Page 106 of 474
105 Controls in detail
Seats
Lumbar support*
The curvature of the seats can be adjusted 
to help enhance lower back support and 
seating comfort.
1Upper seat curvature
2Lower seat curvature
Switch on the ignition (page 37).
Turn adjustment wheels 1 and 2 
until you have reached the desired seat 
curvature.
AIRSCARF neck-level heating*
The AIRSCARF neck-level heating provides 
the area surrounding the occupants’ necks 
with a heated air stream flowing from 
openings in the head restraints.
1AIRSCARF switch
2Indicator lamps
Warning!G
When switching on the AIRSCARF neck-level 
heating, the air streaming from the openings 
may be very hot. When in close proximity to 
the openings, you could be seriously 
burned. To help avoid serious personal 
injuries, switch the AIRSCARF to a lower 
heating level. 
     
        
        Page 107 of 474

106 Controls in detail
Seats
Red indicator lamps2 on AIRSCARF 
switch 1 show which heating level you 
have selected:
Switch on the ignition (page 37).Switching on
Press the AIRSCARF switch1 for the 
desired side.
All three indicator lamps 2 on 
respective AIRSCARF switch 1 come 
on. After a preheating time of approxi-
mately 7 seconds, the blower starts.
Press AIRSCARF switch 1 repeatedly 
until the desired AIRSCARF heating 
level for the corresponding seat is 
reached.Switching off
Press AIRSCARF switch1 repeatedly 
until all indicator lamps 2 on 
AIRSCARF switch 1 go out.
Level
3Three indicator lamps on 
(highest level).
2Two indicator lamps on.
1One indicator lamp on 
(lowest level).
offNo indicator lamp on.
iAfter switching off the AIRSCARF neck-level 
heating, the AIRSCARF fan continues to operate 
for approximately 10 seconds to cool down the 
heater elements.
iIf one or more indicator lamps2 on 
AIRSCARF switch 1 are flashing, there is insuf-
ficient voltage available since too many electri-
cal consumers are turned on. The AIRSCARF 
neck-level heating switches off automatically.
The AIRSCARF neck-level heating will switch 
back on again automatically as soon as sufficient 
voltage is available. 
     
        
        Page 108 of 474

107 Controls in detail
Memory function*
Memory function*
Prior to operating the vehicle, the driver 
should check and adjust the seat height, 
seat position fore and aft, and seat back-
rest angle if necessary, to ensure adequate 
control, reach and comfort. The head re-
straint should also be adjusted for proper 
height. See also the section on air bags 
(
page 66) for proper seat positioning.
In addition, adjust the steering wheel to 
ensure adequate control, reach, operation 
and comfort. Both the interior and exterior 
rear view mirrors should be adjusted for 
adequate rear vision.
Fasten seat belts. Infants and small 
children should be seated in an appropri-
ate infant or child restraint system which is 
properly secured by a lap-shoulder belt 
and that complies with U.S. Federal Motor 
Vehicle Safety Standards 213 and 255 
and Canadian Motor Vehicle Safety 
Standards 213 and 210.2.With the memory function you can store up 
to three different configurations.
Each store position on the driver’s side 
includes the following settings:
Seat position
Steering wheel position
Exterior rear view mirrors’ position
Each store position on the passenger side 
includes the following setting:
Seat positionThe memory button and memory position 
switch are located on the outer side of 
each seat.
1Memory buttonM
2Memory position switch
Switch on the ignition (page 37).
or
Open the respective door.
Warning!G
Do not activate the memory function while 
driving. Activating the memory function 
while driving could cause the driver to lose 
control of the vehicle. 
     
        
        Page 117 of 474

116 Controls in detail
Lighting
Switching on hazard warning flasher
Press hazard warning flasher 
switch1.
All turn signal lamps are flashing.
Switching off hazard warning flasher
Press hazard warning flasher switch1 
again.
Interior lighting
The controls are located in the overhead 
control panel.
1Interior lighting on/off
2Automatic control on/off
3Right reading lamp on/off
4Left reading lamp on/offAutomatic control 
Deactivating
Press automatic control switch2 until 
it engages at a deeper position than the 
other switches.
The interior lighting remains switched 
off in darkness, even when you
unlock the vehicle
remove the SmartKey from the 
starter switch
open a door
iWith the hazard warning flasher activated 
and the combination switch set for either left or 
right turn, only the respective turn signals will 
operate when the ignition is switched on.
iIf the hazard warning flasher has been 
activated automatically, press hazard warning 
flasher switch1 once to switch it off.
!An interior lamp switched on manually does 
not go out automatically.
Leaving an interior lamp switch in the ON posi-
tion for extended periods of time with the engine 
turned off could result in a discharged battery.
iThe interior lighting is factory-set to 
automatic mode.
iWhen you open the trunk, the trunk lighting 
switches on automatically. 
     
        
        Page 119 of 474

118 Controls in detail
Instrument cluster
A full view illustration of the instrument 
cluster can be found in the “At a glance” 
section (
page 26).
1To brighten instrument cluster 
illumination (knob+)
2To dim instrument cluster 
illumination (knob-)
3Reset buttonJ 
The instrument cluster is activated when 
you
open a door
switch on the ignition (page 37)
press reset buttonJ 
switch on the exterior lampsFor information on changing the instru-
ment cluster settings, e.g. the language, 
see “Instrument cluster submenu” 
(
page 139).Adjusting instrument cluster 
illumination
Adjusting
Use knobs 1 or 2 to adjust the illumina-
tion brightness of the instrument cluster.
To brighten illumination
Press knob1 briefly.
The instrument cluster illumination 
brightens.
To dim illumination
Press knob2 briefly.
The instrument cluster illumination 
dims.
iOpening a door or pressing the reset 
buttonJ without switching on the ignition or 
the exterior lighting activates the multifunction 
display illumination only for 30 seconds.
Warning!G
No messages will be displayed if either the 
instrument cluster or the multifunction 
display is inoperative.
As a result, you will not be able to see 
information about your driving conditions, 
such as speed or outside temperature, 
warning/indicator lamps, 
malfunction/warning messages or the 
failure of any systems. Driving characteris-
tics may be impaired.
If you must continue to drive, do so with 
added caution. Contact an authorized 
Mercedes-Benz Center as soon as possible.
iThe instrument cluster illumination 
automatically adjusts to the ambient light.
You can only adjust the brightness of the instru-
ment cluster illumination when it is dark outside.
iWith the exterior lighting switched on, the 
brightness of the switches in the center console 
will also be adjusted when using knob 1 or 2. 
     
        
        Page 131 of 474
130 Controls in detail
Control system
Press button j repeatedly until the 
RACETIMER appears in the 
multifunction display.
1Gear indicator
2RACETIMER
3Lap numberStarting the RACETIMER
Press button æ.
The timer starts.
Displaying intermediate time
Press button ç while the timer is 
running.
The intermediate time is shown for 
5 seconds.Stopping the RACETIMER
Press button æ.
The timer stops.
iYou can start the RACETIMER when the 
engine is running or the starter switch is in 
position2 (
page 37).
iWhile the RACETIMER is being displayed, 
you cannot adjust the audio volume using 
buttonsæ or ç.
iWhen you stop the vehicle and turn the 
SmartKey to position 1 (
page 37), the 
RACETIMER stops timing. Timing is resumed 
when you switch the ignition back on 
(
page 37) or restart the engine (page 51) 
and then press the æbutton.
 
     
        
        Page 169 of 474

168 Controls in detail
Good visibility
For information on the windshield wipers, 
see “Windshield wipers” (
page 56).
Headlamp cleaning system*
The headlamps will automatically be 
cleaned with a high-pressure water jet 
when you have
switched on the headlamps
and
operated the windshield wipers with 
windshield washer fluid five times
When you switch off headlamps, the 
counter resets.
For information on filling up the washer 
reservoir, see “Windshield washer system 
and headlamp cleaning system*” 
(
page 301).
Rear view mirrors
For more information on setting the rear 
view mirrors, see “Mirrors” (
page 46).
Interior rear view mirror, antiglare 
position
Tilt the mirror to the antiglare night 
position by moving the lever towards 
the windshield.
The interior rear view mirror is dimmed.Auto-dimming rear view mirrors*
The reflection brightness of the exterior 
rear view mirrors and the interior rear view 
mirror will respond automatically to glare 
when
ignition is switched on
and
incoming light from headlamps falls on 
the sensor in the interior rear view 
mirror
The rear view mirrors will not react if
reverse gearR is engaged
interior lighting is switched on 
     
        
        Page 176 of 474

175 Controls in detail
Climate control
Switching climate control system 
on/off
Switching off
Set air volume control2 (page 174) 
to position0.
Switching on
Switch on the ignition (page 37).
Set air volume control2 to any speed 
(
page 174).
The previous settings are once again in 
effect.
Setting the temperature
Use temperature controls1 and4 
(
page 174) to separately adjust the air 
temperature on each side of the passenger 
compartment. You should raise or lower 
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C). 
The climate control will adjust to the set 
temperature as fast as possible.
Increasing
Turn temperature control 1 
and/or4 (
page 174) slightly 
clockwise.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Warning!G
Follow the recommended settings for 
heating and cooling given on the following 
pages. Otherwise the windows could fog up, 
impairing visibility and endangering you and 
others.
iIf the vehicle interior is hot, ventilate the in-
terior before driving off. The climate control will 
then adjust the interior temperature to the set 
value much faster.
Keep the air intake grille in front of the wind-
shield free of snow and debris.
When the retractable hardtop is closed, do not 
obstruct air flow by placing objects on the air 
flow-through exhaust slots below the rear 
window.
Warning!G
When the climate control is switched off, the 
outside air supply and circulation are also 
switched off. Only choose this setting for a 
short time. Otherwise the windows could 
fog up, impairing visibility and endangering 
you and others.