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Old 08-24-2020, 07:43 PM
ahlem ahlem is offline
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Join Date: Jan 2016
Location: Michigan
Posts: 397
ahlem is on a distinguished road
If you have a leak, most of the water will be leaking out.
You can get a coolant tester that looks like a big eye dropper with plastic balls in it. You can pull out coolant from the expansion tank with a turkey baster or a drill powered pump and check the mix and add some straight coolant to get to a 50/50 mix point.
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2001 x5 3.0 (sold with broken motor), 1990 e30 M3, 1991 318is, 2002 325i, 2008 335i Dinan stage 3 6 speed,
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