2017 MERCEDES-BENZ GLA SUV Owners Manual

X
Slide catch ;in the direction of arrow =
until it engages in the locking position with a
noticeable click.
X Make sure that the wiper blade sits correctly.
X Fold the wiper arm back onto the windscreen. X
Remove protective film :of the service indi-
cator on the tip of the wiper blade.
If the colour of the service indicator changes
from black to yellow, the wiper blades should be replaced.
i The duration of the colour change varies
depending on the usage conditions. Replacing the rear window wiper blade Removing a wiper blade
X
Vehicles without KEYLESS-GO or KEY-
LESS-GO start function: remove the key
from the ignition lock.
X Vehicles with KEYLESS-GO or KEYLESS-
GO start function: switch off the engine.
X Fold wiper arm ?away from the rear window.
X Press both release clips ;.
X Fold wiper blade :in the direction of
arrow =away from wiper arm ?.
X Remove wiper blade :in the direction of
arrow A.
Fitting a wiper blade X
Position new wiper blade :with recess B
on lug A.
X Fold wiper blade :in the direction of arrow
= onto the wiper arm until retaining clips ;
engage in bracket ?.
X Make sure that wiper blade :is seated cor-
rectly.
X Fold the wiper arm back onto the rear win-
dow. 126
Windscreen wipersLights and windscreen wipers

Problems with the windscreen wipers
Problem
Possible causes/consequences and
M
MSolutions The windscreen wipers
are jammed. Leaves or snow, for example, may be obstructing windscreen wiper
movement. The wiper motor has been deactivated.
X For safety reasons, you should remove the key from the ignition
lock.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on. The windscreen wipers
fail completely. The windscreen wiper drive is malfunctioning.
X Select another wiper speed on the combination switch.
X Have the windscreen wipers checked at a qualified specialist work-
shop. The windscreen washer
fluid from the spray noz-
zles no longer hits the
centre of the wind-
screen. The spray nozzles are misaligned.
X Have the spray nozzles adjusted at a qualified specialist workshop. Windscreen wipers
127Lights and windscreen wipers Z

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. Otherwise, the windows could
mist up.
To prevent the windows from misting up:
R switch off climate control only briefly
R activate air-recirculation mode only briefly
R activate the "Cooling with air dehumidifica-
tion" function
R activate the "Windscreen demisting" function
briefly, if required
The air-conditioning system or THERMOTRONIC automatic climate control regulates the temper-ature and the humidity of the vehicle interior andfilters undesirable substances from the air.
The air-conditioning system or THERMOTRONIC automatic climate control can only be operatedwhen the engine is running. Optimum operation
is only achieved with the side windows and pan- orama sliding sunroof closed.
The "Residual heat" function can only be
switched on or off if the ignition is switched off
(Y page 137).
Always keep the ventilation flaps behind the
side panelling clear (Y page 122). 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 98). 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. With THERMOTRONIC automatic
climate control, gaseous pollutants and
odours will also be reduced. 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 Service Book-
let. As this depends on environmental condi-
tions, e.g. heavy air pollution, the interval may be shorter than stated in the Service Booklet.
i Vehicles with auxiliary heating:
Under
certain environmental conditions, the resid-
ual heat function may be activated automati-
cally an hour after the ignition key has been
removed in order to dry the automatic climate control. The blue LED on the rocker switch in
the centre console lights up when the active
function to dry the automatic climate control is on. The vehicle is then ventilated for
30 minutes.
Vehicles without auxiliary heating: Under
certain environmental conditions, the resid-
ual heat function may be activated automati-
cally an hour after the ignition key has been
removed in order to dry the automatic climate control. The vehicle is then ventilated for
30 minutes. 128
Overview of climate control systemsClimate control

Control panel for air-conditioning system
:
To set the temperature (Y page 133)
; To demist the windscreen (Y page 134)
= To set the air distribution (Y page 133)
? To activate/deactivate air-recirculation mode (Y page 135)
A To set the airflow (Y page 134)
B To activate/deactivate cooling with air dehumidification (Y page 132)
C To switch the rear window heating on/off (Y page 135)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of tips and rec-
ommendations for optimum use of the air-con-
ditioning system.
R Switch on the air-conditioning system by turn-
ing control knob Aclockwise to the desired
position (except position 0).
R Set the temperature to 22 †.
R Recommendation for avoiding misted
windows at low exterior temperatures or
in rain: switch on the ¿cooling with dehu-
midification function (Y page 132).
Set air distribution to ¯and if possible
switch off PandO( Ypage 133).
Deactivate air-recirculation mode e
(Y page 135).
Set airflow control Ato a setting between 3
and 6(Y page 134). R
Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control Ato a setting between 3and
6 (Y page 134).
R Recommendation for a constant vehicle
interior temperature: set airflow controlA
to a setting between 1and 3(Y page 134).
R Recommendation for air distribution in
winter: select the Oand¯ settings
(Y page 133).
Recommendation for air distribution in
summer: select the PorP and¯
settings (Y page 133).
R Use the "Windscreen demisting" function only
briefly until the windscreen is clear again.
R Use the "Air-recirculation mode" function only
briefly, e.g. if there are unpleasant outside
odours or when in a tunnel. The windows
could otherwise mist up as no fresh air is
drawn into the vehicle in air-recirculation
mode.
R If you change the settings of the climate con-
trol system, the climate status display Overview of climate control systems
129Climate control

appears for approximately three seconds at
the bottom of the screen in the multimedia
system display; see separate operating
instructions. You will see the current settings
of the various climate control functions.
DYNAMIC SELECT button (except
Mercedes-AMG vehicles) You can choose between various drive programs
with the DYNAMIC SELECT button
(Y page 151).
If you have selected drive program E:
R when heating, the electrical heater booster is
deactivated and in the warming-up phase
heat output is reduced
R the rear window heating running time is
reduced Depending on the configuration, the climate set-
tings can also be influenced in drive program I.
If you have selected drive program Cor S, the
climate settings are not affected.
ECO start/stop function During automatic engine stop, the climate con-
trol operates only at a reduced capacity. If you
require the full climate control output, you can
switch off the ECO start/stop function by press-
ing the ECO button (Y page 149).Control panel for THERMOTRONIC automatic climate control (2-zone)
:
To set the temperature, left (Y page 133)
; To set climate control to automatic mode (Y page 132)
= To demist the windscreen (Y page 134)
? To increase the airflow (Y page 134)
A To set the air distribution (Y page 133)
B Display
C To activate/deactivate air-recirculation mode (Y page 135)
D To switch the climate control on/off (Y page 131)
E To set the temperature, right (Y page 133)
F To switch the residual heat on/off (Y page 137)
G To activate/deactivate cooling with air dehumidification (Y page 132)
H To reduce the airflow (Y page 134)130
Overview of climate control systemsClimate control

I
To switch the rear window heating on/off (Y page 135)
J To switch the ZONE function on/off (Y page 134)Information on operating
THERMOTRONIC automatic climate
control
Automatic climate control The following contains instructions and recom-
mendations to enable you to get the most out of
your THERMOTRONIC automatic climate con-
trol.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps in the
à and¿ buttons light up.
R Set the temperature to 22 †.
R Use the "Windscreen demisting" function only
briefly until the windscreen is clear again.
R Use the "Air-recirculation mode" function only
briefly, e.g. if there are unpleasant outside
odours or when in a tunnel. The windows
could otherwise mist up as no fresh air is
drawn into the vehicle in air-recirculation
mode.
R Use the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side as well. The indicator
lamp in the ábutton goes out.
R Use the "Residual heat" function if you want to
heat or ventilate the vehicle interior when the
ignition is switched off. The "Residual heat"
function can be switched on or off only with
the ignition switched off.
R If you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display; see separate operating
instructions. You will see the current settings of the various climate control functions.
DYNAMIC SELECT button (except
Mercedes-AMG vehicles) You can choose between various drive programs
with the DYNAMIC SELECT button
(Y page 151). If you have selected drive program
E:
R when heating, the electrical heater booster is
deactivated and in the warming-up phase
heat output is reduced
R the rear window heating running time is
reduced
Depending on the configuration, the climate set-
tings can also be influenced in drive program I.
If you have selected drive program Cor S, the
climate settings are not affected.
ECO start/stop function During automatic engine stop, the climate con-
trol operates only at a reduced capacity. If you
require the full climate control output, you can
switch off the ECO start/stop function by press-
ing the ECO button (Y page 149). Operating the climate control sys-
tems
Switching the climate control on/off
General notes When climate control is switched off, the air
supply and air circulation are also switched off.
The windows could mist up. Therefore, switch
off climate control only briefly.
Air-conditioning system X
Turn the key to position 2in the ignition lock
(Y page 144).
X To switch on: turn controlAclockwise to
the desired position (except position 0)
(Y page 129).
X To switch off: turn controlAanti-clockwise
to position 0(Y page 129). Operating the climate control systems
131Climate control

THERMOTRONIC automatic climate
control X
Turn the key to position 2in the ignition lock
(Y page 144).
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
air 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. 132
Operating the climate control systemsClimate control

Setting climate control to automatic
mode X
Turn the key to position 2in the ignition lock
(Y page 144).
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
X To switch to manual mode: press theÉ
or Ë button.
or
X Press the KorI button.
The indicator lamp in the Ãbutton goes
out. Automatic air distribution and airflow are deactivated. Setting the temperature
Air-conditioning system You can set the temperature for the entire vehi-
cle. The set temperature is automatically main-
tained at a constant level.
X Turn the key to position 2in the ignition lock
(Y page 144).
X To increase or reduce: turn control:anti-
clockwise or clockwise (Y page 129). Change
the temperature setting only in small incre-
ments. Start at 22 †.
THERMOTRONIC automatic climate
control Different temperatures can be set for the driv-
er's and front-passenger sides. The set temper- ature is automatically maintained at a constant
level.
X Turn the key to position 2in the ignition lock
(Y page 144).
X To increase or decrease: turn control:or
E anti-clockwise or clockwise (Y page 130).
Change the temperature setting only in small
increments. Start at 22 †. Setting the air distribution
Air-conditioning system Air distribution settings
¯ Directs the airflow through the demister
vents
P Directs the airflow through the centre
and side air vents
O Directs the airflow through the footwell
air vents
i You can also activate several of the air dis-
tribution settings simultaneously. In order to
do this, press several of the air distribution
buttons. The air is then routed through differ-
ent air vents.
i Regardless of the air distribution setting,
airflow is always directed through the side air vents. The side air vents can only be closed if
the adjusters are turned clockwise until they
engage.
Setting the air distribution X Turn the key to position 2in the ignition lock
(Y page 144).
X Press one or more of the P,O,¯
buttons.
The corresponding indicator lamp comes on.
THERMOTRONIC automatic climate
control Air distribution settings
¯ Directs the airflow through the demister
vents
P Directs the airflow through the centre
and side air vents
O Directs the airflow through the footwell
air vents
S Directs the airflow through the centre
and side air vents as well as the footwell
air vents
b Directs the airflow through the centre
and side air vents as well as the demister
vents
a Directs the airflow through the footwell
and demister vents
_ Directs the airflow through the demister
vents, the centre and side air vents as
well as the footwell air vents Operating the climate control systems
133Climate control