ad blue MERCEDES-BENZ S500 2005 W220 Owner's Manual

127 Controls in detailSeats
Seat ventilation*
The switch is located on the door. Seat
ventilation can be activated manually with
the ignition switched on. The driver’s seat
ventilation can be activated automatically
by the summer opening feature
(page 209).
The blue indicator lamps on the switch
show the ventilation level selected:
1Seat ventilation switch

Switch on ignition (
page 34).
Switching on seat ventilation

Press switch1.
Three blue indicator lamps above the
switch come on.
Continue pressing switch1 until the
desired seat ventilation level is
reached.Switching off seat ventilation

Press switch1 repeatedly until all in-
dicator lamps go out.
Level3
Three indicator lamps on
2
Two indicator lamps on
1
One indicator lamp on
off
No indicator lamp on
iThe seat ventilation for the driver’s seat
is automatically set to the highest level
if activated via summer opening fea-
ture (
page 209).
!If one or all of the lamps on the seat
ventilation switch are flashing, there is
insufficient voltage since too many
electrical consumers are switched on.
The seat ventilation switches off auto-
matically.
The seat ventilation will switch back on
again automatically as soon as suffi-
cient voltage is available.

196 Controls in detailAutomatic climate controlAdjusting the temperature for center
air vents
When outside temperatures are low, you
can manually raise the air temperature for
the center and side air vents. The
thumbwheel4 is located between the
center air vents (
page 192).
Automatic temperature control

Turn thumbwheel 4 to A.
The indicator lamp above the thumb-
wheel comes on. The temperature is
automatically adjusted to the set value.Turning on warm air

Turn thumbwheel 4 in the direction of
the white marking.
Warm air will enter from the center air
vent.
Turning on cooler air

Turn thumbwheel4 in the direction of
the blue marking.
Cooler air will enter from the center air
vent.
Adjusting air distribution
Use air distribution controlsc and6
(page 194) to separately adjust the air
distribution on each side of the passenger
compartment. The following symbols are
found on the controls:Symbol
Function
h
Directs air through the cen-
ter air vents
d
Directs air to the windows
»
Directs air into the entire
vehicle interior
c
Directs air to the footwells