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11 36 047 Removing and installing/renewing inlet and exhaust adjustment units on left side (N63)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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 camshaft adjuster must be renewed due to safety reasons.
The central bolts is greased from engine number 20024296  .

(cylinder bank 5 to 8) 

Necessary preliminary work 

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

Fig 1: Releasing Central Bolts Use Special Tool 11 9 890 At Hexagon Head Of Camshaft
G08475504Courtesy 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 intake and exhaust camshaft adjusters.

Installation note: 

Replace central bolts after releasing.

Fig 2: Identifying Central Bolts Of Intake And Exhaust Camshaft Adjusters
G08475505Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Check whether head of central bolt (1) is greased (see arrow).
If no grease can be seen on the bolt head of central bolt (1), the intake and exhaust camshaft adjuster must be renewed due to safety reasons.

Installation note: 

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

Fig 3: Locating Copper Paste Contact Surface
G08475357Courtesy of BMW OF NORTH AMERICA, INC.

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
G08475373Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Remove upper tensioning rail (2).

NOTE: Shown without special tools for purposes of clarity.
Fig 5: Identifying Upper Tensioning Rail And Screws
G08475375Courtesy of BMW OF NORTH AMERICA, INC.

Remove central bolt (2) of inlet adjustment unit.

Installation note: 

Replace central bolts after releasing.

Fig 6: Identifying Central Bolts Of Intake And Exhaust Camshaft Adjusters
G08475505Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 7: Removing Inlet Adjustment Unit From Inlet Camshaft
G08475510Courtesy of BMW OF NORTH AMERICA, INC.

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

Lift out inlet adjustment unit (2).

Fig 8: Identifying Timing Chain And Inlet Adjustment Unit
G08475511Courtesy of BMW OF NORTH AMERICA, INC.

Remove central bolt (1) of exhaust adjustment unit.

Installation note: 

Replace central bolts after releasing.

Fig 9: Identifying Central Bolts Of Intake And Exhaust Camshaft Adjusters
G08475505Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 10: Removing Exhaust Adjustment Unit From Exhaust Camshaft
G08475513Courtesy of BMW OF NORTH AMERICA, INC.

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

Lift out exhaust adjustment unit (2).

Fig 11: Identifying Timing Chain And Exhaust Adjustment Unit
G08475514Courtesy of BMW OF NORTH AMERICA, INC.
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.

  1. Intake camshaft adjuster (1) is marked IN 
  2. Exhaust camshaft adjuster (2) is marked OUT 
    Fig 12: Identifying Intake Camshaft Adjuster And Exhaust Camshaft Adjuster
    G08475515Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

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

Fig 13: Locating Copper Paste Contact Surface
G08475357Courtesy of BMW OF NORTH AMERICA, INC.
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 Central Bolts Of Intake And Exhaust Camshaft Adjusters
G08475505Courtesy of BMW OF NORTH AMERICA, INC.

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

Tightening torque: 11 31 4AZ .

Fig 15: Identifying Sliding Rail And Screws
G08475518Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 16: Identifying Set Of Special Tools (11 9 890)
G08475355Courtesy of BMW OF NORTH AMERICA, INC.

Place special tool 11 9 893 on exhaust camshaft.

Fig 17: Checking Timing Adjustment Using Special Tool (11 9 893)
G08475362Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 11 9 893 on intake camshaft.

Fig 18: Fitting Special Tool (11 9 893) On Intake Camshaft
G08475363Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

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

Screw special tool 11 9 894 into cylinder head.

Fig 19: Positioning Special Tool 11 9 893 On Intake Camshaft And Exhaust Camshaft
G08475358Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 20: Positioning Special Tool (11 9 892) On Special Tool (11 9 893)
G08475359Courtesy 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: Mounting Special Tool 11 9 900 At Position Of Chain Tensioner
G08475373Courtesy 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)
G08475361Courtesy 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 Central Bolts Of Intake And Exhaust Camshaft Adjusters
G08475356Courtesy 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 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 in 150° firing TDC position cylinder 1  .

Fig 24: Securing Vibration Damper Using Special Tool (11 9 190)
G08475361Courtesy of BMW OF NORTH AMERICA, INC.

Check timing  . See 11 31 070 CHECKING CAMSHAFT TIMING ON LEFT SIDE (N63)  or 11 31 071 CHECKING CAMSHAFT TIMING ON RIGHT SIDE (N63)  again.

Remove all special tools.

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