Engine smokes... need urgent help!!!

[king_julien]

Up-date:

I took the plugs out from the right-side cylinders and found everyone of then dipped in oil which I think the head gasket is OK. If it was faulty then the oil should be in one of the chamber not in others. It could possibly be Crank Case Breather Valve in the intake manifold causing the high oil pressure which has damage the oil separator therefore the oil is getting sucked into the chamber along with the air. Results cloud of smoke from exhaust.

Have ordered new Crank Case Breather Unit and also Oil Separator. Will wait till these parts arrive. For the fan, will have till I sort this smoke problem first.

In the meantime if you have any other suggestion, please let me know... Thanks again to everyone...

[X5-limo]

....after my last post, (and because I never heard of an 'oil separater', I called a BMW dealer for a price check of an 'oil separater' for a '01 X5 3.0. The guy (under 40?) didn't have a clue and couldn't find the part, so I thought, "Cool, maybe my engine doesn't have one - one less component to have to replace and shell out $$$ for!"
......NOT!
Not being too comforatble with the initial BMW tech's confusion, I called another BMW dealership and low and behold, I finally learned that an 'oil separator' is nothing but a glorified PCV valve (or Crankcase ventilation Valve) as its referred to around here!!! But unlike 'around here' where PCV valves are basically a dime a dozen, the (glorified) one for a BMW 3.0i is $144 plus $28 for an additional hose (not including tax!)!
......Being a BMW newbie that was a former (3-time) Jeep Grand Cherokee Ltd. DIY'er owner since '93, all I can say is, "...Toto, I've got a feelin' we aren't in Kansas anymore!"