System limits

The system cannot serve as a substitute Personal responsibility

The system cannot serve as a substitute for the driver's personal judgment of the course of the road and the traffic situation.

In the event of a warning, do not jerk the steering wheel, as you may lose control of the vehicle.

The system may not be fully functional in the following situations:

  • In heavy fog, rain or snowfall.
  • In the event of worn, poorly visible, merging, diverging, or multiple lane markings such as in construction areas.
  • When lane markings are covered in snow, ice, dirt or water.
  • In tight curves or on narrow lanes.
  • When the lane markings are covered by objects.
  • When driving very close to the vehicle in front of you.
  • When driving toward bright lights.
  • When the windshield in front of the interior rearview mirror is fogged over, dirty or covered with stickers, etc.
    See also:

    Active seat ventilation
    Switching on Press the button once for each ventilation level. The highest level is active when three LEDs are lit. Switching off Press the button longer. The LEDs go out. ...

    Automatic mode
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    Configuring the prewarning
    After the warning function is switched on, the following can be set via the iDrive: The prewarning can be switched on/off. The time of the prewarning can be set. These settings have no effe ...