11 36 048 Removing and installing/replacing inlet and exhaust adjustment units on right side (N63)

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required

IMPORTANT: When the engine is shut down, the inlet and exhaust camshaft adjuster is normally locked in its initial position.

The situation may arise in some individual cases where this initial position is not reached and the camshaft can continue to be rotated in the adjustment range of the camshaft adjuster.

Where central bolts are not greased at the bolt contact points up to engine number 20024295, the adjustment gear must be replaced for safety reasons.

The central bolts is greased from engine number 20024296 .

(cylinder bank 1 to 4)

Necessary preliminary tasks:

Read fault memory and make a documentary record
Remove RIGHT CYLINDER HEAD COVER
Remove RIGHT GEAR CASE COVER
Check TIMING .

To release central bolts, use special tool 11 9 890 or grip at hexagon head of camshaft.

Fig 1: Securing 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 camshafts.

Release central bolts (1 and 2) of intake and exhaust camshaft adjusters.

Installation note:

Replace central bolts after releasing.

Fig 2: Identifying Intake And Exhaust Camshaft Adjusters 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 inlet and exhaust adjustment unit must be replaced for safety reasons.

Installation note:

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

Fig 3: Locating Contact Surface Of Central Bolt

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Release hexagon socket screw.

Release special tool 11 9 900 at knurled screws and remove.

Fig 4: Mounting Special Tool (11 9 900) At Position Of Chain Tensioner

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Release screws (1).

Remove upper tensioning rail (2).

Fig 5: Identifying Sliding Rail And Screws

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Remove central bolt (1) of exhaust adjustment unit.

Installation note:

Replace central bolts after releasing.

Fig 6: Identifying Exhaust Adjustment Unit Central Bolt

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Detach exhaust adjustment unit (1) in direction of arrow from exhaust camshaft.

Fig 7: Detaching Exhaust Adjustment Unit

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Feed out exhaust adjustment unit (2) from timing chain (1).

Lift out exhaust adjustment unit (2).

Fig 8: Identifying Exhaust Adjustment Unit And Timing Chain

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Remove central bolt (1) of inlet adjustment unit.

Installation note:

Replace central bolts after releasing.

Fig 9: Identifying Inlet Adjustment Unit Central Bolt

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Detach inlet adjustment unit (1) in direction of arrow from inlet camshaft.

Fig 10: Detaching Inlet Adjustment Unit

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Feed out inlet adjustment unit (2) from timing chain (1).

Lift out inlet adjustment unit (2).

Fig 11: Identifying Exhaust Adjustment Unit And Timing Chain

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IMPORTANT: Danger of mix-up:

Intake and exhaust camshaft adjusters are different.

Mixing up the inlet and exhaust adjustment units will cause damage to the engine.

Intake camshaft adjuster (1) is marked IN
Exhaust camshaft adjuster (2) is marked OUT

Fig 12: Identifying Intake And Exhaust Camshaft Adjuster Markings (EIN And AUS)

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Installation note:

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

Fig 13: Locating Contact Surface Of Central Bolt

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NOTE: Position of adjustment units in relation to timing chain can be freely selected.

Feed adjuster into timing chain and position on camshafts.

Insert central bolts (1 and 2) on adjustment units without gaps.

Release central bolts (1 and 2) by 90° .

Fig 14: Identifying Intake And Exhaust Camshaft Adjusters Central Bolts

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Fit sliding rail (2) and secure with screws (1).

Tightening torque: 11 31 4AZ .

Fig 15: Identifying Sliding Rail And Screws

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Get set of special tools 11 9 890 ready for securing camshafts.

Fig 16: Identifying Special Tools

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Place special tool 11 9 893 on exhaust camshaft.

Fig 17: Checking Exhaust Camshaft Timing Adjustment Using Special Tool (11 9 893)

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Fit special tool 11 9 893 on intake camshaft.

Installation note:

Align exhaust and intake camshafts so that special tools 11 9 893 lie on the cylinder head without any gap.

Fig 18: Checking Intake Camshaft Timing Adjustment Using Special Tool (11 9 893)

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Screw special tool 11 9 894 into cylinder head.

Fig 19: Screwing Special Tool (11 9 894) Into Cylinder Head

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Press special tool 11 9 892 down with special tool 11 9 891 .

Fig 20: Securing Special Tools

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Screw in special tool 11 9 900 .

Pretension timing chain with special tool 11 9 900 .

Preload hexagon socket screw with special tool 00 9 250 to 0.6 Nm.

Fig 21: Mounting Special Tool (11 9 900) At Position Of Chain Tensioner

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Check special tools 11 9 190 for correct seating.

Fig 22: Securing Vibration Damper Using Special Tool (11 9 190)

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Tighten down central screw (1 and 2) of the adjustment units with special tool 00 9 120 .

Tightening torque 11 36 1AZ .

Fig 23: Identifying Intake And Exhaust Camshaft Adjusters 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 rotation until engine is in the 150° firing TDC position cylinder 1 again.

Mount special tool 11 8 570 on vibration damper with a bolt.

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

Fig 24: Securing Vibration Damper Using Special Tool (11 9 190)

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Check TIMING again.

Remove all special tools.