2014 MERCEDES-BENZ GLK-Class window

Notes on using 3-zone automatic
climate control
Automatic climate control The following contains instructions and
recommendations to enable you to get the
most out of your automatic climate control.
R Activate climate control using the 0058and
005A buttons. The indicator lamps in the
0058 and005A buttons light up.
R In automatic mode, you can also use the
00F0 button to adjust airflow (FOCUS/
MEDIUM/DIFFUSE). The MEDIUM level is
recommended.
R Set the temperature to 72 ‡ (22 †).
R Only use the "windshield defrosting"
function 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
otherwise fog up, since no fresh air is drawn
into the vehicle in air-recirculation mode.
R Use the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side and the rear
compartment as well. The indicator lamp in
the 00D6 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
residual heat function can only be activated
or deactivated with the ignition switched
off.
ECO start/stop function During automatic engine switch-off, the ECO
start/stop function only operates at a
reduced capacity. If you require the full
climate control output, you can switch off the
ECO start/stop function by pressing the ECO
button ( Ypage 150). Operating the climate control
systems
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
i Switch on climate control primarily using
the 0058 button ( Ypage 135).
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock ( Ypage 145).
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. Activating/deactivating cooling with
air dehumidification
General notes If you deactivate the "Cooling with air-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
deactivate the cooling with air-
dehumidification function only briefly.
The "Cooling with air dehumidification"
function is only available when the engine is
running. The air inside the vehicle is cooled Operating the climate control systems
133Climate control

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
"Cooling with air
dehumidification"
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 In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the
temperature 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-
dehumidification" function, the air inside the
vehicle will not be cooled. The air inside the
vehicle will also not be dehumidified. The
windows can fog up more quickly. Therefore,
deactivate the cooling with air-
dehumidification function only briefly.
Activating/switching X
Turn the SmartKey to position 2in the
ignition lock (Y page 145).
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.
3-zone automatic climate control: when
automatic mode is activated, you can adjust
airflow (Y page 135). X
To select manually: press the008F
button.
or
X Press the 0097or0095 button.
The indicator lamp in the 0058button goes
out. Automatic air distribution and airflow
are deactivated. Adjusting airflow
This function is only available with 3-zone
automatic climate control.
In automatic mode you can select the
following airflow settings:
FOCUS high airflow that is set slightly cooler
MEDIUM medium airflow, standard setting
DIFFUSE low airflow that is set slightly warmer and with less draft
X Turn the SmartKey to position 2in the
ignition lock (Y page 145).
X Press the 0058button.
X Press the 00F0button repeatedly until the
required airflow setting appears in the
display. Operating the climate control systems
135Climate control

Adjusting
X
Turn the SmartKey to position 2in the
ignition lock (Y page 145).
X Press the 008Fbutton repeatedly until the
desired symbol appears in the display.
The indicator lamp in the 0058button goes
out. Automatic control is deactivated and
the air distribution is controlled according
to the selected setting. Setting the airflow
X Turn the SmartKey to position 2in the
ignition lock (Y page 145).
X To increase/reduce: press the0097or
0095 button.
i You can use 3-zone automatic climate
control to set the airflow in the rear
compartment separately.
If the battery is not sufficiently charged,
blower output may be reduced. As soon as
the battery is sufficiently charged, full blower
output will be available. Switching the ZONE function on/off
This function is only available in vehicles for
Canada.
X To activate: press the00D6button.
The indicator lamp in the 00D6button lights
up.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
not adopted for the front-passenger side.
3-zone automatic climate control: 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 pressed, the temperature
setting on the driver's side is not adopted for
the other climate control zones. X
To deactivate: press the00D6button.
The indicator lamp in the 00D6button goes
out.
Dual-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side.
3-zone automatic climate control: the
temperature setting for the driver's side is
adopted for the front-passenger side and
the rear compartment. Defrosting the windshield
You can use this function to defrost the
windshield or to defrost the inside of the
windshield and the side windows.
i You should only select the "windshield
defrosting" function until the windshield is
clear again.
X Turn the SmartKey to position 2in the
ignition lock (Y page 145).
X To activate: press the0064button.
The indicator lamp in the 0064button lights
up.
The climate control system switches to the
following functions:
R high airflow
R high temperature
R air distribution to the windshield and
front side windows
R air-recirculation mode off
If the battery is not sufficiently charged,
blower output may be reduced. As soon as
the battery is sufficiently charged, full blower
output will be available.
X To deactivate: press the0064button.
The indicator lamp in the 0064button goes
out. The previously selected settings are
restored. Air-recirculation mode remains
deactivated.
or Operating the climate control systems
137Climate control

X
Press the 0058button.
The indicator lamp in the 0064button goes
out. Airflow and air distribution are set to
automatic mode.
or
X Turn temperature control 0043or0084
clockwise or counter-clockwise
(Y page 129), (Y page 132).
or
X Press the 0097or0095 button. MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
When you activate MAX COOL, climate
control switches to the following functions:
R maximum cooling
R maximum airflow
R air-recirculation mode on
X To activate: press the00C9button.
The indicator lamp in the button lights up.
X To activate: press the00C9button again.
The indicator lamp goes out. The previously
selected settings are restored. Defrosting the windows
Windows fogged up on the inside X
Activate the 005Acooling with air
dehumidification function.
X Activate automatic mode 0058.
X Adjust the side air vents so that the warmed
air is directed to the side windows.
X If the windows continue to fog up, activate
the 0064 "Windshield defrosting" function.
i You should only select this setting until
the windshield is clear again. Windows fogged up on the outside X
Activate the windshield wipers.
X Press the 008Fbutton repeatedly until the
009B or009C symbol appears in the
display.
X Adjust the side air vents so that no air is
directed to the side windows. Rear window defroster
General notes The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the rear window is clear. Otherwise,
the rear window defroster switches off
automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
Activating/deactivating
X
Turn the SmartKey to position 2in the
ignition lock (Y page 145).
X Press the 006Cbutton.
The indicator lamp in the 006Cbutton lights
up or goes out. 138
Operating the climate control systemsClimate control

Problems with the rear window defroster
Problem Possible causes/consequences and
0050
0050Solutions The rear window
defroster has
deactivated
prematurely or cannot
be activated. The battery has not been sufficiently charged.
X
Switch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again. Activating/deactivating air-
recirculation mode
General notes You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up.
The operation of air-recirculation mode is the
same for all control panels.
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 145).
X To activate: press the0072button.
The indicator lamp in the 0072button lights
up.
i In the event of high pollution levels 12
or at
high outside temperatures, air-
recirculation mode is automatically
activated. When air-recirculation mode is
activated automatically, the indicator lamp
in the 0072button is not lit.
Outside air is added after about
30 minutes. X
To deactivate: press the0072button.
The indicator lamp in the 0072button goes
out.
i Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡(5 †) if the "Cooling
with air dehumidification" function is
activated Activating/deactivating the residual
heat function
General notes The residual heat function is only available in
vehicles for Canada with automatic climate
control.
It is possible to make use of the residual heat
of the engine to continue heating the vehicle
for approximately 30 minutes after the engine
has been switched off. The heating time
depends on the temperature that has been
set.
i
The blower will run at a low speed
regardless of the airflow setting.
12 3-zone automatic climate control only. Operating the climate control systems
139Climate control

i
If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
Activating/deactivating X
Turn the SmartKey to position 0in the
ignition lock (Y page 145) or remove it.
X To activate: press the004Bbutton.
The indicator lamp in the 004Bbutton lights
up.
i If the residual heat function is activated,
the windows may fog up on the inside.
X To deactivate: press the004Bbutton.
The indicator lamp in the 004Bbutton goes
out.
i Residual heat is deactivated
automatically:
R after approximately 30 minutes
R when the ignition is switched on
R if the battery voltage drops Setting the air vents
Important safety notes
G
WARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air
outlets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
R keep the air inlet between the windshield
and the hood free of blockages, such as ice,
snow or leaves.
R never cover the air vents or air intake grilles
in the vehicle interior. i
For virtually draft-free ventilation, adjust
the sliders of the air vents to the center
position. Setting the center air vents
X
To open the center air vent: turn the
adjuster in one of center air vents 0043
counter-clockwise.
X To close the center air vent: turn the
adjuster in one of center air vents 0043
clockwise until it engages. Setting the side air vents
0043
Side window defroster vent
0044 Side air vent
X To open a side air vent: turn the adjuster
in side air vent 0044counter-clockwise.
X To close a side air vent: turn the adjuster
in side air vent 0044clockwise until it
engages. 140
Setting the air ventsClimate control

becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open
a window on the side of the vehicle that is not
facing into the wind.
Have your vehicle winterproofed at a qualified
specialist workshop at the onset of winter.
Observe the notes in the "Winter operation"
section (Y page 332).
Driving with summer tires Observe the notes in the "Winter operation"
section (Y page 332).
Slippery road surfaces G
WARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine
braking on a slippery road surface.
Drive particularly carefully on slippery road
surfaces. Avoid sudden acceleration, steering
and braking maneuvers. Do not use the cruise
control or DISTRONIC PLUS.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
X Shift the transmission to position N.
i For more information on driving with
snow chains, see (Y page 333).
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for that purpose.
Changes in the outside temperature are
displayed after a short delay.
Indicated temperatures just above the
freezing point do not guarantee that the road surface is free of ice. The road may still be icy,
especially in wooded areas or on bridges. The
vehicle could skid if you fail to adapt your
driving style. Always adapt your driving style
and drive at a speed to suit the prevailing
weather conditions.
You should pay special attention to road
conditions when temperatures are around
freezing point.
Off-road driving
Important safety notes G
WARNING
If you drive on a steep incline at an angle or
turn when driving on an incline, the vehicle
could slip sideways, tip and rollover. There is
a risk of an accident.
Always drive on a steep incline in the line of
fall (straight up or down) and do not turn the
vehicle.
When driving off-road, sand, mud and water,
possibly mixed with oil, for example, could get
into the brakes. This could result in a reduced
braking effect or in total brake failure and also
in increased wear and tear. The braking
characteristics change depending on the
material ingressing the brakes. Clean the
brakes after driving off-road. If you detect a
reduced braking effect or grinding noises,
have the brake system checked in a qualified
specialist workshop as soon as possible.
Adapt your driving style to the different
braking characteristics.
Driving off-road increases the likelihood of
damage to the vehicle, which, in turn, can lead
to failure of the mechanical assembly or
systems. Adapt your driving style to suit the
terrain conditions. Drive carefully. Have
damage to the vehicle rectified immediately
at a qualified specialist workshop.
Do not switch to transmission position N
when driving off-road. If you try to brake the
vehicle using the service brake, you could
lose control of the vehicle. If the gradient is Driving tips
171Driving and parking Z

X
Couple up the trailer.
X Establish all electrical connections. Towing a trailer
There are numerous legal requirements
concerning the towing of a trailer, e.g. speed
restrictions. Make sure that your car/trailer
combination complies with the local
regulations:
R in your place of residence
R in the location to which you are driving
The police and local authorities can provide
reliable information.
Observe the following when towing a trailer:
R To gain driving experience and to become
accustomed to the new handling
characteristics, you should practice the
following in a traffic-free location:
- cornering
- stopping
- backing up
R Before driving, check:
-the trailer tow hitch
- the safety switch for braked trailers
- the safety chains
- electrical connections
- the lights
- the wheels
R Adjust the exterior mirrors to provide an
unobstructed view of the rear section of the
trailer.
R If the trailer has electronically controlled
brakes, pull away carefully. Brake manually
using the brake controller and check
whether the brakes function correctly.
R Secure any objects on the trailer to prevent
the cargo from slipping when the vehicle is
in motion.
R When you couple up a trailer, check at
regular intervals that the load is firmly
secured. If the trailer is equipped with trailer lights and brakes, check the trailer
to ensure that these are working.
R Bear in mind that the handling will be less
stable when towing a trailer than when
driving without one. Avoid sudden steering
movements.
R The vehicle/trailer combination is heavier,
accelerates more slowly, has a decreased
gradient climbing capability and a longer
braking distance.
It is more susceptible to side winds and
requires more careful steering.
R If possible, avoid abrupt braking. Depress
the brake pedal moderately at first, so that
the trailer can activate its own brakes. Then
increase the pressure on the brake pedal.
R If the automatic transmission repeatedly
shifts between gears on uphill or downhill
gradients, shift to a lower gear using the
left-hand steering wheel paddle shifter.
A lower gear and lower speed reduce the
risk of engine failure.
R When driving downhill, shift to a lower gear
to utilize the engine's braking effect.
Avoid continuous brake application as this
may overheat the vehicle brakes and, if
installed, the trailer brakes.
R If the coolant temperature increases
dramatically while the air-conditioning
system is switched on, switch off the air-
conditioning system.
Coolant heat can additionally be dissipated
by opening the windows and by setting the
blower fan and the interior temperature to
maximum.
R When overtaking, pay particular attention
to the extended length of your vehicle/
trailer combination.
Due to the length of the vehicle/trailer
combination, you require additional road
space in relation to the vehicle you are
overtaking, before you can change back to
the original lane. Towing a trailer
215Driving and parking Z