1137005 Removing and installing/replacing eccentric shaft (N51)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2010 BMW 328xi, 2010 BMW 328i, and 2009 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove CYLINDER HEAD COVER .
Remove INTERMEDIATE LEVER .

If necessary, move eccentric shaft (1) on twin surface to minimum lift (2).

Fig 1: Turning Eccentric Shaft

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Release screws on bearing cap number (1).

Release screws on all bearing caps (2).

All bearing caps are identified with numbers; set caps down in special tool 11 4 481 in a tidy and orderly fashion.

Remove intermediate shaft with a light tilting and rotating motion.

Fig 2: Releasing Screws On Bearing Cap Number

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Release screw and remove magnet wheel (1).

IMPORTANT: Screw is not magnetic and is secured against falling out.

Fig 3: Locating Magnet Wheel Screws

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IMPORTANT: Magnet wheel (1) is extremely magnetic.
After removing, protect magnet wheel (1) against metal chips by placing it in a plastic bag (2) with a seal.

Fig 4: Identifying Magnet Wheel In Plastic Bag

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Carefully press needle bearing (1) apart at split position only to such an extent that it can be removed from eccentric shaft.

IMPORTANT: Needle bearing (1) can break very easily.

Fig 5: Removing Needle Bearing

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Install bearing shells (1) in such a way that ends of bearing shells (1) face each other as shown in illustration.

NOTE: Always replace bearing shells and needle bearings together.

Fig 6: Locating Bearing Shells Ends

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Install bearing shell (1) with tip facing down (see arrow) in cylinder head.

Install bearing shell (2) with tip facing up in bearing cap.

Fig 7: Locating Bearing Shell Tip

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Install eccentric shaft and set to minimum lift.

Bearing cap number 6 (1) is provided with a stop.

All bearing caps (2) are identified with numbers from 1 to 5.

Tightening torque: 11 37 7AZ .

Installation:

Spline teeth of eccentric shaft must be greased with LONGTIME PD 1 (2.4) .

Fig 8: Installing Bearing Cap On Bearing Cap Number

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Assemble engine.