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Thread: Non Return Valve 11611312737 direction

  1. #1
    Join Date
    Jun 2017
    Location
    Montreal, Qc Canada
    Posts
    80
    My Cars
    1991 M535i

    Non Return Valve 11611312737 direction

    Hi guys,
    question regarding the round black and white non-return valve (or vacuum control valve) that is part of the emission system. It is located at the back of the engine bay, behind the intake manifold close to the firewall. #6 in the diagram.
    https://www.realoem.com/bmw/enUS/sho...diagId=11_2203
    There is a black side and a white side. Which way does it have to go on? Because it fits on both ways. But I'm sure it is directional. White side to the tube that goes to the intake manifold? Or other way around?
    Thanks guys.

  2. #2
    Join Date
    Aug 2009
    Location
    Silver Spring, MD
    Posts
    130
    My Cars
    03M3 17M540 18A5SB

    Suck on it. The side that flows goes toward the intake manifold.

    Because, think about it, it's a vacuum control valve, a non return valve, that bleeds whatever into the intake manifold.

  3. #3
    Join Date
    Jun 2012
    Location
    New Mexico
    Posts
    915
    My Cars
    2003 328i
    I want to say the black end goes to the manifold. Try sucking on it. Whichever side allows vacuum through the valve goes toward the manifold. If you install it the other way it will be closed all the time and nothing downstream from the valve would function.

  4. #4
    Join Date
    Jun 2017
    Location
    Montreal, Qc Canada
    Posts
    80
    My Cars
    1991 M535i
    Got it! Black side towards the manifold.
    Thanks guys, as usual -> You Rock!

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