BMW X5 Owners & Service Manuals

BMW X5: Removing And Installing/Replacing Eccentric Shaft (N52K)

BMW X5 (G05) 2019-2024 Service & Repair Manual / Engine / Engine Mechanical (6-Cylinder) / Variable Valve Gear / Removing And Installing/Replacing Eccentric Shaft (N52K)

Special tools required:

Necessary preliminary tasks:

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

Variable Valve Gear
Fig. 218: Eccentric Shaft

NOTE: All bearing caps (1 and 2) of eccentric shaft are marked with numbers from 1 to 6 (1 for 1st cylinder to 6 for 6th cylinder).

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

Release screws on bearing cap 6 (1).

Release screws on bearing caps 1 to 5 (2).

Set all bearing caps down in special tool 11 4 481 in a tidy and orderly fashion.

Remove eccentric shaft with gentle tilting and turning movements.

Variable Valve Gear
Fig. 219: Bearing Caps

IMPORTANT: Screw is not magnetic and must be secured against falling down.

Release screw.

Remove magnet wheel (1).

Variable Valve Gear
Fig. 220: Magnet Wheel

IMPORTANT: Magnet wheel (1) is highly magnetic and must be protected against metal filings/borings.

After removing, place magnet wheel (1) in a plastic bag (2) with a seal.

Variable Valve Gear
Fig. 221: Magnet Wheel And Plastic Bag

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

Carefully pull needle bearing (1) apart at point of separation.

Remove all needle bearings (1) from eccentric shaft.

Variable Valve Gear
Fig. 222: Removing Needle Bearings From Eccentric Shaft

Install bearing shells (1) as pictured.

NOTE: Always replace bearing shells (1) and needle bearings together.

Variable Valve Gear
Fig. 223: Bearing Shells

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

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

Variable Valve Gear
Fig. 224: Bearing Shells

NOTE: All bearing caps (1 and 2) of eccentric shaft are marked with numbers from 1 to 6 (1 for 1st cylinder to 6 for 6th cylinder).

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

Insert eccentric shaft.

Adjust eccentric shaft on dihedron to minimum stroke.

Fit all bearing caps (1 and 2).

Insert all screws.

Tightening torque: 11 12 7AZ.

Variable Valve Gear
Fig. 225: Bearing Caps

Assemble engine.

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