here ya go

Lengthily video walk through of CCV on M54 in an e39 which I hear is same for the X Replacing the BMW M54 Crankcase Ventilation System, Part 1 of 3 - YouTube

What I found when buying the parts for CCV replace is that there are two kits: normal and cold weather. The cold weather has insulation on he outside.

Also this was posted in these forums few days back:
http://www.xoutpost.com/bmw-sav-foru...-out-here.html


X5SND: from diff vent tube! Duh and thanks for the quick answer!

If you find adjusting the stratified air temp dials...then just leave the dial in the center half way between the red & blue zones (aka the neutral zone). :)

BMW has had a stratified air dial on the front center vent for decades. The rear vent used to just be fresh air or "conditioned" air...but then in the mid 90s, BMW started giving rear passengers the same option to warm or cool the air coming from the air vent at the rear of the center console.

An example for the front stratified air dial is to give the driver the choice to send cooler air toward their face so they can stay alert on long journeys...while the passengers in the cabin can stay warm and toasty.

The same choice is given to the rear passengers now...if the sun is on their side of the car or at the rear of the car...their area of the car may be warmer or cooler than other areas of the car...the rear stratified air dial gives the rear passengers the choice to direct fresh, cooled, or warmed air toward them without having to ask the driver or the front passengers to adjust the temperature of the entire cabin to accommodate them...only due to the sun being or not being on their side of the car.

Again, if you don't want to adjust this temperature...move the dial to the center...the temperature of the air will be the same from every vent.

My 1990 honda civic had this but it was only the left most vent that allowed cold air

I have a small leak so about every week or 2 I check the level but when I loosen the bleeder screw the level rises to full and doesn't allow me to add any

Thanks for the pics and link.. watched the vid... I may just attempt it myself. It's like working on an Apple comp... so many screws/bolts etc lol.

Those plastic bleeder screws are known to break easily fiy. Upgrade to a brass one

Will hollowing out the cats do anything for the power? since it is a non turbo. will it make it run like shit.

Also another question, on the X5/6 ///M forum they hollow out cats, but they are turbod. But wont this have any downsides? like wont the o2 sensors and stuff throw off stuff?

Power wise it won't do anything just make your exhaust louder and you would smell the exhaust a lot more and you will most likely get a check engine light

What is that oily/greasy looking part? Why is it greasy and should it look that way? It looks like a part that should not be so greasy.

This park is located in the back of the engine...close to the firewall. Open the hood and look to the back.

http://i541.photobucket.com/albums/g...nknownpart.jpg