Cooling MERCEDES-BENZ GLA-Class 2015 X156 Owner's Manual

1, 2, 3 ...
12 V socket see Sockets
4ETS (Electronic Traction System)
see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent all-wheel
drive)
Function/notes .............................1 84
4MATIC (permanent four-wheel
drive) Display message ............................ 250 A
ABS (Anti-lock Braking System) Display message ............................ 222
Function/notes ................................ 65
Warning lamp ................................. 254
Acceleration
see Kickdown
Accident
Automatic measures after an acci-
dent ................................................. 58
Activating/deactivating cooling
with air dehumidification ................. 131
Active Parking Assist Canceling ....................................... 193
Detecting parking spaces .............. 190
Display message ............................ 243
Exiting a parking space .................. 192
General notes ................................ 189
Important safety notes .................. 189
Parking .......................................... 191
Active Service System PLUS
see ASSYST PLUS
ADAPTIVE BRAKE ................................. 72
Adaptive Brake Assist Function/notes ................................ 67
Adaptive Highbeam Assist
Display message ............................ 237
Function/notes ............................ .114
Switching on/off ........................... 115
Additional speedometer ................... 215
Additives (engine oil) ........................ 365
After-sales service center see ASSYST PLUS Air bags
Deployment ..................................... 56
Display message ............................ 233
Front air bag (driver, front
passenger) ....................................... 49
Important safety notes .................... 48
Introduction ..................................... 48
Knee bag .......................................... 49
PASSENGER AIR BAG indicator
lamps ............................................... 43
Side impact air bag .......................... 50
Window curtain air bag .................... 50
Air-conditioning system
see Climate control
Air vents
Important safety notes .................. 138
Rear ............................................... 139
Setting .......................................... .138
Setting the center air vents ........... 138
Setting the side air vents .............. .138
see Air vents
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)
All-wheel drive
see 4MATIC (permanent all-wheel drive)
Ambient lighting
Setting the brightness (on-board
computer) ...................................... 216
AMG
Performance Seat .......................... 100
AMG menu (on-board computer) ..... 218
Anti-lock braking system see ABS (Anti-lock Braking System)
Anti-skid chains
see Snow chains
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Approach/departure angle .............. 170
Ashtray ............................................... 275
Assistance display (on-board com-
puter) ................................................. .213 4
Index

Children
In the vehicle .................................. .58
Restraint systems ............................ 59
Special seat belt retractor .............. .59
Child seat
Forward-facing restraint system ...... 62
LATCH-type (ISOFIX) child seat
anchors ............................................ 60
On the front-passenger seat ............ 62
Rearward-facing restraint system .... 62
Top Tether ...................................... .61
Cigarette lighter ................................ 276
Cleaning Mirror turn signal .......................... .301
Climate control
Air-conditioning system ................. 127
Automatic climate control (dual-
zone) .............................................. 129
Controlling automatically .............. .133
Cooling with air dehumidification .. 131
Defrosting the windows ................. 135
Defrosting the windshield .............. 135
General notes ................................ 126
Indicator lamp ................................ 133
Information about using auto-
matic climate control ..................... 130
Maximum cooling .......................... 135
Notes on using the air-condition-
ing system ..................................... 128
Overview of systems ..................... .126
Problems with cooling with air
dehumidification ............................ 133
Problem with the rear window
defroster ........................................ 137
Refrigerant ..................................... 367
Refrigerant filling capacity ............. 367
Setting the air distribution ............. 134
Setting the airflow ......................... 134
Setting the air vents ..................... .138
Setting the temperature ................ 133
Switching air-recirculation mode
on/off ............................................ 137
Switching on/off ........................... 131
Switching residual heat on/off ...... 137 Switching the rear window
defroster on/off ............................ 136
Switching the ZONE function on/
off .................................................
.134
Climate control system
Automatic engine start .................. 146
Automatic engine switch-off .......... 145
Deactivating/activating ................. 146
General information ....................... 145
Important safety notes .................. 145
Introduction ................................... 145
Cockpit
Overview .......................................... 32
see Instrument cluster
Coffee cup symbol
see ATTENTION ASSIST
COLLISION PREVENTION ASSIST
Display message ............................ 222
COLLISION PREVENTION ASSIST
PLUS
Activating/deactivating ................. 214
Display message ............................ 229
Operation/notes .............................. 66
COMAND
see separate operating instructions
Combination switch .......................... 112
Compass Calibrating ..................................... 290
Calling up ....................................... 289
Setting .......................................... .289
Consumption statistics (on-board
computer) .......................................... 207
Convenience closing feature .............. 88
Convenience opening feature ............ 88
Coolant (engine) Checking the level ......................... 295
Display message ............................ 238
Filling capacity ............................... 366
Important safety notes .................. 365
Temperature (on-board computer, AMG vehicles) ................................ 218
Temperature gauge ........................ 204
Warning lamp ................................. 260
Cooling
see Climate control
Copyright ............................................. 30 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 28). Overview of climate control systems
General notes
Observe 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.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 137).
Always keep the ventilation flaps behind the
side trim panel in the cargo compartment clear (Y
page 119). 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 88). 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 the residual heat func-
tion may be activated automatically an hour after the SmartKey has been removed in
order to dry the air-conditioning system.
The vehicle is then ventilated for
30 minutes. 126
Overview of climate control systemsClimate control

Air-conditioning system control panel
USA only
0043
To set the temperature (Y page 133)
0044 To defrost the windshield (Y page 135)
0087 To set the air distribution (Y page 134)
0085 To activate/deactivate air-recirculation mode (Y page 137)
0083 To set the airflow (Y page 134)
0084 To switch cooling with air dehumidification on/off (Y page 131)
006B To switch the rear window defroster on/off (Y page 136)Canada only
0043
To set the temperature (Y page 133)
0044 To defrost the windshield (Y page 135)
0087 To set the air distribution (Y page 134) Overview of climate control systems
127Climate control

0085
To activate/deactivate air-recirculation mode (Y page 137)
0083 To set the airflow (Y page 134)
0084 To switch cooling with air dehumidification on/off (Y page 131)
006B To switch the rear window defroster on/off (Y page 136)Notes on using the air-conditioning
system
Air-conditioning system Below, you can find a number of notes and
recommendations to help you use the air-
conditioning system optimally.
R Switch on the air-conditioning system by
turning control knob 0083clockwise to the
desired position (except position 0).
R Set the temperature to 72 ‡ (22 †).
R Recommendation for avoiding misted
windows at low exterior temperatures
or in rain: switch on the 005Acooling with
dehumidification function (Y page 131).
Set air distribution to 0061and if possible
switch off 009Cand009B (Ypage 134).
In air-recirculation mode, switch 008Aoff
(Y page 137).
Set airflow control 0083to a setting between
3 and 6(Y page 134).
R Recommendation for rapid cooling or
heating of the vehicle interior: briefly set
airflow control 0083to a setting between 3
and 6(Y page 134).
R Recommendation for a constant vehi-
cle interior temperature: set airflow con-
trol 0083to a setting between 1and 3
(Y page 134).
R Recommendation for air distribution in
the winter: set009B and0061
(Y page 134).
Recommendation for air distribution in
the summer: set009C or009C and0061
(Y page 134).
R Only use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again. R
Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various cli-
mate control functions.
ECO start/stop function During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 146). 128
Overview of climate control systemsClimate control

Control panel for dual-zone automatic climate control
USA only
0043
To set the temperature, left (Y page 133)
0044 To set climate control to automatic (Y page 133)
0087 To defrost the windshield (Y page 135)
0085 To increase the airflow (Y page 134)
0083 To set the air distribution (Y page 134)
0084 Display
006B To activate/deactivate air-recirculation mode (Y page 137)
006C To switch climate control on/off (Y page 131)
006D To set the temperature, right (Y page 133)
006E To activate/deactivate maximum cooling (Y page 135)
006F To switch cooling with air dehumidification on/off (Y page 131)
0070 To reduce the airflow (Y page 134)
0071 To switch the rear window defroster on/off (Y page 136)
0072 To switch the ZONE function on/off (Y page 134) Overview of climate control systems
129Climate control

Canada only
0043
To set the temperature, left (Y page 133)
0044 To set climate control to automatic (Y page 133)
0087 To defrost the windshield (Y page 135)
0085 To increase the airflow (Y page 134)
0083 To set the air distribution (Y page 134)
0084 Display
006B To activate/deactivate air-recirculation mode (Y page 137)
006C To switch climate control on/off (Y page 131)
006D To set the temperature, right (Y page 133)
006E To switch the residual heat function on/off (Y page 137)
006F To switch cooling with air dehumidification on/off (Y page 131)
0070 To reduce the airflow (Y page 134)
0071 To switch the rear window defroster on/off (Y page 136)
0072 To switch the ZONE function on/off (Y page 134)Optimum use of dual-zone automatic
climate control
Automatic climate control The following contains instructions and rec-
ommendations to enable you to get the most
out of your dual-zone automatic climate con- trol.
R Activate climate control using the 0058and
005A buttons. The indicator lamps in the
0058 and005A buttons light up.
R Set the temperature to 72 ‡ (22 †). R
Only use the "Windshield defrosting" func-
tion briefly until the windshield is clear
again.
R Only use air-recirculation mode briefly, e.g.
if there are unpleasant outside odors or
when in a tunnel. The windows could oth-
erwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp in the 00D6button goes out. 130
Overview of climate control systemsClimate control

R
Only available on vehicles for Canada:
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.
R Vehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various cli-
mate control functions.
ECO start/stop function During automatic engine switch-off, the cli-
mate control system only operates at a
reduced capacity. If you require the full cli-
mate control output, you can switch off the
ECO start/stop function by pressing the ECO
button (Y page 146). Operating the climate control sys-
tems Switching 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 fog up.
Therefore, switch off climate control only
briefly
Air-conditioning system X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 143).
X To switch on: turn control0083clockwise to
the desired position (except position 0)
(Y page 127).
X To switch off: turn control0083counter-
clockwise to position 0(Y page 127). Dual-zone automatic climate control X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 143).
X To activate: press the0058button.
The indicator lamp in the 0058button lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the 0078button.
The indicator lamp in the 0078button goes
out. The previously selected settings are
restored.
X To deactivate: press the0078button.
The indicator lamp in the 0078button lights
up.
i Dual-zone automatic climate control:
switch on climate control primarily using
the 0058 button. 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-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. Operating the climate control systems
131Climate control

Activating/deactivating
X
To activate: press the005Abutton.
The indicator lamp in the 005Abutton lights
up.
X To deactivate: press the005Abutton.
The indicator lamp in the 005Abutton goes
out. The "Cooling with air dehumidification"
function has a delayed switch-off feature. 132
Operating the climate control systemsClimate cont
rol

Problems with the "Cooling with air dehumidification" function
Problem
Possible causes/consequences and
0050
0050Solutions The indicator lamp in
the
005A 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 2in the igni-
tion lock (Y page 143).
X Set the desired temperature.
X To activate: press the0058button.
The indicator lamp in the 0058button lights
up. Automatic air distribution and airflow
are activated. X
To switch to manual mode: press the
004F or004A button.
or X Press the 0097or0095 button.
The indicator lamp in the 0058button goes
out. Automatic air distribution and airflow
are deactivated. Setting the temperature
Air-conditioning system You can set the temperature for the entire
vehicle. The set temperature is automatically
maintained at a constant level.
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 143).
X To increase/reduce: turn control0043
clockwise or counter-clockwise
(Y page 127). Only change the temperature
setting in small increments. Start at 72 ‡
(22 †).
Dual-zone automatic climate control Different temperatures can be set for the
driver's and front-passenger sides. The set
temperature is automatically maintained at a
constant level.
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 143).
X To increase/reduce: turn thumbwheel0043
or 006D to the left or right (Y page 129). Only Operating the climate control systems
133Climate control