2017 MERCEDES-BENZ CLA phone

SmartKey
Important safety notes
G WARNING
If children are left unsupervised in the vehicle,
they could: R
open the doors, thus endangering other
people or road users. R
get out and disrupt traffic. R
operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they: R
release the parking brake. R
shifting the automatic transmission out of
park position PR
Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
G WARNING
If you attach heavy or large objects to the
SmartKey, the SmartKey could be uninten-
tionally turned in the ignition lock. This could
cause the engine to be switched off. There is a
risk of an accident.
Do not attach any heavy or large objects to the
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
! Keep the SmartKey away from strong mag-
netic fields. Otherwise, the remote control
function could be affected.
Strong magnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the SmartKey: R
with electronic devices, e.g. a mobile phone
or another SmartKey. R
with metallic objects, e.g. coins or metal foil. R
inside metallic objects, e.g. a metal case
Vehicles with KEYLESS-GO start function: do
not keep the SmartKey in the trunk. Otherwise, the SmartKey may not be detected, e.g. when
starting the engine using the Start/Stop button.
SmartKey functions
C
7 To lock the vehicleD
T To open the trunk lid

Overview of climate control systems
General notes Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up: R
switch off climate control only briefly R
switch on air-recirculation mode only briefly R
switch on the cooling with air dehumidifica-
tion function R
switch on the defrost windshield function
briefly, if required
The air-conditioning system or dual-zone auto-
matic climate control regulates the temperature
and the humidity of the vehicle interior and fil-
ters undesirable substances from the air.
The air-conditioning system or dual-zone auto-
matic climate control can only be operated
when the engine is running. Optimum operation
is only achieved with the side windows and pan-
orama roof with power tilt/sliding panel closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated ( Y
page 122).
The residual heat function can only be activated
or deactivated with the ignition switched off
( Y
page 118). Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear
( Y
page 105). Otherwise the vehicle will not be
ventilated correctly.
i Ventilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature ( Y
page 82). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
i The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. A clogged filter reduces the
amount of air supplied to the vehicle interior.
For this reason, you should always observe
the interval for replacing the filter, which is
specified in the Maintenance Booklet. As it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance Book-
let.
i It is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the aut o-
mat ic climate control. The vehicle is then ven-
tilated for 30 minutes.Overview of climate control systems 109
Climate control

! Do not warm up the engine with the vehicle
stationary. Drive off immediately. Avoid high
engine speeds and driving at full throttle until
the engine has reached its operating temper-
ature.
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 helps
to protect the engine and avoids uncomfort-
able driving.
SmartKey positions
SmartKey
Z
To remove the SmartKey
(shift the transmission to position P )G
Power supply for some consumers, such as
the windshield wipersH
Ignition (power supply for all consumers)
and drive position
I
To start the engine
i The SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started. Start/Stop button General notes Vehicles with KEYLESS-GO are equipped with
SmartKeys featuring the integrated KEYLESS-
GO function and a detachable Start/Stop but-
ton.
A check which periodically establishes a radio
connection between the vehicle and the Smart-
Key determines whether a valid SmartKey is in
the vehicle. This occurs, for example, when
starting the engine.
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the different Smart-
Key positions in the ignition lock. This is only the
case if you are not depressing the brake pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
To start the vehicle without actively using the
SmartKey: R
the Start/Stop button must be inserted in the
ignition lock. R
the SmartKey must be in the vehicle. R
the vehicle must not be locked with the
SmartKey or KEYLESS-GO ( Y
page 70)
Do not keep the KEYLESS-GO key: R
with electronic devices, e.g. a mobile phone
or another SmartKey. 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 SmartKey remote
control or with KEYLESS-GO, after a short time: R
you will not 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
If you lock the vehicle centrally using the button
on the front door ( Y
page 75), you can continue
to start the engine with the Start/Stop button.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function Driving 121
Driving and parking Z

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 During a cold start, the engine runs at higher
speeds to enable the catalytic converter to
reach its operating temperature. The sound of
the engine may change during this time.
Automatic transmission X
Shift the transmission to position P
( Y
page 129).
The transmission position display in the mul-
tifunction display shows P ( Y
page 129).
i You can start the engine in transmission
position P and N .
Starting procedure with the SmartKey To start the engine using the SmartKey instead
of the Start/Stop button, pull the Start/Stop
button out of the ignition lock. X
Turn the SmartKey to position 3 in the ignition
lock and release it as soon as the engine is
running ( Y
page 121).
Starting procedure with the Start/Stop
button The Start/Stop button can be used to start the
vehicle manually without inserting the SmartKey
into the ignition lock. The Start/Stop button
must be inserted in the ignition lock and the
SmartKey must be in the vehicle. This mode for
starting the engine operates independently of
the ECO start/stop automatic engine start func-
tion.
You can start the engine if a valid SmartKey is in
the vehicle. Switch off the engine and always
take the SmartKey with you when leaving the vehicle, even if you only leave it for a short time.
Pay attention to the important safety notes. X
Depress the brake pedal and keep it
depressed. X
Press the Start/Stop button once
( Y
page 121).
The engine starts.
Starting procedure via smartphone Observe the important safety notes on starting
the engine ( Y
page 122).
You can also start your engine via your smart-
phone from outside the vehicle. In this case, the
previously selected climate control setting is
activated. In this way you can cool or heat the
interior of the vehicle before starting the jour-
ney.
Only start the engine via your smartphone if it is
safe to start and run the engine where your vehi-
cle is parked.
Observe the legal stipulations in the area where
your vehicle is parked. Engine start via smart-
phone may be limited to certain countries or
regions.
You can execute a maximum of two consecutive
starting attempts via your smartphone. If you
insert the SmartKey into the ignition lock, you
can carry out two more starting attempts.
Once you have started the engine, you can
switch the engine off via your smartphone at any
time.
You can only start the engine via your smart-
phone if: R
the SmartKey is in the ignition lock R
park position P is selected R
the accelerator pedal is not depressed R
the anti-theft alarm system is not activated R
the panic alarm is not activated R
the hazard warning lamps are switched off R
the hood is closed. R
the doors are closed and locked R
the windows and sliding sunroof are closed
Also make sure that: R
the fuel tank is sufficiently filled R
the starter battery is sufficiently charged
G WARNING
Limbs could be crushed or trapped if the
engine is started unintentionally during ser- Driving 123
Driving and parking Z

vice or maintenance work. There is a risk of
injury.
Always secure the engine against uninten-
tional starting before carrying out mainte-
nance or repair work.
Make sure that the engine cannot be started via
your smartphone before carrying out mainte-
nance or repairs. You can prevent an engine
start via your smartphone, for example, if you: R
switch on the hazard warning lamps R
do not lock the doors R
open the hood
Pulling away
General notes
G WARNING
If the engine speed is above the idling speed
and you engage transmission position D or R ,
the vehicle could pull away suddenly. There is
a risk of an accident.
When engaging transmission position D or R ,
always firmly depress the brake pedal and do
not simultaneously accelerate.
Depress the accelerator carefully when pulling
away.
The vehicle locks centrally once you have pulled
away. The locking knobs in the doors drop down.
You can open the doors from the inside at any
time.
You can also deactivate the automatic locking
feature ( Y
page 184).
It is only possible to shift the transmission from
position P to the desired position if you depress
the brake pedal. Only then can the parking lock
be deactivated.
All vehicles (except Mercedes-AMG vehi-
cles): if you do not depress the brake pedal, the
DIRECT SELECT lever can still be moved but the
parking lock remains engaged.
Mercedes-AMG vehicles: if you do not depress
the brake pedal, the selector lever can still be
moved but the parking lock remains engaged.
At transmission fluid temperatures below

Drivin g tips
General notes
Important safet y notes
G WARNING
If you switch of f th e ignition whil e driving,
safety-relevant function s are only available
wit h limitations, or no t at all. Thi s could affect,
fo r example, th e powe r steerin g and th e brake
boostin g effect . You will require considerably
more effort to steer and brake . There is a ris k
of an accident.
Do no t switch of f th e ignition whil e driving.
G WARNING
If you operat e mobile communication equip -
men t whil e driving, you will be distracted from
traffic conditions. You could also los e contro l
of th e vehicle. There is a ris k of an accident.
Only operat e this equipmen t when th e vehicle
is stationary.
Observ e th e lega l requirements fo r th e country
in whic h you are driving. Some jurisdiction s pro -
hibi t th e driver from usin g a mobile phone whil e
drivin g a vehicle.
If you mak e a cal l whil e driving, always use
hands-free mode. Only operat e th e telephon e
when th e traffic situation permits. If you are
unsure , pull over to a saf e location and stop
befor e operatin g th e telephone.
Bear in min d that at a speed of only 30 mph
(approximately 50 km/h), th e vehicle cover s a
distanc e of 44 ft (approximately 14 m) per sec-
ond.
Drive sensibly – save fuel Observe the following tips to save fuel: R
The tires should always be inflated to the rec-
ommended tire pressure. R
Remove unnecessary loads. R
Remove roof racks when they are not needed. R
Warm up the engine at low engine speeds. R
Avoid frequent acceleration or braking. R
Have all maintenance work carried out as
indicated by the service intervals in the Main- tenance Booklet or by the service interval dis-
play.
Fuel consumption also increases when driving in
cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
G WARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of a serious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
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.
Certain engine systems are designed to keep
the level of poisonous components in exhaust
fumes within legal limits.
These systems only work at peak efficiency if
they are serviced exactly in accordance with the
manufacturer's specifications. Always have
work on the engine carried out at a qualified
specialist workshop. Mercedes-Benz recom-
mends that you use an authorized Mercedes-
Benz Center for this purpose. In particular, work
relevant to safety or on safety-related systems
must be carried out at a qualified specialist
workshop.
The engine settings must not be changed under
any circumstances. Furthermore, all specific
service work must be carried out at regular
intervals and in accordance with the Mercedes-
Benz service requirements. Details can be found
in the Maintenance Booklet. Driving tips 143
Driving and parking Z

c
d Press and hold: R
In the Audio menu: selects a pre-
set list or a station list in the
desired frequency range, or an
audio track or video scene using
rapid scrolling R
In the Tel (Telephone) menu:
starts rapid scrolling if the phone
book is open
v R
Confirms the selection or display
message R
In the Tel (Telephone) menu:
switches to the phone book and
starts dialing the selected number
8 Press briefly: R
Back R
Vehicles with Audio 20: switches
off voice-operated control of the
navigation (see manufacturer's
operating instructions) R
Vehicles with COMAND: switches
off the Voice Control System (see
the separate operating instruc-
tions) R
Hides display messages or calls up
the last Trip menu function usedR
Exits the telephone book/redial
memory
8 Press and hold: R
Calls up the standard display in the
Trip menu
Right control panel

Audio menu
Selecting a ra dio station
C
Active station listD
Station frequency wit h memory position
The multifunction display shows station D wit h
station frequency or station name. The preset
position is only displayed alon g wit h station D if
this has been stored. X
Switc h on th e multimedia system and select
Radio (see th e separat e operating instruc-
tions). X
Press th e Y or e butto n on th e steering
whee l to select th e Audio menu.X
To select a preset list or station list : press
and briefl y hold th e c or d butto n until
th e preset list or station list in th e desired
frequency range is shown. X
To select a station: briefl y press c
or d .
i SIRIUS XM satellit e radi o function s lik e a
normal radio.
You can fin d further information on operation
in th e "Satellit e radio" section of th e separat e
multimedia system operating instructions.
Operating an audio player or audio
media
C
Curren t titl e Audio dat a from various audio device s or media
can be played , depending on th e equipmen t
installed in th e vehicle. X
Switc h on th e multimedia system and then
audio CD or MP3 mod e (see th e separat e
operating instructions). X
Press th e Y or e butto n on th e steering
whee l to select th e Audio menu.X
To select th e next/previou s track : briefl y
press th e c or d button.X
To select a track from th e track list (rapid
scrolling): press and hold th e c or d
butto n until desired track appears.
If you press and hold c or d , th e rapi d
scrollin g spee d is increased. Not all audio
drives or dat a carriers support this function .
If track information is store d on th e audio device
or medium, th e multifunction display will sho w
th e number and titl e of th e track .
Video DVD operation
You can only operate DV D videos in th e Audio
men u in vehicles wit h COMAND .X
Switc h on COMAND and select video DV D
(see th e separat e operating instructions).X
Press th e Y or e butto n on th e steering
whee l to select th e Audio menu.X
To select th e next or previou s scene:
briefl y press th e c or d button.X
To select a scene from th e scene list
(rapid scrolling): press and hold th e c
or d butto n until desired scen e C
appears.
Telephone menu
Int rod uction
G WARNIN G
If you operate information systems and com-
munication equipmen t integrate d in th e vehi-180
Menus and submenus
On-board computer and displays