2014 MERCEDES-BENZ CLA clock

setting in small increments. Start at 72 ‡
(22 †).
Setting the air distribution
Automatic climate control
Air distribution settings
Directs air through the defroster vents
Directs air through the center and side
air vents
Directs air through the footwell air
vents
iYou can also activate several air
distribution settings simultaneously. To do
this, press multiple air distribution buttons.
The air is then directed through various
vents.
Setting the air distribution
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XPress one or more of the,,
buttons.
The corresponding indicator lamp lights up
briefly.
Dual-zone automatic climate control
Air distribution settings
Directs air through the defroster vents
Directs air through the center and side
air vents
Directs air through the footwell air
vents
Directs air through the defroster,
center and side air vents
Directs air through the defroster and
footwell vents
iRegardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
closed if the adjusters are turned clockwise
until they engage.
Setting the air distribution
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XPress theorbutton repeatedly
until the desired symbol appears in the
display.
Setting the airflow
Automatic climate control
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XTo increase/reduce:turn control
clockwise or counter-clockwise
(Ypage 121).
Dual-zone automatic climate control
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XTo increase/reduce:press theor
button.
Switching the ZONE function on/off
This function is only available with dual-zone
automatic climate control.
XTo activate:press thebutton.
The indicator lamp in thebutton lights
up.
The temperature setting for the driver's
side is not adopted for the front-passenger
side.
XTo deactivate:press thebutton.
The indicator lamp in thebutton goes
out.
The temperature setting for the driver's
side is adopted for the front-passenger
side.
128Operating the climate control systems
Climate control

Defrosting the windshield
You can use this function to defrost the
windshield or to defrost theinside of the
windshield and the side windows.
iYou should only select the "Windshield
defrosting" functionuntil the windshield is
clear again.
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XTo activate:press the button.
The indicator lamp in the button lights
up.
The climate control system switches to the
following functions:
Rhigh airflow
Rhigh temperature
Rairdistribution to the windshield and
front side windows
Rair-recirculation mode off
iThe "Windshield defrosting" function
automatically sets the blower output to the
optimum defrosting effect. As a result, the
airflow may increase or decrease
automatically after the button is pressed.
iYou can adjust the blower output
manually while the "Windshield defrosting"
function is in operation:
RAutomatic climate control: turn airflow
controlclockwise or counter-
clockwise (Ypage 121).
RDual-zone automatic climate control:
press theorbutton.
XTo deactivate:press the button.
The indicator lamp in the button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or
XDual-zone automatic climate control: press
thebutton.
The indicator lamp in the button goes
out. Airflow and air distribution are set to
automatic mode.
or
XAutomatic climate control: turn
temperature controlclockwise or
counter-clockwise (Ypage 121).
Dual-zone automatic climate control: turn
temperature controlorclockwise or
counter-clockwise (Ypage 123).
MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
XTo activate:press the
button.
The indicator lamp in the button lights up.
XTo deactivate:press the
button
again.
The indicator lamp goes out. The previously
selected settings are restored.
When you activate MAX COOL, climate
control switches to the following functions:
Rmaximum cooling
Rmaximum airflow
Rair-recirculation mode on
Defrosting the windows
Windows fogged up on theinside
Automatic climate control
XActivate the"Cooling with air
dehumidification" function.
XIf the windows continue to fog up, activate
the "Windshield defrosting" function.
iYou should only select this setting until
the windshield is clear again.
Operating the climate control systems129
Climate control

XTurn the SmartKey to position0in the
ignition lock or remove it (Ypage 137).
XTo activate:press thebutton.
The indicator lamp in thebutton lights
up.
XTo deactivate:press thebutton.
The indicator lamp in thebutton goes
out.
iResidual heat is deactivated
automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Setting the air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air
outlets. If necessary, redirect the airflow to
another 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:
Rkeep the air inlet between the windshield
and the hood free of blockages, such as ice,
snow or leaves.
Rnever cover the air vents or air intake grilles
in the vehicle interior.
iYou can move the adjusters for the air
vents vertically or horizontally to set the
direction of the airflow.
iFor optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position.
Setting the center air vents
XTo open the center air vent:turn the
adjuster in one of center air vents
counter-clockwise.
XTo close the center air vent:turn the
adjuster in one of center air vents
clockwise until it engages.
Setting the side air vents
Side window defroster vent
Side air vent
XTo openaside air vent:turn the adjuster
in side air ventcounter-clockwise.
XTo closeaside air vent:turn the adjuster
in side air ventclockwise until it
engages.
132Setting the air vents
Climate control

!Overfilling the fuel tank could damage the
fuel system.
!Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
!Use a filter when refueling from a fuel can.
Otherwise, the fuel lines and/or injection
system could be blocked by particles from
the fuel can.
Do not get into the vehicle againduring the
refueling process. Otherwise, electrostatic
charge could build up again.
If you overfill the fuel tank, fuel could spray
out when the fuel pump nozzle is removed.
Forfurther information on fuel and fuel quality
(Ypage 346).
Refueling
Opening/closing the fuel filler flap
To open the fuel filler flap
Tire pressure table
"To insert the fuel filler cap
!Fuel type to be used
The fuel filler flap is unlocked or locked
automatically when you open or close the
vehicle with the SmartKey.
The position of the fuel filler cap is displayed

in the instrumentcluster.The arrow on
the filling pump indicates the side of the
vehicle.
Opening
XSwitch the engine off.
XRemove the SmartKey from the ignition
lock.
XPress the fuel filler flap in the direction of
arrow.
The fuel filler flap swings up.
XTurn the fuel filler flap counter-clockwise
and remove it.
XInsert the fuel filler cap into holder on the
inside of fuel filler flap".
XCompletely insert the filler neck of the fuel
pump nozzle into the tank, hook in place
and refuel.
XOnly fill the tank until the pump nozzle
switches off.
iDo not add any more fuel after the pump
stops filling for the first time. Otherwise,
fuel may leak out.
Closing
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap.
iClose the fuel filler flap before locking the
vehicle.
iIf you are driving with the fuel filler cap
open, thereserve fuel warning lamp
flashes.Amessage appears in the
multifunction display (Ypage 228).
In addition, theCheck Engine warning
lamp may light up (Ypage 248).
For further information on warning and
indicator lamps in the instrument cluster,
see (Ypage 248).
152Refueling
Driving and parking

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
iRead the information on qualified
specialist workshops: (Ypage 25).
Important safety notes
GWARNING
If you operate information systems and
communication equipment integrated in the
vehicle while driving, you will be distracted
from traffic conditions. You could also lose
control of the vehicle. There is a risk of an
accident.
Only operate the equipment when the traffic
situationpermits.Ifyou are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the
equipment when the vehicle is stationary.
GWARNING
If the instrument cluster has failed or
malfunctioned, you may not recognize
function restrictions in systems relevant to
safety. The operating safety of your vehicle
may be impaired. There is a risk of an
accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop
immediately.
You must observe the legal requirements for
the country in which you are currently driving
when operating the on-board computer.
The on-board computer only shows messages
or warnings from certain systems in the
multifunction display.You should therefore
make sure your vehicle is operating safely at
all times. Otherwise, a vehicle that is not
operating safely may cause an accident.
For an overview, see the instrument panel
illustration (Ypage 29).
Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the
displays and the controls in the vehicle
interior can be adjusted using the brightness
control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Ypage 29).
XTurn the brightness control knob clockwise
or counter-clockwise.
If the light switch is set to,or
, the brightness is dependent upon
the brightness of the ambient light.
iThe light sensor in the instrument cluster
automatically controls the brightness of
the multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated.
Coolant temperature display
GWARNING
Opening the hood when the engine is
overheated or when there is a fire in the
engine compartment could expose you to hot
gases or other service products. There is a
risk of injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
!Adisplay message is shown if the coolant
temperature is too high.
194Displays and operation
On-board computer and displays

iDepending on your vehicle'sequipment,
when the surround lighting and delayed
switch-offexterior lighting are on, the
following light up:
RParking lamps
RFront fog lamps
RLow-beam headlamps
RDaytime running lamps
RSide marker lamps
RSurround lighting in the exterior mirrors
Activating/deactivating the interior
lighting delayedswitch-off
If you activate theInterior Lighting
Delayfunction, the interior lighting remains
on for 20 seconds after you remove the key
from the ignition lock.
XPress theorbutton on the
steering wheel to select theSettings
menu.
XPress theorbuttonto select the
Lightssubmenu.
XPressto confirm.
XPress theorbutton to select the
Interior Lighting Delayfunction.
If theInteriorLightingDelayfunction
has been switched on, the vehicle interior
is displayed in orange in the multifunction
display.
XPress thebutton to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
XPress theorbutton on the
steering wheel to select theSettings
menu.
XPress theorbutton to select the
Vehiclesubmenu.
XPressto confirm.
XPress theorbutton to select the
Automatic Door Lockfunction.
When theAutomaticDoorLockfunction
is activated, the vehicle doors are displayed
in orange in the multifunction display.
XPress thebutton to save the setting.
If you activate theAutomatic Door Lock
function, the vehicle is centrally locked above
a speed of around 9 mph (15 km/h).
For further information on the automatic
locking feature, see (Ypage 79).
Activating/deactivating the acoustic
locking verification signal
If you switch on theAcousticLockfunction,
an acoustic signal sounds when you lock the
vehicle.
XPress theorbutton on the
steering wheel to select theSettings
menu.
XPress theorbutton to select the
Vehiclesubmenu.
XPressto confirm.
XPress theorbutton to select the
Acoustic Lockfunction.
If theAcousticLockfunction is activated,
the\nsymbol in the multifunction
display lights up orange.
XPress thebutton to save the setting.
Activating/deactivating the radar sensor
system
XPress theorbutton on the
steering wheel to select theSettmenu.
XPress theorbutton to select the
Vehiclesubmenu.
XPressto confirm.
XPress theorbutton to select
Radar Sensor (See Oper. Manual).
You will see the selected setting:Onor
Off.
XPress thebutton to save the setting.
208Menus and submenus
On-board computer and displays

Checking the oil level using the oil
dipstick
ExampleXPull oil dipstickout of the dipstick guide
tube.
XWipe off oil dipstick.
XSlowly slide oil dipstickinto the guide
tube to the stop, and take it out again.
If the level is between MIN mark"and
MAX mark, the oil level is correct.
XIf the oil level has dropped to MIN mark
"or below, add 1.1 US qt (1.0 liter) of
engine oil.
Adding engine oil
GWARNING
If engine oil comes into contact with hot
components in the engine compartment, it
may ignite. There is a risk of fire and injury.
Make sure that engine oil is notspilled next
to the filler neck. Let the engine cool down
and thoroughly clean the engine oil off the
components before starting the engine.
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
!Only use engine oils and oil filters that
have been approved for vehicles with a
service system. You can obtain a list of the
engine oils and oil filters tested and
approved in accordance with the
Mercedes-Benz Specifications for Service
Products at any Mercedes-Benz Service
center.
Damage to the engine or exhaust system is
caused by the following:
Rusing engine oils and oil filters that have
not been specifically approved for the
service system
Rreplacing engine oil and oil filters after
the interval for replacementspecified by
the service system has been exceeded
Rusing engine oil additives.
!Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off.
Example: engine oil capXTurn capcounter-clockwise and remove
it.
XAdd engine oil.
If the oil level is at or below the MIN mark
on the oil dipstick, add 1.1 US qt(1.0 liter)
of engine oil.
XReplace capon the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.
XCheck the oil level againwith the oil
dipstick (Ypage 282).
Further information on engine oil
(Ypage 348).
282Engine compartment
Maintenance and care

Checking and adding other service
products
Checking coolantlevel
GWARNING
The engine cooling system is pressurized,
particularly when the engine is warm. When
opening the cap, you could be scalded by hot
coolant spraying out.There is a risk of injury.
Let the engine cool down before opening the
cap. Wear eye and hand protection when
opening the cap. Open the cap slowly half a
turn to allow pressure to escape.
!The coolant may only be checked and
corrected when the engine is cool (coolant
temperature below 104 ‡ (40 †).
Checking the coolant when the coolant
temperature is above 104 ‡ (40 †) may
result in damage to the engine or to the
engine cooling system.
Example
XPark the vehicle on a level surface.
Only check the coolant level when the
vehicle is on a level surface and the engine
has cooled down.
XTurn the SmartKey to position2in the
ignition lock (Ypage 137).
XCheck the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
104 ‡ (40 †).
XTurn the SmartKey to position
0(Ypage 137) in the ignition lock.
XSlowly turn caphalf a turn counter-
clockwise to allow excess pressure to
escape.
XTurn capfurther counter-clockwise and
remove it.
If the coolant is at the level of marker bar
"in the filler neck when cold, there is
enough coolant in coolant expansion
tank.
XIf necessary, add coolant that has been
tested and approved by Mercedes-Benz.
XReplace capand turn it clockwise as far
as it will go.
For further information on coolant, see
(Ypage 349).
Adding washer fluid to the windshield
washer system/headlampcleaning
system
GWARNING
Windshield washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust systemit
could ignite. There is a riskoffire and injury.
Make sure that no windshield washer
concentrate is spilled next to the filler neck.
Example
XTo open:pull capupwards by the tab.
XAdd the premixed washer fluid.
XTo close:press caponto the filler neck
until it engages.
Engine compartment283
Maintenance and care
Z