ad blue MERCEDES-BENZ GLK-Class 2015 X204 Owner's Manual

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Further information about Mercedes-Benz
vehicles and about Daimler AG can be found
on the following websites:
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only) Editorial office
© Daimler AG: Not to be reprinted, translated
or otherwise reproduced, in whole or in part,
without written permission from Daimler AG. Vehicle manufacturer
Daimler AG
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70327 Stuttgart
Germany
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of DOLBY Laboratories.
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In this Operator's Manual you will find the fol-
lowing symbols: G
WARNING
Warning notes make you aware of dangers
which could pose a threat to your health or
life, or to the health and life of others. H
Environmental note
Environmental notes provide you with infor-
mation on environmentally aware actions or
disposal.
! Notes on material damage alert you to
dangers that could lead to damage to your
vehicle.
i Practical tips or further information that
could be helpful to you. X
This symbol indicates an instruction
that must be followed.
X Several of these symbols in succes-
sion indicate an instruction with sev-
eral steps.
(Y
page) This symbol tells you where you can
find more information about a topic.
YY This symbol indicates a warning or an
instruction that is continued on the
next page.
Dis‐
Dis‐
play play This font indicates a display in the
multifunction display/COMAND dis-
play.
Parts of the software in the vehicle are pro-
tected by copyright ©
2005
The FreeType Project
http://www.freetype.org. All rights
reserved.
As at 23.10.2013

Service message ............................ 304
Special service requirements ......... 305
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 75
Function ........................................... 75
Switching off the alarm .................... 75
ATTENTION ASSIST
Activating/deactivating ................. 229
Display message ............................ 251
Function/note s............................. 202
Audio menu (on-board com-
puter) .................................................. 226
Audio system see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 246
see Lights
Automatic car wash (care) ............... 306
Automatic engine start (ECO start/
stop function) .................................... 153
Automatic engine switch-off (ECO
start/stop function) .......................... 153
Automatic headlamp mode .............. 117
Automatic transmission Accelerator pedal position ............. 159
Automatic drive program ............... 160
Changing gear ............................... 159
DIRECT SELECT lever ..................... 156
Display message ............................ 258
Driving tips .................................... 159
Emergency running mode .............. 162
Engaging drive position .................. 158
Engaging neutral ............................ 157
Engaging park position automati-
cally ............................................... 157
Engaging reverse gear ................... 157
Engaging the park position ............ 157
Kickdown ....................................... 159
Manual drive progra m.................... 160
Overview ........................................ 156
Problem (malfunction) ................... 162
Program selector button ................ 159
Pulling away ................................... 151 Starting the engine ........................ 151
Steering wheel paddle shifters ...... 160
Trailer towing ................................. 159
Transmission position display ........ 157
Transmission positions .................. 158
Automatic transmission emer-
gency mode ....................................... 162 B
Backup lamp Changing bulb s.............................. 125
Display message ............................ 245
Bag hook ............................................ 278
Ball coupling Installing ........................................ 214
Removing ....................................... 217
Storing ........................................... 217
BAS (Brake Assist System) ................. 69
BAS PLUS (Brake Assist System
PLUS) .................................................... 69
Battery (SmartKey) Checking .......................................... 81
Important safety notes .................... 80
Replacing ......................................... 81
Battery (vehicle)
Charging ........................................ 321
Display message ............................ 249
Important safety notes .................. 319
Jump starting ................................. 323
Belt
see Seat belts
Belt force limiter
Activation ......................................... 60
Function ........................................... 60
Blind Spot Assist
Activating/deactivating ................. 229
Display message ............................ 253
Notes/function .............................. 203
Trailer towing ................................. 205
see Active Blind Spot Assist
BlueTEC (DEF) .................................... 376
BlueTEC ®
Adding DEF .................................... 166
Brake Assist
see BAS (Brake Assist System) Index
5

DEF (BlueTEC vehicles only)
Important notes on use To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF. Adding DEF is one of the
tasks performed during maintenance. Under
normal operating conditions, a tank of DEF
lasts until the next service due date.
When the supply of DEF is almost used up, the
Check
Check Additive
Additive See SeeOperator's
Operator's Manual
Manual
message is shown in the multifunction dis-
play.
When the DEF supply drops to a minimum, the
Remaining Starts: 16
Remaining Starts: 16 message is shown
in the multifunction display.
If the Remaining Starts: 16 Remaining Starts: 16 message
appears in the multifunction display, you can start the engine another 16 times. If DEF is
not refilled, you will subsequently be unable
to start the engine . Refill the DEF tank with
around 1 gal (3.8 l) of DEF or have the DEF
tank refilled at a qualified specialist work-
shop.
Use the special DEF refill bottle when adding DEF between maintenance intervals. Contact
a qualified specialist workshop with any ques-
tions or, if necessary, contact Roadside Assis- tance (Y page 24).
If the outside temperature is below 12 ‡
(00F811 †) it may be difficult to top up. If DEF is
frozen and there is an active warning indica-
tor, it may not be possible to add DEF. Park
the vehicle in a warmer place, e.g. in a garage,
until DEF has become fluid again. It will then
be possible to add DEF again. Alternatively,
have the DEF tank refilled at a qualified spe-
cialist workshop.
Further information about BlueTEC exhaust
gas aftertreatment and DEF is available at any authorized Mercedes-Benz Center. Important safety notes on the refilling
procedure DEF is a water-soluble fluid for the exhaust
gas aftertreatment of diesel engines. It is:
R not poisonous
R colorless and odorless
R not flammable
When you open the DEF container, small
amounts of ammonia vapor may be released. Ammonia vapors have a pungent odor and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may expe-
rience a burning sensation in your eyes, nose and throat. Coughing and watering of the
eyes are possible.
Do not inhale ammonia vapors. Fill the DEF
tank only in well-ventilated areas.
DEF must not come into contact with your
skin, eyes or clothing and must not be swal-
lowed. Keep DEF away from children.
If you or other persons come into contact with
DEF, observe the following:
R Rinse DEF from your skin immediately with
soap and water.
R If DEF comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
R If DEF has been swallowed, rinse your
mouth out immediately. Drink plenty of
water. Seek medical assistance without
delay.
R Change out of clothing contaminated with
DEF immediately.
! Only use DEF in accordance with
ISO 22241. Do not mix any additives with
DEF, and do not dilute DEF with water. This
may destroy the BlueTEC exhaust gas after- treatment system.
! Rinse surfaces that have come into con-
tact with DEF immediately with water or
remove DEF using a damp cloth and cold
water. If the DEF has already crystallized,
use a sponge and cold water to clean it. DEF 166
RefuelingDriving and pa
rking

If you press and hold
0063or0064, the rapid
scrolling speed is increased. Not all audio
drives or data carriers support this function.
If track information is stored on the audio
device or medium, the multifunction display
will show the number and name of the track. The current track does not appear in audio
AUX mode (Auxiliary audio mode: external
audio source connected).
Video DVD operation Example: CD/DVD changer display
0043 Current scene
X Switch on COMAND and select video DVD;
see the separate operating instructions.
X Press the 0059or0065 button on the steer-
ing wheel to select the Audio
Audio menu.
X To select the next/previous scene:
briefly press the 0063or0064 button.
X To select a scene from the scene list
(rapid scrolling): press and hold the 0063
or 0064 button until desired scene has
been reached. Telephone menu
Introduction G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle while driving, you will be distracted from
traffic conditions. You could also lose control of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention to traffic conditions and operate the equip-
ment when the vehicle is stationary.
When telephoning, you must observe the
legal requirements for the country in which
you are currently driving.
X Switch on the mobile phone; see the sepa-
rate operating instructions.
X Switch on the audio system or COMAND;
see the separate operating instructions.
X Establish a Bluetooth ®
connection to the
audio system or COMAND; see the sepa-
rate operating instructions.
X Press the 0059or0065 button on the steer-
ing wheel to select the Tel Telmenu.
You will see one of the following display mes-
sages in the multifunction display:
R Phone READY
Phone READY or the name of the network
provider: the mobile phone has found a
network and is ready to receive.
R Phone No Service Phone No Service: there is no network
available or the mobile phone is searching
for a network.
Accepting a call If someone calls you when you are in the
Tel Tel
menu, a display message appears in the mul-
tifunction display, for example: Example: incoming call
X Press the 0061button on the steering
wheel to accept an incoming call.
You can accept a call even if you are not in the
Tel
Tel menu. Menus and submenus
227On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 00B6
Fuel Fuel
fill.
fill. cap
capopen
open The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X Check that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed: X Close the fuel filler cap.
If the fuel filler cap is correctly closed: X Visit a qualified specialist workshop. 009E
Please Please
replace
replace air
air
filter
filter Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X Visit a qualified specialist workshop. 003A
Clean Clean
the
thefuel
fuel fil‐
fil‐
ter
ter Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X Visit a qualified specialist workshop. 0099
Refill AdBlue At Refill AdBlue At
Workshop See Oper‐ Workshop See Oper‐
ator's Manual ator's Manual The DEF level has fallen below the reserve range. A warning tone
also sounds.
X Have DEF refilled as soon as possible at a qualified specialist
workshop. 0099
Refill AdBlue At Refill AdBlue At
Workshop No Start Workshop No Start
in .. km in .. km The DEF level is only sufficient for the indicated distance. A warn-
ing tone also sounds.
X Have DEF refilled as soon as possible at a qualified specialist
workshop. 0099
Refill AdBlue At Refill AdBlue At
Workshop Eng. Workshop Eng.
Start Not Possible Start Not Possible The DEF tank is empty. A warning tone also sounds. You can no
longer start the engine.
X Consult a qualified specialist workshop immediately. 0099
Check AdBlue See Check AdBlue See
Operator's Manual Operator's Manual The DEF system is malfunctioning. A warning tone also sounds.
X Visit a qualified specialist workshop. 250
Display
messagesOn-board computer and displays

Tires
GLK 250 BlueTEC Summer tires
R19 Tires Alloy wheels
FA: 235/5
0 R 19 99 V
RA : 255/45 R 19 100 V 14 FA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm)
RA: 8.5 J x 19 H2
Wheel offset: 2.05 in (52 mm) All-weather tires
R17 Tires Alloy wheels
BA: 235/60 R 17 102 V M+S BA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm) R19
Tires Alloy wheels
BA: 235/50 R 19 99 H M+S
15 BA: 7.5 J x 19 H2
Wheel offset: 1.85 in (47 mm) R20
Tires Alloy wheels
BA: 235/45 R20 100 H XL M+S BA: 8.0 J x 20 H2
Wheel offset: 1.77 in (45 mm) All-terrain tires
R17 Tires Alloy wheels
BA: 235/60 R17 102 H M+S BA: 7.5 J x 17 H2
Wheel offset: 1.87 in (47.5 mm) 14
Use of snow chains not permitted. Observe the notes in the "Snow chains" section.
15 Available as MOExtended tires. 362
Wheel and tire combinationsWheels and tires

If standard unleaded gasoline is unavaila-
ble and you have to refuel with unleaded
gasoline of a lower grade, observe the fol-
lowing precautions:
R Only fill the fuel tank to half full with reg-
ular unleaded gasoline and fill the rest
with premium-grade unleaded gasoline
as soon as possible.
R Do not drive at the maximum speed.
R Avoid sudden acceleration and engine
speeds over 3,000 rpm.
You will usually find information about the fuel
grade on the pump. If you cannot find the
label on the pump, ask the staff for assis-
tance.
i For further information, consult a quali-
fied specialist workshop or visit
http://www.mbusa.com (USA only).
i E10 fuel contains up to 10% bioethanol.
Your vehicle is E10-compatible. You can
refuel your vehicle using E10 fuel.
As a temporary measure, if the recommended fuel is not available, you may also use regularunleaded gasoline with an octane rating of
87 AKI/91 RON. This may reduce engine per-
formance and increase fuel consumption.
Avoid driving at full throttle and sudden accel- eration. Never refuel using fuel with a lower
AKI.
Information on refueling (Y page 162).
Additives ! Operating the engine with fuel additives
added later can lead to engine failure. Do
not mix fuel additives with fuel. This does
not include additives for the removal and
prevention of residue buildup. gasoline
must only be mixed with additives recom-
mended by Mercedes-Benz. Comply with
the instructions for use on the product
label. More information about recommen-
ded additives can be obtained from any
authorized Mercedes-Benz Center.
Mercedes-Benz recommends that you use
branded fuels that have additives. The quality of the fuel available in some coun-
tries may not be sufficient. Residue could
build up in the injection system as a result. In
such cases, and in consultation with an
authorized Mercedes-Benz Center, the gaso-
line may be mixed with the cleaning additive
recommended by Mercedes-Benz. You must
observe the notes and mixing ratios specified on the container.
Diesel Fuel grade
G
WARNING
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel.
! Only use commercially available vehicular
ULTRA-LOW SULFUR DIESEL FUEL (ULSD,
15 ppm maximum sulfur content) that
meets the ASTM D975 standard. If you do
not refuel with ULSD, you may damage the
BlueTEC exhaust gas aftertreatment sys-
tem of the vehicle.
! Do not use gasoline to refuel vehicles with
a diesel engine. Do not mix diesel fuel with
gasoline, kerosene or paraffin. This may
otherwise result in damage to the fuel sys- tem and engine.
You will usually find information about the fuel grade on the pump. If you cannot find the
label on the pump, ask the staff for assis-
tance.
i For further information, consult a quali-
fied specialist workshop or visit
http://www.mbusa.com (USA only).
Information on refueling (Y page 162). Service products and filling capacities
375Technical data Z

Bio-diesel – FAME (fatty acid methyl ester)
Mercedes-Benz USA approves the use of bio-diesel B5 for all BlueTEC diesel engines. The
concentration of bio-diesel in the ULSD may
not exceed 5% by volume.
Pure bio-diesel and diesel fuel with a higher
percentage of bio-diesel, such as B20, can
damage the engine and the fuel system. For
this reason, they are not approved.
For more information, consult the gas station
staff. The bio-diesel B5 label on the gasoline
pump must clearly state that the standard for
ULSD has been fulfilled. If the label is not
clear, do not refuel the vehicle.
Do not refuel your vehicle with fuels unless
they have been approved by Mercedes-Benz.
Information on refueling (Y page 163).
Low outside temperatures
i Diesel fuel with improved cold flow prop-
erties is available during the winter months. Further information about fuel properties
can be obtained from oil companies, e.g. at gas stations. DEF
Important safety notes Comply with the important safety notes for
service products when handling DEF
(Y page 373).
DEF is a water-soluble fluid for the exhaust
gas aftertreatment of diesel engines. It is:
R not poisonous
R colorless and odorless
R not flammable
When you open the DEF container, small
amounts of ammonia vapor may be released.
Ammonia vapors have a pungent odor and are particularly irritating to the skin, to mucous
membranes and to the eyes. You may expe-
rience a burning sensation in your eyes, nose and throat. Coughing and watering of the
eyes are possible. Do not inhale ammonia vapors. Fill the DEF
tank only in well-ventilated areas.
Low outside temperatures DEF freezes at a temperature of approx-
imately 12
‡(-11 †). The vehicle is delivered
from the factory equipped with a DEF pre-
heating system. Winter operation can thus be guaranteed even at temperatures below 12 ‡
(-11 †).
Additives !
Only use DEF in accordance with ISO
22241. Do not use additives with DEF and
do not dilute DEF with water. This may
destroy the BlueTEC exhaust gas after-
treatment system.
Purity !
Impurities in DEF (e.g. due to other ser-
vice products, cleaning agents or dust) lead to:
R increased emission values
R damage to the catalytic converter
R engine damage
R malfunctions in the BlueTEC exhaust gas
aftertreatment system
Assuring the purity of DEF is particularly
important with respect to avoiding malfunc-
tions in the BlueTEC exhaust gas aftertreat-
ment system.
If DEF is pumped out of the DEF tank, e.g.
during repair work, it must not be returned to
the tank. The purity of the fluid can no longer
be guaranteed.
Filling capacities Model Total capacity
GLK 250 BlueTEC
7.3 US gal
(27.5 l) 376
Service products and filling capacitiesTechnical data

Engine oil
General notes !
Never use engine oil or an oil filter of a
specification other than is necessary to ful- fill the prescribed service intervals. Do not
change the engine oil or oil filter in order to
achieve longer replacement intervals than
those prescribed. You could otherwise
cause engine damage or damage to the
exhaust gas aftertreatment.
Follow the instructions in the service inter-
val display regarding the oil change. Other-
wise, you may damage the engine and the
exhaust gas aftertreatment.
When handling engine oil, observe the impor- tant safety notes on service products
(Y page 373).
The engine oils are matched to the perform-
ance of Mercedes-Benz engines and service
intervals. You should therefore only use
engine oils and oil filters that are approved for vehicles with maintenance systems.
For a list of approved engine oils and oil filters, consult an authorized Mercedes-Benz Cen-
ter. Or visit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for your vehicle. Model Engine
model MB
Approval GLK 350
GLK 350 4MATIC
276 229.5
GLK 250 Blue-
TEC
651 228.51,
229.31,
229.51 i
MB approval is indicated on the oil con-
tainers.
Filling capacities The following values refer to an oil change
including the oil filter. Model Capacity
All models
6.9 US qt (6.5
l) Additives
!
Do not use any additives in the engine oil.
This could damage the engine.
Engine oil viscosity Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
Select an engine oil with an SAE classification (viscosity) suitable for the prevailing outside
temperatures. The table shows you which
SAE classifications are to be used. The low-
temperature characteristics of engine oils
can deteriorate significantly, e.g. as a result
of aging, soot and fuel deposits. It is therefore
strongly recommended that you carry out reg- ular oil changes using an approved engine oil
with the appropriate SAE classification. Brake fluid
G
WARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake fluid is too low, vapor pockets may form in the brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident. Service products and filling capacities
377Technical data
Z

Filling capacities
Model Capacity
GLK 250 BlueTEC
Approx. 10.4 US qt
(9.8l) GLK 350
GLK 350 4MATIC
Approx. 8.9 US qt
(8.4l) i
Use MB 325.0 or MB 326.0 antifreeze/
corrosion inhibitor. Windshield washer system
Important safety notes G
WARNING
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.
Adapt the mixing ratio to the outside temper-
ature.
R Down to 14 ‡ (00F810 †): mix 1 part MB Win-
terFit to 2 parts water.
R Down to 00F84‡( 00F820 †): mix 1 part MB Win-
terFit to 1 part water.
R Down to 00F820.2 ‡ (00F829 †): mix 2 parts MB
WinterFit to 1 part water.
i Add 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‑134a.
The instruction label regarding the refrigerant
type used can be found on the radiator cross
member.
! Only the refrigerant R‑134a and the PAG
oil approved by Mercedes-Benz may be
used. The approved PAG oil may not be
mixed with any other PAG oil that is not
approved for R-134a refrigerant. Other-
wise, the climate control system may be
damaged.
Service work, such as topping up refrigerant
or replacing components, may only be carried out by a qualified specialist workshop. All
applicable regulations must be adhered to,
SAE standard J639 included. Service products and filling capacities
379Technical data Z