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oil separator

  1. Front Oil separator "connector" Oring m62

    E39 (1997 - 2003)
    I have a question. I am currently undertaking the timing guide/intake manifold job on my 1997 bmw 540i M62 (prevanos). I am currently switching out the Front OSV and I noticed i there are 2 orings needed (#5) I one is on the outside where the OSV neck hooks in then there is this other one that...
  2. Problems after Replacing the oil separator

    E46 (1999 - 2006)
    I had just replaced my oil separator and put everything back into place, but when i turnt the car on it had a little shake to it but that went away after a little while. The real problem i had was a little constant clicking noise by the throttle and when i reved my car up to atleast 3k rpm the...
  3. M54 Engine Vacuum Leak (lean codes both banks) ***PLEASE HELP***

    E39 (1997 - 2003)
    i have a 2001 525i and it runs good but occasionally i get lean codes for bank 1 and 2. i have looked high and low and cannot find where a leak may be coming from. the intake boot is ok. the hoses are all plugged in and not cracked. i did recently take apart the oil separator system to replace...
  4. 2005 X5 3.0 - Oil Separate - PCV

    X5 E53 (1999 - 2006)
    My 2005 x5 3.0 has recently been leaking quite a bit of coolant. It then started to emit thick clouds of white smoke every once in a while upon start up. It was probably only every 5 or so times that we started the vehicle. I was worried that coolant was getting into the cylinders so we had it...
  5. Blue Smoke on Startup

    X3 E83 (2004 - 2010)
    Hope this isn't a repost by me --- I thought I posted it last night, but can't find the thread??? Just got a 2004 X3, 2.5 liter. Has 130k miles, in very good condition, well maintained by past owners. Previous owner is a BMW mechanic at a dealership. It was his wife's car, and in the 15,000 or...
  6. Engine noise at low idle

    X5 E53 (1999 - 2006)
    My 2003 BMW X5 has a chirping noise at low idle. It goes away when I start to drive but around 500-700 RPM, it is very loud. I have recently replaced my DISA valve and searched on many forum topics which all the symptoms point to. I also have a suspicion it may be the CVV (Oil Separator)...
  7. The Dreaded Oil Separator CCV DIY Ingenious Idea

    X5 E53 (1999 - 2006)
    OK So I did The Dreaded Oil Separator DIY Yesterday with help from this and other blogs. No one actual had instructions for the E53 , they showed M54 engine ok but maybe not exact procedure as E53 X5. Took everything apart in 1 hour easy. Then put 1 st to Valve cover, easy, 2 nd hose going...
  8. CCV Replacement lessons learned...

    E46 (1999 - 2006)
    Replaced the CCV today on a 03-530, what a chore. Wasn't an overly difficult job, but gee whiz BMW engineering guys, could you not have put this thing somewhere more accessible. A few more feet of hose and you could just hang it off to the side without to much trouble. From what I could see...
  9. 2010 X5 35d and cold weather ... and problems?

    X5 E70 (2007 - 2013)
    Sorry for the duplicate ... pilot error
  10. 2010 X5 35d and cold weather ... and problems?

    X5 E70 (2007 - 2013)
    Gee ... I just ordered a fully-equipped X5 35d, and have started to read on this site and others about a lot of cold weather-related problems: oli separator (condensation freezes, jamming a value) active/passive diesel exhaust fluid tanks (freeze at 23 degrees F) low-battery due to small...
  11. Oil seperator

    E39 (1997 - 2003)
    How should the oil seperator behave? I have noticed quite a strong suction at the side of it. :dunno:
  12. High oil usage, HELP!!

    E46 (1999 - 2006)
    I have a 2003 330Ci with about 115,000 miles on it and I go through about a quart of oil every 750 miles. I had the oil separator replaced about two months ago, but this did not fix the problem even though the indy mechanic (Autowerkes near Bel Air for anyone in the MD area) said there was oil...
  13. Cold Start Problems

    X3 E83 (2004 - 2010)
    I love my 2004 2.5 X3 but I have just experienced a problem that has shaken me and the answer suggests that my X3 is not long for my garage. Last week when Chicago temps were at minus 15, I started my car drove for about six minutes to a business dinner and when I came out that evening, my car...
  14. Oil separator failure - so far $2300 bill

    X5 E53 (1999 - 2006)
    Here in WI it is very cold. Last Thursday was -15F with a colder wind chill. My X5 was parked in my garage, which is not heated but insulated. It was below 32 degrees in my garage. Drove to work Thurs am, all was good, parked outside in the lot. Came back at 5pm, started the car just fine, then...
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