2015 MERCEDES-BENZ GLC SUV lock

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 the windscreen
wiper movement. The wiper motor has been deactivated.
X For safety reasons, you should remove the key from the ignition
lock.
or
X Switch off the engine using the Start/Stop button and open the
driver's door.
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
workshop. The windscreen washer
fluid from the spray
nozzles no longer hits
the centre of the wind-
screen. The spray nozzles are misaligned.
X Have the spray nozzles adjusted at a qualified specialist work-
shop. 154
Windscreen wipersLights and windscreen wipers

mode. If necessary, activate this function
(Y
page 162).
R Set the temperature to 22 †.
R Only use the "Windscreen demisting" func-
tion briefly until the windscreen is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odours or
when in a tunnel. The windows could oth-
erwise mist up as no fresh air is drawn into the vehicle in air-recirculation mode.
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 only be activated or deac-
tivated with the ignition switched off. The
residual heat function is deactivated when
the ignition is switched on.
DYNAMIC SELECT switch You can choose between various drive pro-
grams with the DYNAMIC SELECT switch
(Y
page 195).
If you have selected drive program E:
R the cooling output is reduced when cooling
R when heating, the electrical heater booster
is deactivated and heat output is reduced
as a result
R the rear window heating running time is
reduced
If you have selected drive program C,Sor S+,
the current climate settings are maintained.
ECO start/stop function During automatic engine switch-off, the cli-
mate control only operates at a reduced capa-
city. If you require the full climate control out-
put, you can switch off the ECO start/stop
function by pressing the ECO button
(Y page 193). Operating the climate control system
Switching the climate control on/off
General notes When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could mist up.
Therefore, only switch off climate control
briefly.
Switch on climate control primarily using the à rocker switch (Y page 164).
Activating/deactivating X
Turn the key to position 2in the ignition
lock (Y page 187).
X To switch on: press thetor!
rocker switch up or down.
The Audio 20 or COMAND Online climate
control menu opens.
X Switch on climate control via the air-condi-
tioning function bar; see the separate oper- ating instructions.
or
X Set the airflow to level 1 or higher using the
H rocker switch.
X To switch off: press thetor!
rocker switch up or down.
The Audio 20 or COMAND Online climate
control menu opens.
X Switch off climate control via the air-con-
ditioning function bar; see the separate
operating instructions.
or
X Set the airflow to level 0 using the H
rocker switch. Activating/deactivating cooling with
air dehumidification
General notes If you deactivate the "Cooling with air dehu-
midification" function, the air inside the vehi- cle will not be cooled. The air inside the vehi- 162
Operating the climate control systemClimate control

Automatic control
X
Turn the key to position 2in the ignition
lock (Y page 187).
X Set the desired temperature using the
w rocker switch on the front control
unit.
or X Set the desired temperature using
Audio 20 or COMAND Online (see the sep-
arate operating instructions).
X To activate: press theÃrocker switch
up or down.
The indicator lamp above the Ãrocker
switch lights up.
X To switch to manual operation: press the
H rocker switch up or down.
or X Set the airflow using Audio 20 or COMAND
Online (see the separate operating instruc-
tions).
or
X Press the upper or lower section of the
_ rocker switch.
or
X Set the air distribution using Audio 20 or
COMAND Online (see the separate operat- ing instructions).
The indicator lamp above the Ãrocker
switch goes out.
In automatic mode, if you adjust the airflow or air distribution manually, the indicator lamp
above the Ãrocker switch goes out. The
function which has not been changed man-
ually, however, continues to be controlled
automatically. When the manually set func-
tion switches back to automatic mode, the
indicator lamp above the Ãrocker switch
lights up again. Setting the climate mode
This function is only available with
THERMOTRONIC automatic climate control. In automatic mode you can select the follow-
ing airflow settings for the driver's and front-
passenger areas:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUS Elow airflow, slightly warmer and
draught-free setting
X To set: set the climate mode using Audio
20 or COMAND Online (see the separate
operating instructions). Setting the temperature
THERMATIC automatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X Turn the key to position 2in the ignition
lock (Y page 187).
X To increase or reduce: press thew
rocker switch up or down.
or
X Set the temperature using Audio 20 or
COMAND Online (see the separate operat-
ing instructions).
Only change the temperature setting in
small increments. Start at 22 †.
THERMOTRONIC automatic climate
control General notes
THERMOTRONIC automatic climate control zonesOperating the climate control system
165Climate control

You can select different temperature settings
for the driver's and front-passenger sides as
well as for the rear compartment.
Setting the temperature in the front com-
partment using the front control panel
X Turn the key to position 2in the ignition
lock (Y page 187).
X To increase or reduce: press thew
rocker switch up or down.
or X Set the temperature using Audio 20 or
COMAND Online (see the separate operat- ing instructions).
Only change the temperature setting in
small increments. Start at 22 †.
Setting the temperature in the rear com-
partment using the front control panel
X Turn the key to position 2in the ignition
lock (Y page 187).
X Press the upper or lower section of
the ! rocker switch.
The climate control menu in Audio 20 or
COMAND Online opens.
X Select the "Synchronisation" function (see
separate operating instructions).
The temperature setting for the driver's
side is adopted for the front-passenger side
and the rear compartment.
X Set the temperature with the wrocker
switch on the front control panel.
or X Set the temperature using Audio 20 or
COMAND Online (see the separate operat- ing instructions).
Only change the temperature setting in
small increments. Start at 22 †.
Setting the temperature in the rear com-
partment using the rear control panel
X Turn the key to position 2in the ignition
lock (Y page 187).
X To increase or reduce: press the upper or
lower section of the wrocker switch on
the rear control panel (Y page 160).Only change the temperature setting in
small increments. Start at 22 †.
The set temperature appears on the rear-
compartment display. Setting the air distribution
Air distribution settings ¯
Directs the airflow through the demis-
ter vents
P Directs the airflow through the centre
and side air vents
O Directs the airflow through the foot-
well air vents
S Directs the airflow through the centre
and side air vents as well as the foot-
well air vents
a Directs the airflow through the foot-
well and demister vents
_ Directs the airflow through the demis-
ter vents, 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 demis-
ter vents
W Sets the air distribution to automatic
Setting THERMOTRONIC automatic climate control:
you can set the air distribution separately for
the driver's and front-passenger side.
X Turn the key to position 2(Y page 187).
X Press the _rocker switch up or down.
The various air distribution settings appear in Audio 20 or COMAND Online.
X Press and hold the _rocker switch
upwards until the desired position is
reached.
or
X Set the air distribution using Audio 20 or
COMAND Online (see the separate operat- ing instructions). 166
Operating the climate control systemClimate control

Setting the airflow
THERMATIC automatic climate control X
Turn the key to position 2in the ignition
lock (Y page 187).
X To increase or reduce: press theH
rocker switch up or down.
or
X Set the airflow using Audio 20 or COMAND
Online (see the separate operating instruc-
tions).
THERMOTRONIC automatic climate
control Setting the front-compartment airflow
You can set the airflow separately for the
front and rear compartment.
X Turn the key to position 2in the ignition
lock (Y page 187).
X To increase or reduce: press theH
rocker switch up or down.
or
X Set the airflow using Audio 20 or COMAND
Online (see the separate operating instruc-
tions).
Setting the rear-compartment airflow X Turn the key to position 2in the ignition
lock (Y page 187).
X Press the upper or lower section of
the ! rocker switch.
The Audio 20 or COMAND Online climate
control menu opens.
X Select the "Synchronisation" function in
the climate control menu (see separate
operating instructions).
The airflow setting for the front area is
adopted for the rear compartment. Setting the rear compartment airflow
using the rear control panel
X Turn the key to position 2in the ignition
lock (Y page 187).
X To increase or reduce: press the upper or
lower section of the KorI rocker
switch on the rear control panel.
The selected airflow level appears in the
rear display. Activating/deactivating the synchro-
nisation function
General notes Climate control can be set centrally using the
synchronisation function. The temperature
setting is adopted for the front-passenger
side. For THERMOTRONIC automatic climatecontrol, the temperature setting is adopted
for the front-passenger side and rear com-
partment.
Activating/deactivating THERMATIC automatic climate control (2-
zone) without auxiliary heating
X Press the 0rocker switch up or down.
The indicator lamp above the 0rocker
switch lights up or goes out.
or X Activate or deactivate the synchronisation
function using Audio 20 or COMAND Online
(see the separate operating instructions).
The synchronisation function is deactivated if the settings for the front-passenger side are
changed.
THERMATIC automatic climate control (2-
zone) with auxiliary heating
X Activate or deactivate the synchronisation
function using Audio 20 or COMAND Online
(see the separate operating instructions).
The synchronisation function is deactivated if
the settings for the front-passenger side are
changed. Operating the climate control system
167Climate control

THERMOTRONIC automatic climate con-
trol
X Activate or deactivate the synchronisation
function using Audio 20 or COMAND Online
(see the separate operating instructions).
The synchronisation function is deactivated: R if the settings for the front-passenger side
are changed
R if the settings for the rear compartment are
changed Demisting the windscreen
General notes You can use this function to defrost the wind-
screen or to demist the inside of the wind-
screen and the front side windows.
Switch off the windscreen demisting function as soon as the windscreen is clear again.
Switching the "Windscreen demisting"
function on or off X
Turn the key to position 2in the ignition
lock (Y page 187).
X To switch on: press the¬rocker
switch on the front control unit up or down.
The indicator lamp above the ¬rocker
switch lights up. The current climate con-
trol settings are deactivated.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windscreen and
front side windows
R air-recirculation mode off
i If necessary, the "Cooling with air dehu-
midification" function is activated. In this
case, the indicator lamp above the
¿ rocker switch remains switched off. X
To switch off: press the¬rocker
switch up or down.
The indicator lamp above the ¬rocker
switch goes out. The previous settings are
reactivated. Air-recirculation mode
remains deactivated.
or X Press the upper or lower section of the
à rocker switch. Demisting the windows
Windows misted up on the inside X
Activate the "Cooling with air dehumidifi-
cation" function with the ¿rocker
switch.
or
X Activate the cooling with air dehumidifica-
tion function via Audio 20 or COMAND
Online (see the separate operating instruc-
tions).
For THERMOTRONIC automatic climate
control with auxiliary heating, the "Cooling
with air dehumidification" function can only be activated using Audio 20 or COMAND
Online.
X Switch on automatic mode using the Ã
rocker switch.
X If the windows continue to mist up, activate
the windscreen demisting function using
the ¬ rocker switch.
i You should only select this setting until
the windscreen is clear again.
Windows misted up on the outside X
Activate the windscreen wipers.
X Switch on automatic mode using the Ã
rocker switch.
i If you clean the windows regularly, they
do not mist up so quickly. 168
Operating the climate control systemClimate control

Rear window heating
General notes The rear window heating has a high current
draw. You should therefore switch it off as
soon as the window is clear. It otherwise
switches off automatically after several
minutes.
If the battery voltage is too low, the rear win-
dow heating may switch off.
Switching the sound on/off X
Turn the key to position 2in the ignition
lock (Y page 187).
X Press the ¤rocker switch up or down.
The indicator lamp above the ¤rocker
switch lights up or goes out. Operating the climate control system
169Climate control

Problems with the rear window heating
Problem
Possible causes/consequences and
M
MSolutions The rear window heat-
ing has switched off
prematurely or cannot
be activated. The battery has not been sufficiently charged.
X Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heat- ing can be activated again. Switching air-recirculation mode
on/off
General notes You can also temporarily deactivate the flow
of fresh air manually if unpleasant odours are
entering the vehicle from outside. The air
already inside the vehicle will then be recir-
culated.
If you activate air-recirculation mode, the win-
dows can mist up more quickly, in particular
at low temperatures. Only use air-recircula-
tion mode briefly to prevent the windows
misting up.
Activating/deactivating X
Turn the key to position 2in the ignition
lock (Y page 187).
X To activate: press thegrocker switch
up or down.
The indicator lamp above the grocker
switch lights up.
Air-recirculation mode is activated automati-
cally: R at high outside temperatures
R at high levels of pollution (THERMOTRONIC
automatic climate control only)
R in a tunnel (vehicles with a navigation sys-
tem only)
The indicator lamp above the grocker
switch is not lit when automatic air-recircula- tion mode is activated. Outside air is added
after approximately 30 minutes. X
To deactivate: press thegrocker
switch up or down.
The indicator lamp above the grocker
switch goes out.
Air-recirculation mode is deactivated auto-
matically:
R after approximately five minutes at outside
temperatures below approximately 5 †
R after approximately five minutes if "Cooling
with air dehumidification" is deactivated
R after approximately 30 minutes at outside
temperatures above approximately 5 † if
the "Cooling with air dehumidification"
function is activated Convenience opening or closing using
the air-recirculation button G
WARNING
When the convenience closing feature is oper- ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts of the body are in the closing area. G
WARNING
During convenience opening parts of the body could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury. 170
Operating the climate control systemClimate control