2018 MERCEDES-BENZ GLS SUV cooling

1, 2, 3 ...
4ETS (Electronic Traction System)see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 218
12 V socket
see Sockets
115 V socket ...................................... 313
360° camera
Cleaning ........................................ .334
Display in the multimedia system .. 205
Function/notes .............................2 03
A
ABS (Anti-lock Braking System)
Display message ............................ 249
Function/notes ................................ 66
Important safety notes .................... 66
Warning lamp ................................. 282
Accident
Automatic measures after an acci-
dent ................................................. 59
Activating media mode
General notes ................................ 298
Activating/deactivating cooling
with air dehumidification ................. 131
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 242
Display message ............................ 269
Function/information .................... 213
Trailer towing ................................. 215
Active Brake Assist
Activating or deactivating .............. 242
Display message ............................ 254
Function/notes ................................ 67
Active Brake Assist with cross-
traffic function
Activating or deactivating .............. 242
Display message ............................ 255
Function/notes ................................ 72
Important safety notes .................... 73
Warning lamp ................................. 290
Active Curve System
Display message ............................ 266 Function/notes ............................. 189
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 242
Display message ............................ 268
Function/information .................... 215
Trailer towing ................................. 218
Active light function ......................... 117
ADAPTIVE BRAKE ................................. 72
Adaptive Highbeam Assist
Display message ............................ 261
Function/notes ............................. 118
Switching on/off ........................... 118
Additives (engine oil) ........................ 390
Address book
see also Digital Operator's Man-
ual .................................................. 292
Adjusting the volume
Multimedia system ........................ 293
ADS (Adaptive Damping System)
Function/notes ............................. 188
Air bags
Deployment ..................................... 56
Display message ............................ 258
Front air bag (
driver, front
passenger) ....................................... 50
Important safety notes .................... 49
Introduction ..................................... 49
Knee bag .......................................... 50
Occupant Classification System
(OCS) ............................................... 51
PASSENGER AIR BAG indicator
lamps ............................................... 45
Side impact air bag .......................... 51
Window curtain air bag .................... 51
Air filter (display message) .............. 264
AIR FLOW ........................................... 132
Air vents
Glove box ....................................... 136
Important safety notes .................. 136
Rear ............................................... 137
Setting ........................................... 136
Setting the center air vents ........... 136
Setting the side air vents ............... 136
Air-conditioning system
see Climate control
4Index

Power washer ................................ 331
Rear view camera .......................... 334
Roof lining ...................................... 337
Seat belt ........................................336
Seat cover ..................................... 336
Sensors ......................................... 334
Side running board ........................ 334
Steering wheel ............................... 336
Trim pieces ....................................3 36
Washing by hand ........................... 331
Wheels ...........................................3 33
Windows ........................................ 333
Wiper blades .................................. 333
Wooden trim .................................. 336
Cargo compartment cover
Notes/how to use ......................... 306
Cargo compartment enlargement
Important safety notes .................. 303
Cargo compartment floor
Important safety notes .................. 307
Opening/closing ............................ 307
Stowage well (under) ..................... 307
Cargo tie down rings ......................... 305
CD
see also Digital Operator's Man-
ual ..................................................2 92
CD player (on-board computer) ........239
Center console
Lower section .................................. 40
Upper section .................................. 39
Central locking
Automatic locking (on-board com-
puter) ............................................. 244
Locking/unlocking (SmartKey) ........7 7
Child
Restraint system .............................. 61
Child seat
Forward-facing restraint system ...... 64
LATCH-type (ISOFIX) child seat
anchors ............................................ 62
On the front-passenger seat ............ 64
Rearward-facing res train
t system .... 64
Top Tether ...................................... .63
Child-proof locks
Important safety notes .................... 64
Rear doors ...................................... .65
Children
Special seat belt retractor .............. .60 Children in the vehicle
Important safety notes .................... 59
Cigarette lighter ................................ 312
Cleaning
Mirror turn signal .......................... .334
Trailer tow hitch .............................3 35
Climate control
3-zone automatic climate control
with additional rear-compartment
climate control ............................... 129
Automatic climate control (3-
zone) .............................................. 127
Controlling automatically ...............1 32
Cooling with air dehumidification .. 131
Defrosting the windows ................. 134
Defrosting the windshield .............. 133
Dual-zone automatic climate con-
trol ................................................. 125
General notes ................................ 125
Indicator lamp ................................ 132
Ionization ....................................... 135
Maximum cooling .......................... 134
Notes on using the automatic cli-
mate control .................................. 131
Overview of systems ......................1 25
Problem with the rear window
defroster ........................................ 135
Problems with cooling with air
dehumidification ............................ 132
Rear control panel ......................... 127
Rear control panel (3-zone auto-
matic climate control with addi-
tional rear-compa
rtment climate
control) .......................................... 129
Refrigerant ..................................... 391
Refrigerant filling capacity ............. 392
Setting the air distribution ............. 133
Setting the air vents ......................1 36
Setting the airflow ......................... 133
Setting the climate mode (AIR
FLOW) ............................................ 132
Setting the temperature ................ 132
Switching air-recirculation mode
on/off ............................................ 135
Switching on/off ........................... 131
Switching residual heat on/off ...... 135
Switching the rear window
defroster on/off ............................ 134
Index7

Switching the ZONE function
on/off ............................................ 133
Coat hooks ......................................... 306
Cockpit
Overview .......................................... 36
see Instrument cluster
Collapsible spare wheel
Inflating ......................................... 382
see Emergency spare wheel
COMAND
Driving dynamics display ............... 223
COMAND display
Cleaning ......................................... 335
Combination switch .......................... 116
Connecting a USB device
see also Digital Operator's Man-
ual .................................................. 292
Consumption statistics (on-board
computer) .......................................... 236
Controller ........................................... 293
Convenience closing feature .............. 90
Convenience opening feature ............ 90
Coolant (engine)
Checking the level ......................... 328
Display message ............................ 261
Filling capacity ............................... 391
Important safety notes .................. 390
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 245
Temperature gauge ........................ 234
Warning lamp ................................. 288
Cooling
see Climate control
Copyright ............................................. 35
Cornering light function
Display message ............................ 260
Crash-responsive emergency light-
ing ....................................................... 120
Crosswind Assist ................................. 71
Crosswind driving assistance ............ 71
Cruise control
Activating ....................................... 175
Activation conditions ..................... 175
Cruise control lever ....................... 175
Deactivating ................................... 176
Display message ............................ 271
Driving system ............................... 174 Function/notes ............................. 174
Important safety notes .................. 174
Storing and maintaining current
speed ............................................. 175
Cup holder
Center console .............................. 309
Important safety notes .................. 308
Rear compartment ......................... 309
Temperature controlled ................. 309
Third row of seats .......................... 310
Customer Ass
istance Center
(CAC) ..................................................... 31
Customer Relations Department ....... 31
D
Data
see Technical data
Data carrier
Selecting ........................................ 239
Daytime running lamps
Display message ............................ 260
Function/notes ............................. 115
Switching on/off (on-board com-
puter) ............................................. 243
Declarations of conformity ................. 30
DEF
Adding ........................................... 158
Display message ............................ 264
Filling capacity ............................... 389
Important safety notes .................. 389
Diagnostics connection ...................... 31
Differential lock (display mes-
sage) ................................................... 267
Digital Operator's Manual
Help ................................................. 26
Introduction ..................................... 26
Digital speedometer ......................... 237
DIRECT SELECT lever
Automatic transmission ................. 148
Display messages
ASSYST PLUS ................................ 329
Calling up (on-board computer) ..... 248
Driving systems ............................. 265
Engine ............................................ 261
General notes ................................ 248
Hiding (on-board computer) ........... 248
KEYLESS-GO .................................. 278
8Index

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Rswitch on the defrost windshield 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 only be activated
or deactivated with the ignition switched off
(
Ypage 135).
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 90). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly. If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 142).
iThe integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. A clogged filter reduces the
amount of air supplied to the vehicle interior.
Depending on the operating conditions and
environmental influences, the interval for
replacing the filter may be shorter than speci-
fied.
iVehicles with ionization of the interior
air and air filter: in addition to ionization, the
vehicle has an air filter with anti-allergenic
properties that contribute to improved air fil-
tration.
iIt is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the auto-
matic climate control. The vehicle is then ven-
tilated for 30 minutes.
Control panel for dual-zone automatic climate control
USA only
Front control panel
:Sets the temperature, left (Ypage 132)
;Defrosts the windshield (Ypage 133)
Overview of climate control systems125
Climate control

=Switches the maximum cooling MAX COOL on or off (Ypage 134)
?Switches cooling with air dehumidification on/off (Ypage 131)
ASwitches the rear window defroster on/off (Ypage 134)
BSets the temperature, right (Ypage 132)
CSwitches air-recirculation mode on/off (Ypage 135)
DSets the air distribution (Ypage 133)
EIncreases the airflow (Ypage 133)
FReduces the airflow (Ypage 133)
GActivates/deactivates climate control (Ypage 131)
HSets climate control to automatic (Ypage 132)
Rear control panel
ISets rear-compartment climate control to automatic (Ypage 132)
JDirects the air distribution through the rear air vents (Ypage 133)
KSwitches the seat heating on the right-hand side on/off (Ypage 106)
LDirects the air distribution through the footwell vents (Ypage 133)
MSwitches the rear climate control on/off (Ypage 131)
NSwitches the seat heating on the left-hand side on/off (Ypage 106)
Canada only
Front control panel
:Sets the temperature, left (Ypage 132)
;Defrosts the windshield (Ypage 133)
=Switches the ZONE function on/off (Ypage 133)
?Switches cooling with air dehumidification on/off (Ypage 131)
Switches the residual heat on or off (
Ypage 135)
ASwitches the rear window defroster on/off (Ypage 134)
BSets the temperature, right (Ypage 132)
CSwitches air-recirculation mode on/off (Ypage 135)
DSets the air distribution (Ypage 133)
EIncreases the airflow (Ypage 133)
FReduces the airflow (Ypage 133)
GActivates/deactivates climate control (Ypage 131)
HSets climate control to automatic (Ypage 132)
126Overview of climate control systems
Climate control

Rear control panel
ISets rear-compartment climate control to automatic (Ypage 132)
JDirects the air distribution through the rear air vents (Ypage 133)
KSwitches the seat heating on the right-hand side on/off (Ypage 106)
LDirects the air distribution through the footwell vents (Ypage 133)
MSwitches the rear climate control on/off (Ypage 131)
NSwitches the seat heating on the left-hand side on/off (Ypage 106)
Control panel for 3-zone automatic climate control
USA only
Front control panel
:Sets the temperature, left (Ypage 132)
;Defrosts the windshield (Ypage 133)
=Switches the maximum cooling MAX COOL on or off (Ypage 134)
?Switches cooling with air dehumidification on/off (Ypage 131)
ASwitches the rear window defroster on/off (Ypage 134)
BSets the temperature, right (Ypage 132)
CSwitches the ZONE function on/off (Ypage 133)
DActivates/deactivates climate control (Ypage 131)
ESets the air distribution (Ypage 133)
FIncreases the airflow (Ypage 133)
GReduces the airflow (Ypage 133)
HDisplay
IAdjusts the climate mode settings (Ypage 132)
JSwitches air-recirculation mode on/off (Ypage 135)
KSets climate control to automatic (Ypage 132)
Rear control panel
LIncreases the airflow (Ypage 133)
MSets the temperature (Ypage 132)
Overview of climate control systems127
Climate control

NSets rear-compartment climate control to automatic (Ypage 132)
ODirects the airflow through the rear air vents (Ypage 133)
PSwitches the seat heating on the right-hand side on/off (Ypage 106)
QDirects the airflow through the footwell vents (Ypage 133)
RSwitches the rear climate control on/off (Ypage 131)
SReduces the airflow (Ypage 133)
TSwitches the seat heating on the left-hand side on/off (Ypage 106)
Canada only
Front control panel
:Sets the temperature, left (Ypage 132)
;Defrosts the windshield (Ypage 133)
=Switches the residual heat on or off (Ypage 135)
?Switches cooling with air dehumidification on/off (Ypage 131)
ASwitches the rear window defroster on/off (Ypage 134)
BSets the temperature, right (Ypage 132)
CSwitches the ZONE function on/off (Ypage 133)
DActivates/deactivates climate control (Ypage 131)
ESets the air distribution (Ypage 133)
FIncreases the airflow (Ypage 133)
GReduces the airflow (Ypage 133)
HDisplay
IAdjusts the climate mode settings (Ypage 132)
JSwitches air-recirculation mode on/off (Ypage 135)
KSets climate control to automatic (Ypage 132)
Rear control panel
LIncreases the airflow (Ypage 133)
MSets the temperature (Ypage 132)
NSets rear-compartment climate control to automatic (Ypage 132)
ODirects the airflow through the rear air vents (Ypage 133)
PSwitches the seat heating on the right-hand side on/off (Ypage 106)
128Overview of climate control systems
Climate control

QDirects the airflow through the footwell vents (Ypage 133)
RSwitches the rear climate control on/off (Ypage 131)
SReduces the airflow (Ypage 133)
TSwitches the seat heating on the left-hand side on/off (Ypage 106)
Control panel for 3-zone automatic climate control with additional rear-com-
partment climate control
USA only
Front control panel
:Sets the temperature, left (Ypage 132)
;Defrosts the windshield (Ypage 133)
=Switches the maximum cooling MAX COOL on or off (Ypage 134)
?Switches cooling with air dehumidification on/off (Ypage 131)
Switches the residual heat on or off (
Ypage 135)
ASwitches the rear window defroster on/off (Ypage 134)
BSets the temperature, right (Ypage 132)
CSwitches the ZONE function on/off (Ypage 133)
DSwitches the rear climate control on/off (Ypage 131)
ESets the air distribution (Ypage 133)
FIncreases the airflow (Ypage 133)
GReduces the airflow (Ypage 133)
Switches off climate control
HDisplay
IAdjusts the climate mode settings (Ypage 132)
JSwitches air-recirculation mode on/off (Ypage 135)
KSets climate control to automatic (Ypage 132)
Rear control panel
LIncreases the airflow (Ypage 133)
MSets the temperature (Ypage 132)
Overview of climatecont rol systems129
Climate control