Installing the VANOS central valve of the exhaust camshaft adjuster

Version A with the thread M22:
Wet the VANOS central valve (A) at the thread (1) with fresh engine oil.
Wet the VANOS central valve (A) on the contact surface (2) with fresh engine oil.
Version B with the thread M21:
Wet the VANOS central valve (B) at the thread (1) with fresh engine oil.
Wet the VANOS central valve (B) on the contact surface (2) with fresh engine oil.

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Feed in and install the VANOS central valve (1) of the exhaust camshaft adjuster.

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Hand-tighten the VANOS central valve (1) of the exhaust camshaft adjuster.

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Release the VANOS central valve (1) of the exhaust camshaft adjuster in the direction of the arrow by 60°.

Courtesy of BMW OF NORTH AMERICA, INC.