11 36 046 Removing and installing/replacing inlet and exhaust adjustment units

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT: To open central bolts, release at inlet and exhaust adjustment units with special tool 11 4 280 only.

Necessary preliminary tasks:

Remove CYLINDER HEAD COVER .

Remove fastener (1) in direction of arrow.

Fig 1: Removing Fastener

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Slide in special tool 11 0 300 in direction of arrow.

Rotate flywheel (1) at central bolt until firing TDC position at 1st cylinder is reached.

IMPORTANT: The TDC bore can be mixed up in automatic transmissions.

Fig 2: Sliding Special Tool (11 0 300)

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With 1st cylinder in firing TDC position, inlet camshaft (1) at 6th cylinder points downwards at an angle to the left.

With 1st cylinder in firing TDC position, exhaust camshaft (2) at 6th cylinder points downwards at an angle to the right.

Installation note:

If the timing is checked while the engine is installed, this can only be checked with a mirror.

Fig 3: Identifying Cams Of Exhaust Camshaft And Inlet Camshaft

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Fit special tool 11 4 283 with screws (1).

Fit special tool 11 4 281 on special tool 11 4 283.

Fig 4: Identifying Special Tools (11 4 281) And (11 4 283)

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Release central bolt of exhaust adjustment unit (1).

Release central bolt of inlet adjustment unit (2).

Tightening torque: 11 36 1AZ .

Release CHAIN TENSIONER .

Fig 5: Identifying Inlet Camshaft Central Bolt And Screw

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Detach exhaust adjustment unit (1) from exhaust camshaft.

Detach inlet adjustment unit (2) from inlet camshaft.

Installation note:

To facilitate removal and installation of adjustment units, turn sensor gears at cutout downwards.

Fig 6: Detaching Exhaust Adjustment Unit From Exhaust Camshaft

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IMPORTANT:

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

The inlet and exhaust adjustment units are different.

VANOS is marked with AUS and EX for the exhaust camshaft.

VANOS is marked with EIN and IN for the inlet camshaft.

Sensor gears can be fitted alternatively.

Fig 7: Identifying AUS And EX Marks For Exhaust Camshaft And EIN And IN For Inlet Camshaft

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Position inlet and exhaust adjustment units on camshafts.

Installation position of inlet and exhaust adjustment units can be freely selected.

Installation note:

Replace screws (1 and 2).

Insert screws (1 and 2).

Adjust VALVE TIMING .

Fit CHAIN TENSIONER .

Fig 8: Identifying Inlet Camshaft Central Bolt And Screw

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IMPORTANT: Incorrect installation possible.

Make sure that timing chain is guided in tensioning rail (1).

NOTE: Schematic representation on removed chain drive.

Fig 9: Identifying Tensioning Rail

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Remove all special tools.

Assemble engine.