2015 MERCEDES-BENZ GLK-CLASS SUV ECU

Remote fault diagnosis .................. 293
Remote vehicle locking .................. 292
Roadside Assistance button .......... 289
Search & Send ............................... 292
Self-test ......................................... 288
Speed alert .................................... 294
System .......................................... 288
Triggering the vehicle alarm ........... 295
Vehicle remote unlocking .............. 292
Mechanical key
Function/notes ................................ 80
Locking vehicle ................................ 86
Unlocking the driver's door .............. 86
Media Interface
see Separate operating instructions
Memory card (audio) ......................... 226
Memory function ............................... 112
Message memory (on-board com-
puter) .................................................. 2 35
Messages
see Display messages
Mirrors
see Exterior mirrors
see Rear-view mirror
see Vanity mirror (in the sun visor)
Mobile phone
Menu (on-board computer) ............ 227
Modifying the programming
(SmartKey) ........................................... 80
MOExtended tires .............................. 315
Mounting wheels
Lowering the vehicle ...................... 359
Mounting a new wheel ................... 358
Preparing the vehicle ..................... 356
Raising the vehicle ......................... 357
Removing a wheel .......................... 358
Securing the vehicle against roll-
ing away ........................................ 356
MP3
Operation ....................................... 226
see separate operating instructions
Multifunction display
Function/notes ............................. 222
Permanent display ......................... 231
Multifunction steering wheel
Operating the on-board computer .. 221
Overview .......................................... 35N
Navigation
Menu (on-board computer) ............ 225
see separate operating instructions
NECK-PRO head restraints
Operation ......................................... 54
Resetting triggered .......................... 55
NECK-PRO luxury head restraints
Operation ......................................... 54
Resetting when triggered ................. 55
Notes on breaking-in a new vehi-
cle ................................................... .... 148
O
Occupant Classification System
(OCS)
Faults .............................................. . 53
Operation ......................................... 49
System self-test ............................... 52
Occupant safety
Air bags ........................................... 44
Children in the vehicle ..................... 61
Occupant Classification System
(OCS) ............................................... 49
Pets in the vehicle ........................... 67
PRE-SAFE ®
(anticipatory occu-
pant protection) ............................... 54
SRS (Supplemental Restraint Sys- tem) ............................................... .. 43
System overview .............................. 42
OCS
Faults ............................................. .. 53
Operation ......................................... 49
System self-test ............................... 52
Odometer ........................................... 223
Off-road system
4MATIC .......................................... 185
Oil
see Engine oil
On-board computer
Assistance menu ........................... 228
Audio menu ................................... 226
Convenience submenu .................. 233
Display messages .......................... 235
Displaying a service message ........ 305
Factory settings submenu ............. 234
Index13

Emergency locking ........................... 86
Emergency unlocking ....................... 86
Equipment ....................................... 23
Individual settings .......................... 230
Limited Warranty ............................. 28
Loading .......................................... 343
Locking (in an emergency) ............... 86
Locking (SmartKey) .......................... 78
Lowering ........................................ 359
Maintenance .................................... 24
Parking for a long period ................ 169
Pulling away ................................... 152
Raising ........................................... 35 7
Reporting problems ......................... 27
Securing from rolling away ............ 356
Towing away .................................. 325
Transporting .................................. 327
Unlocking (in an emergency) ........... 86
Unlocking (SmartKey) ...................... 78
Vehicle data ................................... 380
Vehicle data ....................................... 380
Vehicle dimensions ........................... 380
Vehicle emergency locking ................ 86
Vehicle identification number
see VIN
Vehicle identification plate .............. 372
Vehicle maintenance
see ASSYST PLUS
Vehicle tool kit .................................. 314
Video (DVD) ........................................ 227
VIN ................................................... ... 372
W
Warning and indicator lamps
ABS ................................................ 262
Brakes ........................................... 26 2
Check Engine ................................. 267
Coolant .......................................... 26 8
Distance warning ........................... 270
DISTRONIC PLUS ........................... 270
ESP ®
.............................................. 264
ESP ®
OFF ....................................... 265
Fuel tank ........................................ 267
Overview .......................................... 34
PASSENGER AIRBAG OFF ................ 49
Reserve fuel ................................... 267
Seat belt ........................................ 260 SRS ................................................
266
Tire pressure monitor .................... 271
Warranty .............................................. 23
Washer fluid
Display message ............................ 258
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 359
Wheel chock ...................................... 356
Wheels
Changing a wheel .......................... 355
Checking ........................................ 333
Cleaning ......................................... 30 7
Emergency spare wheel ................. 366
General notes ................................ 360
Important safety notes .................. 332
Information on driving .................... 332
Interchanging/changing ................ 355
Mounting a new wheel ................... 358
Mounting a wheel .......................... 356
Removing a wheel .......................... 358
Storing ........................................... 3 55
Tightening torque ........................... 359
Wheel size/tire size ....................... 360
Window curtain air bag
Display message ............................ 240
Operation ......................................... 49
Windows
see Side windows
Windshield
Defrosting ...................................... 141
Windshield washer fluid
see Windshield washer system
Windshield washer system .............. 303
Notes ............................................. 37 9
Windshield wipers
Problem (malfunction) ................... 129
Rear window wiper ........................ 127
Replacing the wiper blades ............ 127
Switching on/off ........................... 126
Winter driving
Important safety notes .................. 334
Slippery road surfaces ................... 174
Snow chains .................................. 335
Winter tires
M+S tires ....................................... 335
Wiper blades
Cleaning ......................................... 30 8
20Index

the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not useloose floormats and do not place floormats ontop of one another.
! If the engine is switched off and equip-
ment on the diagnostics connection is
used, the starter battery may discharge.
Connecting equipment to the diagnostics
connection can lead to emissions monitoring information being reset, for example. This
may lead to the vehicle failing to meet the
requirements of the next emissions test dur-
ing the main inspection.
Qualified specialist workshop
An authorized Mercedes-Benz Center is a
qualified specialist workshop. It has the nec-
essary specialist knowledge, tools and quali-
fications to correctly carry out the work
required on your vehicle. This is especially the
case for work relevant to safety.
Observe the notes in the Maintenance Book-
let.
Always have the following work carried out at an authorized Mercedes-Benz Center:
R work relevant to safety
R service and maintenance work
R repair work
R alterations, installation work and modifica-
tions
R work on electronic components
Correct use
If you remove any warning stickers, you or
others could fail to recognize certain dangers.
Leave warning stickers in position.
Observe the following information when driv- ing your vehicle: R the safety notes in this manual
R the vehicle technical data R
traffic rules and regulations
R laws and safety standards pertaining to
motor vehicles
Problems with your vehicle
If you should experience a problem with your
vehicle, particularly one that you believe may affect its safe operation, we urge you to con-
tact an authorized Mercedes-Benz Center
immediately to have the problem diagnosed
and rectified. If the problem is not resolved to
your satisfaction, please discuss the problem
again with a Mercedes-Benz Center or con-
tact us at one of the following addresses.
In the USA
Customer Assistance Center
Mercedes-Benz USA, LLC
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Reporting safety defects
USA only:
The following text is published as required of manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
"National Traffic and Motor Vehicle Safety Act of 1966".
If you believe that your vehicle has a defect
which could cause a crash or could cause
injury or death, you should immediately
inform the National Highway Traffic Safety
Administration (NHTSA) in addition to notify-
ing Mercedes-Benz USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a
safety defect exists in a group of vehicles, it
may order a recall and remedy campaign.
Introduction27
Z

However, NHTSA cannot become involved in
individual problems between you, your
dealer, or Mercedes-Benz USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at
1-888-327-4236(TTY: 1-800-424-9153); go
to http://www.safercar.gov ; or write to:
Administrator, NHTSA, 400 Seventh Street,
SW., Washington, DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
!
Follow the instructions in this manual
about the proper operation of your vehicle
as well as about possible vehicle damage.
Damage to your vehicle that arises from
culpable contraventions against these
instructions is not covered either by the
Mercedes-Benz Limited Warranty or by the New or Used-Vehicle Warranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the event of an accident, rescue services can use
the QR code to quickly find the appropriate
rescue card for your vehicle. The current res- cue card contains the most important infor-
mation about your vehicle in a compact form, e.g. the routing of the electric cables.
You can find more information under https://
portal.aftersales.i.daimler.com/public/
content/asportal/en/communication/
informationen_fuer/QRCode.html.
Data stored in the vehicle
Data recording
This vehicle is capable of recording diagnostic information relating to vehicle operation, mal- functions, and user settings. This may include
information about the performance or status
of various systems, including but not limited
to, engine, throttle, steering or brake sys-
tems, that is stored and can be read out with
suitable devices, particularly when the vehi-
cle is serviced. The data obtained is used to
properly diagnose and service your vehicle or to further optimize and develop vehicle func-
tions.
COMAND/mbrace (Canada: TELEAID)
If the vehicle is equipped with COMAND or
mbrace, additional data about the vehicle’s
operation, the use of the vehicle in certain
situations, and the location of the vehicle maybe compiled through COMAND or the mbrace
system.
For additional information please refer to the COMAND User Manual and/or the mbrace
Terms and Conditions.
Event data recorders
This vehicle is equipped with an event data
recorder (EDR). The main purpose of an EDR
is to record data that will assist in under-
standing how a vehicle’s systems performed
in certain crash or near crash-like situations,
such as during air bag deployment or when
hitting a road obstacle. The EDR is designed
to record data related to vehicle dynamics
and safety systems for a short period of time,typically 30 seconds or less.
The EDR in this vehicle is designed to record
such data as: R how various systems in your vehicle are
operating
R whether or not the driver and passenger
seat belts are fastened
R how far (if at all) the driver is depressing the
accelerator and/or brake pedal and
R how fast the vehicle is traveling
28Introduction

For safety reasons, Mercedes-Benz recom-
mends that you only use seat accessories
that have been approved by Mercedes-Benz.
Both the driver and the front passenger
should always observe the PASSENGER AIR
BAG OFF indicator lamp as an indication of
whether or not the front passenger is posi-
tioned correctly. Observe also the air bag dis-play messages that can be displayed in the
instrument cluster ( Y page 242).
GWARNING
If the 45 indicator lamp illuminates
when an adult or someone larger than a small individual is in the front-passenger seat, have the front passenger reposition himself or her-
self in the seat until the 45 indicator
lamp goes out.
In the event of a collision, the air bag control
unit will not allow front-passenger front air
bag deployment when the OCS has classified
the front-passenger seat occupant as weigh-
ing as much as or less than a typical 12-
month-old child in a standard child restraint or if the front-passenger seat is classified as
being empty.
When the OCS senses that the front-
passenger seat occupant is classified as
being up to or less than the weight of a typical
12-month-old child in a standard child
restraint, the 45 indicator lamp will
illuminate when the engine is started and
remain illuminated, indicating that the front-
passenger front air bag is deactivated.
When the OCS senses that the front-
passenger seat is classified as being empty,
the 45 indicator lamp will illuminate
when the engine is started and remain illumi-
nated, indicating that the front-passenger
front air bag is deactivated.
When the OCS senses that the front-
passenger seat occupant is classified as
being heavier than the weight of a typical 12-
month-old child seated in a standard child
restraint or as being a small individual (such
as a young teenager or a small adult), the45 indicator lamp will illuminate for
approximately 6 seconds when the engine is
started and then, depending on occupant
weight sensor readings from the front-
passenger seat, remain illuminated or go out.
With the 45 indicator lamp illumina-
ted, the front-passenger front air bag is deac-
tivated. With the 45 indicator lamp
out, the front-passenger front air bag is acti-
vated.
When the OCS senses that the front-
passenger seat occupant is classified as an
adult or someone larger than a small individ-
ual, the 45 indicator lamp will illumi-
nate for approximately 6 seconds when the
engine is started and then go out, indicating
that the front-passenger front air bag is acti-
vated.
If the 45 indicator lamp is illuminated,
the front-passenger front air bag is deactiva-
ted and will not be deployed.
If the 45 indicator lamp is not illumi-
nated, the front-passenger front air bag is
activated and will be deployed:
R in the event of certain frontal impacts
R if impact exceeds a preset deployment
threshold
R independently of the side impact air bags
If the front-passenger front air bag is
deployed, the rate of inflation will be influ-
enced by: R the rate of relevant vehicle deceleration as
assessed by the air bag control unit
R the front passenger's weight category as
identified by OCS
GWARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seats whenever possible.
Regardless of seating position, children 12
years old and under must be seated and prop- erly secured in an appropriate infant restraint,
50Occupant safety
Safety

toddler restraint, or booster seat recommen-
ded for the size and weight of the child.
The infant or child restraint must be properly
secured with the vehicle's seat belt, the seat
belt and Top Tether strap, or lower anchors
and Top Tether strap, fully in accordance withthe child seat manufacturer's instructions.
Occupants, especially children, should always
sit as upright as possible, wear the seat belt
properly and use an appropriately sized infant
restraint, toddler restraint, or booster seat
recommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. Note the following impor-
tant information when circumstances require you to place a child in the front-passenger
seat:
R Your vehicle is equipped with air bag tech-
nology designed to deactivate the front-
passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropriate
child restraint on the front-passenger seat.
R A child in a rear-facing child restraint on the
front-passenger seat will be seriously
injured or even killed if the front-passenger front air bag inflates in a collision which
could occur under some circumstances,
even with the air bag technology installed in your vehicle. The only means to eliminate
this risk completely is never to place a child
in a rear-facing child restraint in the front-
passenger seat. We therefore strongly rec- ommend that you always place a child in a
rear-facing child restraint on the rear seat.
R If you install a rear-facing child restraint on
the front-passenger seat, make sure the45 indicator lamp is illuminated,
indicating that the front-passenger front air
bag is deactivated. Should the 45
indicator lamp not illuminate or go out while the restraint is installed, please check
installation. Periodically check the45 indicator lamp while driving tomake sure that the 45 indicator
lamp is illuminated. If the 45 indi-
cator lamp goes out or remains out, do not transport a child on the front-passenger
seat until the system has been repaired.
A child in a rear-facing child restraint on thefront-passenger seat will be seriously
injured or even killed if the front-passenger front air bag inflates.
R If you place a child in a forward-facing child
restraint on the front-passenger seat:
- move the seat as far back as possible
- use the proper child restraint recommen-
ded for the age, size and weight of the
child
- secure child restraint with the vehicle's
seat belt according to the child seat man-
ufacturer's instructions
R For children larger than the typical 12-
month-old child, the front-passenger front
air bag may or may not be activated.
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
will also deploy.
The OCS may have detected that the seat: R is empty or occupied by the weight of a
typical child up to twelve months old,
seated in a child restraint system.
R is occupied by a small individual, such as a
young teenager or a small adult.
R is occupied by a child in a child restraint
system whose weight is greater than that of
a typical twelve month old child.
These are examples of when the OCS deacti-
vates the front-passenger front air bag. Deac- tivation takes place although the collision ful-
fills the criteria for deploying the driver's air
bag.
Occupant safety51
Safety
Z

Problems with the Occupant Classification System
ProblemPossible causes/consequences and M Solutions
The PASSENGER AIR
BAG OFF indicator
lights up and remains
on.
The person on the
front-passenger seat: R
has the weight of a
typical adult
R has been determined
by the system not to
be a childThe OCS is malfunctioning.
X Make sure that the front passenger is sitting in a correct, upright
position.
X Have the OCS checked as soon as possible at a qualified spe-
cialist workshop.
X Observe the additional display messages in the multifunction
display ( Y page 242).
GWARNING
If the 45 indicator lamp illuminates and remains illuminated w hen the weight of a typical
adult or someone larger than a small individual has been detected on the passenger seat, do not
allow any occupant to use the passenger seat until the system has been rep aired.
ProblemPossible causes/consequences and M Solutions
The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or stays on.
The front-passenger
seat is:
R unoccupied
R occupied with a
weight up to that of a
typical twelve-
month-old child in a
standard child
restraint systemThe OCS is malfunctioning.
X Make sure there is nothing between the seat cushion and the
child seat.
X Make sure that the backrest and base of the child restraint sys-
tem are resting securely on the front-passenger seat. If neces-
sary, adjust the position of the front-passenger seat.
X When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight with the front-
passenger seat adjustment. This could result in the seat belt
being pulled too tightly.
X Check the installation of the child restraint system.
X Make sure that no objects are applying additional weight onto
the seat.
X If the PASSENGER AIR BAG OFF indicator lamp remains of f, have
the OCS system checked as soon as possible at a qualified spe-
cialist workshop. Do not transport a child on the front-p assenger
seat until the OCS has been repaired.
X Observe the additional display messages in the multifunction
display ( Y page 242).
Occupant safety53
Safety
Z

RNever place your feet on the instrument
panel, dashboard, or on the seat. Always
keep both feet on the floor in front of the
seat.
R When using a seat belt to secure infant
restraints, toddler restraints, or children in
booster seats, always follow the child seat
manufacturer's instructions.
GWARNING
Do not pass seat belts over sharp edges. They
could tear.
Do not allow the seat belt to get caught in the
door or in the seat adjustment mechanism.
This could damage the seat belt.
Never attempt to make modifications to seat
belts. This could impair the effectiveness of
the seat belts.
Fastening seat belts
GWARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus, we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and prop- erly secured in an appropriately sized child
restraint system or booster seat recommen-
ded for the size and weight of the child. For
additional information, see the "Children in
the vehicle" section.
A child's risk of serious or fatal injuries is sig-
nificantly increased if the child restraints are
not properly secured in the vehicle and/or the child is not properly secured in the child
restraint.
X Adjust the seat and move the backrest to
an almost vertical position ( Y page 100).
X Pull the seat belt smoothly through belt
sash guide :.
X Without twisting it, guide the shoulder sec-
tion of the seat belt across the middle of
your shoulder and the lap section across
your pelvis.
X Engage belt tongue ; in buckle =.
Seat-belt adjustment: if necessary, the
driver's and front-passenger seat belts
automatically adjust to the upper body
( Y page 59).
X If necessary, adjust the seat belt to the
appropriate height ( Y page 59).
X If necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
All seat belts except the driver's seat belt are equipped with a special seat belt retractor tosecurely fasten child restraint systems in the
vehicle. For further information on special
seat belt retractors, see ( Y page 64).
For more information about releasing the seat
belt with release button ?, see "Releasing
seat belts" ( Y page 59).
58Occupant safety
Safety