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. ...

ConnectedDrive or BMW Assist
...

Fuel quality
Refuel with unleaded fuel only Do not use leaded fuel as this would permanently damage the catalytic converter. Do not refuel with ethanol Do not refuel with E85, i.e., fuel with an ethanol c ...