11 66 000 Removing and installing or replacing vacuum pump (S63)

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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 cover 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 HOLDER for control units.
Detach vacuum line from vacuum pump.

Release screws (1).

NOTE: Screws (1) are secured against falling out.

Remove vacuum pump (2).

Fig 1: Identifying Vacuum Pump Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Drive (1) must be rotated into correct position prior to installation.

Tightening torque. 11 66 1AZ .

Installation note:

Replace sealing ring (2) and coat with grease to facilitate fitting.

Fig 2: Identifying Vacuum Pump Drive And Sealing Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Align vacuum pump drive to groove (1) of intake camshaft.

Vacuum pump can best be installed when groove (1) is vertically aligned.

Graphic N63.

Fig 3: Aligning Vacuum Pump Drive To Groove Of Intake Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Check function of DME.

Check vacuum pump for leaks and correct operation.