Ducklakeview said:I did mine a few weeks ago; http://www.z4-forum.com/forum/viewtopic.php?f=2&t=97381&hilit=vanos
RAISE the engine by undoing the two engine mount bolts from UNDERNEATH as they are easier to get to, also disconnect the lower rad hose from the engine end. After jacking the engine up, mine came off easily.
Mike