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#1 (permalink) Old 12-07-2008, 02:06 PM
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Cooling System overhaul question

I'm about to do a major overhaul of my cooling system on my 2000 323i and I was wondering on what coolant I should use? Can I use a normal extended type coolant or do I need special OEM coolant?

Thanks

Dan..
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#2 (permalink) Old 12-07-2008, 05:54 PM
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I have the same year and model car and I used Prestone 50/50 extended life antifreeze/coolant. I had to replace the coolant expansion tank and upper radiator hose recently and that is what I used. Make sure you properly bleed the air out of the system when you are done with your repairs. Good luck
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#3 (permalink) Old 12-07-2008, 06:03 PM
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I would use BMW coolant/antifreeze or any other high-end product that has been developed with the avoidance of electrolysis in mind. I have always used BMW coolant on my cars.

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#4 (permalink) Old 12-08-2008, 01:38 PM
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You dont need to buy BM,although some do prefer to, any antifreeze concentrate is fine just make sure you mix it 50/50 that should be down to around -38, if you are in Siberia or the North of Canada, your local auto shop will have the relevant coolant.

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#5 (permalink) Old 02-02-2009, 05:02 PM
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Truly any antifreeze is not fine. If you were driving a ford taurus sure use any coolant you like. I'm in complete agreement with Drv for the reasons he has stated. If you were trying to save a dollar here or there, my only advice would be to drain your cooling system completely. After draining it, flush it with distilled water until it looks as close to clear as you can get it. I've read too many horror stories about people mixing coolant types, especially with the BMW Genuine coolant, and getting a dark sludge build-up through out the cooling system. Just be safe and spend a few bucks on some distilled water and a $18/gallon of NON-MIXED BMW Genuine coolant. Go to BavAuto.com
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#6 (permalink) Old 02-02-2009, 07:37 PM
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I am guessing the original poster already made a decision in the two months that have passed since the thread was created

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