Mercedes-Benz GLC : Vehicles with Parking Assist PARKTRONIC / System failure
If the rear view camera is not operational, the
following display appears in the multimedia system.

The following camera views are available in the
multimedia system:
Normal view
Yellow lanes marking the course
the tires
will take with the current steering angle
(dynamic)
Yellow guide line, vehicle
width (driven surface)
depending on the current steering
angle (dynamic)
Red guide line at a distance of
approximately
1...
The rear view camera will not function or will
only partially function in the following situations:
The tailgate is open.
There is heavy rain, snow or fog...
Other information:
..
The ECO display summarizes your driving characteristics
from the start of the journey to its
completion and assists you in achieving the
most economical driving style.
You can influence consumption by doing the following:
Driving with particular care
Driving the vehicle in drive program
Observing the gearshift recommendations
The inner segment will light up and the outer
segment will fill up when the following driving
style is adopted:
Moderate acceleration
Gentle deceleration and
rolling
Consistent speed
The inner segment will not light up and the outer
segment will empty when the following driving
style is adopted:
Sporty acceleration
Heavy braking
Fluctuations in speed
The ECO display will show you when you have
driven economically:
The three outer segments are completely filled
simultaneously...