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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 ...

Head restraints
Correctly adjusted head restraintA correctly adjusted head restraint reduces the risk of neck injury in the event of an accident. Adjust the head restraint in such a way that its center is at ap ...

Environmental conditions
Say the commands, numbers, and letters smoothly and with normal volume, emphasis, and speed. Always say commands in the language of the voice activation system. When selecting a radio ...