11 31 573 Adjusting camshaft timing on left side (N63 hybrid)

WARNING: This page is about a different car, the 2011 BMW X6 and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

WARNING: High-voltage system - danger to life!

IMPORTANT: Release central bolts on adjustment unit only with special tool 11 9 890 .
Risk of damage to timing drive.
If special tool 11 9 890 can not be fitted, it is necessary when releasing the central bolt to grip the hexagon head of the respective camshaft.

(cylinder bank 5 to 8)

Necessary preliminary tasks:

Get special tool 11 9 890 ready for securing camshafts.

NOTE: Special tool 11 9 891 Knurled screw.
Special tool 11 9 892 Press-down bar.
Special tool 11 9 893 Gap gauge for inlet and exhaust camshafts.
Special tool 11 9 894 spacer.

Fig 1: Securing Camshaft Using Special Tools

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IMPORTANT: If special tool 11 9 890 can not be fitted, it is necessary when releasing the central bolt to grip the hexagon head of the respective camshaft.

Release central bolts (1 and 2) of inlet and exhaust adjustment units.

Installation:

Replace central bolts after releasing.

Fig 2: Identifying Inlet And Exhaust Adjustment Unit Central Bolts

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IMPORTANT: Check whether head of central bolt (1) is greased (see arrow in illustration).
If no grease can be seen on the bolt head of central bolt (1), the ADJUSTMENT UNIT must be replaced for safety reasons.

Installation:

Coat contact face of new central bolt (1) with copper paste.

Fig 3: Locating Central Bolt Head Greased Area

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Position special tool 11 9 893 on inlet and exhaust camshafts.

The special tool 11 9 893 must rest without a gap on cylinder head; if necessary, adjust camshaft at hexagon heads.

Screw special tool 11 9 894 into cylinder head.

Fig 4: Positioning Of Special Tool (11 9 893) On Inlet And Exhaust Camshafts

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Position special tool 11 9 892 on special tool 11 9 893 .

Both special tools 11 9 891 are secured with special tool 11 9 893 .

NOTE: Tighten down special tool 11 9 891 by hand.

Fig 5: Positioning Of Special Tool (11 9 892) On Special Tool (11 9 893)

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Secure central bolt (1) of intake camshaft adjuster with special tool 00 9 120 .

new Secure central bolt (2) of intake camshaft adjuster with special tool 00 9 120 .

Tightening torque: 11 36 1AZ.

Fig 6: Identifying Inlet And Exhaust Adjustment Unit Central Bolts

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Remove special tools 11 9 190 and 11 8 570 .

Crank engine at central bolt twice in direction of engine rotation until engine returns to 150° before cylinder no. 1 firing TDC position.

Secure vibration damper with special tool 11 9 190 at 150° before cylinder no. 1 firing TDC position 1.

Fig 7: Securing Vibration Damper Using Special Tool (11 9 190)

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Fit special tool 11 9 893 on exhaust camshaft and check timing adjustment.

NOTE: Timing is correctly adjusted when special tool 11 9 893 rests without a gap on cylinder head.

Fig 8: Fitting Special Tool (11 9 893) On Exhaust Camshaft

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Fit special tool 11 9 893 on intake camshaft and check timing adjustment.

NOTE: Timing is correctly adjusted when special tool 11 9 893 rests without a gap on cylinder head.

Fig 9: Fitting Special Tool (11 9 893) On Intake Camshaft

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Remove all special tools.

Assemble engine.