11 36 048 Removing and installing/replacing intake and exhaust camshaft adjuster on right 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: When the engine is shut down, the inlet and exhaust adjustment unit 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 adjustment unit.
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 TIMING CASE COVER
Check TIMING .

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

Fig 1: Tightening Special Tool (11 9 891) Using Hand

Courtesy of BMW OF NORTH AMERICA, INC.

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 inlet and exhaust adjustment units.

Installation:

Replace central bolts after releasing.

Fig 2: Identifying Inlet And Exhaust Adjustment Unit Central Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

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:

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

Fig 3: Locating Central Bolt Head Greased Area

Courtesy of BMW OF NORTH AMERICA, INC.

Release hexagon socket screw.

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

Fig 4: Positioning Of Special Tool (11 9 900) On Chain Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove upper tensioning rail (2).

Fig 5: Identifying Upper Tensioning Rail And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Remove central bolt (1) of exhaust adjustment unit.

Installation:

Replace central bolts after releasing.

Fig 6: Identifying Exhaust Adjustment Unit Central Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 7: Removing Exhaust Adjustment Unit From Exhaust Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Remove central bolt (1) of inlet adjustment unit.

Installation:

Replace central bolts after releasing.

Fig 9: Identifying Inlet Adjustment Unit Central Bol

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 10: Removing Inlet Adjustment Unit From Inlet Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

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

Lift out inlet adjustment unit (2).

Fig 11: Identifying Inlet Adjustment Unit And Timing Chain

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Danger of mix-up:
Intake and exhaust adjustment units are different.
Mixing up the inlet and exhaust adjustment units will cause damage to the engine.

Inlet adjustment unit (1) is marked with ON
Exhaust adjustment unit (2) is marked with OFF

Fig 12: Identifying Inlet And Exhaust Adjustment Units
Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 13: Locating Central Bolt Head Greased Area

Courtesy of BMW OF NORTH AMERICA, INC.

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

Feed adjustment unit 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 Adjustment Unit Central Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque: 11 31 4AZ .

Fig 15: Identifying Upper Tensioning Rail And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Get special tool 11 9 890 ready for securing camshafts.

Fig 16: Securing Camshaft Using Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

Place special tool 11 9 893 on exhaust camshaft.

Fig 17: Fitting Special Tool (11 9 893) On Exhaust Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 11 9 893 on intake camshaft.

Installation:

Align exhaust and inlet camshafts in such a way that special tools 11 9 893 rest without a gap on the cylinder head.

Fig 18: Fitting Special Tool (11 9 893) On Intake Camshaft

Courtesy of BMW OF NORTH AMERICA, INC.

Screw special tool 11 9 894 into cylinder head.

Fig 19: Positioning Of Special Tool (11 9 893) On Inlet And Exhaust Camshafts

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 20: Tightening Special Tool (11 9 891) Using Hand

Courtesy of BMW OF NORTH AMERICA, INC.

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: Positioning Of Special Tool (11 9 900) On Chain Tensioner

Courtesy of BMW OF NORTH AMERICA, INC.

Check special tools 11 9 190 for correct seating.

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

Courtesy of BMW OF NORTH AMERICA, INC.

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 Inlet And Exhaust Adjustment Unit Central Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Remove special tools 11 9 190 and 11 8 570 .

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

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)

Courtesy of BMW OF NORTH AMERICA, INC.

Check TIMING again.

Remove all special tools.