ignition MERCEDES-BENZ CLA 2016 User Guide

Deactivating an d activatingIf you do no t intend to use th e vehicle fo r a
longer period of time, you can deactivat e KEY-
LESS-GO . The SmartKey will then use ver y lit -
tl e power, thereby conservin g battery power.
Fo r th e purposes of activation/deactivation ,
th e vehicle mus t no t be nearby.X
To deactivate : press th e 7 butto n on
th e SmartKey twic e in rapid succession .
The battery chec k lamp of th e SmartKey
flashes twic e briefly and lights up once ,
then KEYLESS-GO is deactivated
( Y
page 79) .X
To activate : press any butto n on th e
SmartKey.
or X
Inser t th e SmartKey into th e ignition lock.
KEYLESS-GO and all of it s associated fea-
tures are available again .
KEYLESS-G O star t function
General notes
Bear in min d that th e engin e can be started by
any of th e vehicle occupant s if there is a
SmartKey in th e vehicle.
Changin g th e settings of th e locking
syste m
You can chang e th e setting s of th e locking
system. Thi s means that only th e driver's doo r
and th e fue l filler flap are unlocke d when th e
vehicle is unlocked. Thi s is useful if you fre-
quentl y trave l on your own .X
To change th e setting: press and hol d th e
6 and 7 buttons simultaneousl y fo r approximately six seconds until th e battery
indicator lamp flashes twic e ( Y
page 79) .
If th e setting of th e locking system is changed
within th e signal range of th e vehicle, press-
in g th e 7 or 6 button: R
locks or R
unlocks th e vehicle
The SmartKey no w function s as follows :X
To unlock : press th e 6 butto n once .X
To unlock centrally : press th e 6 but -
to n twice. X
To lock centrally : press th e 7 button.
The KEYLESS-GO function is changed as fol-
lows : X
To unlock th e driver's door: touch th e
inne r surfac e of th e doo r handle on th e
driver's door. X
To unlock centrally : touch th e inne r sur -
fac e of th e doo r handle on th e front-
passenger doo r or th e rea r door.X
To lock centrally : touch th e outer sensor
surfac e on on e of th e doo r handles .X
To restor e th e factory settings: press
and hol d th e 6 and 7 buttons simul-
taneousl y fo r approximately six seconds
until th e battery chec k lamp flashes twic e
( Y
page 79).
Mechanica l key
General notes
If th e vehicle can no longer be locke d or
unlocke d wit h th e SmartKey or KEYLESS-GO ,
use th e mechanical key.
If you use th e mechanical ke y to unloc k and
ope n th e driver's doo r or th e trunk lid, th e
anti-thef t alar m system will be triggere d
( Y
page 73).
There are severa l ways to turn of f th e alarm:X
To deactivate th e alarm wit h th e key :
press th e 6 or 7 butto n on th e key.
or78
SmartKey
Opening and closing

X
Insert the SmartKey into the ignition lock.
or X
To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or X
Lock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically. X
To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key
X
Push release catch C in the direction of
the arrow and at the same time remove
mechanical key D from the SmartKey.
For further information about: R
unlocking the driver's door ( Y
page 85)R
unlocking the trunk ( Y
page 87)R
locking the vehicle ( Y
page 85)
Inserting the mechanical key X
Push mechanical key D completely into
the SmartKey until it engages and release
catch C is back in its basic position. SmartKey battery
Important safety notes
G WARNING
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.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Mercedes-Benz recommends that you have
the battery replaced at a qualified specialist
workshop.
Checking the battery
X
Press the 7 or 6 button.
The battery is working properly if battery
check lamp C lights up briefly.
The battery is discharged if battery check
lamp C does not light up briefly. X
Change the battery ( Y
page 80).SmartKey 79
Opening and closing Z

Problem
Possible causes/consequences and P Solutions
KEYLESS-GO is malfunctioning. X
Lock/unlock the vehicle using the remote control function of
the SmartKey. X
Have the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote
control function: X
Unlock ( Y
page 85) or lock ( Y
page 85) the vehicle using the
mechanical key. X
Have the vehicle and SmartKey checked at a qualified specialist
workshop.
The engine cannot be
started using the
SmartKey. the on-board voltage is too low. X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work: X
Check the starter battery and charge it if necessary
( Y
page 317).
or X
Jump-start the vehicle ( Y
page 319).
or X
Consult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The
SmartKey is in the vehi-
cle. The vehicle is locked. X
Unlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged. X
Check the SmartKey battery ( Y
page 79) and replace it if nec-
essary ( Y
page 80).
If this does not work: X
Start your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves. X
Start your vehicle with the SmartKey in the ignition lock.82
SmartKey
Opening and closing

alarm system. Switch off the alarm
( Y
page 73).
Centrally locking and unlocking the
vehicle from the insideYou can centrally lock or unlock the vehicle
from the inside. This can be useful if you wish
to lock the vehicle before pulling away, for
example.
X
To unlock: press button C .X
To lock: press button D .
If all the doors and the trunk lid are closed,
the vehicle locks.
Meanwhile, the fuel filler flap will not be
locked or unlocked.
You cannot unlock the vehicle centrally from
the inside if the vehicle has been locked with
the SmartKey or KEYLESS-GO.
You can open a door from inside the vehicle
even if it has been locked. You can open the
rear doors from inside the vehicle unless they
are secured by the child-proof lock
( Y
page 64).
If the vehicle has previously been locked with
the SmartKey from the outside, opening a
door from the inside will trigger the anti-theft
alarm system. Switch off the alarm
( Y
page 73). If a locked door is opened from the inside, the
previous unlock status of the vehicle will be
taken into consideration if: R
the vehicle was locked using the locking
button for the central locking, or R
if the vehicle was locked automatically
The vehicle will be fully unlocked if it had pre-
viously been fully unlocked. If only the driver's
door had been previously unlocked, only the
door which has been opened from the inside
is unlocked.
Automatic locking feature
X
To deactivate: press and hold button C
for approximately five seconds until a tone
sounds. X
To activate: press and hold button D for
approximately five seconds until a tone
sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore lock yourself out if: R
the vehicle is being pushed. R
the vehicle is being towed. R
the vehicle is on a roller dynamometer.
You can also switch the automatic locking
function on and off using the on-board com-
puter ( Y
page 222).84
Doors
Opening and closing

X
Touch recessed sensor surface C on the
door handle until the side windows and the
panorama roof with power tilt/sliding
panel are fully closed.
i Make sure you only touch recessed sen-
sor surface C .X
Make sure that all the side windows are
closed. X
Make sure that all the side windows and the
panorama roof with power tilt/sliding
panel are closed.
On vehicles with a panorama roof with power
tilt/sliding panel: X
Touch recessed sensor surface C on the
door handle again until the roller sunblind
of the panorama sliding sunroof closes. X
To interrupt convenience closing:
release recessed sensor surface C on the
door handle.
Resetting the side windows
If a side window can no longer be closed fully,
you must reset it. X
Close all the doors. X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 147).X
Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed ( Y
page 89).X
Hold the switch for an additional second.
If the side window opens again slightly: X
Immediately pull the corresponding switch
on the door control panel until the side win-
dow is completely closed ( Y
page 89).X
Hold the switch for an additional second. X
If the respective side window remains
closed after the button is released, then it
has been set correctly. If this is not the
case, repeat the steps above again. Side windows 91
Opening and closing Z

X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 147).X
Press or pull the W switch in the corre-
sponding direction.
If you press/pull the W switch beyond the
point of resistance, automatic operation is
started in the corresponding direction. You
can stop automatic operation by pressing/
pulling the switch again.
After opening the sliding sunroof, the roller
sunblind closes slightly automatically. This
reduces drafts in the vehicle interior.
If the sliding sunroof is raised at the rear, it
lowers slightly automatically at higher
speeds. The noise level in the vehicle interior
is reduced as a result.
At low speeds it raises again automatically.
You can also temporarily deactivate auto-
matic lowering. To do so, press the W
switch. The sliding sunroof raises again auto-
matically.
You can continue to operate the sliding sun-
roof after switching off the engine or remov-
ing the SmartKey from the ignition lock. This
function remains active for five minutes or
until you open a front door.
The sliding sunroof cannot be opened if a roof
carrier is installed. In order to allow ventila-
tion of the vehicle interior, you can raise the
sliding sunroof.
If contact is made with a roof carrier approved
by Mercedes-Benz, the sliding sunroof lowers
slightly but remains raised at the rear.
Rain-closing feature
The rain-closing feature is only available for
vehicles with a rain sensor.
When the SmartKey is in position 0 in the
ignition lock or is removed, the sliding sunroof
closes automatically: R
if it starts to rain. R
at extreme outside temperatures. R
after six hours. R
if there is a malfunction in the power sup-
ply.
The panorama roof with power tilt/sliding
panel remains raised at the rear in order to
allow ventilation of the vehicle interior.
If the panorama roof with power tilt/sliding
panel is obstructed while being closed by the
rain-closing feature, it opens again slightly.
The rain-closing feature is then deactivated.
The panorama roof with power tilt/sliding
panel does not close if: R
it is raised at the rear. R
it is blocked. R
no rain is falling on the area of the wind-
shield being monitored by the rain sensor.
If the vehicle is under a bridge or in a car-
port, for example, the field of the sensor
may be covered.
Operating the roller sunblind for the
panorama roof with power tilt/sliding
panel
Important safety notes
G WARNING
Parts of the body could become trapped
between the roller sunblind and frame or slid-
ing sunroof during automatic opening or clos-
ing. There is a risk of injury.
When opening or closing, make sure that no
body parts are in the sweep of the roller sun-
blind.
If somebody becomes trapped: R
release the switch immediately, or R
during automatic operation, push the
switch briefly in any direction
The opening or closing procedure will be stop-
ped.
The roller sunblind shields the vehicle interior
from sunlight. The roller sunblind can only be
opened and closed when the panorama roof
with power tilt/sliding panel is closed.94
Panorama roof with power tilt/sliding panel
Opening and closing

The seat belt should: R
fit snugly across your body R
be routed across the middle of your
shoulder R
be routed in your pelvic area across the
hip joints X
Before starting off, adjust the rear-view mir-
ror and the exterior mirrors ( Y
page 107) in
such a way that you have a good view of
road and traffic conditions. X
Vehicles with a memory function: save
the seat and exterior mirror settings
( Y
page 110).
Seats
Important safety notes
G WARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The seats can still be adjusted when there is
no SmartKey in the ignition lock.
G WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
( Y
page 48) and "Children in the vehicle"
( Y
page 58).
G WARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of
the vehicle. There is a risk of an accident. Always make sure that the driver's seat is
engaged before starting the vehicle.
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steering wheel or mirrors R
fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
! To avoid damage to the seats and the seat
heating, observe the following information: R
keep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible. R
if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats. R
clean the seat covers as recommended;
see the "Interior care" section. R
do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible. R
when the seat heating is in operation, do
not cover the seats with insulating mate- Seats 101
Seats, steering wheel and mirrors Z

Switching the seat heating on/off
Switching on/off
G WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high tempera-
tures may be affected or they may even suffer
burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level 3 to level 2 after approximately
eight minutes.
The system automatically switches down
from level 2 to level 1 after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1 . X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 147).X
To switch on: press button C repeatedly
until the desired heating level is set. X
To switch off: press button C repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off. Seats 105
Seats, steering wheel and mirrors Z

Mirrors
Rear-view mirror X
Anti-glare mode: flick anti-glare lever C
forwards or back.
Exterior mirrors
Adjusting the exterior mirrors
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steering wheel or mirrors R
fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder. X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 147). X
Press button C for the left-hand exterior
mirror or button D for the right-hand exte-
rior mirror.
The indicator lamp in the corresponding
button lights up in red.
The indicator lamp goes out again after
some time. You can adjust the selected
mirror using adjustment button

X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 147).X
Briefly press button C .
Both exterior mirrors fold in or out.
i Make sure that the exterior mirrors are
always folded out fully while driving. They
could otherwise vibrate.
i If you are driving faster than 30 mph
(47 km/ h) , you can no longer fold in the
exterior mirrors.
Setting the exterior mirrors
This function is only available in Canada.
If the battery has been disconnected or com-
pletely discharged, the exterior mirrors must
be reset. The exterior mirrors will otherwise
not fold in when you select the "Fold in mir-
rors when locking" function in the on-board
computer ( Y
page 223).X
Turn the SmartKey to position 1 in the igni-
tion lock ( Y
page 147).X
Briefly press button C .
Folding the exterior mirrors in or out
automatically
This function is only available in Canada.
If the "Fold in mirrors when locking" function
is activated in the on-board computer
( Y
page 223): R
the exterior mirrors fold in automatically as
soon as you lock the vehicle from the out-
side. R
the exterior mirrors fold out again automat-
ically as soon as you unlock the vehicle and
then open the driver's or front-passenger
door.
i If the exterior mirrors have been folded in
manually, they do not fold out.
Exterior mirror pushed out of position If an exterior mirror has been pushed out of
position, proceed as follows: X
Vehicles without electrically folding
exterior mirrors: move the exterior mirror
into the correct position manually. X
Vehicles with electrically folding exte-
rior mirrors: press and hold mirror-folding
button ( Y
page 107) until you hear a click
and then the mirrors engage in position.
The mirror housing is engaged again and
you can adjust the exterior mirrors as usual
( Y
page 107).
Automatic anti-glare mirrors
G WARNING
Electrolyte may escape if the glass in an auto-
matic anti-glare mirror breaks. The electrolyte
is harmful and causes irritation. It must not
come into contact with your skin, eyes, res-
piratory organs or clothing or be swallowed.
There is a risk of injury.
If you come into contact with the electrolyte,
observe the following: R
Rinse off the electrolyte from your skin
immediately with water. R
Immediately rinse the electrolyte out of
your eyes thoroughly with clean water. R
If the electrolyte is swallowed, immediately
rinse your mouth out thoroughly. Do not
induce vomiting.108
Mirrors
Seats, steering wheel and mirrors