Actually you need to do more than the CCV.This looks like a great discription on the DIY for the CCV...will tackle the job on my '97 528i..thanx for the great info.
FWIW, I've never done any of this, but, I tried to collect the relevant threads together to help others (and perhaps even me, in the future) do their CCV properly.here is what I did.
Recently added this combined reference:FWIW...Here's what I've come up with (so far)
Saw this post when the thread was resurrected.That will not be easy to acces the end of the Vent Pipe that connects to the CCV. Accessing that end when the CCV is still attached to the engine is difficult (at least on the M54 it was). You will have to remove all the various parts (airbox, throttle body, electrical box, etc.) to get access. If you do that, you may as well replace the CCV itself.
You should read my thread on BimmerForums...Did this yesterday, hoses were pretty much fully blocked at CCV. Can't wait to feel difference and not have to keep refilling oil. Can't believe nobody mentions how hard it is to connect the short hose coming off te top of the CCV with the 2 90 degree bends. That was a bitch