Tightening the VANOS central valve of the exhaust camshaft adjuster

• To tighten VANOS central valve (1), use reversible ratchet (2) from special tool 0 496 855 with special tool 2 450 487.

  Courtesy of BMW OF NORTH AMERICA, INC.

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

  Courtesy of BMW OF NORTH AMERICA, INC.

  TIGHTENING TORQUES SPECIFICATION
  
  

  VANOS central valve to camshaft
  M21 VANOS central valve on the thread and on the contact surface must be coated with engine oil.	1. Joining torque 2. tightening torque	50 Nm 140 Nm
  M22 VANOS central valve on the thread and on the contact surface must be coated with engine oil.	1. Joining torque 2. tightening torque	50 Nm 140 Nm

Follow-up work 

• Refer to DISASSEMBLING ALL SPECIAL TOOLS
• Refer to INSTALL CHAIN TENSIONER .
• Refer to CHECKING THE TIMINGS OF THE CAMSHAFT
• Refer to INSTALLING THE HEAT SHIELD ON THE CYLINDER HEAD
• Refer to INSTALL THE HOLDER OF THE POSITIVE BATTERY CABLE