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Thread: bubbling coolant Sound after stop the car

  1. #1
    Join Date
    Jan 2007
    Location
    Raby NSW
    Posts
    13

    bubbling coolant Sound after stop the car

    I have a 1998 v6 Passat. I have notice that if I lift the hood after a run that I can hear bubbling sound coming from the coolant bottle area.

    Is this normal or any know symptoms? Thanks

  2. #2
    Join Date
    Oct 2006
    Location
    sydney
    Posts
    611
    normal due to the fact the coolant is stil hot

  3. #3
    brackie Guest

    De-gassing tank

    The correct name for the "coolant bottle" is a de-gassing tank, so the bubbles show that it's doing what it's designed to do. The trick is to recognise an abnormal amount of gas so if you're motor isn't overheating I would sleep well tonight

  4. #4
    midget Guest

    try running around without the aircon on and see if you still have the sound afterwards

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