2016 MERCEDES-BENZ CLA COUPE engine

THERMOTRONIC automatic climate
control X
Turn the key to position 2in the ignition lock
(Y page 133).
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
or X Press the ^button.
The indicator lamp in the ^button goes
out. The previous settings are reactivated.
X To deactivate: press the^button.
The indicator lamp in the ^button lights
up.
i THERMOTRONIC automatic climate control:
switch on climate control primarily using the
à button. Activating/deactivating cooling with
dehumidification
General notes If you deactivate the "Cooling with air dehumid-
ification" function, the air inside the vehicle will not be cooled during warm weather. The air
inside the vehicle will also not be dehumidified.
The windows can mist up more quickly. There-
fore, only deactivate the "Cooling with air dehu- midification" function briefly.
The "Cooling with air dehumidification" function
is available only when the engine is running. The air inside the vehicle is cooled and dehumidified
according to the temperature selected.
Condensation may drip from the underside of
the vehicle when cooling mode is active. This is
normal and not a sign that there is a malfunc-
tion.
Activating/deactivating X
Press the ¿button.
The indicator lamp in the ¿button lights
up or goes out.
The indicator lamp in the button indicates that the respective function is activated. The cool- ing with air dehumidification function has a
delayed switch-off feature.
Problems with the "Cooling with air dehumidification" function Problem
Possible causes/consequences and
M MSolutions The indicator lamp in the
¿ button flashes
three times or remains
off. The cooling with air
dehumidification func-
tion cannot be activated. The cooling with air dehumidification function has been deactivated
due to a malfunction.
X Consult a qualified specialist workshop. Setting climate control to automatic
mode
General notes Only THERMOTRONIC automatic climate con-
trol features the "Control climate control auto-
matically" function.
In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode. Operating the climate control system
121Climate control

with the convenience closing feature, they
will remain in this position when opened using
the convenience opening feature. Switching the residual heat on/off
General notes The residual heat function is only available with
THERMOTRONIC automatic climate control.
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 set interior temperature.
i The blower will run at a low speed regardless
of the airflow setting.
i If you switch on the residual heat function at
high temperatures, only the ventilation will be
activated. The blower runs at medium speed.
i You cannot use the ventilation to cool the
vehicle interior to a temperature lower than
the outside temperature.
Activating/deactivating X
Turn the key to position 0in the ignition lock
or remove it (Y page 133).
X Press the Ìbutton.
The indicator lamp in the Ìbutton lights
up or goes out.
The indicator lamp in the button indicates that the respective function is activated.
i Residual heat is switched off 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 switched on Auxiliary heating
Important safety notes G
DANGER
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. G
WARNING
When the auxiliary heating is switched on,
parts of the vehicle can become very hot.
Flammable materials such as leaves, grass or twigs may ignite if they come into contact
with:
R hot parts of the exhaust system
R the exhaust gas itself
There is a risk of fire.
When the auxiliary heating is switched on,
make sure that:
R no flammable materials come into contact
with hot vehicle components
R the exhaust gas can escape from the
exhaust pipe unhindered
R the exhaust gas does not come into contact
with flammable materials.
The auxiliary heating and the exhaust gas outlet are situated in front of the right-hand front
wheel.
! Operating the auxiliary heating/ventilation
draws on the vehicle battery. After you have
heated or ventilated the vehicle a maximum of two times, drive for a longer distance.
Switch the auxiliary heating on regularly once a
month for about ten minutes.
The auxiliary heating timer function calculates
the switch-on time according to the outside
temperature so that the vehicle is preheated by the departure time. When the departure time isreached, the auxiliary heating continues to heat
for a further five minutes and then switches off. 126
Operating the climate control systemClimate control

The auxiliary heating heats the air in the vehicle
interior to the set temperature. This occurs with- out using the heat of the running engine. The
auxiliary heating is operated directly using the
vehicle's fuel. For this reason, the fuel tank must
be at least Õfull to ensure that the auxiliary
heating functions.
The auxiliary heating/ventilation automatically
adjusts to changes in temperature and weather conditions. For this reason, the auxiliary 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 ventilation
switches off when you turn the key to key posi-
tion 2(Y page 133).
The auxiliary heating switches off automatically
after 50 minutes.
You cannot use the auxiliary ventilation to cool
the vehicle interior to a temperature lower than
the outside temperature.
Before switching on X
Turn the key to position 2in the ignition lock
(Y page 133).
X Set the desired temperature.
Auxiliary heating or ventilation can also be
switched on if the manually set climate control is
activated. Optimum comfort is attained by set-
ting the system to automatic mode. Set the tem-
perature to 22 †.
The auxiliary heating or auxiliary ventilation can be switched on/off using the button on the
centre console or the remote control.
The on-board computer can be used to specify
up to three departure times, one of which may
be preselected (Y page 211). Switching the auxiliary heating/venti-
lation on or off using the button on the
centre console General notes
The colours of the indicator lamps on button
:
signify the following:
R Blue: auxiliary ventilation activated
R Red: auxiliary heating activated
R Yellow: departure time preselected
(Y page 211)
Activating/deactivating the auxiliary
heating or auxiliary ventilation
X Press button :.
The red or blue indicator lamp in button :
lights up or goes out.
Switching the auxiliary heating/venti-
lation on or off using the remote control General notes
Your vehicle comes with one remote control.
You may use two additional remote controls for
your vehicle. For more information, please con-
tact a qualified specialist workshop.
Store the remote control for the auxiliary heat-
ing so that the auxiliary heating cannot be
switched on unintentionally. In particular,
ensure that the remote control for the auxiliary
heating is kept out of the reach of children.
The remote control has a 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 Operating the climate control system
127Climate control Z

R
the remote control being in an unfavourable
position in relation to the vehicle
R transmitting from an enclosed space
If the remote control battery is low, the battery
symbol on the left of the display is shown as
empty. Replace the remote control battery and
observe the important safety notes when doing so (Y page 129).
Activating/deactivating the auxiliary
heating or auxiliary ventilation Remote control
:
Display
; u Switches the auxiliary heating or aux-
iliary ventilation on
Checks the status
= . Sets the departure time
? ^ Switches the auxiliary heating or aux-
iliary ventilation off
A , Sets the departure time
X To switch on: press and hold the ubut-
ton.
ON is shown in the remote control display.
X To switch off: press and hold the ^but-
ton.
OFF is shown in the remote control display.
Checking the status of the auxiliary heat-
ing or auxiliary ventilation
X Briefly press the ubutton.
The following messages may appear on the dis- play: Display Meaning
The auxiliary heating or
auxiliary ventilation is
deactivated. The auxiliary ventilation is
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
ventilation.
The auxiliary heating is
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
heating.
A departure time has been
activated. The departure
time appears on the dis-
play. A departure time has been
activated. The auxiliary
ventilation is currently
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
ventilation. If the vehicle is
not started after this time, the running time is
increased by five minutes. A departure time has been
activated. The auxiliary
heating is currently activa-
ted. The number on the
display shows the remain-
ing time (in minutes) for
the auxiliary heating. If the
vehicle is not started after this time, the running time
is increased by five
minutes. If the engine has not yet reached operating tem-
perature when it is started, the auxiliary heating running time is increased. The auxiliary heating
continues to run until the operating temperature
is reached. If this is the case, the ysymbol
appears in the remote control display and the
running time is zero minutes.
Setting the departure time
Make sure that the time set in the vehicle is
correct before setting the departure time (see
the separate operating instructions). Otherwise, the auxiliary heating may activate at the wrong 128
Operating the climate control systemClimate control

Running-in notes
Important safety notes
In certain driving and driving safety systems, the sensors adjust automatically while a certain dis-
tance is being driven after the vehicle has been delivered or after repairs. Full system effective-
ness is not reached until the end of this teach-in process.
Brake pads/linings and discs that are either new or have been replaced only achieve optimum
braking effect after several hundred kilometres
of driving. Compensate for the reduced braking
effect by applying greater force to the brake
pedal. The first 1500 km
The more you treat the engine with sufficient
care at the start, the more satisfied you will be
with the engine performance later on.
R Drive at varying vehicle speeds and engine
speeds for the first 1500 km.
R Avoid overstraining the vehicle during this
period, e.g. driving at full throttle.
R Change gear in good time, before the rev
counter needle is Ôof the way to the red area
of the rev counter.
R Do not shift down a gear manually in order to
brake.
R Vehicles with automatic transmission: try
to avoid depressing the accelerator pedal
beyond the point of resistance (kickdown).
Additional notes on running in Mercedes-AMG
vehicles:
R for the first 1,500 km do not drive at speeds
above 140 km/h.
R only allow the engine to reach a maximum
engine speed of 4,500 rpm briefly.
After 1,500 km, you may gradually bring the
vehicle up to full road and engine speeds.
You should also observe these notes on running- in if the engine or parts of the drive train on your
vehicle have been replaced.
Always observe the maximum permissible
speed. Driving
Important safety notes
G
WARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardises the oper-
ating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicle so that
they do not get into the driver's footwell.
Always fit the floormats securely and as pre-
scribed in order to ensure that there is always sufficient room for the pedals. Do not use
loose floormats and do not place several floor-mats on top of one another. G
WARNING
Unsuitable footwear can hinder correct usage of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk of an accident.
Do not switch off the ignition while driving. G
WARNING
If the parking brake has not been fully
released when driving, the parking brake can:
R overheat and cause a fire
R lose its hold function.
There is a risk of fire and an accident. Release
the parking brake fully before driving off. 132
DrivingDriving and parking

!
Do not warm up the engine when the vehicle
is stationary. Drive off immediately. Avoid
high engine speeds and driving at full throttle
until the engine has reached its operating
temperature.
Only shift the automatic transmission to the
desired drive position when the vehicle is sta- tionary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
! Mercedes-AMG vehicles:
avoid full-load
operation and engine speeds greater than
5000 rpm when the engine is cold. This will
help to protect the engine and maintain
smooth engine operation. Key positions
Key g
To remove the key
1 Power supply for some consumers, such as
the windscreen wipers
2 Ignition (power supply for all consumers)
and drive position
3 To start the vehicle
Vehicles with manual transmission: the
steering is locked when the key is taken out of
the ignition lock.
i If the key does not belong to the vehicle, it
can still be turned in the ignition lock. How-
ever, the ignition will not be switched on. The engine cannot be started. Start/Stop button General notes
Vehicles with KEYLESS-GO are equipped with
keys featuring an integrated KEYLESS-GO func- tion and a detachable Start/Stop button.
A check that periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in the vehicle.This occurs, for example, when the engine is
started.
When you insert the Start/Stop button in the
ignition lock, the system needs approximately
two seconds of recognition time. You can then
use the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the different key
positions in the ignition lock. Pre-requisite for
this is that:
R you do not depress the brake pedal (vehicles
with automatic transmission)
R you do not depress the clutch pedal (vehicles
with manual transmission)
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately (vehicles with automatic transmission).
If you depress the clutch pedal and press the
Start/Stop button, the engine starts immedi-
ately (vehicles with manual transmission).
To start the vehicle without actively using the
key:
R the Start/Stop button must be inserted in the
ignition lock
R the key must be in the vehicle
R the vehicle must not be locked with the key or
KEYLESS-GO (Y page 77)
Do not keep the KEYLESS-GO key:
R with electronic devices, e.g. a mobile phone
or another key
R with metallic objects, e.g. coins or metal foil
R inside metallic objects, e.g. a metal case
This can affect the functionality of KEYLESS-GO.
If you lock the vehicle with the key's remote
control or with KEYLESS-GO, after a short time:
R you will no longer be able to switch on the
ignition with the Start/Stop button
R you will no longer be able to start the engine
with the Start/Stop button until the vehicle is
unlocked again Driving
133Driving and parking Z

If you lock the vehicle centrally using the button
on the front door (Y page 84), you can continue
to start the engine with the Start/Stop button.
You can switch off the engine while the vehicle is
in motion by pressing and holding the Start/
Stop button for around three seconds. This func-
tion operates independently of the ECO start/
stop automatic engine switch-off function.
Key positions with the Start/Stop button :
Start/Stop button
; Ignition lock
When you switch on the ignition, all of the indi-
cator lamps in the instrument cluster light up.
For further information on situations in which an indicator lamp either fails to go out after the
engine is started or lights up while driving,
please refer to "Warning and indicator lamps in
the instrument cluster" (Y page 249).
If Start/Stop button :has not yet been
pressed, this corresponds to the key being
removed from the ignition.
X To switch on the power supply: press
Start/Stop button :once.
The power supply is switched on. You can now activate the windscreen wipers, for example.
The power supply is switched off again if:
R the driver's door is opened and
R you press Start/Stop button :twice when in
this position
X To switch on the ignition: press Start/Stop
button :twice.
The ignition is switched on.
If you press Start/Stop button :once when
in this position, the ignition is deactivated
again. Removing the Start/Stop button
You can remove the Start/Stop button from the
ignition lock and start the vehicle as normal
using the key.
You can only switch between Start/Stop button
mode and key operation when the vehicle is sta- tionary.
You must also engage park position P(vehicles
with automatic transmission).
X Remove Start/Stop button :from ignition
lock ;.
You do not have to remove the Start/Stop but-
ton from the ignition lock when you leave the
vehicle. You should, however, always take the
key with you when leaving the vehicle. As long as
the key is in the vehicle:
R the vehicle can be started using the Start/
Stop button
R the electrically powered equipment can be
operated Starting the vehicle
Important safety notes G
WARNING
If children are left unsupervised in the vehicle, they could:
R open doors, thereby endangering other per-
sons or road users
R get out and be struck by oncoming traffic
R operate vehicle equipment and become
trapped, for example
In addition, the children could also set the
vehicle in motion, for example, if they:
R release the parking brake
R shift the automatic transmission out of park
position P or shift manual transmission into
neutral
R start the engine
There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children and animals unattended in the vehi-
cle. Keep the keys out of the reach of children. 134
DrivingDriving and parking

G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation. G
WARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
General notes Vehicles with a petrol engine:
the engine runs
at a higher engine speed during the cold start
procedure so that the catalytic converter can
reach operating temperature more quickly. The
sound of the engine may change as a result.
Manual transmission You can only start the engine when the clutch
pedal is fully depressed.
X Depress the brake pedal and keep it
depressed.
X Depress the clutch pedal fully.
X Shift to neutral N.
Automatic transmission X
Shift the transmission to position
P(Y page 144).
The transmission position indicator in the
multifunction display shows P(Y page 144).
i You can start the engine in transmission
position Pand N. Starting procedure using the key To start the engine using the key instead of the
Start/Stop button, pull the Start/Stop button
out of the ignition lock.
X To start a diesel engine: turn the key to
position 2in the ignition lock (Y page 133).
The % preglow indicator lamp in the instru-
ment cluster lights up.
X Turn the key to position 3(Y page 133) in the
ignition lock and release it as soon as the
engine is running.
Starting procedure using the Start/
Stop button The Start/Stop button can be used to start the
vehicle manually without inserting the key in the ignition lock. The key must be in the vehicle and the Start/Stop button must be inserted in the
ignition lock. This mode for starting the engine
manually operates independently of the ECO
start/stop automatic engine start function.
You can start the engine if a valid key is in the
vehicle. Switch off the engine and always take
the key with you when leaving the vehicle, even
if you only leave it for a short time. Pay attention
to the important safety notes.
X Vehicles with automatic transmission:
depress the brake pedal and keep it
depressed.
X Vehicles with manual transmission:
depress the clutch pedal and keep it
depressed.
X Press the Start/Stop button once
(Y page 133).
Vehicles with a petrol engine: the engine
starts.
Vehicles with a diesel engine: preglow is
activated and the engine starts. Pulling away
General notes G
WARNING
Vehicles with automatic transmission:
If the engine speed is above the engine idling speed and you then engage transmission Driving
135Driving and parking
Z