climate control MERCEDES-BENZ GLK-CLASS SUV 2015 Owner's Manual

Switching on/off
XTurn the key to position 0 in the ignition
lock ( Y page 149) or remove it.
X To activate: press the Ì button.
The indicator lamp in the Ì button lights
up.
iIf the residual heat function is activated,
the windows may fog up on the inside.
X To deactivate: press the Ì button.
The indicator lamp in the Ì button goes
out.
iResidual 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
GWARNING
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.
iFor 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 : to the
left.
X To close the center air vents: turn the
adjuster in one of center air vents : to the
right until it engages.
Setting the side air vents
:Side window defroster vent
;Side air vent
X To open a side air vent: turn the adjuster
in the side air vent ; to the left.
X To close a side air vent: turn the adjuster
in the side air vent ; to 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
144Setting the air vents
Climate 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.
:Air vent thumbwheel
;Air vent
X To open/close: turn thumbwheel : to the
left or right.
Setting the rear-compartment air
vents
:Rear-compartment air vent thumbwheel
;Rear-compartment air vent, right
=Rear control panel, only for Canada with
3-zone automatic climate control
?Rear-compartment air vent, left X
To open/close: turn thumbwheel : up or
down.
Setting the air vents145
Climate 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. tiremanufacturers have to grade tires using three
performance factors: tread wear :, tire trac-
tion ; and heat resistance =. 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.
iThe 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:
TreadwearTractionTemperature
200AAA
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
GWARNING
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 ã in (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 Standards347
Wheels and tires
Z

XSlide the right-hand front seat to its rear-
most position.
X Fold floor covering : upwards.
You will see VIN ;.
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
:Emission control information plate,
including the certification of both federal
and Californian emissions standards
;Engine number (stamped into the crank-
case)
=VIN (on the lower edge of the windshield)
Service products and filling capaci-
ties
Important safety notes
GWARNING
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.
HEnvironmental 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
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
Service products and filling capacities373
Technical data
Z

Filling capacities
ModelCapacity
GLK 250 BlueTEC
4MATICApprox. 10.4 US qt(9.8 l)
GLK 350
GLK 350 4MATICApprox. 8.9 US qt(8.4 l)
Windshield washer system
Important safety notes
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or
MB WinterFit. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
! Do not add distilled or de-ionized water to
the washer fluid container. Otherwise, the
level sensor may be damaged.
! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The spray nozzles may otherwise become
blocked.
When handling washer fluid, observe the
important safety notes on service products
( Y page 373).
At temperatures above freezing:
X Fill the washer fluid reservoir with a mixture
of water and windshield washer fluid, e.g.
MB SummerFit.
X Add 1 part MB SummerFit to 100 parts
water. At temperatures below freezing:
X Fill the washer fluid reservoir with a mixture
of water and washer fluid, e.g. MB Winter-
Fit.
For the correct mixing ratio refer to the
information on the antifreeze reservoir.
iAdd windshield washer fluid, e.g. MB
SummerFit or MB WinterFit, to the washer
fluid all year round.
Climate control system refrigerant
Important safety notes
The climate control system of your vehicle is
filled with refrigerant R