Removing and installing/replacing oil/vacuum pump (B46/B48 4-Cyl. Engine) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)

Attention! 

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

Necessary preliminary tasks: 

• Remove OIL SUMP .

REMOVAL: 

Release screws (1) of oil/vacuum pump (2).

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Remove oil/vacuum pump (1) and thread out of drive chain (2).

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Replacement: 

Release screws (1). Remount intake pipe (2).

Tighten down screws (1).

Tightening torque: 11 41 1AZ .

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Replacement: 

Attention! 

Pay attention to mounting flats on oil pump (see arrow in illustration).

Labelling "Front" on the camshaft sprocket (1) needs to be visible.

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Replacement: 

Attention! 

Screw (1) has left-hand thread.

"Front" needs to be legible on the camshaft sprocket.

Hold down camshaft sprocket (2) with a suitable tool. Release screw (1). Remount camshaft sprocket.

Parts:  Replace screw (1).

Mount camshaft sprocket (2) and hold down with a suitable tool. Tighten screw (1).

Tightening torque: 11 41 5AZ .

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INSTALLATION: 

Check centering bushes (1) for damage, replace if necessary.

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Thread oil/vacuum pump (1) into drive chain (2).

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Tight screws (1) of oil/vacuum pump (2).

Tightening torque: 11 41 2AZ .

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Required follow-up work: 

• Install OIL SUMP .
• Check engine for leak tightness