Removing the intake camshaft of VANOS central valve at left

• Position special tool 2 249 117 (1) on the camshafts of cylinder bank 2.
• Secure camshafts with the special tool 2 249 117 (1).
• Manually tighten special tool 2 249 117 using two of the cylinder head cover screws (2) until it is against the cylinder head.

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  NOTE: RISK OF DAMAGE
  Damage to timing chain or timing chain drive.
  Turning the engine without chain tensioner or special tool can result in damage to the timing chain and timing chain drive.

  • Always turn the engine with the chain tensioner or the special tool.

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• Release timing chain on the special tool 2 249 162 by turning the hexagon screw (2).
• Leave the special tool 2 249 162 (1) in the cylinder head.
• Loosen screw (1).
• Loosen screw (2).
• Remove the slide rail of cylinder bank 2 (3).

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• Loosen the VANOS central valve (1).

  Make sure the exhaust camshaft adjuster and the intake camshaft adjuster are not pulled off of the camshafts.

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• Replace the exhaust of VANOS central valve at left (1).

Make sure the exhaust camshaft adjuster (2) is not pulled off the camshafts.

Courtesy of BMW OF NORTH AMERICA, INC.