Howzit guys. I've got a '07 Z4 M Coupe. A year before the m.plan expired, I picked up a ticking noise from the engine. Initial diagnosis pointed out that the shimming needed to be re-adjusted. A year later, and four months post m.plan expiry, BMW SA changed the vanos system as part of a goodwill gesture as I initially brought up the issue before m.plan expiry. However, the ticking noise is still there, and BMW SA want nothing to do with it. Can anyone please lend any advise on this matter, it'll be greatly appreciated?