacuum Line From Vacuum Pump.

Release Screws (1).

Remove Heat Shield (2).

Remove Vacuum Hose.

Fig 1: Identifying Screws

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Release Screws (1).

NOTE: Bolts (1) Are Secured Against Falling Out.

Release Screw (2).

Remove Vacuum Pump (3).

Fig 2: Identifying Vacuum Pump, Heat Shield, and Screws

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Drive (1) Must Be Rotated Into Correct Position Prior To Installation.

Installation Note:

Replace Sealing Ring (2) and Coat with Grease To Facilitate Fitting.

Fig 3: Identifying Drive and Sealing Ring

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Installation Note:

Align Vacuum Pump Drive To Groove (1) of Intake Camshaft.

Vacuum Pump Can Best Be Installed When Groove (1) Is Vertically Aligned.

Fig 4: Aligning Vacuum Pump Drive To Groove of Intake Camshaft

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Check Function of DME.

Check Vacuum Pump for Leaks and Correct Operation.