
AIRSCARF
Activating/deactivating G
WARNING
Very hot air can flow out of the AIRSCARF
vents in the head restraints when AIRSCARF
is in operation .This can cause burns on
unprotected skin near the AIRSCARF vents.
Lower the heating output in good time, when
necessary. The AIRSCARF function warms the head and
neck area of vehicle occupants with warm air.
The warm air flows out of the holes in the head
restraints.
The three red indicator lamps in the button
indicate the heating level you have selected.
X
Make sure that the SmartKey is in
position 2in the ignition lock.
X To switch on: press button0003.
Three red indicator lamps in the button light
up. The blower starts up after a preheating
phase of seven seconds.
X Press button 0003repeatedly until the
desired heating level is set.
X To switch off: press button0003repeatedly
until all the indicator lamps go out.
i The blower continues running for seven
seconds to cool down the heating
elements.
i If the battery voltage is too low, AIRSCARF
may switch off. Problems with AIRSCARF AIRSCARF has switched off prematurely or
will not switch on. The vehicle's electrical
system voltage is too low because too many
electrical consumers are switched on.
X
Switch off electrical consumers that you do
not need, such as the rear window
defroster or interior lighting.
X Switch on AIRSCARF again. Steering wheel
Important safety notes
G
WARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving
could cause the driver to lose control of the
vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Achild's unsupervised access to a
vehicle could result in an accident and/or
serious personal injury. Adjusting the steering wheel
manually
0003
Release lever
0004 To adjust the steering wheel height
0024 To adjust the steering wheel position
(fore-and-aft adjustment) 98
Steering wheelSeats, steering wheel and mirrors

Front fog lamps
In conditions where visibility is poor due to
fog, snow or rain, the fog lamps improve
visibility as well as making it easie
rfor other
road users to see you. They can be operated
together with the parking lamps or together
with the parking lamps and low-beam
headlamps.
X To switch on the front fog lamps: turn
the SmartKey in the ignition lock to position
2 or start the engine.
X Turn the light switch to 000Aor0005.
X Press the 000Bbutton.
The green 000Bindicator lamp in the
instrument cluster lights up.
X To switch off the front fog lamps: press
the 000B button.
The green 000Bindicator lamp in the
instrument cluster goes out.
Only vehicles with front fog lamps have the
fog lamps function.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of
heavy fog. Please take note of the country-
specific regulations for the use of rear fog
lamps.
X To switch on the rear fog lamp: turn the
SmartKey in the ignition lock to position 2
or start the engine.
X Turn the light switch to 000Aor0005.
X Press the 000Dbutton.
The yellow 000Dindicator lamp in the
instrument cluster lights up.
X To switch off the rear fog lamp: press the
000D button.
The yellow 000Dindicator lamp in the
instrument cluster goes out.
Parking lamps
! If the battery has been excessively
discharged, the parking lamps or standing
lamps are automatically switched off to
enable the next engine start.A lways parkyour vehicle safely and sufficiently lit
according to legal standards. Avoid the
continuous use of the
0013parking lamps
for several hours. If possible, switch on the
0010 right or the 000Eleft standing lamp.
X To switch on: turn light switch to 0013.
Standing lamps
Switching on the standin glamps ensures the
corresponding side of the vehicle is
illuminated.
X To switch on the standing lamps: the
SmartKey is not in the ignition lock or it is
in position 0.
X Turn the light switch to 000E(left-hand side
of the vehicle) or 0010(right-hand side of
the vehicle). Combination switch
Turn signals 0003
High-beam headlamps
0004 Turn signal, right
0024 High-beam flasher
0023 Turn signal, left
X To indicate briefly: press the combination
switch briefly to the pressure poin tinthe
direction of arrow 0004or0023.
The corresponding turn signal flashes three
times.
X To indicate: press the combination switch
beyond the pressure point in the direction
of arrow 0004or0023. 108
Exterior lightingLights and windshield wipers

0024
0012 Switches the right-hand reading
lamp on/off
0023 0003 Switches the interio rlighting on/off Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
unless the SmartKey is in position 2in the
ignition lock.
The color and brightness of the ambient
lighting may be set using the on-board
computer (Y page 204).
Automatic interior lighting control X
To activate/deactivate: press the0019
button.
When the automatic interior lighting
control is activated, the button is flush with
the overhead control panel.
The interior lighting automatically switches
on if you:
R unloc kthe vehicle
R open a door
R remove the SmartKey from the ignition lock
The interior light is activated for a short while
when the SmartKey is removed from the
ignition lock. You can activate this delayed
switch-off using the on-board computer
(Y page 205).
Manual interior lighting control X
To switch the interior lighting on/off:
press the 0003button.
X To switch the reading lamps on/off:
press the 0012button. Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or
X Lock and then unlock the vehicle using the
SmartKey. Replacing bulbs
Important safety notes
Xenon bulbs G
DANGER
Xenon bulbs carry a high voltage. You could
get an electric shock and be seriously or even
fatally injured if you touch the electric
contacts on Xenon bulbs. Therefore, never
remove the cover from Xenon bulbs.
Do not change the Xenon bulbs yourself, but
have them replaced at a qualified workshop.
If your vehicle is equipped with Xenon bulbs,
you can recognize this by the following: the
cone of light from the Xenon bulbs moves
from the top to the bottom and back again
when you start the engine. For this to be
observed, the lights must be switched on
before starting the engine.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly.
Other bulbs G
WARNING
Bulbs and lamps can become very hot. For
this reason, allow them to cool down before
changing them. Otherwise, you could burn
yourself when you touch them. 112
Replacing bulbsLights and windshield wipers

the rea
rwindow defroster switches off
automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switc hoff.
X Turn the SmartKey to position 2in the
ignition lock.
X Press the 000Ebutton.
The indicator lamp in the 000Ebutton lights
up or goes out.
Problems with the rear window
defroster If the indicator lamp in the
000Erear window
defroster button flashes, the on-board
voltage is too low or the roof is open. The rear
window defroster has deactivated
prematurely or cannot be activated.
X Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window defroster is activated
again automatically.
or
X Close the roof.
The rear window defroster can be activated
again. Activating/deactivating air-
recirculation mode
G
WARNING
At low outside temperatures, only switch over
to air-recirculation mode for brie fperiods.
Otherwise, the windows could fog up, thus
impairing visibility and endangering yourself
and others. This may preven tyou from
observing the traffic conditions and thereby
cause an accident. X
Turn the SmartKey to position 2in the
ignition lock.
X To activate: press the0014button.
The indicator lamp in the 0014button lights
up.
i Air-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures. When air-
recirculation mode is activated
automatically, the indicator lamp in the
0014 button is not lit.
Outside air is added after about
30 minutes.
X To deactivate: press the0014button.
The indicator lamp in the 0014button goes
out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡ (5 †) Activating/deactivating the residual
heat function
The residual heat function is only available on
vehicles for Canada.
It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
Depending on the equipment level, the
control panel has either the 0002button or
the 0004 button. Operating the climate control systems
129Climate control Z

X
Turn the SmartKey to position 0in the
ignition lock or remove it.
X To switch on: press the0002or0004
button.
The indicator lamp in the 0002or0004
button lights up.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X To deactivate: press the0002or0004
button.
The indicator lamp in the 0002or0004
button goes out.
Residual heat is deactivated automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is activated Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could cause burns or frostbite to
bare skin in the immediate vicinity of the
vents. Keep bare skin away from these air
vents. If necessary, direct the airflow away to
a different area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air inlet grille on the hood and in
the engine compartment on the front-
passenger side free of blockages, such as
ice, snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior. i
You can move the adjusters for the air
vents vertically or horizontally to set the
direction of the airflow.
i For optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position. Setting the center air vents
X
To open the center air vent: turn the
adjuster in one of center air vents 0003
counter-clockwise.
X To close the center air vent: turn the
adjuster in one of center air vents 0003
clockwise until it engages. Setting the side air vents
0003
Side window defroster vent
0004 Side air vent 130
Setting the air ventsClimate control

Automatic engine switch-off
Method of operation
The ECO start/stop function is operational
and the
000Esymbol is displayed in the
multifunction display, if:
R the indicator lamp in th eECO butto nis lit
green.
R the outside temperature is within the
comfort range.
R the engine is at normal operating
temperature.
R the set temperature for the vehicle interior
has been reached.
R the battery is sufficiently charged.
R the system detects that the windshield is
not fogged up when the air-conditioning
system is switched on
R the hood is closed.
R the driver's door is closed and the driver's
seat belt is fastened.
If conditions for automatic engine switch-off
have not been fulfilled, the 000Esymbol will
not be shown.
i All vehicles (apart from AMG
vehicles): automatic engine switch-off can
take place a maximum of four times
consecutively (initial stop then repeated
three times). The automatic engine switch-
off is then available againa fter the000E
symbol appears in the multifunction
display.
i AMG vehicles: times which the engine
can be automatically switched off.
i You can still activate the HOLD function
whe nthe vehicle is stationary, even if the
engine has been switched off
automatically. It is then not necessary to
continue applying the brakes during the
automatic stop phase. When you depress
the accelerator pedal, the engine starts
automatically and the braking effect of the
HOLD function is deactivated. Depress the accelerator pedal carefully, as the engine
must be started first.
Vehicles with manual transmission The ECO start/stop function switches off the
engine automatically at low speeds.
X
Brake the vehicle until it comes to a
standstill.
X Engage neutral N(Ypage 144) (follow
gearshift instruction 0003to engage neutral
N, if necessary).
X Release the clutch pedal.
The engine is switched off automatically.
Vehicles with automatic transmission
If the vehicle is braked to a standstill in Dor
N, the ECO start/stop function switches off
the engine automatically.
i If you shift the transmission from Rto D,
the ECO start/stop function is available
again once the 000Esymbol reappears in
the multifunction display.
Automatic engine start Method of operation
The engine starts automatically if:
R
you switch off the ECO start/stop function
by pressing the ECO button.
R you engage reverse gear R.
R you switch to drive program Sor M(AMG
vehicles).
R you unfasten your seat belt or open the
driver's door. Driving
141Driving and parking Z

R
the vehicle starts to roll.
R the brake syste mrequires this.
R the temperature in the vehicle interior
deviates from the set range.
R the system detects moisture on the
windshield when the air-conditioning
system is switched on.
R the charge level of the battery is too low.
Vehicles with manual transmission
! Only engage gear when the clutch pedal
is depressed.
The engine starts automatically if:
R you depress the clutch pedal.
R you depress the accelerator pedal.
Vehicles with automatic transmission
The engine starts automatically if:
R in transmission position Dor Nthe brake
pedal is released and the HOLD function is
not active.
R you depress the accelerator pedal.
R you move the transmission out of position
P.
i Shifting the transmission to position P
does not start the engine. 142
DrivingDriving and parking

Problems with the engine
Problem Possible causes/consequences and
0001 Solutions
The engine does not
start. X
Try to start the engine again. The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Turn the SmartKey back to position 0in the ignition lock before
attempting to start the engine again.
or
X Press the Start/Stop button repeatedly until all indicator lamps
in the instrument cluster go out.
X Try to start the engine again (Y page 137). Avoid excessively
long and frequent attempts to start the engine, as this will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak
or discharged.
X
Jump-start the vehicle (Y page 299).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X
Allow the starter motor to cool down for approximately two
minutes.
X Try to start the engine again.
If the engine still does not start:
X Consult a qualified specialist workshop. The engine is not
running smoothly and
is misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it.
X Have the cause rectified immediately at a qualified specialist
workshop. Driving
143Driving and parking Z