Mercedes-Benz GLC : Parking Assist PARKTRONIC / Adjusting the volume of the warning tones
Select Warning Tone Volume.
Set a value.
Other information:
..
The diagnostics connection is a technical interface
in the vehicle. It is used, for example, within
the scope of repair and maintenance work or for
reading out vehicle data by a specialist workshop.
Diagnostic devices should therefore only
be connected by a qualified specialist workshop...