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Thread: Replace your coolant Mazda CX 5 CX3 Mazda 3 Mazda 6

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    Talking Replace your coolant Mazda CX 5 CX3 Mazda 3 Mazda 6

    Good day peeps , just would like to share with you all. Thank you . Enjoy.


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    Quote Originally Posted by felixd View Post
    Good day peeps , just would like to share with you all. Thank you . Enjoy.

    Thanks Felix! Very helpful!

    I have a ways to go on mine, but will keep this video in mind.
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    Arrow Replace your coolant Mazda CX 5 CX3 Mazda 3 Mazda 6

    I'd try to clean up the inside of coolant reservoir with a long brush.

    And is there a coolant drain on engine block?

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    Would you guys recommend flushing with distilled water between draining the old coolant and adding the new coolant? And if I remember right, the CX5 still holds old fluid in the block like yrwei is alluding to, correct?

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    Arrow Replace your coolant Mazda CX 5 CX3 Mazda 3 Mazda 6

    Quote Originally Posted by ruthrj View Post
    Would you guys recommend flushing with distilled water between draining the old coolant and adding the new coolant? And if I remember right, the CX5 still holds old fluid in the block like yrwei is alluding to, correct?
    My 2000 BMW 528i and 1998 Honda CR-V both offer a coolant drain plug on cylinder block. There's no issue to do more complete drain on old coolant. Heater core is another place to hold some old coolant which can't be drained unless you disconnect heater core hoses.

    With engine coolant used to cool down ATF for our SkyActiv-Drive transmission, there'll be more old coolant stuck in the transmission cooler.

    Yes, I did fill distilled water at least once just try to dilute those old coolant inside of heater core.

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    Donít forget to use FL22 coolant if the lid says so. Is not a general green coolant

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    Great video. Will be very helpful.

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    Yes if you can get the FL22 , please purchase it .

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    Regarding flusihing with distilled water-
    You can just fill it up with distilled water and drain rinse repeat several times to get the block and various trapped coolers cleaned out. In order to get the correct ratio of full strength coolant to water we would need to know the TOTAL system capacity AND what you can drain out by simply removing the drain plug. from there it is simply a math problem.
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    Arrow Replace your coolant Mazda CX 5 CX3 Mazda 3 Mazda 6

    Quote Originally Posted by TTBadDog View Post
    Regarding flusihing with distilled water-
    You can just fill it up with distilled water and drain rinse repeat several times to get the block and various trapped coolers cleaned out. In order to get the correct ratio of full strength coolant to water we would need to know the TOTAL system capacity AND what you can drain out by simply removing the drain plug. from there it is simply a math problem.
    This's exactly what I did when I replace the radiator on my 2000 BMW 528i few weeks ago. But I was lazy and I only fill-and-drained distilled water once.

    BMW has a drain hole on engine block, so as my 1998 Honda CR-V. Not sure if our Mazda CX-5 2.5L has one as that would help to drain the old coolant a lot more completely from engine block.

    The problem to me is every fluid capacity specified by Mazda is approximate. And from real-world experience true fluid capacities can vary a lot from specified capacities. Should I trust 8.1 US quarts of total capacity on engine coolant for US 2.5L?

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    Understood, doing the math would require we know the total capacity, I can measure what comes out. I suspect it would be close enoiugh. If I wound up at 0.40 or 0.60 concentration level you could just drain X out and add straight AF or Water to get there.
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    Quote Originally Posted by yrwei52 View Post
    This's exactly what I did when I replace the radiator on my 2000 BMW 528i few weeks ago. But I was lazy and I only fill-and-drained distilled water once.

    BMW has a drain hole on engine block, so as my 1998 Honda CR-V. Not sure if our Mazda CX-5 2.5L has one as that would help to drain the old coolant a lot more completely from engine block.

    The problem to me is every fluid capacity specified by Mazda is approximate. And from real-world experience true fluid capacities can vary a lot from specified capacities. Should I trust 8.1 US quarts of total capacity on engine coolant for US 2.5L?
    Does Mazda sell full strength coolant?

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    Quote Originally Posted by murky View Post
    Does Mazda sell full strength coolant?
    Yes.

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