Mercedes-Benz CL-Class 2011 - Manual (Page 321)

X To defrost: check the automatic air
conditioning settings ( Y page 260) and fold
down the camera cover ( Y page 415).
X To defrost the inside of the windshield:
fold down the camera cover ( Y page 415)
and clean the windshield ( Y page 413).
Driving systems
319
Driving and parking
Z