What is this pipe for?
 

Took out the plastic cover on my 4.4L engine and saw this broken pipe!!!
What is this pipe for? It´s related with the gas system? The pipe has some kind of oil around it
Don´t have any strange smell, or any light on the dash. Power is also normal and car runs fine :rolleyes:

Here´s the little hole on the pipe
http://xoutpost.com/gallery/files/3/5...UBOROTO024.jpg

http://xoutpost.com/gallery/files/3/5...UBOROTO023.jpg

crank case vent hoses to the oil seperator.

they melt from the oil mist.

about $55 in parts (2 hoses) and 15 minutes work. make you you get a hose clamp the oem is not reusable.

I believe i must have this broken pipe for more than two months. should I be worried? Do I need to change it as soon as possible?

J.Seven

mines was melted completely and fell apart when I lifted it up to see. then I got a SES light. you should replace them so dirt does not contaminate the crankcase.

Apparently this is a common problem, mine had a hole in the exact same place as yours, as a temp solution I spliced mine with another piece of rubber hose I found and when I get a chance I will try to replace it myself, I don't think it is a 15 min. job though, it's hard to reach in the back of the eng., I think you have take out the whole microfilter assy. to get better access to the vent hose.
I purchased the new crankvent hose for $20 at the dealer, the new hose is made of a stronger material. Let us know how it goes when you replace it.

the only thing you have to remove is the top plastic engine cover and supports for it. 30 minute job. an hour if you're slow.

I must be slow, I have to take off the microfilter assy./shroud to reach it.

I am replacing my sparkplugs and I saw my hoses are bad, same as the pics show here. I want to replace both hoses, anyone know what parts number for these hose and do I need a special tool to clam them when installing? I know what the hose melted hose (crank case) is, but not the bottom one. Does any one know?

Mine is bad in the exact same spot. It is a common problem as said above.

Are you looking for the lower vent hose? Check Realoem.com to help with part numbers:
http://www.realoem.com/bmw/showparts...59&hg=11&fg=15
This was from an 05 4.4.

This is a common problem, BMW knows about problematic crank case vents(those are just the hoses in the pic). Dealerships were supposed to check and replace hoses and valves accordingly although most will only change the hoses and wait till the actual valves burst leaving a nice oily mess in your engine bay.:rolleyes:

ncx,

I realized these two hoses are for upper and lower cylinder heads. It's hard to remove the hose from the rear firewall, there is not much room to place a small tool back there.

You have to remove the plastic shroud where the microfilter sits, do a search, one of the members here posted instructions on how to remove, it's not hard to do, the hardest part was putting the clamp on the bottom hose, but no big deal.

Anyone clean the gunk out of the little tube where upper and lower cydinder valves?

Just replace my sparkplug with NGK PLATIUM the car runs much smoother, especially startup noise went away. A Big thumb up for Japanese sparkplugs.

I thought this was it

http://www.realoem.com/bmw/showparts...17&hg=11&fg=15