See also:

Oil change
An oil change should be carried out by your service center only. ...

Swapping the telephone and additional telephone
The function of the telephone and additional telephone can be swapped automatically. 1. "Telephone" 2. "Bluetooth® (phone)" 3. "Swap phone/addit. phone" ...

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. ...