Oil separator/Valve cover gasket - Page 5

lo_jack · #41 03-11-2009, 01:21 PM

Quote:

Originally Posted by CALLI

Does the 02 X5 have this...and where,how and when...to do....I have owned this X5 for a bit over a year now...and have noticed in some of the threads..that some have noticed..sluggishness @ stops...could this be a cause...like @ a traffic signal stop, with air on>

Yes it does have this. As far as sluggish at idle, potentially. How is your mileage? Have you checked your spark plugs for oil/carbon? How about your adjuster unit? Pull that out and look for oily sludge.

There are a lot of factors involved in what you are describing, so you have to rule them out or specifically look into the parts of the system in question.

Quote:

Originally Posted by cavx5

i guess in germany it dosent get cold.ha ha.. and german engineers dont know shit about cold weather testing and engineering...

All X5s are manufactured in North Carolina.

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X5 Meister · #42 03-11-2009, 01:57 PM

South Carolina

lo_jack · #43 03-11-2009, 02:52 PM

Quote:

Originally Posted by X5 Meister

South Carolina

My mistake. Not Rykyavik, Oslo, or Siberia though.

X5 Meister · #44 03-11-2009, 03:09 PM

We must acknowledge our friends in Greer, South Carolina... my brother.

Pipes · #45 03-13-2009, 02:38 PM

Ghigo: Well I don't remove the cap completely because oil spits out, but when I unscrew it slightly, yes there is pressure when the valve gets stuck.

Calli: I think the issue exists only on 01-03 X5's. I didn't notice any performance issues, because it works good untill the valve freezes open/closed, then the pressure starts to build up in the crankcase.

cavx5: I totally agree with you. Today was +5C so I quickly re-connected the oil separator (10 secs to reconnect the valve cover pipe back) and it's working perfect again. I'll probably leave it like this if it stays warm, and sell the thing before next winter!!
They definitely were NOT thinking/testing for really cold climates. Hence why I'm shocked BMW does not recall this issue.

paulymano · #46 12-11-2009, 03:49 PM

Guys,
I was recently a victim of this. While getting on the interstate, I started to accelerate. Then the X5 started to misfire and huge white smoke coming from the tailpipe and the oil pressure dropped to nothing. It was -2 degrees that day. No smoke under the hood but oil was dripping down from under the engine onto the ground. I had to tow to the dealership (after sitting in the car freezing for an hour while waiting for the tow truck). Damn! Stealership verdict: Frozen crankcase ventilation system and blown valve cover gasket. Oil all over the engine, spark plugs has to be replaced, new oil separator crankcase ventilation system, new oil separator hoses, new O-rings, new intake gasket, new oil change and filter. Total cost over 3K!! Yikes!!

X5 Meister · #47 12-12-2009, 12:27 AM

SIB 110308 was updated September 2009 to include the N51 and S63 engines and to make a change to the specifications of a number of engines.

For the M42, M44, M52, M52TU, S52 ,M54, M60, M62, M62TU, M73 the specification increased from 10.0 mBar to 13.0 mBar.

For the N52K the specification was decreased from 30.0 mBar to 28.5 mBar.

paulymano · #48 12-12-2009, 01:29 AM

X5 Meister - You are the bomb!! thank you very much for sharing. I will make sure that the mechanic working on my car is aware of this. I get the car back this coming Tuesday (Dec. 15th). I noticed the whistling sound coming from under the hood when accelerating but had though it was nothing to worry about. It was whistling louder than normal, my buddy even mentioned it to me when I had given him a ride last week. Wish I could have researched it out under this forum and I might have prevented the expensive repair. Lesson learned..unfortunately the hard way.

shooter · #49 12-12-2009, 02:33 AM

Damn all these repairs make me nervous. Should I just replace my seperator with the updated one as preventive maintenance? Its an 02 4.4i w/90k. I've never really had anything break before (actually just an axle seal which still leaks) and would like to keep it this way! Knock on wood...

X5 Meister · #50 12-12-2009, 05:00 AM

paullymano - make sure you do a thorough search on the the oil separator. There is a ton of info on the board including the SIB's to cover all the X5's. For example see here:

http://www.xoutpost.com/bmw-sav-foru...under-cpo.html

shooter - you should at least open it up and have a look at it (clean it out, etc) just to be safe. See this thread:

http://www.xoutpost.com/bmw-sav-foru...-pictures.html

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