Page 129 of 456

128 Controls in detailLightingSwitching on fog lamps
Switching on front fog lamps
Switch on the low beam headlamps
(page 52).
Pull out exterior lamp switch to first
stop.
The front fog lamps are switched on.
The green indicator lamp‡ in the
lamp switch comes on (
page 125).
Push in the exterior lamp switch.
The front fog lamps are switched off.
The green indicator lamp‡ in the
lamp switch goes out (
page 125).Switching on rear fog lamp (driver’s side
only)
Switch on the front fog lamps
(page 128).
Pull out exterior lamp switch to second
stop.
The rear fog lamp is switched on.
The yellow indicator lamp† in the
lamp switch comes on (
page 125).
Push in the exterior lamp switch to first
stop.
The rear fog lamp is switched off.
The green indicator lamp‡ in the
lamp switch goes out (
page 125).
The front fog lamps remain lit.
Warning!
G
In low ambient lighting or foggy conditions,
only switch from position U to B with
the vehicle at a standstill in a safe location.
Switching from U to B will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.iFog lamps will operate with the parking
lamps and/or the low beam headlamps
on. Fog lamps should only be used in
conjunction with low beam headlamps.
Consult your State or Province Motor
Vehicle Regulations regarding permis-
sible lamp operation.
iFog lamps cannot be switched on with
exterior lamp switch in position
U
.
For switching on the fog lamps, turn ex-
terior lamp switch to position
B
.
Page 130 of 456
129 Controls in detail
Lighting
Combination switch
The combination switch is located on the
left side of the steering column.
1High beam
2High beam flasherHigh beam
Turn exterior lamp switch to
positionB or toU
(page 125).
Push the combination switch in the di-
rection of arrow1 to switch on the
high beam.
The high beam indicatorA on the
instrument cluster comes on
(page 24).
Pull the combination switch back to its
original position to switch off the high
beam.
The high beam indicatorA on the
instrument cluster goes out.High beam flasher
Pull the combination switch briefly in
the direction2.
Page 131 of 456

130 Controls in detailLightingHazard warning flasher
The hazard warning flasher can be
switched on at all times, even with the
SmartKey removed from the starter switch
or with the SmartKey with KEYLESS-GO*
removed from the vehicle.
The hazard warning flasher switches on au-
tomatically when an airbag deploys.
The hazard warning flasher switch is locat-
ed on the upper part of the front center
console.
1Hazard warning flasher switchSwitching on the hazard warning
flasher
Press hazard warning flasher switch.
All turn signals will flash.Switching off the hazard warning
flasher
Press hazard warning flasher switch
again.
iWith the hazard warning flasher acti-
vated and the combination switch set
for either left or right turn, only the re-
spective left or right turn signals will
operate when the SmartKey in the
starter switch is in position 1 or 2 or
the KEYLESS-GO* start/stop button
(page 35) is pressed once or twice.
iIf the hazard warning flasher was acti-
vated automatically, also press hazard
warning flasher switch 1 to switch off
the hazard warning flasher.
Page 132 of 456

131 Controls in detail
Lighting
Interior lighting
The controls are located in the overhead
control panel.
1Left reading lamp on/off
2Rear interior lamps on/off
3Right reading lamp on/off
4Rocker switch for automatic
control on/offAutomatic control
Activating
Press rocker switch 4 to the center
position.
The interior lighting switches on in
darkness when you:
unlock the vehicle
remove the SmartKey from the
starter switch
open a door
open the trunk
The interior lighting switches off automati-
cally following an adjustable time delay.
For more information, see “Interior illumi-
nation delayed switch-off” (
page 161).Deactivating
Press the ñ symbol on rocker
switch 4.
The interior lighting remains switched
off in darkness, even when you:
unlock the vehicle
remove the SmartKey from the
starter switch
open a door
open the trunk
iLeaving an interior light switch in the
ON position for extended periods of
time with the engine turned off could
result in a discharged battery.
iIf the door remains open, the interior
lighting switches off automatically after
approximately 5 minutes.
Page 133 of 456
132 Controls in detailLightingManual control
Front interior lighting
Press the ð symbol on rocker
switch 4.
The front interior lighting switches on.
Press the ñ symbol on rocker
switch 4 again.
The front interior lighting switches off.
The automatic control function is acti-
vated.Rear interior lighting
Press switch2 on theò symbol.
The rear compartment lighting switch-
es on.
Press switch2 on theò symbol
again.
The rear compartment lighting switch-
es off.Reading lamps
The reading lamps are integrated into the
interior rear view mirror.
Press reading lamp switch1or3 to
switch on the desired reading lamp.
Press reading lamp switch1or3
again to switch off the respective read-
ing lamp.
iThe setting selected for the interior
lighting is used for the trunk lighting as
well.
If the trunk remains open, the trunk
lighting switches off automatically after
approximately 10 minutes.
Page 134 of 456

133 Controls in detail
Lighting
Courtesy lighting
For better orientation in the dark, courtesy
lamps will illuminate the interior of your ve-
hicle as follows:
With parking lamps switched on:
the door handles
the driver and passenger footwells
With the SmartKey in the starter switch
position1:
the door handles
the center console
Door entry lamps
For better orientation in the dark, the cor-
responding door entry lamps will switch on
in darkness when you open a door and the
automatic control is activated.
The door entry lamps switch off when the
corresponding door is closed.
Trunk lighting
The trunk lighting switches on if the trunk
is opened.
If you leave the trunk open for an extended
period of time, the trunk lighting will switch
off automatically after approximately
10 minutes.
iIf you turn the SmartKey in the starter
switch to position0 and switch off the
exterior headlamps, the door handle
lamps will remain lit for approximately
5minutes.
iIf you turn the SmartKey in the starter
switch to position0 and switch off the
exterior headlamps, the door entry
lamps will remain lit for approximately
5 minutes.
Page 135 of 456

134 Controls in detailInstrument clusterA full view illustration of the instrument
cluster can be found in the “At a glance”
section of this manual (
page 24).
1Reset buttonJ
The instrument cluster is activated when
you:
open a door
switch on the ignition (
page 34)
press reset buttonJ1
switch on the exterior lamps
You can change the instrument cluster set-
tings in the instrument cluster submenu of
the control system (
page 157).
Instrument cluster illumination
1Knob for adjusting instrument cluster
illumination
Use knob1 to adjust the illumination
brightness for the instrument cluster.
Press knob1.
The knob will pop out.
To brighten illumination
Turn knob1 in the instrument cluster
clockwise.
The instrument cluster illumination will
brighten.
To dim illumination
Turn knob1 in the instrument cluster
counterclockwise.
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 136 of 456

135 Controls in detail
Instrument cluster
Coolant temperature gauge
During severe operating conditions,
e.g. stop-and-go traffic, the coolant tem-
perature may rise close to 248°F (120°C),
i.e. close to the red zone of the coolant
temperature gauge.
The engine should not be operated with
the coolant temperature above 248°F
(120°C), i.e. in the red zone of the coolant
temperature gauge. Doing so may cause
serious engine damage which is not cov-
ered by the Mercedes-Benz Limited
Warranty.
Trip odometer
Make sure you are viewing the trip
odometer display.
If it is not displayed, press the è or
ÿ button on the multifunction
steering wheel repeatedly until the trip
odometer appears (
page 137).
Press and hold reset buttonJ in the
instrument cluster (
page 134) 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 348).