Malfunction
HDC is temporarily unavailable in the following situations due to a high brake temperature:
▷ The LED in the button and the display HDC
go out during HDC operation.
▷ The LED in the button and the HDC display
do not light up when the button is pressed.
See also:
Priority options
The driver has priority
The source selected via iDrive in the front is
output on the vehicle loudspeakers and can
be selected but not operated from the rear.
Other audio or video sources ...
Configuring the warning time
After the warning function is switched on, the
warning time can be set via the iDrive. For a late
warning time, prewarning is deactivated.
These settings have no effect on the time of the
warni ...
System limits
Check the traffic situation as well
PDC cannot serve as a substitute for the
driver's personal judgment of the traffic situation.
Check the traffic situation around the vehicle
with your own ey ...