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Thread: e46 expansion tank question????

  1. #1
    Join Date
    Jan 2013
    Location
    Pittsburgh, Pa.
    Posts
    81
    My Cars
    2001 BMW 330ci

    e46 expansion tank question????

    the thermostat at the bottom of the expansion tank where it meets the bracket....can the car operate temporarily without it until the part is ordered? I have everything but this part and really need my car before locating this part.

  2. #2
    Join Date
    Jan 2015
    Location
    Timaru, New Zealand
    Posts
    1,132
    My Cars
    Two Z3 Roadsters
    Its the thermostat that controls the auto transmission cooling. If its summer time in your area, then you can get away without it for a few days. If its cold weather, then your transmission will be sluggish.
    1999 2.8L Z3 Roadster,
    2000 3.0L Z3 Roadster,

    There is only one thing more pleasurable than working on a Z3, that's driving it top down on a fine day.

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