Quote:
Originally Posted by Johns8403
I would say that looks like Air in the expansion tank, if you have a leak and air is getting in you'd see some foam. When you topped it off what did you use? some colors aren't mixable with the BMW Blue.
If you have a leak air is getting in the system, which would cause you to overheat.
You'll need to fix the leak and then bleed the system using the electric waterpump. IF the electric waterpump isn't working you wouldn't be getting the stream on your picture, also you'd havea CEL.
I'd get it flushed once you've fixed it or do it yourself. Good Luck
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Could be that or a blown head gasket. That coolant went some where, either out or in. You could drain the oil and seem if coolant is in the oil or go to Harbor Freight and get their exhaust gas detection kit, uses color changing liquid in a tool to see if gas is detected.
I wouldn't drive the car again until you're sure, driving over heated can and will warp the head and cause a gasket leak and worse.