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Cooling Sytem Work

Discussion in 'E46 (1999-2006)' started by Touring525i4dawgs, Mar 10, 2020.

    • Member

    Touring525i4dawgs '02 525it M sport

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    So I'm looking to do the inevitable clooing system replacement. Can it be done in stages? If so recommended order of steps if need to be done over 2-3 sessions.
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    • Technical Service Advisor

    charlson89

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    Easiest just to do it all at once.
    • Member

    Touring525i4dawgs '02 525it M sport

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    Thanks. Do you think it could be accomplished in one DIY with my local chapter? Is there a good video that might help out?
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    • Technical Service Advisor

    charlson89

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    Oh yah one session should be enough. Everything starts to overlap each other when doing the repair.
    • Member

    Touring525i4dawgs '02 525it M sport

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    Hi there. Hope you are well. so I'm planning my cooling refresh. Do you think an upgrade to aluminum radiator and upgrade water pump are worthy upgrades?
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    Scott

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    If you're going to hang on to the car for a while, then yes.

    If I had known we were going to put over 205,000 miles (so far) on our 1997 528i, I would have put in an aluminum radiator/overflow tank and a Stewart water pump a long, long time ago. And probably a SPAL fan as well.
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    • Member

    Touring525i4dawgs '02 525it M sport

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    Interesting fan unit. Much better?
    • Member

    Scott

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    I have the aluminum radiator/overflow tank,SPAL fan in my E36 M3 and it had pretty much eliminated the cooling system as a perpetual weak point. The fan is quiet, comes on when needed, is not a PITA to remove and reinstall like the factory fan, and there's no fan clutch to go bad.
    Touring525i4dawgs likes this.

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