11 36 126 Removing and installing/replacing exhaust side VANOS central valve (B48, B46)

Special tools required: 

• 2 358 122
• 0 496 855
• 2 450 487
• 11 6 480

Necessary preliminary work: 

• Remove CYLINDER HEAD COVER .
• Check TIMING .
• Remove the CATALYTIC CONVERTER .

Removal: 

Attention  !

Release VANOS central valve (1) only with installed special tool 2 358 122 .

For correct fitting see repair instructions: CHECK TIMINGS .

Fig 1: Releasing VANOS Central Valve With Special Tool (2 358 122)

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Version 1 

Use the reversible ratchet head (2) from special tool 0 496 855 with special tool 2 450 487 to release the central valve (1).

Fig 2: Releasing Central Valve Using Reversible Ratchet Head

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Version 2 

Use special tool 0 496 855 to release the central valve (1).

Fig 3: Releasing Central Valve Using Special Tool (0 496 855)

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Release VANOS central valve (1) of exhaust camshaft adjuster.

Fig 4: VANOS Central Valve Of Exhaust Camshaft Adjuster

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Release VANOS central valve (1) of intake camshaft adjuster.

Fig 5: VANOS Central Valve Of Intake Camshaft Adjuster

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Remove VANOS central valve (1) of exhaust side.

Fig 6: Removing VANOS Central Valve Of Exhaust Side

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Installation: 

Mount and abut the exhaust side VANOS central valve (1).

Fig 7: VANOS Central Valve Of Exhaust Camshaft Adjuster

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Install new chain tensioner.

Tighten chain tensioner (1).

Tightening torque 11 31 1AZ .

Fig 8: Chain Tensioner

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Tighten VANOS central valve of intake camshaft adjuster (1).

Tightening torque 11 36 1AZ .

Fig 9: Tightening VANOS Central Valve Of Intake Camshaft Adjuster

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Tighten VANOS central valve of exhaust camshaft adjuster (1).

Tightening torque 11 36 1AZ .

Fig 10: Tightening VANOS Central Valve Of Exhaust Camshaft Adjuster

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Remove all special tools.

Crank engine with special tool 11 6 480 twice in direction of engine rotation.

Attention  !

Do not crank engine back. 

Fig 11: Cranking Engine With Special Tool (11 6 480) To TDC Firing Position Of Cylinder 1

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Required follow-up work: 

• Check TIMING .