11 66 000 Removing and installing/replacing vacuum pump (N20, N26)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2016 BMW 328i xDrive, 2016 BMW 328d xDrive, 2015 BMW 328i xDrive, 2015 BMW 328d xDrive, and 2014 BMW 328i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Press brake pedal several times in order to reduce vacuum pressure in brake booster.
Remove ACOUSTIC COVER
Remove SOUND INSULATION .

Release vacuum line (1) from both plug connections and remove.

Fig 1: Releasing Vacuum Line From Both Plug Connections

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NOTE: For purposes of clarity, this work step is shown on the engine after it has been removed.

Release positive battery cable (1) from vacuum pump

Release screw and pull off vacuum line (2) of exhaust turbocharger control unit.

Release screws (3) and remove vacuum pump towards rear.

Fig 2: Vacuum Pump Positive Battery Cable And Screws

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Installation note:

Check sealing ring (1) for damage and replace if necessary.

Lightly oil sealing ring (1)

Align vacuum pump electric motor (3) to groove (2) on exhaust camshaft.

The vacuum pump can be installed more easily by simultaneously rotating and pressing.

Fig 3: Aligning Vacuum Pump Electric Motor To Groove On Exhaust Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check function of DME.