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:
To preserve the engine during the first
1000 miles (1500 km):
Drive at varying road speeds and engine
speeds.
Do not drive at speeds greater than 85 mph
(140 km/h).
Drive the vehicle in drive program
or.
Shift to the next highest gear at the very latest
when the needle reaches the last third
before the red area in the tachometer...
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. The center
seat backrest can then be folded forwards only
together with the left seat backrest...