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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 10-05-2012, 11:45 AM
Stiglitz Stiglitz is offline
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Coolant System Questions

How much coolant do I need to pick up. I searched a few places and from what i gather just one gallon of BMW coolant and 1 gallon distilled water. Right?
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  #2  
Old 10-05-2012, 11:50 AM
ventsyv ventsyv is offline
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Yes, 1 gallon coolant & 1 gallon water will be enough to fill up the whole system. Obviously, if you are topping off, you'll need less than that.
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Old 10-05-2012, 11:50 AM
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goosefoot33 goosefoot33 is online now
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You are correct, although it's a great idea to pick up an extra gallon (of each) in case you need to top it off.

Edit: read this short thread: http://forum.e46fanatics.com/showthread.php?t=735677

OTOH, I've never seen anything posted on e46f that was intelligent enough to re-post here. There's a first for everything!

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Last edited by goosefoot33; 10-05-2012 at 11:54 AM.
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Old 10-05-2012, 11:58 AM
ventsyv ventsyv is offline
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1 gallon is the only size available, so ...
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Old 10-05-2012, 06:16 PM
Stiglitz Stiglitz is offline
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One gallon is the only size available NO WAY DUDE...der I was referring to if I needed more then (1) one gallon jug pretty sure there isn't a bmw coolant crisis going on which restricts that I can only buy one gallon. God some people need to go to community college and take some reading comprehension classes.
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Old 10-05-2012, 10:27 PM
GoForthFast GoForthFast is offline
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Capacity of coolant system is something like nine liters, so to get a 50/50 mix, need more than a gallon of each.

Inconvenient truth.

I saved my excess from last time so this time I'll only need to buy another gallon.
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Old 10-05-2012, 11:15 PM
lgr122 lgr122 is offline
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8.4 liters says my repair manual for 6-cylinder engines.
If having one gallon of coolant it would make 45% coolant / 55% water mixture.

If you were in south i would say it's close enough, but in north that antifreeze function is important also.
Can get cracked engine, if coolant isn't strong enough.

Last edited by lgr122; 10-05-2012 at 11:33 PM.
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Old 10-06-2012, 06:33 PM
Stiglitz Stiglitz is offline
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So the Stewart pump hype is real for anyone scratching their head at the difference in price this thing is a beast compared to the factory one
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