Tightening the VANOS central valve of the intake 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 the VANOS central valve (1)  of the intake adjuster,
  TIGHTENING TORQUE SPECIFICATIONS
  
  

  VANOS central valve to camshaft
  M21	VANOS central valve on the thread and on the contact surface must be coated with engine oil. 1. Tightening torque	50 Nm
  	2. Tightening torque	115 Nm
  M22	VANOS central valve on the thread and on the contact surface must be coated with engine oil. 1. Tightening torque	50 Nm
  	2. Tightening torque	140 Nm

  Courtesy of BMW OF NORTH AMERICA, INC.

Follow-up work 

• Refer to DISASSEMBLING ALL SPECIAL TOOLS .
• Refer to INSTALLING CHAIN TENSIONER .
• Refer to CHECKING THE TIMINGS OF THE CAMSHAFT .