2009 BMW 750i (F01) V8-4.4L Turbo (N63)

Vehicle Information

Vehicle > Engine, Cooling and Exhaust > Engine > Camshaft, Lifters and Push Rods > Camshaft > Service and Repair > Removal and Replacement

Special Tools Required

(cylinder bank 5 to 8)

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Important!

The intake camshaft must first be rotated in such a way that the camshaft is free from tension when the bearing caps are released (risk of damage).

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Necessary preliminary work:

• Remove left cylinder head cover.
• Check timing.
• Remove left inlet adjustment unit.

Camshaft Removal Steps

Image Description: A diagram showing the camshaft with two numbered points, labeled '1' and '2'.

Important! No cam on the inlet camshaft is permitted to press directly onto a roller cam follower. With cylinder no. 1 at 150° before firing TDC there is no piston in the TDC position.

Rotate left inlet camshaft at dihedron with a fork wrench (1) into a suitable position.

Image Description: A diagram of the engine cylinder head with numbered components (1-10) indicating the order for releasing camshaft bearing bolts.

Release bolts of camshaft bearings in sequence (10 to 1) in 1/2 turns.

Set down all bearing caps in a tidy and orderly fashion on special tool 11 4 480.

Intake camshaft

Important! Used rocker arms (1) may only be reused in the same position.

Rocker Arm Handling

Image Description: A close-up view of rocker arms (labeled '1') in position on the camshaft.

Note: Rocker arms (1) are freely accessible after inlet camshaft has been removed.

Do "not" remove rocker arm (1) on intake side.

Image Description: A close-up view of a component with a compression ring (labeled '1') being manipulated.

Important! Plain compression rings (1) can easily break.

If necessary, replace plain compression rings (1).

Press compression ring (1) on one side into groove, pull up on other side and remove catch.

Carefully pull compression ring (1) apart and remove towards front.

Compression Ring Installation

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Note: The intake camshaft of cylinder bank 5 to 8 is marked with "E 5-8".

Image Description: A view of camshafts labeled with cylinder bank designations (E 1-4, A 1-4, E 5-8, A 5-8).

Image Description: A close-up view of rocker arms (labeled '1') in position.

Important! Rocker arms (1) slip slightly when inlet camshaft is fitted.

Make sure rocker arms (1) are secured as illustrated on hydraulic valve clearance compensating elements and on valves.

Align all rocker arms (1) straight.

Camshaft Installation

Image Description: A diagram showing the cylinder head with arrows indicating the lubrication points for bearing positions.

Coat all bearing positions with engine oil.

Insert intake camshaft.

Insert inlet camshaft (1) so that cams point to side at cylinder 5 as shown in picture.

Image Description: A diagram showing the camshaft installed with numbered components and arrows indicating the correct orientation.

Image Description: A close-up view of a component with labels and part numbers.

Bearing Cap Installation and Tightening

Image Description: A diagram showing the camshaft with numbered bearing caps.

Important! Do not mix up the bearing caps of cylinders 1 to 4 and 5 to 8. All bearing caps are coded and can only be installed in one position.

All bearing caps are marked:

• L= Cylinders 1 - 4.
• R= Cylinders 5 - 8.
• E= Intake side
• A= Exhaust side
• 1= designation from 1 to 5

Image Description: A diagram of the engine cylinder head with numbered components (1-10) indicating the order for tightening camshaft bearing bolts.

Insert all bolts.

Tighten down bolts in sequence (1 to 10) in 1/2 turns.

Final Steps and Specifications

Tightening torque: 11 31 6 AZ.

Tightening torque: 11 31 7 AZ.

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Install inlet adjustment units.

Adjust valve timing.

Assemble engine.

11 31 Camshaft Tightening Specifications