How to purge air out of cooling system? | FerrariChat
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How to purge air out of cooling system?

Discussion in '456/550/575' started by ItalianOne, Nov 2, 2021.

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  1. ItalianOne

    ItalianOne Formula Junior
    Rossa Subscribed

    May 21, 2008
    619
    Mich
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    Kevin R
    #1 ItalianOne, Nov 2, 2021
    Watching my temp float around when I drive and believe I have a small air bubble in the cooling system. Is there a easy way to purge the air out on a 03 575? No over heating issues. Does the air bubble pass over the sensor then pass through the system? Is this why the temp moves up and down on my gauge??
     
  2. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,191
    Clarksville, Tennessee
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    Terry H Phillips
    #2 tazandjan, Nov 2, 2021
    Yup, there is a bleed screw on the thermostat housing. Make sure you turn the heater on full when doing the bleed. Can help to raise the nose, but not strictly necessary.
     
    belfry likes this.
  3. ItalianOne

    ItalianOne Formula Junior
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    May 21, 2008
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    Kevin R
    #3 ItalianOne, Nov 3, 2021
    Thanks Terry.. I will look for it..
     
  4. 12659

    12659 Formula Junior

    Oct 6, 2005
    349
    Seattle WA. USA
    Full Name:
    mark
    #4 12659, Nov 8, 2021
    I've found that you can un-screw the header tank cap just enough so it vents freely then drive around with the heater on. It sort of burps itself.
     

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