See also:

Folding the rear bench seat forwards
If the driver's or front-passenger seat is set for a larger person, it may not be possible to fold the rear bench seat forwards. In this case, move the front seats as far forward as possible. ...

Switching the rear-compartment climate control on/off using the rear control panel
Turn the SmartKey to position 2 in the ignition lock. To switch on: press rocker switch 15 up or down and select AUTO. or Press rocker switch 15 up or down and select MAN. To switch of ...

Interior
The M-Class seats five people on front buckets and a three-place split rear seat that folds to expand cargo space to 81.2 cubic feet. An optional two-place third-row seat increases passenger capac ...