cooling MERCEDES-BENZ GLK SUV 2012 Owners Manual

1, 2, 3 ...
12-button multifunction steering
wheel Operating the on-board computer .228
Overview .......................................... 36
12 V socket
see Socket
4-button multifunction steering
wheel
Operating the on-board computer .225
Overview .......................................... 35
4ETS
see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 213A
ABS (Anti-lock Braking System) Display message (12-button mul-
tifunction steering wheel) ..............252
Display message (4-button multi-
function steering wheel) ................247
Function/notes ................................ 65
Important safety notes ....................65
Warning lamp ................................. 286
Activating/deactivating air-recir-
culation mode .................................... 135
Activating/deactivating cooling
with air dehumidification .................131
Active Blind Spot Assist Function/notes ............................. 207
Switching on/off (on-board com-
puter, 12-button multifunction
steering wheel) .............................. 237
Towing a trailer .............................. 210
Active Driving Assistance package .207
Active Lane Keeping Assist Display message (12-button mul-
tifunction steering wheel) ..............273
Function/notes ............................. 210
Switching on/off (on-board com-
puter, 12-button multifunction
steering wheel) .............................. 238
Towing a trailer ......................207, 213
Active light function .........................114Active Park Assist
Display message ............................ 273
Active Parking Assist
Important safety notes ..................192
Towing a trailer .............................. 196
Active Service System
see ASSYST PLUS
Adaptive brake lamps .........................67
Adaptive Highbeam Assist Display message (12-button mul-
tifunction steering wheel) ..............263
Function/notes ............................. 116
Adaptive Main-beam Assist
Switching on/off (on-board com-
puter) ............................................. 240
AdBlue ®
Display message (12-button mul-
tifunction steering wheel) ..............269
Display message (4-button multi-
function steering wheel) ................266
Filling capacity ............................... 369
Notes ............................................. 368
Service indicator ............................ 313
AdBlue ®
service indicator ................313
Additional speedometer ...................239
Additives (engine oil) ........................370
Adjusting the headlamp range .........112
Airbags Front airbag (driver, front
passenger) ....................................... 46
Important safety guidelines .............44
Kneebag .......................................... .46
Pelvis airbag .................................... 47
Sidebag ............................................ 47
Triggering ......................................... 43
Windowba g...................................... 48
Air-conditioning system
see Climate control
Air filter
Display message (12-button mul-
tifunction steering wheel) ..............268
Display message (4-button multi-
function steering wheel) ................265
Air pressure
see Tyre pressure 4
Index

Bulbs
see Changing bulbs C
Calling up a fault see Display messages
Car
see Vehicle
Care
Automatic car wash .......................318
Carpets .......................................... 323
Display ........................................... 322
Exterior lighting ............................. 320
Gear or selector lever ....................322
High-pressure cleaner .................... 318
Interior ........................................... 322
Matt paintwork .............................. 319
Notes ............................................. 317
Paint .............................................. 319
Plastic trim .................................... 322
Reversing camera ..........................321
Roof lining ...................................... 323
Seat belt ........................................ 323
Seat cover ..................................... 323
Sensors ......................................... 321
Steering wheel ............................... 322
Tail pipes ....................................... 321
Trim pieces .................................... 323
Washing by hand ........................... 318
Wheels ........................................... 319
Windows ........................................ 320
Wiper blades .................................. 320
Wooden trim .................................. 323
Car wash (care) ................................. 318
CD player/CD changer (12-button
multifunction steering wheel) .......... 233
Central locking Automatic locking (on-board com-
puter) ............................................. 241
Locking/unlocking (key) ..................76
Centre console
Lower section .................................. 38
Upper section .................................. 37
Changing bulbs
Cornering light function .................121
Dipped-beam headlamps ...............120
Important safety notes ..................118Main-beam headlamps ................... 120
Overview of bulb type
s.................. 119
Parking lamps (front) .....................120
Reversing lamps ............................ 121
Standing lamps .............................. 120
Turn signals (front) ......................... 120
Turn signals (rear) ..........................121
Child-proof locks
Important safety notes ....................64
Rear doors ....................................... 64
Children
In the vehicle ................................... 54
Restraint systems ............................ 54
Child seat
Automatic recognition .....................56
ISOFIX .............................................. 57
On the front-passenger sea t............ 55
Problem (malfunction) .....................60
Recommendations ...........................62
Suitable positions ............................ 60
Top Tether ....................................... 58
Cigarette lighter ................................ 307
Cleaning Mirror turn signal ........................... 320
Trailer tow hitch ............................. 321
Climate control
Auxiliary heating/ventilation .......... 137
Controlling automatically ...............132
Convenience opening/closing
(air-recirculation mode )................. 136
Cooling with air dehumidification ..131
Demisting the windows .................. 134
Demisting the windscreen .............134
Important safety notes ..................128
Indicator lamp ................................ 132
Information on using
THERMOTRONIC automatic cli-
mate control .................................. 131
Notes on using THERMATIC auto-
matic climate control .....................129
Overview of systems ......................128
Problems with cooling with air
dehumidification ............................ 132
Problem with the rear window
heating .......................................... 135
Rear control panel .........................130
Setting the air distribution .............133
Setting the airflow .........................134 Index
7

Setting the air vents
......................141
Setting the climate mode .............. .132
Setting the temperature ................132
Switching air-recirculation mode
on/off ............................................ 135
Switching on/off ........................... 131
Switching residual heat on/off ......136
Switching the rear window heat-
ing on/off ...................................... 135
Switching the ZONE function on/
off .................................................. 134
THERMATIC automatic climate
control (2-zone) ............................. 129
THERMOTRONIC (3-zone) auto-
matic climate control .....................130
Clock
Setting (4-button multifunction
steering wheel) .............................. 227
Coat hooks ......................................... 303
Cockpit Overview .......................................... 30
see Instrument cluster
Collapsible emergency spare
wheel
see Emergency spare wheel
COMAND Online
see separate operating instructions
Combination switch ..........................113
Constant headlamp mode see Daytime driving lights
Consumption statistics
On-board computer (12-button
multifunction steering wheel) ........230
On-board computer (4-button
multifunction steering wheel) ........226
Convenience closing feature ..............90
Convenience opening/closing (air-
recirculation mode) ........................... 136
Convenience opening feature ............90
Coolant (engine) Checking the level .........................316
Display message (12-button mul-
tifunction steering wheel) ..............267
Display message (4-button multi-
function steering wheel) ................264
Important safety notes ..................371
Temperature gauge (12-button
multifunction steering wheel) ........227 Temperature gauge (4-button
multifunction steering wheel)
........224
Warning lamp ................................. 292
Cooling
see Climate control
Cornering lamps
Changing bulbs .............................. 121
Cornering light function
Display message (12-button mul-
tifunction steering wheel) ..............260
Display message (4-button multi-
function steering wheel) ................257
Function/notes ............................. 115
Crash-responsive emergency light-
ing ....................................................... 118
Cruise control Cruise control lever .......................174
Deactivating ................................... 175
Display message (12-button mul-
tifunction steering wheel) ..............275
Display message (4-button multi-
function steering wheel) ................270
Driving system ............................... 173
Important safety notes ..................173
LIM indicator lamp .........................174
Selecting ........................................ 174
Setting a speed .............................. 175
Storing and maintaining current
speed ............................................ .174
Cup holder
Centre console .............................. 305
Important safety notes ..................305
Rear compartment .........................305 D
Dashboard lighting see Instrument cluster lighting
Data
see Technical data
Date
Setting (4-button multifunction
steering wheel) .............................. 227
Daytime driving lamps
Switching on/off (on-board com-
puter, 12-button multifunction
steering wheel) .............................. 2398
Index

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 27). Overview of climate control systems
Important safety notes
G
WARNING
Observe the settings recommended on the
following pages. The windows could other-
wise mist up. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident.
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control is only operational when the
engine is running. The system only works
optimally if the side windows and the roof are
closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off (Y page 136).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature (Y page 90). This
will speed up the cooling process and the
desired vehicle interior temperature will be
reached more quickly.
i The integrated filter can filter out most
particles of dust and completely filters out
pollen. 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 it
depends on environmental conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Service Booklet.
i It is It is possible that the dehumidification
function of the climate control system may
be activated automatically an hour after the
key has been removed. The vehicle is then
ventilated for 30 minutes. 128
Overview of climate control systemsClimate control

Control panel for THERMATIC automatic climate control (2-zone)
:
Setting the temperature, left (Y page 132)
; Demisting the windscreen (Y page 134)
= Switching the ZONE function on/off (Y page 134)
? Activating/deactivating cooling with air dehumidification (Y page 131)
A Switching the rear window heating on/off (Y page 135)
B Setting the temperature, right (Y page 132)
C Activating/deactivating air-recirculation mode (Y page 135)
D Setting the air distribution (Y page 133)
E Increasing the airflow (Y page 134)
F Reducing the airflow ( Ypage 134)
G Switching climate control on/off (Y page 131)
H Setting climate control to automatic mode (Y page 132)Notes on using THERMATIC automatic
climate control
The following contains notes and recommen-
dations on optimum use of THERMATIC auto-
matic climate control.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps in the
à and¿ buttons light up.
R Set the temperature to 22 †.
R Only use the demisting function briefly until
the windscreen is clear again. R
Only use the air-recirculation mode 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 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 ábutton goes out. Overview of climate control systems
129Climate control Z

Control panel for THERMOTRONIC automatic climate control (3-zone)
Front control panel
: Setting the temperature, left (Y page 132)
; Demisting the windscreen (Y page 134)
= Activating/deactivating the residual heat function (Y page 136)
? Activating/deactivating cooling with air dehumidification (Y page 131)
A Switching the rear window heating on/off (Y page 135)
B Setting the temperature, right (Y page 132)
C Switching the ZONE function on/off (Y page 134)
D Switching climate control on/off (Y page 131)
E Setting the air distribution (Y page 133)
F Increasing the airflow (Y page 134)
G Reducing the airflow ( Ypage 134)
H Setting the climate mode (Y page 132)
I Activating/deactivating air-recirculation mode (Y page 135)
J Setting climate control to automatic mode (Y page 132)
Rear control panel
K Increasing the airflow (Y page 134)
L Reducing the airflow ( Ypage 134)
M Display
N Reducing the temperature ( Ypage 132)
O Increasing the temperature (Y page 132)130
Overview of climate control systemsClimate control

Notes on using THERMOTRONIC auto-
matic climate control
The following contains instructions and rec-
ommendations to enable you to get the most
out of your THERMOTRONIC automatic cli-
mate control.
R Activate climate control using the Ãand
¿ buttons. The indicator lamps in the
à and¿ buttons light up.
R In automatic mode, you can also use the
ñ button to set a climate mode
(FOCUS/MEDIUM/DIFFUSE). The
MEDIUM level is recommended.
R Set the temperature to 22 †.
R Only use the demisting function briefly until
the windscreen is clear again.
R Only use the air-recirculation mode 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 Use the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side and the rear com-
partment as well. The indicator lamp in the
á button goes out.
R Use the residual heat function if you want
to heat or ventilate the vehicle interior
when the ignition is switched off. The resid-
ual heat function can only be activated or
deactivated with the ignition switched off. Operating the climate control system
Switching climate control on/off
Points to observe before use i
If climate control is switched off, the air
supply and air circulation are also switched
off. Only use this setting for a brief period.
The windows could otherwise mist up.
i Switch on climate control primarily using
the à button ( Ypage 132). Switching on/off X
Turn the key to position 2in the ignition
lock.
X To switch on: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
X Press the ^button.
The indicator lamp in the ^button goes
out. The previous settings are reactivated.
X To switch off: press the^button.
The indicator lamp in the ^button lights
up. Activating/deactivating the cooling
with air dehumidification function
Points to observe before use G
WARNING
If the "cooling with air dehumidification" func-
tion is deactivated, the air inside the vehicle
will not be cooled (during warm weather) or
dehumidified. The windows could mist up
more quickly. This may prevent you from
observing the traffic conditions, thereby caus-
ing an accident.
The cooling with air dehumidification function
is only available when the engine is running.
The air inside the vehicle is cooled and dehu-
midified according to the temperature selec-
ted.
Condensation may drip from the underside of
the vehicle when cooling mode is active. This
is normal and not a sign that there is a mal-
function.
i The cooling with air dehumidification
function uses refrigerant R134a. This
refrigerant does not contain chlorofluoro-
carbons, and therefore does not damage
the ozone layer. Operating the climate control system
131Climate control Z

Switching on/off
X
To activate: press the¿button.
The indicator lamp in the ¿button lights
up.
X To deactivate: press the¿button.
The indicator lamp in the ¿button goes
out. The cooling with air dehumidification
function has a delayed switch-off feature.
Problems with the cooling with air
dehumidification function When you press the
¿button, the indica-
tor lamp in the button flashes three times or
remains off. You can no longer switch on the
cooling with air dehumidification function.
X Visit a qualified specialist workshop. Setting climate control to automatic
mode
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 desired, cooling with air dehu-
midification can be deactivated.
X Turn the key to position 2in the ignition
lock.
X Set the desired temperature.
X To activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow
are activated.
X To select manually: press the_but-
ton.
or
X Press the KorI button.
The indicator lamp in the Ãbutton goes
out. Automatic air distribution and airflow
are deactivated. Setting the climate mode
This function is only available with the
THERMOTRONIC automatic climate control.
In automatic mode you can select the follow-
ing climate modes:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUSE low airflow that is set slightly warmer and with less of a draught
X Turn the key to position 2in the ignition
lock.
X Press the Ãbutton.
X Press the ñbutton repeatedly until the
desired climate mode appears in the dis-
play. Setting the temperature
THERMATIC automatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X
Turn the key to position 2in the ignition
lock.
X To increase/reduce: turn control:or
B clockwise or anti-clockwise
(Y page 129).
Only change the temperature setting in
small increments. Start at 22 †. 132
Operating the climate control systemClimate control

Setting the airflow
X Turn the key to position 2in the ignition
lock.
X To increase/reduce: press theKor
I button. Switching the ZONE function on/off
X To switch on: press theábutton.
The indicator lamp in the ábutton lights
up.
THERMATIC automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side.
THERMOTRONIC automatic climate con-
trol: the temperature setting for the driver's
side is not adopted for the front-passenger
side and the rear compartment.
When the buttons for temperature, airflow or
air distribution are activated, the temperature
setting on the driver's side is not adopted for
the other climate control zones.
X To switch off: press theábutton.
The indicator lamp in the ábutton goes
out.
THERMATIC automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side.
THERMOTRONIC automatic climate con-
trol: the temperature setting for the driver's
side is adopted for the front-passenger side
and the rear compartment. Demisting the windscreen
You can use this function to demist the wind-
screen or to demist the inside of the wind-
screen and the side windows.
i You should only select the demisting
function until the windscreen is clear again. X
Turn the key to position 2in the ignition
lock.
X To activate: press the¬button.
The indicator lamp in the ¬button lights
up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windscreen and
front side windows
R air-recirculation mode off
X To deactivate: press the¬button.
The indicator lamp in the ¬button goes
out. The previous settings are reactivated.
Air-recirculation mode remains deactiva-
ted.
or
X Press the Ãbutton.
The indicator lamp in the ¬button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn temperature control :orB clock-
wise or anti-clockwise (Y page 129),
(Y page 130).
or
X Press the KorI button. Demisting the windows
Windows misted up on the inside X
Activate the ¿cooling with air dehu-
midification function.
X Activate automatic mode Ã.
X If the windows continue to mist up, activate
the demisting function (Y page 134).
i You should only select this setting until
the windscreen is clear again. 134
Operating the climate control systemClimate control

i
Air-recirculation mode deactivates auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
5 †
R after approximately five minutes if cool-
ing with air dehumidification is deactiva-
ted
R after approximately 30 minutes at out-
side temperatures above approximately
5 † with the "cooling with air dehumidi-
fication" function switched on. Convenience opening/closing using
the air-recirculation button G
WARNING
Make sure that nobody can become trapped
between the side window and the door frame
as the side windows are opened and closed.
Make sure that all objects and body parts are
clear of the side windows when they are being
opened or closed. You or the objects could be
drawn in or become trapped between the side
window and the door frame as the window
moves. If there is a risk of entrapment, oper-
ate the Wswitch to move the side window
in the opposite direction.
Make sure that nobody can become trapped
as the panorama sliding sunroof is opened
and closed. If there is a risk of entrapment,
operate the 3switch to move the pano-
rama sliding sunroof in the opposite direction.
X Convenience closing feature: press and
hold the gbutton until the side win-
dows and the panorama sliding sunroof are
closed.
The indicator lamp in the gbutton lights
up. Air-recirculation mode is activated.
X Convenience opening feature: press and
hold the gbutton until the side win-
dows and the panorama sliding sunroof
have opened. The side windows and the panorama sliding sunroof move back to
their original position.
The indicator lamp in the
gbutton goes
out. Air-recirculation mode is deactivated.
i If you open the side windows or the pan-
orama sliding sunroof manually after clos-
ing with the convenience closing feature,
they will remain in this position when
opened using the convenience opening fea-
ture. Activating/deactivating the residual
heat function
The "Residual heat" function is only available
with THERMOTRONIC automatic climate con-
trol.
It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutes after the
engine has been switched off. The heating
time depends on the temperature that has
been set for the vehicle interior.
i The blower will run at a low speed regard-
less of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X Turn the key to position 0in the ignition
lock or remove it.
X To activate: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
X To deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
i Residual heat is deactivated automati-
cally:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R when the auxiliary heating is activated 136
Operating the climate control systemClimate control