Quote:
Originally Posted by Trimark
You can top it up with distilled water or add coolant for aluminum radiators. The BMW branded coolant is similar to any other branded coolant for aluminum radiators.
Your coolant level must be very low, as the error message doesn't pop up when the coolant is slightly below minimum. Btw the M550 has two coolant tanks, you should check both. If you open the top, the coolant should be between min and max.
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Now I just started the car, and there isn't any issues. Says everything is good….