2002 540i smokes on start up

[raybmw]

thanks for getting back to me,those pictures really helped.looking at the picture the 2 top hoses on the top of the ccv in back of the intake,mine only has a hose on the passenger side,the hose on the drivers side is missing,any idea where that should connect.thanks again

[brettski]

You may find that one of the vacuum lines is plugged. There was a change in the later configuration. There should be a large line that goes down the left hand side of the engine as well as the smaller vaccum line.

Did you notice a dip in the idle when you pulled the dipstick?

[raybmw]

thanks again.the idle didn t change but i did hear slurping when i pulled the dipstick,i did replace that ccv unit a month ago.when i look inside the throttle body i see oil there,also when the car was parked on a steep incline with nose down ,there was a whole lot of smoke on start up,other than this smoke the car runs perfect.

[Jack Dabsy]

Valve stem seals, Definitely !!

[raybmw]

thanks again for the reply.my main ? is what does oil in the thottle body have to do with valve seals.