2015 MERCEDES-BENZ GLK-Class climate control

Setting the temperature
Dual-zone automatic climate control Different temperatures can be set for the
driver's and front-passenger sides.
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 149).
X To increase/reduce: turn thumbwheel0043
or 0084 to the left or right (Y page 133).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
3-zone automatic climate control 73-zone automatic climate control zones
You can select different temperature settings for the driver's and front-passenger sides as
well as for the rear compartment.
X Turn the SmartKey to position 2in the igni-
tion lock (Y page 149).
X To increase/reduce the temperature in
the front compartment: turn thumb-
wheel 0043or0084 to the left or right
(Y page 136).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
X To increase/reduce the temperature in
the rear compartment using the front
control panel: press the00D6button.
The indicator lamp in the 00D6button goes
out. X
Turn thumbwheel 0043to the left or right
(Y page 136).
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
X To increase/reduce the temperature in
the rear compartment using the rear
control panel: press the0063or0064
button on the rear control panel.
Only change the temperature setting in
small increments. Start at 72 ‡ (22 †).
i If you leave the vehicle parked for longer
than 30 minutes, the temperature setting
for the rear compartment then switches
back to 72 ‡ (22 †). Setting the air distribution
Air distribution settings Dual-zone climate control: the air distribution
can be set individually for the driver's and
front-passenger sides.
0061 Directs air through the defroster vents
009C Directs air through the center and side
air vents
009B Directs air through the footwell air
vents
009F Directs the airflow through the center
and side air vents as well as the foot-
well air vents 8
008F Directs the airflow to the entire vehicle
interior 9
0087 Directs the airflow through the center
and side air vents as well as the
defroster vents 9
0086 Directs air through the defroster and
footwell vents
i Regardless of the air distribution setting,
airflow is always directed through the side
air vents. The side air vents can only be
7 Canada only.
8 USA only.
9 Canada only. 140
Operating the climate control systemsClimate control

closed when the controls on the side air
vents are turned downwards.
Adjusting X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 149).
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 igni-
tion lock (Y page 149).
X To increase/reduce: press the0097or
0095 button.
i You can use 3-zone automatic climate
control to set the airflow in the rear com-
partment 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 tem-
perature setting for the driver's side is not
adopted for the front-passenger side and
the rear compartment.
When you press the buttons for temperature, airflow or air distribution, 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 tem- perature 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 wind-
shield or to defrost the inside of the wind-
shield 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 igni-
tion lock (Y page 149).
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
141Climate 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 to the
left or right (Y page 133), (Ypage 136).
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 con-
trol 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 dehu-
midification 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 dis-
play.
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 auto-
matically after several minutes.
If the battery voltage is too low, the rear win-
dow defroster may switch off.
Activating/deactivating X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 149).
X Press the 006Cbutton.
The indicator lamp in the 006Cbutton lights
up or goes out. 142
Operating the climate control systemsClimate control

Problems with the rear window defroster
Problem
Possible causes/consequences and
0050
0050Solutions The rear window
defroster has deactiva-
ted prematurely or can-
not 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-recircula-
tion 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 vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in particu-
lar at low temperatures. Only use air-recircu-
lation mode briefly to prevent the windows
from fogging up.
Activating/deactivating X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 149).
X To activate: press the0072button.
The indicator lamp in the 0072button lights
up.
i In the event of high pollution levels 10
or at
high outside temperatures, air-recircula-
tion mode is automatically activated. When
air-recirculation mode is activated auto-
matically, the indicator lamp in the 0072
button 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 auto-
matically:
R after approximately five minutes at out-
side temperatures below approximately
41 ‡ (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
41 ‡ (5 †) if the "Cooling with air dehu-
midification" function is activated Activating/deactivating the residual
heat function
General notes The residual heat function is only available in
vehicles for Canada with 3-zone 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 set interior temperature.
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.
10 3-zone automatic climate control only. Operating the climate control systems
143Climate control

Switching on/off
X
Turn the SmartKey to position 0in the igni-
tion lock (Y page 149) 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 automati-
cally:
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 out-
lets. 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 vents: turn the
adjuster in one of center air vents 0043to the
left.
X To close the center air vents: turn the
adjuster in one of center air vents 0043to the
right 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 the side air vent 0044to the left.
X To close a side air vent: turn the adjuster
in the side air vent 0044to the right until it
engages. Setting the glove box air vent
When automatic climate control is activated,
the glove box can be ventilated, for instance
to cool its contents. The level of airflow 144
Setting the air ventsClimate control

depends on the airflow and air distribution
settings.
! Close the air vent when heating the vehi-
cle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu-
midification" function. Otherwise, temper-
ature-sensitive items stored in the glove
box could be damaged. 0043
Air vent thumbwheel
0044 Air vent
X To open/close: turn thumbwheel 0043to the
left or right. Setting the rear-compartment air
vents 0043
Rear-compartment air vent thumbwheel
0044 Rear-compartment air vent, right
0087 Rear control panel, only for Canada with
3-zone automatic climate control
0085 Rear-compartment air vent, left X
To open/close: turn thumbwheel 0043up or
down. Setting the air vents
145Climate control Z

Uniform Tire Quality Grading Stand-
ards Overview of Tire Quality Grading
Standards
Uniform Tire Quality Grading Standards are
U.S. government specifications. Their pur-
pose is to provide drivers with uniform relia-
ble information on tire performance data. tire manufacturers have to grade tires using three
performance factors: tread wear 0043, tire trac-
tion 0044and heat resistance 0087. All tires sold
in North America are provided with the cor-
responding quality class mark on the sidewall of the tire, even though these regulations do
not apply to Canada.
i The actual values for tires are vehicle-
specific and may deviate from the values in
the illustration.
Where applicable, the tire grading informa-
tion can be found on the tire sidewall between
the tread shoulder and maximum tire width.
For example: Treadwear Traction Temperature
200 AA A
All passenger car tires must conform to the
statutory safety requirements in addition to
these grades. Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when tested under controlled conditions on a specified
U.S. government course. For example, a tire
graded 150 would wear one and one-half
times as well on the government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use, how-
ever, and may depart significantly from the
norm, due to variations in driving habits, ser-
vice practices and differences in road char-
acteristics and climate conditions. Traction
G
WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration, cor- nering, hydroplaning, or peak traction char-
acteristics.
The traction grades, from highest to lowest,
are AA, A, B, and C. Those grades represent
the tire's ability to stop on a wet surface as
measured under controlled conditions on
specified government test surfaces of asphalt
and concrete. A tire marked C may have poor
traction performance.
The safe speed on a wet, snow covered or icy road is always lower than on dry road surfa-
ces.
You should pay special attention to road con-
ditions when temperatures are around the
freezing point.
Mercedes-Benz recommends a minimum
tread depth of 00CFin (4 mm) for all four winter
tires (Y page 335) to maintain normal driving
characteristics in winter. Winter tires can
reduce the braking distance on snow-covered surfaces in comparison with summer tires.
Stopping distance, however, is still consider-
ably greater than when the road is not cov- Uniform Tire Quality Grading Standards
347Wheels and tires Z

X
Slide the right-hand front seat to its rear-
most position.
X Fold floor covering 0043upwards.
You will see VIN 0044.
The VIN can also be found in the following
locations:
R on the lower edge of the windshield
(Y page 373)
R on the vehicle identification plate
(Y page 372) Engine number
0043
Emission control information plate,
including the certification of both federal
and Californian emissions standards
0044 Engine number (stamped into the crank-
case)
0087 VIN (on the lower edge of the windshield) Service products and filling capaci-
ties Important safety notes
G
WARNING
Service products may be poisonous and haz-
ardous to health. There is a risk of injury.
Comply with instructions on the use, storage
and disposal of service products on the labels of the respective original containers. Always
store service products sealed in their original containers. Always keep service products out
of the reach of children. H
Environmental note
Dispose of service products in an environ-
mentally responsible manner.
Service products include the following: R Fuels (e.g. gasoline, diesel)
R Exhaust gas aftertreatment additives, e.g.
DEF
R Lubricants (e.g. engine oil, transmission oil)
R Coolant
R Brake fluid
R Windshield washer fluid
R Climate control system refrigerant
Comply with all valid regulations with respect to handling, storing, and disposing of service
fluids.
Components and service products must be
matched. You should therefore only use prod- ucts that have been tested and approved by
Mercedes-Benz.
Information about tested and approved prod- ucts can be obtained from an authorized
Mercedes-Benz Center or on the Internet at
http://bevo.mercedes-benz.com.
You can recognize service products approved
by Mercedes-Benz by the following inscrip-
tion on the containers:
R MB-Freigabe (e.g. MB-Freigabe 229.51)
R MB Approval (e.g. MB Approval 229.51)
Other designations or recommendations indi- cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g.
MB 229.5). They have not necessarily been
approved by Mercedes-Benz. Fuel
Important safety notes G
WARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion. Service products and filling capacities
373Technical data
Z