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Thread: What's this?

  1. #1
    Join Date
    Aug 2016
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    1992 850i, 2015 M5

    What's this?

    Anyone know what this connects to (or doesn't connect to)? Found it tucked away under radiator drivers side.

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  2. #2
    Join Date
    Aug 2010
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    Victoria, Canada
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    850i, Z3 2.3, X5 4.8is
    That connects to an automatic recirculation sensor I believe. Sensor detect air quality coming in to the front of the engine.
    Live, Love, Life, Amazing...

  3. #3
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    Goods call. Any idea where the connecting end is?

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  4. #4
    Join Date
    Jan 2004
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    Toronto, Canada
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    BMW 850CSi
    The connecting end is to a 4"x3" black box that would be attached to the back left side of the radiator only if the car is equipped with the AUC (Automatic Recirculate) option.

  5. #5
    Join Date
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    Quote Originally Posted by Dr. T View Post
    The connecting end is to a 4"x3" black box that would be attached to the back left side of the radiator only if the car is equipped with the AUC (Automatic Recirculate) option.
    Amazing. Thanks!

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  6. #6
    Join Date
    Mar 2014
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    san Jose california usa
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    1993 bmw 850ci
    Quote Originally Posted by Dr. T View Post
    The connecting end is to a 4"x3" black box that would be attached to the back left side of the radiator only if the car is equipped with the AUC (Automatic Recirculate) option.
    So if car is not equipped the plug will just be dangling there?
    1993 black bmw 850ci

  7. #7
    Join Date
    Aug 2016
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    Mclean, VA
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    1992 850i, 2015 M5
    Ya, there are a bunch of ends that have no place to connect because of various options offered.

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