Vehicle storage
If your vehicle is to be decommissioned for longer than three months, your BMW center or a workshop that operates according to BMW specifications will be glad to advise you.
See also:
Coolant temperature
Should the coolant, and with it the engine, become
too hot, a Check Control message is displayed.
Check the coolant level. ...
Close the windows and glass sunroof
Driving with the glass sunroof and windows
open results in increased air resistance and
raises fuel consumption. ...