climate control MERCEDES-BENZ CLA-CLASS 2013 Owner's Manual
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Page 137 of 352
in the door. The side window stops. To con-
tinue closing the side window, pull on the
W switch.XConvenience closing feature: press and
hold the e button until the side win-
dows and the panorama sliding sunroof are
closed.
The indicator lamp in the e button lights
up. Air-recirculation mode is activated.
If parts of the body are in the closing area
during convenience closing, proceed as fol-
lows:
XTo open/close the side window, press the
W button.
The side window stops.XTo then open the side window, press the
W button again.
or
XPress and hold the e button again for
at least two seconds.
The side windows move in the opposite
direction.XPress the 3 button for opening/closing
the panorama sliding sunroof.
The panorama sliding sunroof stops.XTo then open the panorama sliding sunroof,
press the 3 button again.
iNotes on the automatic reversing func-
tion for:
R the side window ( Y page 87)
R the panorama sliding sunroof
( Y page 90)
XConvenience opening feature: press and
hold the e button until the side win-
dows and the panorama sliding sunroof
have opened. The side windows and the
panorama sliding sunroof move back to
their original position.
The indicator lamp in the e button goes
out. Air-recirculation mode is deactivated.
i If you open the side windows or the pan-
orama sliding sunroof manually after clos-
ing with the convenience closing feature,
they will remain in this position when
opened using the convenience opening fea-
ture.
Activating/deactivating the residual
heat function
The residual heat function is only available
with THERMOTRONIC automatic climate con-
trol.
It is possible to make use of the residual heat
of the engine to continue heating the vehicle
for approximately 30 minutes after the engine
has been switched off. The heating time
depends on the temperature that has been
set for the vehicle interior.
i The blower will run at a low speed regard-
less 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.
XTurn the key to position 0 in the ignition
lock or remove it ( Y page 145).XTo activate: press the Ì button.
The indicator lamp in the Ì button lights
up.XTo deactivate: press the Ì button.
The indicator lamp in the Ì button goes
out.
i Residual heat is deactivated automati-
cally:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is switched on
Operating the climate control system135Climate controlZProCarManuals.com
Page 138 of 352
Auxiliary heating
Important safety notesGDANGER
If the exhaust pipe is blocked or sufficient
ventilation is not possible, toxic exhaust
fumes can enter the vehicle, especially car-
bon monoxide. This is the case, e.g. in
enclosed spaces, or if the vehicle is stuck in
snow. There is a risk of fatal injuries.
You should switch off the auxiliary heating in
enclosed spaces which do not have an extrac-
tion system, e.g. a garage. If the vehicle is
stuck in snow and you must leave the auxiliary
heating running, keep the exhaust pipe and
the area around the vehicle clear of snow. To
guarantee a sufficient supply of fresh air, open
a window on the side of the vehicle away from
the wind.
GWARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot.
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system for extended
periods. There is a risk of fire.
When the auxiliary heating is switched on,
make sure that no flammable material can
come into contact with hot vehicle compo-
nents.
! Operating the auxiliary heating/ventila-
tion draws on the vehicle battery. After you
have heated or ventilated the vehicle a
maximum of two times, drive for a longer
distance.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
The auxiliary heating heats the air in the vehi-
cle interior to the set temperature. This
occurs without using the heat of the running
engine. The auxiliary heating is operated
directly using the vehicle's fuel. For this rea-
son, the fuel tank must be at least ¼ full to
ensure that the auxiliary heating functions.
The auxiliary heating/ventilation automati-
cally adjusts to changes in temperature and
weather conditions. For this reason, the aux-
iliary heating could switch from ventilation
mode to heating mode or from heating mode
to ventilation mode.
The auxiliary heating switches off when the
engine is switched off. The auxiliary ventila-
tion switches off when you turn the key to key
position 2(Y page 145).
The auxiliary heating switches off automati-
cally after 30 minutes.
You cannot use the auxiliary ventilation to
cool the vehicle interior to a temperature
lower than the outside temperature.
Before switching onXTurn the key to position 2 in the ignition
lock ( Y page 145).XSet the desired temperature.
Auxiliary heating or ventilation can also be
switched on if the manually set climate con-
trol is activated. Optimum comfort can be
attained when the system is set to automatic
mode. Set the temperature to 22 †.
The auxiliary heating/ventilation can be acti-
vated or deactivated using the remote control
or the button on the centre console.
The on-board computer can be used to spec-
ify up to three departure times, one of which
may be preselected ( Y page 224).
136Operating the climate control systemClimate control
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Page 139 of 352
Switching the auxiliary heating/venti-
lation on/off using the centre console
button
Switching on the auxiliary heating/venti-
lation
The colours of the indicator lamps on the but-
ton have the following meanings:
BlueAuxiliary ventilation switched onRedAuxiliary heating switched onYellowDeparture time preselected
( Y page 224)XPress button :.
The red or blue indicator lamp in but-
ton : lights up.
Switching off the auxiliary heating/venti-
lation
XPress button :.
The red or blue indicator lamp in but-
ton : goes out.
Switching the auxiliary heating/venti-
lation on/off using the remote control
Your vehicle comes with one remote control.
You may use two additional remote controls
for your vehicle. For more information, please
contact a qualified specialist workshop.
The remote control has a maximum range of
approximately 300 metres. This range is
reduced by:
R sources of radio interference
R solid objects between the remote control
and the vehicle
R the remote control being in an unfavoura-
ble position in relation to the vehicle
R transmitting from an enclosed space
i The optimum range can be achieved if you
hold the remote control vertically, pointing
upwards when you press one of the but-
tons.
i A battery symbol appears in the display
when the battery in the remote control is
low. Replace the remote control battery
( Y page 138).
Switching the auxiliary heating/ventila-
tion on/off
Remote control
:Display;. To check the status/set the depar-
ture time=^ To switch off the auxiliary heating/
ventilation?u To switch on the auxiliary heating/
ventilationA, To check the status/set the depar-
ture timeXTo activate: press the u button.
ON is shown in the remote control display.XTo deactivate: press the ^ button.
OFF is shown in the remote control display.
Checking the status of the auxiliary heat-
ing/ventilation
XPress the , or . button.Operating the climate control system137Climate controlZProCarManuals.com
Page 140 of 352
The following messages may appear in the
display:DisplayMeaningThe auxiliary heating/
ventilation is switched
off.The auxiliary ventilation
is switched on. The num-
ber in the display shows
the remaining time (in
minutes) for the auxiliary
ventilation.The auxiliary heating is
switched on. The number
in the display shows the
remaining time (in
minutes) for the auxiliary
heating.A departure time has
been activated. The
departure time appears
in the display.A departure time has
been activated. The aux-
iliary ventilation is cur-
rently activated. The
departure time appears
in the display.A departure time has
been activated. The aux-
iliary heating is currently
activated. The departure
time appears in the dis-
play.Setting the departure timeXPress the , or . button repeatedly
until the time to be changed appears in the
display.XPress the u and ^ buttons simulta-
neously.
The Î symbol in the remote control dis-
play flashes.XPress the , or . button to set the
desired departure time.
i The longer you press the , or .
button, the faster the time changes.
XPress the u and ^ buttons simulta-
neously.
The new departure time is stored.
Activating the set departure time
XPress the , or . button repeatedly
until the desired departure time appears in
the display.XPress the u button.
The Í symbol and the departure time
appear in the display.
Deactivating a set departure time
XPress the , or . button.
The status of the auxiliary heating is shown
in the display.XPress the . button.
The first departure time stored appears in
the display.XPress the ^ button.
OFF is shown in the remote control display.
Replacing the remote control battery
GWARNING
Batteries contain toxic and corrosive substan-
ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal
injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
138Operating the climate control systemClimate control
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Page 141 of 352
HEnvironmental noteBatteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep-
arately and disposed of in an
environmentally responsible
recycling system.Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
One 6 V pin battery, type 2CR11108 is
required.
XPrise apart the side arms of battery
cover ; and pull off battery cover ;.XRemove old battery :.XInsert the new battery. Observe the polarity
signs on the back of the remote control
when doing so.XSlide battery cover ; back onto the
remote control.XUse the remote control to check the vehi-
cle's auxiliary heating functions.Operating the climate control system139Climate controlZProCarManuals.com
Page 142 of 352
Problems with the auxiliary heating/ventilationDisplay messagesPossible causes/consequences and M Solutions$
FAILThe signal transmission between the transmitter and the vehicle
is faulty.XChange your position in relation to the vehicle, moving closer if
necessary.XMake another attempt to switch the auxiliary heating on or off
using the remote control.©
FAILThere is too little fuel in the fuel tank.XRefuel at the nearest filling station.XMake another attempt to switch on the auxiliary heating using
the remote control.The auxiliary heating is faulty.XHave the auxiliary heating checked at a qualified specialist
workshop.FAILThe auxiliary heating cannot be switched on or has switched itself
off.
The auxiliary heating was started more than twice when the engine
was switched off.XSwitch on the engine and let it run for more than ten seconds.XMake another attempt to switch on the auxiliary heating using
the remote control.The auxiliary heating cannot be switched on or has switched itself
off.
The starter battery is not sufficiently charged.XCharge the starter battery.XMake another attempt to switch on the auxiliary heating using
the remote control.140Operating the climate control systemClimate control
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Page 143 of 352
Display messagesPossible causes/consequences and M SolutionsThe auxiliary heating cannot be switched on or has switched itself
off.
There is too little fuel in the fuel tank.XRefuel at the nearest filling station.XMake another attempt to switch on the auxiliary heating using
the remote control.The auxiliary heating cannot be switched on or has switched itself
off.
The auxiliary heating is faulty.XHave the auxiliary heating checked at a qualified specialist
workshop.Adjusting 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 out-
lets. 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:
R keep the air inlet between the windscreen
and the bonnet free of blockages, such as
ice, snow or leaves.
R never cover the vents or ventilation grilles
in the vehicle interior.
i Move the adjusters for the air vents ver-
tically or horizontally, to set the direction of
the airflow.
i Optimal climate control function is ach-
ieved by opening the air vents fully and set-
ting the adjusters to the middle position.
Setting the centre air ventsXTo open the centre air vent: turn the
adjuster in one of centre air vents : anti-
clockwise.XTo close the centre air vent: turn the
adjuster in one of centre air vents : clock-
wise until it engages.Adjusting the air vents141Climate controlZProCarManuals.com
Page 144 of 352
Adjusting the side air vents:Side window demister vent;Side air ventXTo open a side air vent: turn the adjuster
in side air vent ; anti-clockwise.XTo close a side air vent: turn the adjuster
in side air vent ; clockwise until it
engages.
Setting the rear-compartment air
vents
:Rear-compartment air vent, left;Rear-compartment air vent, right=Rear-compartment air vent thumbwheelXTo open/close: turn thumbwheel = up or
down.142Adjusting the air ventsClimate control
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Page 339 of 352
HEnvironmental note
Dispose of service products in an environ-
mentally-responsible manner.
Service products include the following:
R Fuels (e.g. petrol, diesel)
R Lubricants (e.g. engine oil, transmission oil)
R Coolant
R Brake fluid
R Windscreen washer fluid
R Climate control system refrigerant
Components and service products must be
matched. Mercedes-Benz recommends that
you use products tested and approved by
Mercedes-Benz. They are listed in this
Mercedes-Benz Owner's Manual in the appro-
priate section.
You can identify service products approved
by Mercedes-Benz by the following inscrip-
tions on the container:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations indi-
cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g.
MB 229.5). They have not necessarily been
approved by Mercedes-Benz.
Further information can be obtained from any
Mercedes-Benz Service Centre or on the
Internet at http://bevo.mercedes-benz.com.
Fuel
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, naked flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before
refuelling.
GWARNING
Fuels are poisonous and hazardous to health.
There is a danger of injury.
Do not swallow fuel or let it come into contact
with skin, eyes or clothing. Do not inhale fuel
vapours. Keep fuels out of the reach of chil-
dren.
If you or others come into contact with fuel,
observe the following:
R Wash the fuel off any affected areas of skin
with water and soap immediately.
R If you get fuel in your eyes, rinse them thor-
oughly with clean water immediately. Seek
immediate medical attention.
R If fuel is swallowed, seek immediate medi-
cal attention. Do not induce vomiting.
R Change any clothing that has come into
contact with fuel immediately.
Tank capacity
ModelTotal capa- cityAll models50.0 lModelOf which
reserve fuelAll modelsApprox. 6.0 l
Petrol (EN 228, E DIN 51626-1)
Fuel grade
! Do not use diesel to refuel vehicles with a
petrol engine. Do not switch on the ignition
if you accidentally refuel with the wrong
fuel. Otherwise, fuel can enter the fuel sys-
tem. Even small amounts of the wrong fuel
could result in damage to the fuel system
and the engine. Notify a qualified specialist
workshop and have the fuel tank and fuel
lines drained completely.
Service products and capacities337Technical dataZProCarManuals.com
Page 341 of 352
Diesel (EN 590)
Fuel grade
GWARNING
If you mix diesel fuel with petrol, the flash
point of this fuel mixture is lower than that of
pure diesel fuel. When the engine is running,
components in the exhaust system may over-
heat unnoticed. There is a risk of fire.
Never refuel with petrol. Never add petrol to
diesel fuel.
! When refuelling, only use diesel fuel that
conforms to the European standard EN 590
or is of equivalent quality. Fuel that does
not conform to EN 590 can lead to
increased wear as well as damage to the
engine and exhaust system.
! Do not use the following:
R marine diesel
R heating oil
R bio-diesel
R vegetable oil
R petrol
R paraffin
R kerosene
Do not mix such fuels with diesel fuel and
do not use any special additives. This can
otherwise lead to engine damage.
! Vehicles with a diesel particle filter: in
countries outside the EU, only refuel with
low-sulphur Euro diesel with a sulphur con-
tent under 50 ppm; otherwise the emission
control system could be damaged.
! Vehicles without a diesel particle fil-
ter: in countries where only diesel fuel with
a high sulphur content is available, you will
need to carry out your vehicle's oil change
at shorter intervals. More information
about the interval for oil change can be
obtained from any qualified specialist
workshop.
Usually you will find information about the
fuel grade on the pump. If you cannot find the
label on the petrol pump, ask the filling sta-
tion staff.
Information on refuelling ( Y page 159).
Low outside temperatures
In winter months, diesel fuel with an improved
cold flow quality is available. In Europe, the
EN 590 standard defines various climate-
dependent temperature categories. Malfunc-
tions can be avoided by refuelling with diesel
fuel that corresponds to the climatic specifi-
cations outlined in EN 590. At unusually low
outside temperatures, it is possible that the
flow characteristics of the diesel fuel could be
insufficient. Accordingly, diesel fuel from
warmer areas may not be suitable for opera-
tion in colder climatic conditions.
i Further information on country-specific
fuel properties and fuel types with low-tem-
perature resistance can be obtained from
oil companies, e.g. at filling stations.
Fuel consumption informationHEnvironmental note
CO 2 (carbon dioxide) is the gas which scien-
tists believe to be principally responsible for
global warming (the greenhouse effect). Your
vehicle's CO 2 emissions are directly related to
fuel consumption and therefore depend on:
R efficient use of the fuel by the engine
R driving style
R other non-technical factors, such as envi-
ronmental influences, road conditions or
traffic flow
You can minimise your vehicle's CO 2 emis-
sions by driving carefully and having it serv-
iced regularly.
The vehicle will use more fuel than usual in
the following situations:
R at very low outside temperatures
R in urban traffic
R on short journeys
Service products and capacities339Technical dataZProCarManuals.com