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6 Series DIY
6 Series Do It Yourself (DIY) forum.

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  #1  
Old 10-25-2011, 05:52 AM
davids25040 davids25040 is offline
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How much coolant do I need for a flush?

I know to mix with distilled water, I just want to know proper ratios. By the way thanks to all for info on tune-up. It was still a pain, but all the info was absolutely necessary and much appreciated. Also Yorgi, your brake job DIY is phenomenal!
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  #2  
Old 10-25-2011, 09:47 AM
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Yorgi Yorgi is offline
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Check out this post.

I would HIGHLY recommend you use the blue coolant from the dealer. The dealer coolant is very high quality - phosphate free, very good rust inhibitors, etc.... you don't want to cause a premature rad failure ($1,000+) or even worse, a coolant pipe failure ($2K to $9K).

BMW coolant is cheap insurance.

If you are bored, you can read this big thread on coolant types.
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  #3  
Old 10-25-2011, 10:08 AM
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ECSTuning ECSTuning is offline
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I concur with Yorgi 100% on the use of BMW coolant/antifreeze. If you are going to do a total system flush 2 jugs of the OEM coolant mixed 50/50 with distilled water should fill her back up properly.

If it doesn't look like the photo below then it's not the BMW coolant/antifreeze which we suggest.


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  #4  
Old 10-25-2011, 11:59 PM
davids25040 davids25040 is offline
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Thanks for all the info. Im changing thermostat and wanted to flush at same time. I'll pickup some at dealer today. Great info owners manual said nothing?
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  #5  
Old 11-07-2011, 07:45 PM
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Superhart1977 Superhart1977 is offline
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I have an 05 645ci and I flushed yesterday but used a total of two gallons. 1 gallon BMW blue antifreeze and 1 gallon distilled water, water level is fine.
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  #6  
Old 11-07-2011, 10:41 PM
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Quote:
Originally Posted by Superhart1977 View Post
I have an 05 645ci and I flushed yesterday but used a total of two gallons. 1 gallon BMW blue antifreeze and 1 gallon distilled water, water level is fine.
Did you drain both the rad and the engine block, or just the rad?
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  #7  
Old 08-31-2012, 04:27 PM
pcm888usa pcm888usa is offline
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Rad Flush DIY

Is there a step by step DIY video posted to flush a E63 Rad?

Thanks.
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  #8  
Old 08-31-2012, 05:17 PM
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Yorgi Yorgi is offline
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Quote:
Originally Posted by pcm888usa View Post
Is there a step by step DIY video posted to flush a E63 Rad?

Thanks.
It's very easy.

Here are the TIS draining instructions.

Refilling is even easier, the system self bleeds.
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'02 Highlander - kid hauler
'01 330Ci - winter beater

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  #9  
Old 08-31-2012, 05:53 PM
pcm888usa pcm888usa is offline
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Thank you so much. Will give it a try. I saw some posting about putting a garden host and back flush the radiator. I guess not a good idea?
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  #10  
Old 09-01-2012, 07:10 AM
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Yorgi Yorgi is offline
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Quote:
Originally Posted by pcm888usa View Post
Thank you so much. Will give it a try. I saw some posting about putting a garden host and back flush the radiator. I guess not a good idea?
Yes bad idea. I would not put tap water in my cooling system. Some of the tap water will remain after the flush. The flush is not required in the first place if you stick to BMW coolant, which does not gum up like cheap coolant typically sold in North America.
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'02 Highlander - kid hauler
'01 330Ci - winter beater

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