Page 77 of 430

74 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Seat ventilation system
(optional, standard on model S 600)
The buttons are located on each door.
Seat ventilation can be activated manually with the
electronic key in starter switch positions 1 or 2, or by
the summer opening function (driver’s seat only), see
page 43.
Notes:
When in operation, the seat ventilation system
consumes a large amount of electrical power. It is not
advisable to use the seat ventilator longer than
necessary.The seat ventilators may automatically switch off if too
many power consumers are switched on at the same
time or if the battery charge is low. In this case, one or
more indicator lamps will blink.
The seat ventilation switch back on again automatically
as soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to
you, the seat ventilators can be switched off.
The maximum ventilation level (level 3) is automatically
selected if the driver’s seat ventilation is activated by
the summer opening function, see page 43.
Page 153 of 430

150 Flexible service system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
The service indicator disappears automatically after
30 seconds or if button Jon the instrument cluster is
pressed.
Calling up service indicator manually:
Turn the electronic key in starter switch to position 1
or 2.
Call up the trip odometer and main odometer by
pressing button è or ÿ on the multifunction
steering wheel until the display appears. See page 122.
Press button j or k until the FSS indicator
appears.
The next or previous system is displayed by pressing
button è or ÿ.
Important!
The FSS indicator does not include an engine oil level
indicator. See page 156 for engine oil level indicator.Note:
When disconnecting vehicle battery for one or more
days at a time, such days will not be counted. Any such
days not counted by the FSS can be added by your
Mercedes-Benz Center.
The interval between services is determined by the type
of driving for which the vehicle is used. For example,
driving at extreme speeds, and cold starts combined
with short distance driving in which the engine does not
reach operating normal temperature, reduce the interval
between services.
Page 179 of 430

176 Automatic climate control
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data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Economy mode
The function of this setting corresponds to the
automatic mode. However, because the air conditioning
compressor will not engage (fuel savings), it is not
possible to air condition in this setting.
Press AC
OFF
button to activate. The indicator lamp in the
button illuminates.
Press AC
OFF
button once again to return to the previous
setting. The indicator lamp in the button goes out.
Important!
In the ACOFF
mode the windows could fog up on the
inside. Switch off AC
OFF mode.Residual engine heat utilization
With the engine switched off, it is possible to continue
to heat or ventilate the interior for a short while,
dependent of the temperature setting of the automatic
climate control. Air volume and distribution are
controlled automatically.
To s e l e c t :
Turn the electronic key in starter switch to position 1
or 0 or remove it altogether.
Press button T. The display shows “REST”.
This function selection will not activate if the battery
level is insufficient.
Page 180 of 430

177 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index The function switches off automatically:
•if the electronic key in starter switch is turned to
position 2,
•after approximately 30 minutes (if residual engine
heat utilization is selected on the optional rear air
conditioner: after approximately 15 minutes),
•if the battery voltage drops.
Note:
The battery symbol # will appear in the automatic
climate control display some time before the residual
engine heat utilization is switched off if the battery
voltage drops.Switching the automatic climate control on and off
To switch off:
Press buttonM. The display shows “0”.
The fresh air supply to the vehicle interior is shut off.
While driving, use this setting only temporarily,
otherwise the windshield could fog up.
To switch on:
•press buttonM or P,
•press one of the U buttons so that it pops out and
then click it back in,
•press one of the temperature selector buttons or the
air volume switch.
Page 186 of 430

183 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Rear window defroster
Turn the electronic key in starter switch to position 2.
To select:
Press the F button in the control panel of the
automatic air conditioner. The indicator lamp in the
button illuminates.
To c a nc el:
Press the F button in the control panel of the
automatic air conditioner. The indicator lamp in the
button goes out.
Note:
Heavy accumulation of snow and ice should be removed
before activating the defroster. The rear window defroster uses a large amount of power.
To keep the battery drain to a minimum, turn off the
defroster as soon as the rear window is clear.
The defroster is automatically turned off after
approximately 6–17 minutes of operation depending on
the outside temperature and vehicle speed.
If several power consumers are turned on
simultaneously, or the battery is only partially charged,
it is possible that the defroster will automatically turn
itself off. When this happens, the indicator lamp inside
the switch starts blinking.
As soon as the battery has sufficient voltage, the
defroster automatically turns itself back on.
Page 189 of 430

186 Interior equipment
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data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Blocking of rear door window operation
If no operation of the rear door windows by switch (for
instance by children) is desired, slide override
switch (3) to the right; the N symbol becomes
visible.
Operation of the rear door windows with the switches
located in the driver’s door is still possible.
Note:
The operation of the rear door lighters and the setting of
the front passenger power seat from the rear is blocked.
See page 206 for lighter and page 80 for power seat
setting passenger position from rear.Synchronizing power windows
If the power supply was interrupted, (battery
disconnected or low), the windows cannot be opened or
closed by the express feature.
To resynchronize the express feature, press j side of
power window switch until the window is completely
closed and hold down for approximately 1 second.
Repeat procedure for each window.
The automatic full opening and closing procedure of the
windows should now be restored.
Page 192 of 430

189 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index With the roof closed or tilted open, a screen can be slid
into the roof opening to guard against sun rays. When
sliding the roof open, the screen will also retract.Notes:
The sliding / pop-up roof can also be opened and closed
using the summer opening / convenience feature, see
page 43, or pressing button O or e in the control
panel of the automatic climate control, see page 174 and
17 5 .
To avoid damaging the seals, do not transport any
objects with sharp edges which can stick out of the
sliding / pop-up roof.
The sliding/pop-up roof can be opened or closed
manually should an electrical malfunction occur, see
page 377.
Synchronizing the sliding / pop-up roof
The sliding / pop-up roof must be resynchronized if the
power supply has been interrupted (battery
disconnected or low), the sliding / pop-up roof has been
closed manually or the sliding / pop-up roof does not
open smoothly or malfunctions.
•Press the switch in the “raise” (3) direction, wait
until the sliding / pop-up roof is fully raised at rear
and hold the switch for approximately 1 second.
P68.00-0765-26
Page 194 of 430
191 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Note:
The time delay for the interior light to switch off after
the electronic key is removed from the starter switch
can be adjusted in the individual setting menu
“LIGHTING” – “INTERIOR LAMP DELAYED SHUT-OFF”.
See page 142.
To prevent the vehicle battery from being discharged
with doors open, all interior lamps switch off after
approximately 5 minutes, when the electronic key is
removed or in starter switch position 0.
6Interior lamps, front:
Press rocker switch in to switch front interior and
reading lamps on. The front interior lighting stays
on while the rocker switch is pressed in.
Switching off the front interior lighting:
Press rocker switch to position (4) or (5).Rear reading lamp
7The rear reading lamps (9) are switched on and off
individually with a switch (8) in the respective
lamp.
P68.00-0758-2698
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