Mercedes-Benz M-Class 2007 Owners Manual - Manual (Page 134)

133
Controls in detail
Seats
The blue indicator lamps in the switch
come on to show which ventilation level
you have selected.
̈ Switch on the ignition ( ୴ page 40).
Switching on
̈ Press button 1 repeatedly until the
desired ventilation level is set.
Switching off
̈ Press button 1 repeatedly until all
indicator lamps 2 go out.
Level
3 Three indicator lamps on
(highest level)
2 Two indicator lamps on
1 One indicator lamp on
(lowest level)
off No indicator lamp on
i The seat ventilation for the driver’s seat is
automatically set to the highest level if activated
via summer opening feature (
୴ page 239).