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  1. #1
    Join Date
    Jan 2013
    Location
    Raleigh, NC
    Posts
    57
    My Cars
    1997 540I

    Vacuum Hose on dipstick

    On my 2006 BMW X5, There is a vaccum hose hanging that is connect to my oil dipstick. I am assume this is what is causing my check engine light to come on. Can anyone tell me where this line is connect to. I looked on realoem and I did not find anything. Any advice would be appreciated.

  2. #2
    Join Date
    Jan 2016
    Location
    Montreal/Cape Coral
    Posts
    207
    My Cars
    2012 X6 35i
    I'm pretty sure that if you were to look at all places reached by the hose, you'd find it
    2007 FJ Cruiser (best vehicle to date)
    2012 X6 35i Sport
    2013 ML350 BT
    2019 4Runner

  3. #3
    Join Date
    Oct 2007
    Location
    Middle TN
    Posts
    1,612
    My Cars
    Too many/Not enough
    If you have an M54, then the hose goes as shown on this diagram.
    Current Garage:
    91 e34 M5 - spoiled & demanding 27 y/o -glanzshwarz
    91 850i/6 -another spoiled & demanding 27 y/o- schwarz-gone but never forgotten
    06 325i - undeserving, spoiled & demanding 27 y/o daughter's DD-hellrot
    03 MINI Cooper S JCW -spoiled & demanding, yet deserving wife's DD - Chili/Panther
    05 X3 3.0i -family workhorse - diamond schwarz
    12 X5 3.5d - torque monster - space gray metallic
    86 GMC Cabellero - Old Faithful 32 y/o DD BMW Support Vehicle
    08 Cub Cadet 19HP 46" hydrostatic- yard vehicle
    88 Schwinn Sierra - 1WD Off Road Vehicle
    e31 & OHC BMW CCA #385540

  4. #4
    Join Date
    Jan 2007
    Location
    .
    Posts
    7,708
    My Cars
    .
    Hose #4 is the oil drain line from the crank case vent valve to the oil dipstick. It typically rots at the top of the hose where it attaches to the CCV.
    ASE and BMW Master Certified Technician

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