Mercedes-Benz GLC : Through-loading feature in the rear bench seat (EASY-PACK Quickfold) / Adjusting the angle of the rear seat backrests (cargo position)
To enlarge the cargo compartment, you can
adjust the seat backrests so that they are ten
degrees steeper (cargo position).

Fold the seat backrest
forwards.
Move bracket
in the direction of the
arrow.
Push seat backrest
back to bracket
until the backrest engages.
Requirements:
The left and center seat backrests are
engaged and joined together.
You can lock the center seat backrest release
catch if you want to secure the cargo compartment
against unauthorized access...
Other information:
On-board computer:
Head-up Disp.
Setting currently selected
Digital speedometer
Traffic Sign Assist
Navigation displays
The following can be adjusted for the Head-up
Display:
Position
Brightness
Display Content
To select a setting:
swipe upwards or downwards
on the left-hand Touch Control...
USA: "Radio based devices of this vehicle comply
with Part 15 of the FCC Rules. Operation is
subject to the following two conditions: 1) These
devices may not cause harmful interference, and
2) These devices must accept any interference
received, including interference that may cause
undesired operation...