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Old 10-03-2012, 09:42 PM   #15
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Join Date: May 2007
Location: TX
Posts: 4,045
My Ride: 330i
If anyone can tell me the volume of the air in the expansion tank for the minimum and maximum fill levels (when cold), I can calculate the pressure range at which our cooling system operates. Very simple physics.

My guts are telling me 1 bar might be too low.

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