I know this thread is kind of old, but I just wanted to update you on the ticking in my 2008 3.0 x5. It has been to the dealer 3 times already for this problem. They state the ticking is from the vacuum assembly on the head/valve covers. They tried to "bleed off and recharge" the assembly 3 times with the ticking returning after a few days. They finally admit that there is a known issue with this and there is a fix for certain 2007/2008 3.0's that fall into a run of VIN's (mine being one of them). They have to replace the head with an updated version. It will take 3 days at the dealer. So, if you have a ticking coming from the passengerside engine of your 60G vehicle, don't let them tell you thats normal. Cause its not.