ignition MERCEDES-BENZ GLA 2016 User Guide

Useful information
i This Operator's Manual describes all
models and all standard and optional equip-
ment 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.
i Read the information on qualified special-
ist workshops ( Y
page 25).
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
magnetic fields. Otherwise, the remote
control function could be affected.
Strong magnetic fields can occur in the
vicinity 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 cargo com-
partment. 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 tailgate

X
To unlock the tailgate: pull tailgate han-
dle C .
Deactivating and activating If you do not intend to use the vehicle for a
longer period of time, you can deactivate KEY-
LESS-GO. The SmartKey will then use very lit-
tle power, thereby conserving battery power.
For the purposes of activation/deactivation,
the vehicle must not be nearby. X
To deactivate: press the 7 button on
the SmartKey twice in rapid succession.
The battery check lamp of the SmartKey
flashes twice briefly and lights up once,
then KEYLESS-GO is deactivated
( Y
page 80). X
To activate: press any button on the
SmartKey.
or X
Insert the SmartKey into the ignition lock.
KEYLESS-GO and all of its associated fea-
tures are available again.
KEYLESS-GO start function
General notes
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a
SmartKey in the vehicle. Changing the settings of the locking
system You can change the settings of the locking
system. This means that only the driver's door
and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own. X
To change the setting: press and hold the
6 and 7 buttons simultaneously for
approximately six seconds until the battery
indicator lamp flashes twice ( Y
page 80).
If the setting of the locking system is changed
within the signal range of the vehicle, press-
ing the 7 or 6 button: R
locks or R
unlocks the vehicle
The SmartKey now functions as follows: X
To unlock: press the 6 button once.X
To unlock centrally: press the 6 but-
ton twice. X
To lock centrally: press the 7 button.
The KEYLESS-GO function is changed as fol-
lows: X
To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door. X
To unlock centrally: touch the inner sur-
face of the door handle on the front-
passenger door or the rear door. X
To lock centrally: touch the outer sensor
surface on one of the door handles. X
To restore the factory settings: press
and hold the 6 and 7 buttons simul-
taneously for app roximately six seconds
u
ntil the battery check lamp flashes twice
( Y
page 80).78
SmartKey
Opening and closing

Mechanical key
General notes If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered
( Y
page 73).
There are several ways to turn off the alarm: X
To deactivate the alarm with the key:
press the 6 or 7 button on the key.
or 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 84)R
unlocking the cargo compartment
( Y
page 89) 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. 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 84) 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 329).
or X
Jump-start the vehicle ( Y
page 331).
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 80) 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

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 tailgate 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 230).
Unlocking the driver's door (mechan-
ical key)
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered ( Y
page 73).84
Doors
Opening and closing

The opening dimensions of the tailgate can be
found in the "Vehicle data" section
( Y
page 383).
Opening and closing automatically You can open the tailgate from the driver's
seat when the vehicle is stationary and
unlocked.
It is only possible to close the tailgate from
the driver's seat on vehicles with the EASY-
PACK tailgate.
X
To open: pull remote operating switch for
the tailgate C until the tailgate opens.X
To close: turn the SmartKey to position 1
or 2 in the ignition lock ( Y
page 149).X
Press and hold remote operating switch for
the tailgate C until the tailgate is com-
pletely closed.
Limiting the opening angle of the tail-
gate
General notes
! Make sure there is sufficient clearance to
open the tailgate fully when setting the
opening angle. The tailgate could otherwise
be damaged. Ideally, set the opening angle
outside.
You can limit the opening angle of the tail-
gate. This could be useful, for example, if
there is insufficient space above the tailgate.
It is possible to limit the tailgate in the top half
of its opening range. To open the tailgate fully, pull the handle on
the outside of the tailgate again after it has
stopped automatically. This does not delete
the stored position.
Activating X
To open the tailgate: pull the handle on
the tailgate. X
To stop the opening process at the
desired position: R
press the closing button in the tailgate, or R
pull the handle on the outside of the tail-
gate again, or R
press the tailgate button on the key. X
To store the position: press and hold the
closing button in the tailgate until two short
tones sound.
The opening angle limiter is activated. The
tailgate will now stop in the stored position
when opening.
Deactivating X
Press and hold the closing button in the
tailgate until you hear a short tone.
Emergency release
General notes
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
( Y
page 383).
If the tailgate can no longer be unlocked: R
using the SmartKey, or R
using the remote operating switch in the
door control panel:
Use the emergency release on the inside of
the tailgate.Cargo compartment 89
Opening and closing Z

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 149).X
Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed ( Y
page 91).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 91).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 93
Opening and closing Z

X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 149).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.96
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 109) 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 112).
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 103
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 149).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 107
Seats, steering wheel and mirrors Z