2016 MERCEDES-BENZ GL cooling

1, 2, 3 ...4ETS (Electronic Traction System)
see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 256
12 V socket
see Sockets
115 V socket ...................................... 354
360° camera
Cleaning ........................................ .3 80
Function/notes ............................ .2 36
AABS (Anti-lock Braking System)
Display message ............................ 291
Function/notes ................................ 68
Important safety notes .................... 68
Warning lamp ................................. 327
Accident
Automatic measures after an acci-
dent ................................................. 60
Activating/deactivating cooling
with air dehumidification ................. 153
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 282
Display message ............................ 314
Function/information .................... 248
Trailer towing ................................. 251
Active Curve System
Display message ............................ 311
Function/notes ............................. 219
Active Driving Assistance package .. 248
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 282
Display message ............................ 314
Function/information .................... 251
Trailer towing ................................. 254
Active Parking Assist
Display message ............................ 315
Exiting a parking space .................. 230
Function/notes ............................. 227
Important safety notes .................. 227
Parking .......................................... 229 Towing a trailer .............................. 231
ADAPTIVE BRAKE ................................. 76
Adaptive Brake Assist
Display message ............................ 298
Function/notes ................................ 72
Adaptive Highbeam Assist
Display message ............................ 306
Function/notes ............................. 134
Switching on/off ........................... 134
Additives (engine oil) ........................ 451
ADS (Adaptive Damping System)
Function/notes ............................. 218
Air bags
Deployment ..................................... 58
Display message ............................ 301
Front air bag (driver, front
passenger) ....................................... 51
Important safety notes .................... 50
Introduction ..................................... 50
Knee bag .......................................... 52
Occupant Classification System
(OCS) ............................................... 53
PASSENGER AIR BAG OFF indica-
tor lamp ........................................... 45
Sid e
impact air bag .......................... 52
Window curtain air bag .................... 53
Air filter (display message) .............. 309
AIR FLOW ........................................... 155
Air vents
Glove box ....................................... 161
Important safety notes .................. 160
Rear ............................................... 161
Setting ........................................... 160
Setting the center air vents ........... 160
Setting the side air vents ............... 161
Air-conditioning system
see Climate control
AIRMATIC package
ADS (Adaptive Damping System) ... 218
Function/notes ............................. 218
Level control .................................. 219
Alarm
ATA (Anti-Theft Alarm system) ......... 78
Switching off (ATA) .......................... 78
Switching the function on/off
(ATA) ................................................ 78
Alarm system
see ATA (Anti-Theft Alarm system)4
Index

Cargo compartment cover
Notes/how to use ........................ .3 46
Cargo compartment enlargement
Important safety notes .................. 344
Cargo compartment floor
Important safety notes .................. 347
Opening/closing ............................ 347
Stowage well (under) ..................... 347
Cargo tie down rings ......................... 345
CD player (on-board computer) ....... .2 79
Center console
Lower section .................................. 39
Upper section .................................. 38
Central locking
Automatic locking (on-board com-
puter) ............................................. 285
Locking/unlocking (SmartKey) ....... .8 2
Changing bulbs
Brake lamps .................................. .1 39
High-beam headlamps ................... 138
Low-beam headlamps .................... 138
Child
Restraint system .............................. 62
Child seat
Forward-facing restraint system ...... 66
LATCH-type (ISOFIX) child seat
anchors ............................................ 63
On the front-passenger seat ............ 65
Rearward-facing restraint system .... 66
Top Tether ....................................... 64
Child-proof locks
Important safety notes .................... 66
Rear doors ....................................... 67
Children
Special seat belt retractor ............... 61
Cigarette lighter ................................ 352
Cleaning
Mirror turn signal ........................... 380
Trailer tow hitch ............................. 381
Climate control
3-zone automatic climate control
with additional rear-compartment
climate control ............................... 150
Automatic climate control (3-
zone) .............................................. 148
Controlling automatically ............... 154
Cooling with air dehumidification .. 153
Defrosting the windows ................. 158 Defrosting the windshield .............. 157
Dual-zone automatic cli mate con-
tro l ................................................. 145
General notes ................................ 144
Indicator lamp ................................ 154
Information about using auto-
matic climate control ..................... 152
Information about using dual-zone
automatic climate control .............. 147
Maximum cooling .......................... 157
Overview of systems ...................... 144
Problem with the rear window
defroster ........................................ 159
Problems with cooling with air
dehumidification ............................ 154
Rear control panel ......................... 148
Rear control panel (3-zone auto-
matic climate control with addi-
tional rear-compartment climate
control) .......................................... 150
Refrigerant ..................................... 453
Refrigerant filling capacity ............. 454
Setting the air distribution ............. 156
Setting the air vents ...................... 160
Setting the airflow ......................... 156
Setting the climate mode (AIR
FLOW) ............................................ 155
Setting the temperature ................ 155
Switching air-recirculation mode
on/off ............................................ 159
Switching on/off ........................... 152
Switching residual heat on/off ...... 159
Switching the rear window
defroster on/off ............................ 158
Switching the ZONE function on/
off .................................................. 157
Coat hooks ......................................... 347
Cockpit
Overview .......................................... 34
see Instrument cluster
COLLISION PREVENTION ASSIST
Operation/notes .............................. 70
COMAND
ON&OFFROAD menu ..................... 262
see separate operating instructions
COMAND display
Cleaning ......................................... 381
Combination switch .......................... 132Index 7

Consumption statistics (on-board
computer) .......................................... 276
Convenience closing feature .............. 99
Convenience opening feature ............ 99
Coolant (engine)
Checking the level ........................ .3 73
Display message ............................ 306
Filling capacity ............................... 453
Important safety notes .................. 452
Temperature (on-board computer,
Mercedes-AMG vehicles) .............. .2 87
Temperature gauge ........................ 273
Warning lamp ................................. 335
Cooling
see Climate control
Copyright ............................................. 31
Cornering light function
Display message ............................ 303
Function/notes ............................ .1 33
Crash-responsive emergency light-
ing ....................................................... 136
Crosswind Assist ................................. 75
Crosswind driving assistance ............ 75
Cruise control
Activating ....................................... 204
Activation conditions ..................... 203
Cruise control lever ....................... 203
Deactivating ................................... 205
Display message ............................ 317
Driving system ............................... 202
Function/notes ............................ .2 02
Important safety notes .................. 203
Storing and maintaining current
speed ............................................. 204
Cup holder
Center console .............................. 349
Important safety notes .................. 349
Rear compartment ......................... 350
Temperature controlled ................. 349
Third row of seats .......................... 350
Customer Assistance Center
(CAC) ..................................................... 29
Customer Relations Department ....... 29
D
Data
see Technical data Daytime running lamps
Display message ............................ 305
Function/notes ............................ .1 30
Switching on/off (on-board com-
puter) ............................................. 284
Declarations of conformity ................. 28
DEF
Adding .......................................... .1 86
Display message ............................ 310
Filling capacity ............................... 450
Important safety notes .................. 450
Delayed switch-off
Exterior lighting (on-board com-
puter) ............................................. 284
Interior lighting .............................. 285
Diagnostics connection ..................... .2 8
Differential lock (display mes-
sage) .................................................. .3 12
Digital speedometer ......................... 277
DIRECT SELECT lever
Automatic transmission ................. 173
Display messages
ASSYST PLUS ................................ 374
Calling up (on-board computer) ..... 290
Driving systems ............................ .3 10
Engine ............................................ 306
General notes ................................ 290
Hiding (on-board computer) ........... 290
KEYLESS-GO .................................. 323
Lights ............................................. 303
Safety systems .............................. 291
SmartKey ....................................... 323
Tires ............................................... 318
Vehicle .......................................... .3 20
Distance recorder ............................ .2 75
Distance warning (warning lamp) .... 337
Distance warning function
Activating/deactivating ................. 281
Function/notes ................................ 70
Warning lamp ................................. 337
DISTRONIC PLUS
Activating ....................................... 207
Activation conditions ..................... 207
Cruise control lever ....................... 207
Deactivating ................................... 210
Display message ............................ 3168
Index

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 29).
Overview of climate control systems
General notesObserve the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up: R
switch off climate control only briefly R
switch on air-recirculation mode only
briefly R
switch on the cooling with air dehumidifi-
cation function R
switch 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.
Climate control can only be operated when
the engine is running. Optimum operation is
only achieved with the side windows and roof
closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off ( Y
page 159).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature ( Y
page 99).
This will speed up the cooling process and
the desired interior temperature will be
reached more quickly. i The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odors. 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 Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet.
i It is possible that under certain circum-
stances the residual heat function may be
activated automatically an hour after the
SmartKey has been removed in order to dry
the automatic climate control. The vehicle
is then ventilated for 30 minutes.144
Overview of climate control systems
Climate control

Switching cooling with air dehumidi-
fication on/off
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-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a malfunc-
tion.
Activating or deactivating
Example: Z buttonX
To activate: press the Z or V but-
ton.
The indicator lamp in the Z or V
button lights up. X
To deactivate: press the Z or V
button.
The indicator lamp in the Z or V
button goes out. The "Cooling with air dehu-
midification" function has a delayed switch-
off feature. Operating the climate control systems 153
Climate control

Problems with the "Cooling with air dehumidification" function Problem
Possible causes/consequences and P Solutions
The indicator lamp in
the Z or V but-
ton flashes three times
or remains off. The
"Cooling with air dehu-
midification" function
cannot be switched on. Cooling with air dehumidification has been deactivated due to a
malfunction. X
Visit a qualified specialist workshop.
Setting climate control to automatic
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-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
Automatic mode will achieve optimal opera-
tion if cooling with air dehumidification is also
activated. If necessary, cooling with air dehu-
midification can be deactivated.
In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using the X button. Automatic control
X
Turn the SmartKey to position 2 in the igni-
tion lock ( Y
page 165). X
Set the desired temperature. X
To activate: press the X button.
The indicator lamp in the X button lights
up. Automatic air distribution and airflow
are activated. X
To switch to manual mode: press the

Problem
Possible causes/consequences and P SolutionsX
Observe the additional display messages in the multifunction
display. X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. X
Secure the vehicle against rolling away ( Y
page 189).X
Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down. X
Check the coolant level and add coolant, observing the warning
notes ( Y
page 373). X
If you have to add coolant frequently, have the engine cooling
system checked. X
Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice. X
At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop. X
Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
Driving systems
Problem
Possible causes/consequences and P Solutions

X
Turn the SmartKey to position 2 in the igni-
tion lock. X
To switch on the cooling function: press
and hold button