11 36 046 Removing and installing or replacing intake and exhaust camshaft adjusters (B48B)

Special tools required: 

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

Necessary preliminary work: 

• Remove CATALYTIC CONVERTER
• Check TIMING 

Attention! 

When replacing the intake and exhaust camshaft adjuster: 

When removing, pay attention to  or note the identification/part number of the intake and exhaust camshaft adjuster.

An intake and exhaust camshaft adjuster must always be replaced with the same part number  .

A combination of different intake and exhaust camshaft adjusters is not  permitted!

PuMA measure 64122020  must be observed.

For further information, see the appropriate BMW parts catalogue.

Courtesy of BMW OF NORTH AMERICA, INC.

Overview chart of the intake camshaft adjuster:

7 608 788 Intake camshaft adjuster

8 617 692 Intake camshaft adjuster

8 684 920 Intake camshaft adjuster

Courtesy of BMW OF NORTH AMERICA, INC.

Overview chart of the exhaust camshaft adjuster:

7 608 789 Exhaust camshaft adjuster

8 617 693 Exhaust camshaft adjuster

8 684 921 Exhaust camshaft adjuster

Removal: 

Attention! 

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

For correct fitting see repair instructions: CHECK TIMINGS .

Courtesy of BMW OF NORTH AMERICA, INC.

Remove chain tensioner (1).

Courtesy of BMW OF NORTH AMERICA, INC.

Version 1 

To remove the central valve (1), use the changeover ratchet (2) from special tool 0 496 855 with special tool 2 450 487.

Courtesy of BMW OF NORTH AMERICA, INC.

Version 2 

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

Courtesy of BMW OF NORTH AMERICA, INC.

Release VANOS central valve of the exhaust camshaft adjuster (1) with special tool 0 496 855.

Courtesy of BMW OF NORTH AMERICA, INC.

Release VANOS central valve of the intake adjuster (1) with special tool 0 496 855.

Courtesy of BMW OF NORTH AMERICA, INC.

Remove VANOS central valve (1) of intake side.

Courtesy of BMW OF NORTH AMERICA, INC.

Remove intake adjuster (1) from intake camshaft.

Slightly tilt intake adjuster (1) and remove downwards.

Courtesy of BMW OF NORTH AMERICA, INC.

Remove VANOS central valve (1) of exhaust side.

Courtesy of BMW OF NORTH AMERICA, INC.

Remove exhaust camshaft adjuster (1) from exhaust camshaft.

Slightly tilt exhaust camshaft adjuster (1) and remove downwards.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Attention! 

Risk of mixing up the intake and exhaust camshaft adjusters.

Danger of engine damage! 

Intake and exhaust camshaft adjusters are different.

For the exhaust camshaft the exhaust camshaft adjuster is marked with EX  .

The intake adjuster for the intake camshaft is marked with IN  .

Courtesy of BMW OF NORTH AMERICA, INC.

Feed intake adjuster (1) into timing chain (2) and position on intake camshaft (3).

Courtesy of BMW OF NORTH AMERICA, INC.

Abut VANOS central valve (1) of intake side.

Courtesy of BMW OF NORTH AMERICA, INC.

Feed exhaust camshaft adjuster (1) into timing chain (2) and position on exhaust camshaft (3).

Courtesy of BMW OF NORTH AMERICA, INC.

Abut VANOS central valve (1) of exhaust side.

Courtesy of BMW OF NORTH AMERICA, INC.

Install new chain tensioner.

Parts:  Chain tensioner

Tighten chain tensioner (1).

Tightening torque 11 31 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten VANOS central valve of the intake adjuster (1) with special tool 0 496 855.

Tightening torque 11 36 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten VANOS central valve of the exhaust camshaft adjuster (1) with special tool 0 496 855.

Tightening torque 11 36 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

Remove all special tools.

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

Attention! 

Do not  crank engine backwards.

Courtesy of BMW OF NORTH AMERICA, INC.

Required reworking: 

• Check TIMING 
• Install CATALYTIC CONVERTER

When replacing the intake and exhaust camshaft adjusters, the I-level must be encoded and programmed if necessary. 

• Connect diagnosis system and follow diagnosis instructions 
• Service functions
• Power train
• Engine electronics
• Reset VANOS adaptation values
• Encode and program I-level if necessary