Until you can verify the "source" that you read that said to use 2 quarts...my recommendation is to stick with the info from the owners manual and the other BMW tech info that says that the difference between the MIN & MAX measurement marks is approx 1 liter (to start with) if the measurement is at the MIN level. Then add more if needed (perhaps up to 1.3 liters?):

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• 2015 f06 650ix GC (Moonstone exterior/Cohiba brown Merino Leather interior)
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