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Thread: Expansion tank nightmare

  1. #1
    Join Date
    Oct 2017
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    Colorado
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    My Cars
    2004 BMW 325i

    Expansion tank nightmare

    Hey guys I'm trying to replace my expansion tank and think that I accidentally put part of the broken atf thermostat into this hole, see pic below, sorry about the size...I cannot get this brass thing out and it's driving me crazy, am I nuts, is it supposed to be down in there?

  2. #2
    Join Date
    Oct 2017
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    Colorado
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    2004 BMW 325i

  3. #3
    Join Date
    Sep 2005
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    Peoria, AZ
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    03 zhp, 97 e36m3, 04 zhp
    Those thermostats break all the time. They go into the larger of the 2 pipes on the picture. I bet it broke off and what you see is what's left of it.

  4. #4
    Join Date
    Oct 2017
    Location
    Colorado
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    2004 BMW 325i
    Quote Originally Posted by Mless5 View Post
    Those thermostats break all the time. They go into the larger of the 2 pipes on the picture. I bet it broke off and what you see is what's left of it.
    Thanks. Right, the larger pipe has the new thermostat installed, but I'm asking if the smaller pipe in the picture is supposed to have the brass inside or if I messed that up, I can't get it out...

  5. #5
    Join Date
    Sep 2005
    Location
    Peoria, AZ
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    7,696
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    03 zhp, 97 e36m3, 04 zhp
    I don't recall for sure, I think there was plastic all around that smaller pipe connection, but I may be wrong.
    Last edited by Mless5; 10-09-2017 at 12:38 PM.

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