2016 MERCEDES-BENZ GLA cooling

1, 2, 3 ...4ETS (Electronic Traction System)
see ETS/4ETS (Electronic Trac-
tion System)
4MATIC
Display message ............................ 263
4MATIC (permanent four-wheel
drive) .................................................. 197
12 V socket
see Sockets
AABS (Anti-lock Braking System)
Display message ............................ 236
Function/notes ................................ 65
Important safety notes .................... 65
Warning lamp ................................ .2 69
Acceleration
see Kickdown
Accident
Automatic measures after an acci-
dent ................................................. 58
Activating/deactivating cooling
with air dehumidification ................. 138
Active Parking Assist
Detecting parking spaces .............. 204
Display message ............................ 255
Exiting a parking space .................. 206
Function/notes ............................ .2 03
Important safety notes .................. 203
Parking .......................................... 205
ADAPTIVE BRAKE ................................. 73
Adaptive Brake Assist
Function/notes ................................ 68
Adaptive Damping System
Function/notes ............................ .1 96
Additional speedometer ................... 229
Additives (engine oil) ........................ 380
Air bags
Deployment ..................................... 56
Display message ............................ 246
Front air bag (driver, front
passenger) ....................................... 49
Important safety notes .................... 48
Introduction ..................................... 48
Knee bag .......................................... 50 Occupant Classification System
(OCS) ............................................... 51
PASSENGER AIR BAG indicator
lamps ............................................... 43
Side impact air bag .......................... 50
Window curtain air bag .................... 50
Air vents
Important safety notes .................. 144
Rear ............................................... 145
Setting the center air vents ........... 144
Setting the side air vents .............. .1 44
Air-conditioning system
see Climate control
Alarm
ATA (Anti-Theft Alarm system) ......... 73
Switching off (ATA) .......................... 73
Switching the function on/off
(ATA) ................................................ 73
Alarm system
see ATA (Anti-Theft Alarm system)
AMG
Adaptive sport suspension sys-
tem ................................................ 196
Performance Seat .......................... 106
AMG menu (on-board computer) ..... 231
AMG Performance exhaust sys-
tem ..................................................... 155
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-skid chains
see Snow chains
Approach/departure angle .............. 183
Ashtray ............................................... 290
Assistance display (on-board com-
puter) ................................................. .2 27
Assistance menu (on-board com-
puter) ................................................. .2 27
ASSYST PLUS
Displaying a service message ....... .3 13
Driving abroad ............................... 313
Hiding a service message .............. 312
Information about Service ............. 313
Resetting the service interval dis-
play ................................................ 313
Service message ............................ 312
Special service requirements ......... 3134
Index

On the front-passenger seat ............ 62
Rearward-facing restraint system ... .6 2
Top Tether ....................................... 61
Child-proof locks
Important safety notes .................... 63
Rear doors ....................................... 64
Children
Special seat belt retractor ............... 59
Cigarette lighter ................................ 291
Cleaning
Mirror turn signal ........................... 317
Climate control
Air-conditioning system ................. 133
Automatic climate control (dual-
zone) ............................................. .1 35
Controlling automatically .............. .1 39
Cooling with air dehumidification .. 138
Defrosting the windows ................. 142
Defrosting the windshield .............. 141
General notes ................................ 132
Indicator lamp ................................ 139
Information about using auto-
matic climate control ..................... 136
Maximum cooling .......................... 141
Notes on using the air-condition-
ing system ..................................... 134
Overview of systems ..................... .1 32
Problem with the rear window
defroster ........................................ 143
Problems with cooling with air
dehumidification ............................ 139
Refrigerant ..................................... 382
Refrigerant filling capacity ............. 383
Setting the air distribution ............. 140
Setting the air vents ..................... .1 44
Setting the airflow ......................... 140
Setting the temperature ................ 139
Switching air-recirculation mode
on/off ............................................ 143
Switching on/off ........................... 137
Switching residual heat on/off ...... 143
Switching the rear window
defroster on/off ............................ 142
Switching the ZONE function on/
off ................................................. .1 40
Co
ckpit
Overview .......................................... 30 Coffee cup symbol
see ATTENTION ASSIST
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 228
Display message ............................ 242
Operation/notes .............................. 66
COMAND
Driving dynamics display ............... 200
COMAND display
Cleaning ......................................... 318
Combination switch .......................... 118
Compass
Calibrating ..................................... 304
Calling up ....................................... 303
Magnetic field zone maps .............. 304
Setting ........................................... 304
Consumption statistics (on-board
computer) .......................................... 222
Convenience closing feature .............. 92
Convenience opening feature ............ 91
Coolant (engine)
Checking the level ......................... 311
Display message ............................ 251
Filling capacity ............................... 381
Important safety notes .................. 381
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 231
Temperature gauge ........................ 219
Warning lamp ................................. 275
Cooling
see Climate control
Copyright ............................................. 27
Cornering light function
Changing bulbs .............................. 123
Display message ............................ 248
Function/notes ............................. 119
Cover
see Roller sunblind
Crash-responsive emergency light-
ing ....................................................... 121
Cruise control
Activation conditions ..................... 184
Cruise control lever ....................... 184
Deactivating ................................... 185
Display message ............................ 257
Driving system ............................... 184 Index 7

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 25).
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
The air-conditioning system/dual-zone auto-
matic climate control regulates the tempera-
ture and the humidity of the vehicle interior
and filters out undesirable substances from
the air.
The air-conditioning system/dual-zone auto-
matic climate control can only be operated
when the engine is running. Optimum opera-
tion is only achieved with the side windows
and panorama roof with power tilt/sliding
panel closed.
If you start the engine using your smartphone,
the last selected climate control setting is
reactivated ( Y
page 171). The residual heat function can only be acti-
vated or deactivated with the ignition
switched off ( Y
page 143).
Always keep the ventilation flaps behind the
side trim panel in the cargo compartment
clear ( Y
page 124). Otherwise the vehicle will
not be ventilated correctly.
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature ( Y
page 91). 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 t he
Main tenance 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.132
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.
Switching on/off X
To activate: press the Z button.
The indicator lamp in the Z button lights
up. X
To deactivate: press the Z button.
The indicator lamp in the Z button goes
out. The "Cooling with air dehumidification"
function has a delayed switch-off feature.138
Operating the climate control systems
Climate control

Problems with the "Cooling with air dehumidification" function Problem
Possible causes/consequences and P Solutions
The indicator lamp in
the Z button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation" 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 The automatic function is only available in
conjunction with dual-zone automatic climate
control.
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.
The automatic mode functions optimally
when the "Cooling with air dehumidification"
function is activated. If necessary, cooling
with air dehumidification can be deactivated.
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.
Setting climate control to automatic X
Turn the SmartKey to position 2 in the igni-
tion lock ( Y
page 149).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
O or J button.
or X
Press the

Problem
Possible causes/consequences and P SolutionsX
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 311). 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 heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic.
Driving systems
Problem
Possible causes/consequences and P Solutions

Example: engine oil cap X
Turn cap C counter-clockwise and remove
it. X
Add engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 l) of
engine oil. X
Replace cap C on the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely. X
Check the oil level again with the oil dip-
stick ( Y
page 310).
Further information on engine oil
( Y
page 379).
Checking and adding other service
products
Checking coolant level
G WARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is a risk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
! The coolant may only be checked and cor-
rected when the engine is cool (coolant
temperature below 104 ‡ (40 †). Check-
ing the coolant when the coolant tempera-
ture is above 104 ‡ (40 †) may result in
damage to the engine or to the engine cool-
ing system. Example X
Park the vehicle on a level surface.
Only check the coolant level when the vehi-
cle is on a level surface and the engine has
cooled down. X
Turn the SmartKey to position 2 in the igni-
tion lock ( Y
page 149). X
Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
104 ‡ (40 †). X
Turn the SmartKey to position 0 in the igni-
tion lock ( Y
page 149). X
Slowly turn cap C counter-clockwise and
to relieve excess pressure. X
Turn cap C further counter-clockwise and
remove it.
If the coolant is at the level of marker bar

Only use brake fluid approved by Mercedes-
Benz in accordance with MB-Freigabe or MB-
Approval 331.0.
Information about approved brake fluid can
be obtained at any qualified specialist work-
shop or on the Internet at
http://bevo.mercedes-benz.com.
i Have the brake fluid regularly replaced at
a qualified specialist workshop and the
replacement confirmed in the Maintenance
Booklet.
Coolant
Important safety notes
G WARNING
If antifreeze comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly clean the
antifreeze from components before starting
the engine.
! Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be
found in the Mercedes-Benz Specifications
for Service Products, MB BeVo 310.1, e.g.
on the Internet at
http://bevo.mercedes-benz.com. Or con-
tact a qualified specialist workshop.
! Always use a suitable coolant mixture,
even in countries where high temperatures
prevail.
Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the
replacement confirmed in the Maintenance
Booklet. Comply with the important safety precautions
for service products when handling coolant
( Y
page 377).
The coolant is a mixture of water and anti-
freeze/corrosion inhibitor. It performs the
following tasks: R
corrosion protection R
antifreeze protection R
raising the boiling point
If the coolant has antifreeze protection down
to -35 ‡( -37 †), the boiling point of the cool-
ant during operation is approximately 266 ‡
(130 †).
The antifreeze/corrosion inhibitor concentra-
tion in the engine cooling system should: R
be at least 50%. This will protect the engine
cooling system against freezing down to
approximately -35 ‡ (-37 †) .R
no t exceed 55 % (antifreeze protection
do wn to -49 ‡ [-45 †]). Otherwise, heat
will not be dissipated as effectively.
Mercedes-Benz recommends coolant or anti-
freeze/corrosion inhibitor concentrate in
accordance with MB Specifications for Ser-
vice Products 310.1.
i When the vehicle is first delivered, it is fil-
led with a coolant mixture that ensures
adequate antifreeze and corrosion protec-
tion.
i The coolant is checked with every main-
tenance interval at a qualified specialist
workshop.
Filling capacities
Model Capacity
Mercedes ‑ AMG
vehicles Approx. 12.6 US qt
(11.9 l)
All other models
Approx. 8.2 US qt
(7.8 l)Service products and filling capacities 381
Technical data Z