See also:

Messages after trip completion
Special messages that are displayed during driving are displayed again after the ignition is switched off. ...

For the 530i, 535i, 550i, 525d, 530d and 535d: check oil level
The concept The oil level is monitored electronically and displayed on the Control Display. Requirements ▷ The engine must be running and warm after the vehicle has been driven for at lea ...

Remove attached partsfollowing use
Remove auxiliary mirrors, roof or rear luggage racks which are no longer required following use. Attached parts on the vehicle impair the aerodynamics and increase the fuel consumption. ...