Mercedes-Benz 2007 GL 320 CDI Operator's Manual page 517

Practical hints
Replacing bulbs
Opening the side trim panels
Opening the driver's side trim panel:
1 Lock
2 Cover in left side trim panel
Turn lock 1 90° in direction of arrow.
Fold down cover 2.
516
1 Lock
2 Storage compartment
Insert a suitable object such as a coin
into the slot of lock 1.
Turn lock 1 counterclockwise by 90°
in direction of arrow.
Remove storage compartment 2.
Opening the passenger side trim panel:
1 Lock
2 Cover in right side trim panel
Insert a suitable object such as a coin
into the slot of lock 1.
Turn lock 1 counterclockwise by 90°
in direction of arrow.
Remove cover 2.