Page 124 of 514

123 Controls in detailSeats
Seat ventilation*
Both switches for the front seats are
located in the center console.
1Seat ventilation switchThe blue indicator lamps in the switch1
show which ventilation level you have
selected:
Switch on the ignition (
page 34).
All lamps in the instrument cluster
come on.
Switching on seat ventilation
Press seat ventilation switch1.
Three blue indicator lamps come on.
Press seat ventilation switch1
repeatedly until the desired seat venti-
lation level is reached.Switching off seat ventilation
Press seat ventilation switch1
repeatedly until all blue indicator 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
feature (
page 252).
iIf one or more of the indicator lamps on
the seat ventilation switch1 are flash-
ing, there is insufficient voltage due to
too many electrical consumers being
switched on. The seat ventilation
switches off automatically.
The seat ventilation will switch back on
again automatically as soon as
sufficient voltage is available.
Page 132 of 514

131 Controls in detail
Lighting
Rear fog lamp (driver’s side only)
Switch on the front fog lamps
(page 130).
Pull out the exterior lamp switch to
second stop.
The rear fog lamp is switched on.
The yellow indicator lamp† in the
exterior lamp switch comes on
(page 127).
Push in the exterior lamp switch to first
stop.
The rear fog lamp switches off.
The yellow indicator lamp† in the
exterior lamp switch goes out.
The front fog lamps remain lit.
Combination switch
The combination switch is located on the
left of the steering column.Combination switch1High beam
2High beam flasherHigh beam
Turn the exterior lamp switch to
positionB orU (
page 127).
Push the combination switch in
direction of arrow1 to switch on the
high beam.
The high beam headlamp indicator
lampA in the instrument cluster
comes on (
page 24).
Pull the combination switch in direction
of arrow2 to its original position to
switch off the high beam.
The high beam headlamp indicator
lampA in the instrument cluster
goes out.
High beam flasher
Pull the combination switch briefly in
direction of arrow2.
Page 137 of 514
136 Controls in detailInstrument clusterFor a full view illustration of the instrument
cluster, see “Instrument cluster”
(page 24).
1Reset button
The instrument cluster is activated when
you
open a door
switch on the ignition (
page 36)
press reset button1
switch on the exterior lamps
You can change the instrument cluster
settings in the Instrument cluster submenu
of the control system (
page 151).
Instrument cluster illumination
Use the reset button1 to adjust the
illumination brightness for the instrument
cluster.To brighten illumination
Turn reset button1 clockwise.
The instrument cluster illumination will
brighten.
To dim illumination
Turn reset button1 counterclock-
wise.
The instrument cluster illumination will
dim.
iThe instrument cluster illumination is
dimmed or brightened automatically to
suit ambient light conditions.
The instrument cluster illumination will
also be adjusted automatically when
you switch on the vehicle’s exterior
lamps.
Page 138 of 514

137 Controls in detail
Instrument cluster
Coolant temperature indicator
The coolant temperature indicator is on
the right side in the instrument cluster
(page 24).
During severe operating conditions, e.g.
stop-and-go traffic, the coolant tempera-
ture may rise close to 120°C.
The engine should not be operated with
the coolant temperature above 120°C.
Doing so may cause serious engine
damage which is not covered by the
Mercedes-Benz Limited Warranty.
Trip odometer
Make sure you are viewing the stan-
dard display in the multifunction dis-
play (
page 144).
If it is not displayed, press buttonè
orÿ on the multifunction steering
wheel repeatedly until the standard dis-
play appears (
page 140).
Press and hold the reset button on the
instrument cluster (
page 136) until
the trip odometer is reset.
Warning!
G
Driving when your engine is badly over-
heated can cause some fluids which
may have leaked into the engine com-
partment to catch fire. You could be se-
riously burned.
Steam from an overheated engine can
cause serious burns and can occur just
by opening the hood. Stay away from
the engine if you see or hear steam com-
ing from it.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
iExcessive coolant temperature triggers
a warning in the multifunction display
(page 398) and the red coolant warn-
ing lamp in the instrument cluster
comes on (
page 377).
Page 139 of 514

138 Controls in detailInstrument clusterTachometer
The red marking on the tachometer
(page 24) denotes excessive engine
speed.
To help protect the engine, the fuel supply
is interrupted if the engine is operated
within the red marking.
Outside temperature indicator
The outside temperature is indicated in the
multifunction display (
page 140).The temperature sensor is located in the
front bumper area. Due to its location, the
sensor can be affected by road or engine
heat during idling or slow driving. This
means that the accuracy of the displayed
temperature can only be verified by com-
parison to a thermometer placed next to
the sensor, not by comparison to external
displays (e.g. bank signs etc.).
When moving the vehicle into colder ambi-
ent temperatures (e.g. when leaving your
garage), you will notice a delay before the
lower temperature is displayed.
A delay also occurs when ambient temper-
atures rise. This prevents inaccurate tem-
perature indications caused by heat
radiated from the engine during idling or
slow driving.
!Avoid driving at excessive engine
speeds, as it may result in serious
engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Warning!
G
The outside temperature indicator is not de-
signed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Indicated temperatures just above the freez-
ing point do not guarantee that the road sur-
face is free of ice. The road may still be icy,
especially in wooded areas or on bridges.
Page 140 of 514

139 Controls in detail
Control system
Control system
The control system is activated as soon as
the SmartKey in the starter switch is
turned to position1 or as soon as the
KEYLESS-GO* start/stop button is in
position1. The control system enables you
to
call up information about your vehicle
change vehicle settings
For example, you can use the control sys-
tem to find out when your vehicle is next
due for service, to set the language for
messages in the instrument cluster dis-
play, and much more.
The control system relays information to
the multifunction display.
iThe displays for the audio systems
(radio, CD player etc.) will appear in En-
glish, regardless of the language se-
lected.
Warning!
G
A driver’s attention to the road and traffic
conditions must always be his /her primary
focus when driving.
For your safety and the safety of others,
selecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions
permit it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approxi-
mately 14 m) every second.
Page 149 of 514

148 Controls in detailControl systemSettings menu
In the
Settings
menu there are two
functions:
The function
Reset to factory
settings?
, with which you can reset all
the settings to the original factory
settings.
A collection of submenus with which
you can make individual settings for
your vehicle.
Press buttonè orÿ repeatedly
until the
Settings
menu appears in the
multifunction display.Resetting all settings
You can reset all the functions of all
submenus to the factory settings.
Press the reset button in the
instrument cluster (
page 136) for
approximately three seconds.
The request to press the reset button
once more to confirm appears in the
multifunction display.
Press the reset button once more.
The functions of all the submenus will
reset to factory settings.
iThe settings you have changed will not
be reset unless you confirm the action
by pressing the reset button a second
time. After approximately five seconds,
the
Settings...
menu reappears in
the multifunction display.
For safety reasons, the following
function is not reset while driving:
the
Lamp circuit headlamp
func-
tion in the
Lighting
submenu
Page 150 of 514

149 Controls in detail
Control system
Submenus in the Settings menu
Press buttonj.
The collection of the submenus
appears in the multifunction display.
Press buttonç.
The selection marker moves to the next
submenu.The submenus are arranged by hierarchy.
Scroll down with buttonç, scroll up
with buttonæ.
With the selection marker on the desired
submenu, use buttonj to access the
individual functions within that submenu.
Once within the submenu, you can use
buttonj to move to the next function
or buttonk to move to the previous
function within that submenu.
The settings themselves are made with
buttonæ orç.Resetting the functions of a submenu
For each submenu you can reset all the
functions to the factory settings.
Move to a function in the submenu.
Press the reset button (
page 136) in
the instrument cluster for approxi-
mately three seconds.
The request to press the reset button
once more to confirm appears in the
multifunction display.
Press the reset button once more.
All functions of the submenu will reset
to factory settings.iThe settings you have changed will not
be reset unless you confirm the action
by pressing the reset button a second
time. After approximately five seconds,
the
Settings
menu reappears in the
multifunction display.