Tightening the VANOS central valve of the exhaust camshaft adjuster

• Have the special tool 0 496 855  ready.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Have the special tool 2 450 487 ready.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Have the special tool 2 469 138 ready.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Have the commercially available torque wrench (1)  ready.

  Courtesy of BMW OF NORTH AMERICA, INC.

• Have all the special tools and standard tools ready.

  Number	Description
  1	Standard torque wrench
  2	Wrench socket set 2 450 487
  3	Reversible ratchet 0 496 855
  4	Commercially available reduction
  5	adapter2 469 138

  Courtesy of BMW OF NORTH AMERICA, INC.

• Assemble all the special tools and standard tools as shown.

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The figure shows the rear of the engine.

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

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. 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.