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      07-17-2021, 12:23 PM   #24
Alpine650
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Drives: 2017 BMW 650i xDrive Vert
Join Date: Mar 2020
Location: MA

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I got the "Low Engine Coolant" warning message. I attempted to open the cap by the firewall on the drivers side - could not get it to budge. So I tried the coolant cap in engine middle. That one came right off so I added coolant - actually a little too much. It filled rather quickly leading me to believe I needed to fill by the firewall cap since they must be different. Started car up before trying cap by firewall again and to my surprise the Warning message was gone. So I have to assume the two are connected and when you get the warning for "engine" coolant low you can fill in either place?
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