See also:

After refilling diesel exhaust fluid
Incorrect fluid Incorrect fluids After refilling with the incorrect fluid, e.g., antifreeze for windshield wiper fluid, do not start the engine because this could result in a fire hazard. ...

Switching on/off
Switching on/off Press button 1 on the steering wheel. ▷ On: lane markings 2 are lit. ▷ Off: lane markings 2 go out. The system can issue warnings at speeds above approx. 40 mph/65 ...

Loss of the remote controls
Lost remote controls can be blocked by your service center. ...