BMW X5 Owners & Service Manuals

BMW X5: Removing And Installing/Replacing Chain Module For Oil Pump/Vacuum Pump (N52K)

BMW X5 (G05) 2019-2024 Service & Repair Manual / Engine / Engine Mechanical (6-Cylinder) / Oil Pump With Filter And Drive / Removing And Installing/Replacing Chain Module For Oil Pump/Vacuum Pump (N52K)

Special tools required:

IMPORTANT: Aluminium-magnesium materials.

No steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminium screws/bolts exclusively.

Aluminium screws/bolts must be replaced each time they are released.

The end faces of aluminium screws/bolts are painted blue for the purposes of reliable identification.

Jointing torque and angle of rotation must be observed without fail (risk of damage).

Necessary preliminary tasks:

Procedure on installed engine:

Turn sprocket wheel (3) with central bolt at crankshaft into position until special tool 11 0 290 can be secured.

Simultaneously secure special tool 11 0 290 to sprocket wheel (3) and special tool 11 4 362.

Release screw (2) for sprocket wheel (3).

Tightening torque: 11 66 2AZ.

Oil Pump With Filter And Drive
Fig. 250: Special Tool (11 4 362) And (11 0 290), Screw And Sprocket Wheel

Press timing chain with chain tensioner (1) in direction of arrow.

Disconnect timing chain with special tool 11 4 120.

Feed out sprocket wheel (3) at hexagon head (4) of vacuum pump.

Installation:

If the chain module is replaced, a mounting bar (2) is already pre-installed.

Oil Pump With Filter And Drive
Fig. 251: Pressing Piston With Special Tools (11 6 261)

NOTE: To release bolt (1), insert a 6 mm drill bit between sprocket wheel and oil pump housing.

Release screw (1) for sprocket wheel.

Tightening torque: 11 41 6AZ.

Release screws (2) for chain module.

Tightening torque: 11 41 5AZ.

Installation:

Replace aluminium screws.

Oil Pump With Filter And Drive
Fig. 252: Bolt And Screw

Secure crankshaft and camshaft with special tools 11 0 300 and 11 4 280.

IMPORTANT: Do not remove special tools 11 0 300 and 11 4 280 to release central bolt (1).

Employ a second person for gripping when releasing central bolt (1).

Screw special tool 11 9 280 onto hub of vibration damper.

Release central bolt (1).

Tightening torque: 11 21 1AZ.

Oil Pump With Filter And Drive
Fig. 253: Central Bolt With Special Tool (11 9 280)

Installation:

Replace central bolt (1).

Remove hub (2) towards front.

Installation:

Replace crankshaft radial seal at front.

Oil Pump With Filter And Drive
Fig. 254: Hub

Open screw plug on bedplate.

Tightening torque: 11 11 8AZ.

Installation:

Replace aluminium screws.

Release screw for chain module (1).

Tightening torque: 11 41 4AZ.

Installation:

Replace aluminium screws.

Remove chain module (1) in direction of arrow.

Oil Pump With Filter And Drive
Fig. 255: Removing Chain Module

IMPORTANT: Note installation direction of sprocket wheel (2).

Collar (see arrow) on sprocket wheel (2) points to engine.

Incorrect assembly will result in engine damage.

Oil Pump With Filter And Drive
Fig. 256: Collar On Sprocket Wheel

Procedure on removed engine:

NOTE: Engine is mounted on special tool 11 4 440.

Release screw (1) for sprocket wheel.

Tightening torque: 11 66 2AZ.

Release screw (2) for sprocket wheel.

Tightening torque: 11 41 6AZ.

Release central bolt (3).

Tightening torque: 11 21 1AZ.

Oil Pump With Filter And Drive
Fig. 257: Releasing Central Bolt

Installation:

Mark central bolt (3) with a colored dot.

Replace central bolt (3).

Remove hub (4) towards front.

All:

Install hub with new central bolt.

Tighten down special tool 11 5 200 with screws (1) to hub.

Do not remove special tools 11 0 300 and 11 4 280.

Oil Pump With Filter And Drive
Fig. 258: Screws With Special Tool (11 5 200)

Remove tensioner for drive belt.

Screw in special tool 11 4 362 from special tool kit 11 4 360.

Mount special tool 11 9 280 on 11 5 200.

Support special tool 11 9 280 on special tool 11 4 362.

Special tool 11 0 300 secures crankshaft.

Tighten central bolt to jointing torque.

Tightening torque: 11 21 1AZ.

Mark central bolt and hub with paint.

Oil Pump With Filter And Drive
Fig. 259: Special Tools (11 9 280), (11 0 300), (11 4 360) And (11 5 200)

Mark special tools with colored line (1).

See picture.

IMPORTANT: Do not remove the special tool while tightening the central bolt to torsion angle.

Risk of damage!

If necessary, tighten central bolt to torsion angle with special tool 00 9 140.

Tightening torque: 11 21 1AZ.

Oil Pump With Filter And Drive
Fig. 260: Marking Special Tools With Colored Line

Installation:

Replace crankshaft radial seal at front.

Assemble engine.

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