2016 MERCEDES-BENZ GLS SUV cooling

1, 2, 3 ...
4ETS (Electronic Traction System) see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 227
12 V socket
see Sockets
360° camera
Cleaning .........................................3 41
Display in the multimedia system .. 214
Function/notes ............................ .212 A
ABS (Anti-lock Braking System) Display message ............................ 259
Function/notes ................................ 69
Important safety notes .................... 69
Warning lamp ................................. 293
Accident
Automatic measures after an acci-
dent ................................................. 57
Activating media mode
General notes ................................ 310
Activating/deactivating air-recir-
culation mode ................................... .138
Activating/deactivating cooling
with air dehumidification ................. 135
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 250
Display message ............................ 279
Function/notes ............................ .222
Towing a trailer .............................. 224
Active Brake Assist
Activating or deactivating .............. 250
Display message ............................ 264
Function/notes ................................ 70
Active Brake Assist with cross-
traffic function
Activating or deactivating .............. 250
Display message ............................ 265
Function/notes ................................ 75
Important safety notes .................... 76
Warning lamp ................................. 301 Active Curve System
Display message ............................ 276
Function/notes ............................ .198
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 251
Display message ............................ 278
Function/notes ............................ .224
Towing a trailer .............................. 227
Active light function ......................... 123
ADAPTIVE BRAKE ................................. 75
Adaptive Brake Assist
Function/notes ................................ 71
Adaptive brake lights .......................... 72
Adaptive Damping System
Function/notes ............................ .200
Adaptive Highbeam Assist Plus
Display message ............................ 271
Function/notes ............................ .124
Switching on/off ........................... 124
AdBlue ®
Display message ............................ 274
Filling capacity ............................... 385
Important safety notes .................. 384
Topping up ..................................... 166
Additives (engine oil) ........................ 385
Address book
See also Digital Owner's Manual ... 303
Adjusting the headlamp range ......... 122
Adjusting the volume
COMAND Online ............................ 304
Adjusting volume
Audio 20 ........................................ 304
ADS (Adaptive Damping System)
Function/notes ............................ .197
Air conditioning
General notes ................................ 131
Air filter (white display message) .... 274
AIR FLOW .......................................... .136
Air pressure
see Tyre pressure
Air vents
Glove compartment ....................... 145
Important safety notes .................. 144
Rear ............................................... 145
Setting .......................................... .144
Setting the centre air vents ........... 144 4
Index

Driving tips .................................... 173
High-performance brake system .... 174
Hill start assist ............................... 151
Important safety note
s.................. 173
Parking brake ................................ 170
Warning lamp ................................. 292
Breakdown
Where will I find...? ........................ 345
see Flat tyre
see Towing away
Brightness control (instrument
cluster lighting) ................................... 35
Bulbs
see Replacing bulbs C
Calling up a fault see Display messages
Car
see Vehicle
Car wash (care) ................................. 338
Care
360° camera ................................. 341
Automatic car wash ....................... 338
Carpets .......................................... 344
Display ........................................... 342
Exhaust pipe .................................. 342
Exterior lighting ............................. 341
Gear or selector lever .................... 343
High-pressure cleaner .................... 339
Interior ........................................... 342
Matt paintwork .............................. 339
Note s............................................. 337
Paint .............................................. 339
Plastic trim .................................... 343
Reversing camera .......................... 341
Roof lining ...................................... 344
Seat belt ........................................ 344
Seat cove r..................................... 343
Sensors ......................................... 341
Side running board ........................ 341
Steering wheel ............................... 343
Trim pieces .................................... 343
Washing by hand ........................... 338
Wheels ........................................... 340
Windows ........................................ 340
Wiper blades .................................. 340 Wooden trim .................................. 343
CD
See also Digital Owner's Manua l... 303
CD player (on-board computer) ........ 247
Central locking
Automatic locking (on-board com-puter) ............................................. 253
Locking/unlocking (key) .................. 81
Centre console
Lower section .................................. 38
Upper section .................................. 37
Child
Restraint system .............................. 58
Child seat
Forward-facing restraint system ...... 62
ISOFIX .............................................. 59
On the front-passenger seat ............ 61
Rearward-facing restraint system .... 62
Recommendations ........................... 65
Suitable positions ............................ 62
Top Tether ....................................... 60
Child-proof locks
Important safety notes .................... 67
Rear doors ....................................... 67
Cigarette lighter ................................ 323
Cleaning
Mirror turn signal ........................... 341
Trailer tow hitch ............................. 342
Climate control
Auxiliary heating/ventilation .......... 140
Controlling automaticall y............... 135
Convenience opening/closing
(air-recirculation mode) ................. 139
Cooling with air dehumidification .. 135
Demisting the windows .................. 138
Demisting the windscreen ............. 137
Indicator lamp ................................ 135
Ionisation ....................................... 140
Notes on using the automatic cli-
mate control .................................. 134
Overview of systems ...................... 131
Problem with the rear window
heating .......................................... 138
Problems with cooling with air
dehumidification ............................ 135
Rear control panel ......................... 132
Rear control panel
(THERMOTRONIC with additional Index
7

rear-compartment climate con-
trol) ................................................ 133
Setting the air distribution ............. 136
Setting the air vents ...................... 144
Setting the airflow ......................... 137
Setting the climate mode (AIR
FLOW) ............................................ 136
Setting the temperature ............... .136
Switching air-recirculation mode
on/off ............................................ 138
Switching on/off ........................... 135
Switching residual heat on/off ...... 140
Switching the rear window heat-
ing on/off ...................................... 138
Switching the ZONE function
on/off ............................................ 137
THERMATIC automatic climate
control (2-zone) ............................ .131
THERMOTRONIC (3-zone) auto-
matic climate control ..................... 132
THERMOTRONIC automatic cli-
mate control with additional rear-
compartment climate control (3-
zone) .............................................. 133
Coat hooks ......................................... 318
Cockpit
Overview .......................................... 33
see Instrument cluster
Collapsible emergency spare
wheel
see Emergency spare wheel
COMAND display
Cleaning ......................................... 342
COMAND Online
Driving dynamics displa y............... 232
Switching on/of f........................... 303
Combination switch .......................... 122
Connecting a USB device
See also Digital Owner's Manua l... 303
Constant headlamp mode
see Daytime driving lights
Consumption statistics (on-board
computer) .......................................... 244
Controller ........................................... 304
Convenience closing feature .............. 95
Convenience opening feature ............ 95Convenience opening/closing (air-
recirculation mode) ........................... 139
Coolant (engine)
Checking the level ......................... 335
Display message ............................ 271
Important safety notes .................. 386
Temperature (on-board computer, Mercedes-AMG vehicles) ............... 255
Temperature gaug e........................ 242
Warning lamp ................................. 299
Cooling
see Climate control
Copyright ............................................. 32
Cornering light function
Display message ............................ 270
Function/note s............................. 123
Crash-responsive emergency light-
ing ....................................................... 126
Crosswind Assist ................................. 75
Cruise control
Activating ....................................... 181
Activation conditions ..................... 181
Cruise control lever ....................... 181
Deactivating ................................... 182
Display message ............................ 281
Driving system ............................... 180
Important safety notes .................. 180
LIM indicator lamp ......................... 181
Selecting ........................................ 181
Storing and maintaining current
speed ............................................. 181
Cup holder
Centre console .............................. 320
Important safety notes .................. 320
Rear compartment ......................... 321
Temperature controlled ................. 321
Third row of seats .......................... 321 D
Data see Technical data
Data carrier
Selecting ........................................ 247
Data modem mode
Telephone with Bluetooth ®
(SAP
profile) ........................................... 309 8
Index

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 switch on "Cooling with air dehumidification"
R activate the "Windscreen demisting" function
briefly, if required
Climate control regulates the temperature and
the humidity in the vehicle interior and filters
undesirable substances out of the air.
the "Residual heat" function can be switched on
or off only with the ignition switched off
(Y page 140).
i Ventilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (Y page 95).
This will speed up the cooling process and the desired interior 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 odours. 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 Booklet. As this
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i Vehicles with AIR-BALANCE package:
in
addition to ionisation, the vehicle has an air
filter with anti-allergenic properties that con-
tribute to improved air filtration.
i Under certain environmental conditions, the
residual heat function may be activated auto-
matically an hour after the key has been
removed in order to dry the automatic climate control. The vehicle is then ventilated for 30
minutes. Control panel for THERMATIC automatic climate control (2-zone)
Front control panel
: To set the temperature, left (Y page 136)
; To demist the windscreen (Y page 137)
= To switch the ZONE function on/off (Y page 137)
? To activate/deactivate cooling with air dehumidification (Y page 135) Overview of climate control systems
131Climate control

;
To demist the windscreen (Y page 137)
= To switch the residual heat on/off (Y page 140)
? To activate/deactivate cooling with air dehumidification (Y page 135)
A To switch the rear window heating on/off (Y page 138)
B To set the temperature, right (Y page 136)
C To switch the ZONE function on/off (Y page 137)
D To switch the climate control on/off (Y page 135)
E To set the air distribution (Y page 136)
F To increase the airflow (Y page 137)
G To reduce the airflow (Y page 137)
H Display
I To set the climate mode (Y page 136)
J To switch air-recirculation mode on/off (Y page 138)
K To set climate control to automatic mode (Y page 135)
Rear control panel
L To increase the airflow (Y page 137)
M To set the temperature (Y page 136)
N To control the rear-compartment climate control automatically (Y page 135)
O To direct the airflow through the rear air vents (Y page 136)
P To switch the seat heating on the right-hand side on/off (Y page 112)
Q To direct the airflow through the footwell vents (Y page 136)
R To switch the rear climate control on/off (Y page 135)
S To reduce the airflow (Y page 137)
T To switch the seat heating on the left-hand side on/off (Y page 112)Control panel for THERMOTRONIC automatic climate control with additional
rear-compartment climate control (3-zone) Front control panel
: To set the temperature, left (Y page 136)
; To demist the windscreen (Y page 137) Overview of climate control systems
133Climate control

=
To switch the ZONE function on/off (Y page 137)
? To activate/deactivate cooling with air dehumidification (Y page 135)
To switch the residual heat on/off (Y page 140)
A To switch the rear window heating on/off (Y page 138)
B To set the temperature, right (Y page 136)
C To switch the rear climate control on/off
D To switch the climate control on/off (Y page 135)
E To set the air distribution (Y page 136)
F To increase the airflow (Y page 137)
G To reduce the airflow (Y page 137)
H Display
I To set the climate mode (Y page 136)
J To switch air-recirculation mode on/off (Y page 138)
K To set climate control to automatic mode (Y page 135)
Rear control panel
L To increase the airflow (Y page 137)
M To set the temperature (Y page 136)
N To control the rear-compartment climate control automatically (Y page 135)
O To direct the airflow through the rear air vents (Y page 136)
P To direct the airflow through the footwell vents (Y page 136)
Q To switch the rear climate control on/off (Y page 135)
R To reduce the airflow (Y page 137)Notes on using the automatic climate
control
Optimum use of the automatic climate
control The following contains notes and recommenda-
tions on how best to use THERMATIC automatic climate control or THERMOTRONIC.
R Activate climate control using the Ãand
Á buttons. The indicator lamps in the
à andÁ buttons light up.
R Vehicles with THERMOTRONIC:in auto-
matic mode, you can also use the ñbutton
to set a climate mode (FOCUS/MEDIUM/
DIFFUSE). The MEDIUM level is recommen-
ded.
R Set the temperature to 22 †.
R Use the "Windscreen demisting" function only
briefly until the windscreen is clear again.
R Use air-recirculation mode 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
Vehicles with THERMOTRONIC:use the
ZONE function to adopt the temperature set-
tings on the driver's side for the front-
passenger side and the rear compartment as well. The indicator lamp above the ábut-
ton goes out.
R Vehicles with THERMOTRONIC:use the
"residual heat" function if you want to heat or
ventilate the vehicle interior when the ignitionis switched off. The residual heat function can
be activated or deactivated only with the igni- tion 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. You will see the current set-
tings of the various climate control functions.
During automatic engine switch-off, the climate
control operates only at a reduced capacity. If
you require the full climate control output, you
can switch off the ECO start/stop function by
pressing the ECO button (Y page 153).134
Overview of climate control systemsClimate control

Operating the climate control system
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.
Switch on climate control primarily using the
à button (Y page 135).
In the rear compartment, you can also switch
climate control on and off using the Ãand
^ buttons.
Activating/deactivating X
Turn the key to position 2in the ignition lock
(Y page 148).
X To switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto- matic mode.
X To switch off: press the^button.
The indicator lamp in the ^button lights
up. Activating/deactivating cooling with
air dehumidification
Activating/deactivating X
To activate: press the¿orÁ button.
The indicator lamp in the ¿orÁ button
lights up.
X To deactivate: press the¿orÁ but-
ton.
The indicator lamp in the ¿orÁ button
goes out. The cooling with air dehumidifica-
tion 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
¿ orÁ button
flashes three times or
remains off. The cooling
with air dehumidification
function cannot be acti-
vated. 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 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. In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using the
Ãbutton. Operating the climate control system
135Climate control

Demisting the windows
Windows misted up on the inside X
Activate the ¿orÁ cooling with air
dehumidification function.
X Activate automatic mode Ã.
X If the windows continue to mist up, activate
the "Windscreen demisting" function
(Y page 137).
i You should only select this setting until the
windscreen is clear again.
Windows misted up on the outside X
Switch on the windscreen wipers.
X Press the _button repeatedly until the
P orO symbol appears in the display.
i You should only select this setting until the
windscreen is clear again.
i If you clean the windows regularly, they do
not mist up so quickly. 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 window
heating may switch off.
Switching on/off X
Turn the key to position 2in the ignition lock
(Y page 148).
X Press the ¤button.
The indicator lamp in the ¤button lights
up or goes out.
Problems with the rear window heating Problem
Possible causes/consequences and
M MSolutions The rear window heating
has switched off prema-
turely or cannot be
switched on. 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 heating
can be switched on again. Activating/deactivating air-recircula-
tion mode
General notes You can deactivate the flow of fresh air tempo-
rarily if unpleasant odours are entering the vehi-
cle from outside. The air already inside the vehi- cle will then be recirculated.
If you switch on air-recirculation mode, the win-
dows can mist up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from mist- ing up. Switching on/off X
Turn the key to position 2in the ignition lock
(Y page 148).
X To activate: press thedbutton.
The indicator lamp in the dbutton lights
up.
i In the event of high pollution levels
(THERMOTRONIC automatic climate control
only) or at high outside temperatures, air-
recirculation mode is automatically activated.
When air-recirculation mode is activated
automatically, the indicator lamp in the d
button is not lit. 138
Operating the climate cont
rol systemClimate control