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      07-28-2021, 03:01 PM   #9
doughboy650gc
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Drives: 2013 650i grand coupe
Join Date: Aug 2016
Location: massachusetts

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Quote:
Originally Posted by Opie55 View Post
Quote:
Originally Posted by doughboy650gc View Post
So I opened the fill tube on the driver's side before starting the car up and it made a vacuum sound when loosening up the cap. I saw coolant visible from the top so I closed it and fired the car up and now no more low coolant message. Could've it been air bubble/pocket? Had a coolant flush done at the dealer a year ago...
Don't assume it is not low simply because you can see coolant down the tube. You can see coolant down to 8" or more. The proper depth is 4.3 to 6.3". Now you may think "filling a skinny tube from 8" up to 6" would only take a few tablespoons." Not so. The inlet and outlet lines to the whole system are between those two distances. Going from 8" to 6" might take most of a quart.
True. I'll snag a jug and add some just to be safe thank you once again
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