Removing and installing/replacing exhaust side VANOS central valve (B36 engine) (Cooper base)

Special tools required: 

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

Preliminary work needed: 

• Check TIMING .
• Remove CATALYTIC CONVERTER .

Courtesy of BMW OF NORTH AMERICA, INC.

Overview illustration of the VANOS central valves:

8 617 694 short VANOS central valve

7 620 689 long VANOS central valve

8 695 709 short VANOS central valve (increased leakage) (TZV)

8 696 446 short VANOS central valve (low leakage) (TZV)

Removal: 

Courtesy of BMW OF NORTH AMERICA, INC.

Remove chain tensioner (1).

Courtesy of BMW OF NORTH AMERICA, INC.

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).

Courtesy of BMW OF NORTH AMERICA, INC.

Version 2 

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

Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

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

Courtesy of BMW OF NORTH AMERICA, INC.

Remove VANOS central valve (1) of exhaust side.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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

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 intake camshaft adjuster (1).

Tightening torque 11 36 1AZ .

Courtesy of BMW OF NORTH AMERICA, INC.

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

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.

Courtesy of BMW OF NORTH AMERICA, INC.

Required reworking: 

• Check TIMING .
• Attach CATALYTIC CONVERTER .

When replacing one of more VANOS central valves, the I level must be possibly coded and programmed. 

• Connect diagnosis system and follow the diagnosis instructions. 
• Service functions
• Drive
• Engine electronics
• Reset VANOS adaptation values
• Code and program I level if necessary