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Thread: How do I replace my coolant/antifreeze myself?

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    Regular Member Ademusic's Avatar
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    Default How do I replace my coolant/antifreeze myself?

    Basically with the winter coming up, I was thinking of changing the coolant/antifreeze as I don't know when it was last done and like to know it's okay. Is this something I can do myself, and if so how do I do it? I'm more electrically minded so haven't the best idea of where to start on this. Any tips on how to do it would be great, or should I just get the garage to do it when I take it for a service? Thanks in advance

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    Regular Member m8internet's Avatar
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    Have you checked the gravity?

    I asked my dealership what the renewal interval was and it's not listed!
    On my previous cars it was typically between 5 and 10 years

    However, in most cases the radiator had rotten through before that interval!
    Therefore the coolant was replaced then instead

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    Pretty easy to change. There is a drain **** at the near the bottom of the radiator. If you do change it you may want to swap the Thermostat as well if your car seems to be running at less than 85 degrees - if you have a 1.9 CDTI that is

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    Full Member Big Sig's Avatar
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    Or just take the bottom hose off the rad and the cap off the expansion bottle.
    Now I need a turbo to keep up!

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    Parking slightly up the hill will most likely help you to prevent air bubbles in the heat matrix...

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    Regular Member Ademusic's Avatar
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    Nice one, thanks. After reading various other threads on this, I think I'll leave it. It's not causing any problems and the car is running great so why try to fix what's not broken. Thanks for the advice anyway

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    Regular Member Craig1985's Avatar
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    Just make sure you have the right mixture as it stops corrosion in the rad and around the head

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    Regular Member Ademusic's Avatar
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    Well I've only ever topped it up using genuine gm red coolant. Car never overheats or runs cold. Was fine last winter, so guessing it's ok.

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    Regular Member the-wizard's Avatar
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    Vehicle : vectra-c

    Trim : sri

    Engine : cdti

    Year : 2004

    Mileage : 98,000

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    Good man!, stick with what you know!, the GM orange anti is strong, and there now 'only just' putting the mix/strength info on there bottles, so you can know for sure what ur mixing. as for corrosion i think you'll find the rads ali so its not so much a problem.

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    Regular Member Ademusic's Avatar
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    Nice one, thanks! Will stick to fiddling round with wires and high voltages instead

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