2014 MERCEDES-BENZ CLS set clock

Neutral position.
To unlock
XTurn the mechanical key counter-clockwise
from position
as far as it willgoto
position.
The trunk is unlocked.
XTurn the mechanical key back to position

and remove it.
XInsert the mechanical key into the
SmartKey.
Trunk emergencyrelease
You can open thetrunk lid from inside the
vehicle with theemergency releasebutton.
XPressemergency releasebuttonbriefly.
The trunk lid unlocksand opens.
The trunk lid can be unlocked and opened
with thetrunk lid emergency releasewhen
thevehicle is stationaryorwhile driving.
The trunk lid emergency releasedoes not
open thetrunk lid if thebattery is
disconnectedordischarged.
Trunklid emergency release light:
Remergency release buttonflashes for
30 minutes after the trunk lid is opened
Remergency release buttonflashes for
60 minutes after the trunk lid is closed
Side windows
Important safety notes
GWARNING
While opening the side windows,body parts
could become trapped between the side
window and the door frameasthe side
window moves. There isarisk of injury.
Make sure that nobody touches the side
window duringthe opening procedure. If
somebody becomes trapped, release the
switchorpull the switchtoclosethe side
window again.
GWARNING
While opening the side windows,body parts
in the closing area could become trapped.
There isarisk of injury.
Make sure that no body partsare in close
proximityduringthe closing procedure. If
somebody becomes trapped, release the
switchorpress the switchtoopen the side
window again.
GWARNING
If children operatethe side windows they
could become trapped, particularly if theyare
left unsupervised. There isarisk of injury.
Activate the override feature for the rear side
windows.When leaving the vehicle, always
take the SmartKey with you and lock the
vehicle. Never leave children unsupervised in
the vehicle.
Side window reversing feature
The side windows are equipped with an
automatic reversing feature. Ifasolid object
88Side windows
Opening and closing

could burn yourselfonthese components.
There isarisk of injury.
Allow these components to cool down before
changingabulb.
There are bulbs other than Xenon and LED
bulbs that you cannot replace. Replace only
the bulbs listed (Ypage 125). Have the bulbs
that you cannot replace yourself changed at
aqualified specialist workshop.
If you require assistance changing bulbs,
consultaqualified specialist workshop.
Do not touch the glass tube of new bulbs with
your bare hands. Even minor contamination
can burn into the glass surface and reduce
the service life of the bulbs. Always usealint-
free cloth or only touch the base of the bulb
when installing.
Only use bulbs of the correct type.
If the new bulb still does not light up, consult
aqualified specialist workshop.
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 settingchecked regularly.
Overview: changing bulbs/bulb types
You can change the following bulbs. The bulb
type can be found in the legend.
Tail lamp
Backup lamp:W16W
Changing the rear bulbs
Backup light
Lamp unit
XSwitch off the lights.
XOpen the trunk.
XReach up into the side paneling and pull
downwards until the lamp cluster is easily
accessible.
XPress the detent of connectorand pull
out connector.
XUseasuitable tool to loosen and remove
four nuts.
XRemove the entire lamp cluster.
XTurn bulb holder$counter-clockwise and
pull it out.
XPull out bulb.
XInsert the new bulb into bulb holder$.
XInsert bulb holder$into the lamp and turn
it clockwise.
XRe-insert the lamp cluster.
XTighten four nuts.
XPush in connectoruntil it engages.
XInsert the side paneling.
Windshield wipers
Switching the windshield wiperson/
off
!Do not operatethe windshield wipers
when the windshield is dry, as this could
damage the wiper blades. Moreover, dust
Windshield wipers125
Lights and windshield wipers
Z

Setting the temperature
Dual-zone automatic climate control
Differenttemperatures can be set for the
driver's and front-passenger sides.
XTurn the SmartKey to position2in the
ignition lock (Ypage 147).
XTo increase/reduce:turn temperature
controlor%clockwise or counter-
clockwise (Ypage 131).
Only change the temperature settingin
small increments. Start at 72‡(22 †).
3-zone automatic climate control
Automatic climate control zones
You can select different temperature settings
for the driver's and front-passenger sides as
well as for the rear compartment.
XTurn the SmartKey to position2in the
ignition lock (Ypage 147).
XTo increase/reduce the temperature in
the front compartment:turn temperature
controlor%clockwise or counter-
clockwise (Ypage 134).
Only change the temperature settingin
small increments. Start at 72‡(22 †).
XTo increase/reduce the temperature in
the rear compartment using the front
control panel:press thebutton.
The indicator lamp in thebutton goes
out.
XTurn temperature controlclockwise or
counter-clockwise (Ypage 134).
Only change the temperature settingin
small increments. Start at 72‡(22 †).
The temperature settingfor the driver's
side is adopted for the rear compartment
and the front-passenger side.
XTo increase/reduce the temperature in
the rear compartment using the rear
control panel:press theor
button on the rear control panel.
Only change the temperature settingin
small increments. Start at 72‡(22 †).
Setting the air distribution
Air distribution settings
Directsair through the center and side
air vents
Directsair through the footwell air
vents
Directsair through the center, side and
footwell vents

Directsair through the defroster vents
Directsthe airflow through the
defroster, center and side air vents
(Canada only)
Directsair through the defroster and
footwell vents
Directsthe airflow through the
defroster, center and side air vents, as
well as the footwell air vents(Canada
only)
iRegardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air ventscan only be
closed when the controls on the side air
ventsare turned downwards.
Setting the air distribution
XTurn the SmartKey to position2in the
ignition lock (Ypage 147).
XPress thebutton repeatedly until the
desired symbol appears in the display.
138Operating the climate control systems
Climate control

Setting the airflow
XTurn the SmartKey to position2in the
ignition lock (Ypage 147).
XTo increase:press thebutton.
XTo reduce:press thebutton.
iYou can use 3-zone automatic climate
control to set the airflow in the rear
compartmentseparately.
If the batteryisnot sufficiently charged,
blower output may be reduced. As soon as
the batteryissufficiently charged, full blower
output will be available.
Switching the ZONE function on/off
XTo activate:press thebutton.
The indicator lamp above thebutton
lights up.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side.
3-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side
and the rear compartment.
XTo deactivate:press thebutton.
The indicator lamp above thebutton
goes out.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side.
3-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side and
the rear compartment.
Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
Switchoff the "Windshield defrosting"
function as soon as the windshield is clear
again.
XTurn the SmartKey to position2in the
ignition lock (Ypage 147).
XTo activate:press thebutton.
The indicator lamp in thebutton lights
up.
The climate control system switches to the
following functions:
Rhigh airflow
Rhigh temperature
Rair distribution to the windshield and
frontside windows
Rair-recirculation mode off
If the battery is not sufficiently charged,
blower output may be reduced. Oncethe
battery is sufficiently charged again, full
blower output will be available again.
XTo deactivate:press thebutton.
The indicator lamp in thebutton goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
XPress the\rbutton.
The indicator lamp in thebutton goes
out. Airflow and air distribution are set to
automatic mode.
or
XDual-zoneautomatic climate control: turn
temperature controlsor%clockwise
or counter-clockwise (Ypage 131).
3-zoneautomatic climate control: turn
temperature controlsor%clockwise
or counter-clockwise (Ypage 134).
or
XPress theorbutton.
MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
Operating theclimate control systems139
Climate control

dehumidification" function.Otherwise,
temperature-sensitive items stored in the
glove boxcould be damaged.
Air vent thumbwheel
Air vent
When automatic climate control is activated,
the glove box can be ventilated, for instance
to cool its contents.The level of airflow
depends on the airflow and air distribution
settings.
XTo open/close:turn thumbwheel
clockwise or counter-clockwise.
Setting the rear-compartment air
vents
Setting the center vents in the rear
compartment
Rear-compartment air vent thumbwheel
Rear-compartment air vent,right
$Rear control panel, only for Canada with
3-zone automatic climate control
!Rear-compartment air vent,left
XTo open/close:turn thumbwheelup or
down.
Setting the air vents143
Climat ec ontrol
Z

switch-off exterior lighting are on, the
following light up:
RParking lamps
RLow-beam headlamps
RDaytime running lamps
RSide marker lamps
RSurround lighting in the exterior mirrors
Activating/deactivating the interior
lighting delayed switch-off
If you activate theInterior Lighting
Delayfunction,the interior lighting remains
on for 20seconds after you remove the
SmartKey from the ignition lock.
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPress theorbutton to select the
Lightssubmenu.
XPressto confirm.
XPressorto select theLight.
Delayfunction.
When theInterior Lighting Delay
function is activated, the vehicle interior is
displayed in red in the multifunction
display.
XPress thebutton to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPressorto select theVehicle
submenu.
XPressto confirm.
XPressorto select theAuto.
Door Locksfunction.
When theAutomaticDoorLockfunction
is activated, the vehicle doors are displayed
in red in the multifunction display.
XPress thebutton to save the setting.
If you activate theAutomatic Door Lock
function,the vehicle is centrally locked above
aspeed of around9mph (15 km/h).
For further information on the automatic
locking feature, see (Ypage 83).
Activating/deactivating the acoustic
locking verification signal
If you switch on theAcousticLockfunction,
an acoustic signal sounds when you lock the
vehicle.
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPressorto select theVehicle
submenu.
XPressto confirm.
XPress theorbutton to select the
Acoustic Lockfunction.
If theAcousticLockfunction is activated,
thesymbol in the multifunction
displaylights up red.
XPress thebutton to save the setting.
Activating/deactivating the radar sensor
system
XPress the\norbutton on the
steering wheel to select theSett.menu.
XPressorto select theVehicle
submenu.
XPressto confirm.
XPress theorbutton to select
Radar Sensor (See Oper. Manual):.
You will see the selected setting:Enabled
orDisabled.
XPress thebutton to save the setting.
The following systems are switched off when
the radar sensor system is deactivated:
RDISTRONIC PLUS (Ypage 177)
RBAS PLUS (Ypage 67)
RPRE-SAFE®Brake (Ypage 72)
RBlind Spot Assist (Ypage 207)
RActive Blind Spot Assist (Ypage 211)
232Menus and submenus
On-board computer and displays

The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
Comply with safety precautions and take
protective measures when handling
batteries.
Risk of explosion.
Fire, open flames and smokingare
prohibited when handling the
battery. Avoid creatingsparks.
Battery acid is caustic. Avoid
contact with skin, eyes or clothing.
Wear suitable protective clothing,
especially gloves, apron and
faceguard.
Rinse any acid spills immediately
with clear water. Contact a
physician if necessary.
Wear eye protection.
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz
recommends that you only use batteries
which have been tested and approved for
your vehicle by Mercedes-Benz.These
batteries provide increased impact
protection to prevent vehicle occupants from
suffering acid burns should the battery be
damaged in the event of an accident.
In order for the battery to achieve the
maximum possible service life, it must always
be sufficiently charged.
The vehicle battery, like other batteries, can
discharge over time if you do not use the
vehicle. In this case, have the battery
disconnected ataqualified specialist
workshop. You can also charge the battery
withacharger recommended by Mercedes-
Benz.Contactaqualified specialist workshop
for further information.
Have the battery condition of charge checked
more frequently if you use the vehicle mainly
for short trips or if you leave it standingidle
foralengthy period. Consultaqualified
specialist workshop if you wish to leave your
vehicle parked foralong period of time.
iRemove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
iIf the power supply has been interrupted,
e.g. if you reconnect the battery, you will
have to:
Rset the clock.Information on setting the
clock can be found in the separate
operating instructions.
On vehicles with COMAND and a
navigation system, the clock is set
automatically.
Rreset the function for folding the exterior
mirrors in/out automatically, by folding
the mirrors out once (Ypage 110).
Charging the battery
GWARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean overabattery.
GWARNING
Battery acid is caustic. There isarisk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
324Battery (vehicle)
Breakdown assistance

XTake coveroff the opening.
XScrew in and tighten the towing eye
clockwise to the stop.
Removing the towing eye
XUnscrew and remove the towing eye.
XPosition the top of coverin the bumper
and press it in at the bottom until it
engages.
XAttach coverto the bumper and press
until it engages.
XPlace the towing eye in the vehicle tool kit.
Towing the vehicle with the rear axle
raised
!The ignition must be switched off if you
are towing the vehicle with the rear axle
raised. Intervention by ESP®could
otherwise damage the brake system.
Only possible for vehicles without
4MATIC.
XSwitchonthe hazard warning lamps
(Ypage 120).
XTurn the SmartKey to position0in the
ignition lock and remove the SmartKey
from the ignition lock.
XWhen leaving the vehicle, take the
SmartKey or the KEYLESS-GO key with you.
When towing your vehicle with the rear axle
raised, it is importantthat you observe the
safety instructions (Ypage 328).
Towingavehicle with both axles on
theground
It is importantthat you observe the safety
instructions when towing away your vehicle
(Ypage 328).
The automatic transmission automatically
shifts to positionPwhen you open the driver's
or front-passenger door or when you remove
the SmartKey from the ignition lock. In order
to ensure that the automatic transmission
stays in positionNwhen towing the vehicle,
you must observe the following points:
XMake sure that the vehicle is stationary and
the SmartKey in the ignition lock is in
position0.
XTurn the SmartKey to position2in the
ignition lock.
On vehicles with KEYLESS-GO, use the
SmartKey instead of the Start/Stop button
(Ypage 147).
XDepress and hold the brake pedal.
XShift the automatic transmission to
positionN.
XRelease the brake pedal.
XRelease the parking brake.
XSwitch on the hazard warning lamps
(Ypage 120).
XLeave the SmartKey in position2in the
ignition lock.
iWhen towing with the hazard warning
lamps switched on, use the combination
switch as usualtosignalachange of
direction. In this case, only the indicator
lamps for the direction of travel flash. After
resetting the combination switch, the
hazard warning lamp starts flashing again.
Transporting the vehicle
!Only lash the vehicle down by the wheels
or wheel rims, not by parts of the vehicle
such as axle or steering components.
Otherwise, the vehicle could be damaged.
The towing eye can be used to pull the vehicle
ontoatrailer or transporter for transporting
purposes.
330Towing and tow-starting
Breakdown assistance