2nd Gen R56 Cooper S Hose location? Found this hose laying on engine

Discussion in '2nd Generation: 2007+ R55 through R61' started by sargeman, Sep 29, 2015.

  1. sargeman

    sargeman New Member

    Sep 29, 2015
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    Hi,

    My wife's 2008 Mini Cooper Clubman S just started running rough. I checked all the plugs and it looks like cylinder 3 is misfiring as it was the only one that was black. We recently had the excess carbon build-up cleaned out by the dealer about 6 months ago so hopefully it doesn't need it again. I Seafoamed it today but no luck...still misfiring. Thinking this hose might be the culprit.

    When looking over the engine, I found this hose disconnected on both ends (see pics). Anyone know where this hose goes? It is about 6 inches long. Thanks for your help in advance.

    -Brian

    (for some reason, all the photos rotated to the left. Picture them rotated 90 degrees to the right)

    Hose (about 6 inches long):
    [​IMG]

    Found the hose here on the drivers side:

    [​IMG]

    Full view of engine:

    [​IMG]
     
  2. Metalman

    Metalman Well-Known Member
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    Sep 29, 2009
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    Vent pipe #6 for the automatic transmission...

    [​IMG]

    vent pipe.JPG
     
  3. MCS02

    MCS02 Moderator
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    I can't help but welcome to MA!
     
  4. nkfry

    nkfry New Member
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    Aug 12, 2013
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    As Metalman said; it's the vent tube for the automatic transmission. As for the misfire, you should have it looked into by a shop with a dealer level tool. It could be as simple as needing a coil replaced, but I wouldn't start throwing parts at it until you find the true culprit.

    Try moving the #3 coil pack to cylinder #1 and see if it follows, if so then you have evidence enough to buy a new coil.
     

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