you may want to check the disa valve also. it takes 5 min. to check and is yet another issue. if i had to do the ccv/ hoses bullshit again i would move the valve to an accessible location and run the correct diamater aftermarket rubber hoses to it. it is poor design at it's peak. just because it's a bmw doesn't mean everything on the car is great. and any one who owns an x5 knows about flawed design.