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Thread: Bleeding Cooling System on e39 540i

  1. #1
    f-ckouttahere. PROŽ's Avatar
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    Unhappy Bleeding Cooling System on e39 540i

    i have a couple somewhat nooooooobish questions.

    This morning I replaced my upper radiator hose.

    After replacing it, I filled the radiator to the top with anti-freeze, but then i later learned that the dipstick under the radiator cap should be flush with the opening (well at least thats what something i read said in another forum).

    Is putting too much antifreeze in bad?

    How do I know if I put too much coolant in?

    Also, how do I bleed the system completely of air?

    I looked at a couple of forums, but the information seemed contradictory, and now I'm confused. (maybe i was just tired when i read it all)

    so this is where im at:

    the radiator is full, and there are no more bubbles coming out of the bleeder screw. am i fine?

    thanks

  2. #2
    + MAKE EM SAY UHH + Black4DrEK's Avatar
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    Should be fine if there are NO more bubbles... Drive around for test drive. make sure everything is correct.

  3. #3
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    You bled at the radiator AND the thermostat? I spent about 2 hours completely bleeding one like yours a few weeks ago.

    They can take a LONG time to bleed completely. Very intricate cooling system...

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