warning MERCEDES-BENZ GLK-CLASS SUV 2013 Workshop Manual

controlled manner. The spinning of the
wheels results in a cutting action, which
provides better grip.
R ESP ®
still provides support when you
brake.
Characteristics when ESP ®
is deactivated
If
ESP ®
is deactivated and one or more wheels
start to spin, the 00E5 ESP®
warning lamp in
the instrument cluster does not flash. In such
situations, ESP ®
will not stabilize the vehicle.
If you deactivate ESP ®
:
R ESP ®
no longer improves driving stability.
R the engine's torque is no longer limited and
the drive wheels are able to spin without
restriction. The spinning of the wheels
results in a cutting action, which provides
better grip.
R traction control is still activated.
R PRE-SAFE ®
Brake is no longer available;
nor is it activated if you brake with
assistance from ESP ®
.
R ESP ®
still provides support when you
brake.
ESP ®
trailer stabilization G
WARNING
If road and weather conditions are poor,
trailer stabilization will not be

able to prevent
the vehicle/trailer combination from
swerving. Trailers with a high center of gravity
can tip over before ESP ®
can detect this.
There is a risk of an accident.
Always adapt your driving style to the
prevailing road and weather conditions.
If your vehicle with trailer (vehicle/trailer
combination) begins to lurch, you can only
stabilize the vehicle/trailer combination by
depressing the brake firmly.
In this situation, ESP ®
assists you and can
detect if the vehicle/trailer combination
begins to lurch. ESP ®
slows the vehicle down
by braking and limiting the engine output until the vehicle/trailer combination has
stabilized.
Trailer
stabilization is active above

speeds of
about 40 mph (65 km/h).
Trailer stabilization does not work if ESP ®
is
deactivated because of a malfunction. EBD (electronic brake force
distribution)
i Observe the "Important safety notes"
section ( Y page 64). G
WARNING
If EBD has malfunctioned, the rear wheels can
still lock, e.g. under full braking. This
increases the risk of skidding

and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified
specialist workshop.
Observe information regarding indicator and
warning lamps ( Y page 259) as well as
display messages ( Y page 233).
EBD monitors and controls the brake
pressure on the rear wheels to improve
driving stability while braking. PRE-SAFE
®
Brake
i Observe the "Important safety notes"
section ( Y page 64).
PRE-SAFE ®
Brake is only available

in vehicles
with DISTRONIC PLUS.
If PRE-SAFE ®
Brake is to aid you, the radar
sensor system must be:
R activated (Y page 229)
R operational
With the help of the radar sensor system,
PRE-SAFE ®
Brake can detect obstacles that
are in front of your vehicle for an extended
period of time.
PRE-SAFE ®
Brake can help you to minimize
the risk of a collision with a vehicle ahead or Driving safety systems
69
Safety Z

reduce the effects of such a collision. If PRE-
SAFE
®
Brake has detected a
risk of collision,
you will be warned visually and acoustically
as well as by automatic braking. PRE-SAFE ®
Brake cannot prevent a collision without your
intervention.
Starting at a speed of around
4 mph (7 km/h), this function warns you if
you very quickly approach a vehicle in front.
An intermittent warning tone will then sound
and the 00BA distance warning lamp will light
up in the instrument cluster.
X Brake immediately in order to increase the
distance from the vehicle in front.
or
X Take evasive action provided it is safe to do
so.
From a speed of approximately
4 mph (7 km/h), if the driver and front
passenger have fastened their seat belts,
PRE-SAFE ®
Brake can brake the vehicle
automatically at speeds up to approximately
124 mph (200 km/h ).
Due to the nature of the system, particularly
complicated driving conditions may cause
unnecessary warnings or the unnecessary
intervention of PRE-SAFE ®
Brake.
You can prevent the intervention of the PRE-
SAFE ®
Brake at any time by:
R depressing the accelerator pedal further
R activating kickdown
R releasing the brake pedal
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you maneuver to avoid the obstacle.
R there is no longer

any danger of a rear-end
collision.
R there is no longer an obstacle detected in
front of your vehicle.
At speeds of up to approximately 40 mph
(70 km/h), PRE-SAFE ®
Brake can also detect
stationary objects. Examples of stationary
objects are stopped or parked vehicles. If you approach an obstacle and PRE-SAFE
®
Brake detects a risk of

a collision, the system
will alert you both visually and acoustically. If
you do not brake or take evasive action, the
system will warn you by automatically braking
the vehicle gently. If there is an increased risk
of collision, preventative passenger
protection measures (PRE-SAFE ®
) are
activated (Y page 52). If the risk of collision
with the vehicle in front remains and you do
not brake, take evasive action or accelerate
significantly, automatic braking may be
performed up to a level of emergency braking.
Automatic emergency braking is not
performed until immediately prior to an
accident that can no longer be avoided. G
WARNING
PRE-SAFE ®
Brake will initially brake your
vehicle by a partial application of the brakes
if a danger of collision

is detected. There may
be a collision unless you also brake.
Automatic emergency braking cannot prevent
a collision. There is a risk of an accident.
Always apply the brakes yourself and try to
take evasive action. G
WARNING
PRE-SAFE ®
Brake cannot always clearly
identify objects and complex traffic
conditions.
In these cases, PRE-SAFE ®
Brake may:
R give an unnecessary warning and then
brake the vehicle
R not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and be ready to brake, especially if
PRE-SAFE ®
Brake warns you. Terminate the
intervention in a non-critical driving

situation.
In particular, the detection of obstacles can
be impaired if:
R dirt on the sensors or anything else
covering the sensors
R snow or heavy rain70
Driving safety systems
Safety

R
interference by other radar sources
R there are strong radar reflections, for
example in parking garages
R a narrow vehicle traveling in front, e.g. a
motorbike
R a vehicle traveling in front
on a different line
relative to the center of your vehicle G
WARNING
PRE-SAFE ®
Brake does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As a result, PRE-SAFE ®
Brake may neither
give warnings nor intervene in all critical
situations. There is a risk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In order to maintain an appropriate distance
from the vehicle in front and thus prevent a
collision, you must apply the

brakes yourself.
X To activate/deactivate: activate or
deactivate PRE-SAFE ®
Brake in the on-
board computer ( Y page 225).
When PRE-SAFE ®
Brake is activated, the
00C7 symbol appears in the multifunction
display as long as the HOLD function is
deactivated ( Y page 179).
On vehicles with Parking Guidance, the
00C7 symbol is displayed when position P
is engaged or you are driving faster than
22 mph (35 km/h ).
Following damage to the front end of the
vehicle, have the configuration
and

operation
of the radar sensors checked at a qualified
specialist workshop. This also applies to
collisions at low speeds where there is no
visible damage to the front of the vehicle. Theft deterrent locking system
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
X To activate with the SmartKey: remove
the SmartKey from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
i The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be
started when the starter battery is fully
charged, the immobilizer may be faulty.
Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes

(in the
USA) or 1-800-387-0100 (in Canada). ATA (anti-theft alarm system)
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R a door
R the vehicle with the mechanical key
R the tailgate
R the hood
The alarm is not switched off, even if you
close the open door that triggered it, for
example. Theft deterrent locking system
71
Safety Z

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your
vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: ( Y page 27).SmartKey
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock

the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. G
WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle. G
WARNING
If you attach heavy or large objects to the
SmartKey, the SmartKey could be
unintentionally turned in the ignition

lock. This
could cause the engine to be switched off.
There is a risk of an accident.
Do not attach any heavy or large objects to
the SmartKey. Remove any bulky keyrings
before inserting the SmartKey into the
ignition lock.
! Keep the SmartKey away from strong
magnetic fields. Otherwise, the remote
control function could be affected.
Strong magnetic fields can occur in the
vicinity of powerful electrical installations.
R Do not keep the KEYLESS-GO key:
-with electronic devices, e.g. a mobile
phone or another SmartKey
- with metallic objects, e.g. coins or metal
foil
- inside metallic objects e.g. a metal case
This can affect the functionality of the
SmartKey. SmartKey functions
The SmartKey centrally locks/unlocks:
R the doors
R the tailgate
R the fuel filler flap74
SmartKey
Opening and closing

and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you
frequently travel on your own.
X
To change the setting: press and hold
down the 0036 and 0037 buttons
simultaneously for approximately six
seconds until the battery check lamp
(Y page 77) flashes twice.
i If the setting of the locking system is
changed within the signal range of the
vehicle, pressing the
0037
or
0036
button:
R locks or
R unlocks the vehicle
The SmartKey now functions as follows:
X To unlock the driver's door: press the
0036 button once.
X To unlock centrally: press the 0036
button twice.
X To lock centrally: press the 0037 button.
The KEYLESS-GO function is changed as
follows:
X To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X To unlock centrally: touch the inner
surface of the door handle on the front-
passenger door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles
(Y page 75).
X To restore the factory settings: press
and hold down the 0036

and 0037 buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. Mechanical key
General notes If the vehicle can no longer be locked or
unlocked with the SmartKey
or

the KEYLESS-
GO key, use the mechanical key. If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (
Y page 71).
X To end the

alarm: insert the SmartKey into
the ignition lock.
i With KEYLESS-GO: remove the Start/
Stop button from the ignition lock
beforehand.
If

you unlock the vehicle
using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
Removing the mechanical key X
Push release catch 0043 in the direction of
the arrow and at the same time remove
mechanical key 0044 from the SmartKey. SmartKey battery
Important safety notes Mercedes-Benz recommends that you have
the batteries replaced at
a

qualified specialist
workshop. G
WARNING
Batteries contain toxic and corrosive
substances. If batteries
are swallowed,

it can
result in severe health problems. There is a
risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately. 76
SmartKey
Opening and closing

Problem Possible causes/consequences and
0050 SolutionsYou have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. The engine cannot be
started using the
SmartKey. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 314).
or
X Jump-start the vehicle (Y page 318).
or
X Consult a qualified specialist workshop. The engine cannot be
started
using KEYLESS-
GO. The SmartKey is in
the vehicle. A door is open. Therefore, the SmartKey cannot be detected as
easily.
X
Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves.
X
Start your vehicle with the SmartKey in the ignition lock. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock
the vehicle. Never leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
G
WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle. Unlocking and opening doors from
the inside
You can open a door from inside the vehicle
even if it has been

locked. You can only open
the rear doors from inside the vehicle if they
are not secured by the child-proof locks
(Y page 63).
Only open the door when the traffic situation
permits. Doors
79
Opening and closing Z

X
Turn the mechanical key clockwise as far
as it will go to position 0047.
X Turn the mechanical key back and remove
it.
X Make sure that the doors and the tailgate
are locked.
X Insert the mechanical key into the
SmartKey.
i If you lock the vehicle
as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed. Cargo compartment
Important safety notes
G
WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide.

If the tailgate
is open when the engine is running,
particularly if the vehicle is moving, exhaust
fumes could enter the passenger
compartment. There is a risk of poisoning.
Turn off the engine before opening the
tailgate. Never drive with the tailgate open.
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure that there is sufficient clearance above and
behind the tailgate.
i Tailgate opening dimensions
(Y page 373).
You should preferably place luggage

or loads
in the cargo compartment. Observe the
loading guidelines ( Y page 270).
Do not leave the SmartKey in the cargo
compartment. You could otherwise lock
yourself out.
Vehicles without the EASY-PACK
tailgate: the tailgate can be:
R opened and closed manually from outside
R unlocked from inside with the mechanical
key
For vehicles with the EASY-PACK tailgate
you can:
R open and close the tailgate manually from
outside
R open and close the tailgate automatically
from outside
R open and close the tailgate automatically
from inside
R limit the opening angle of the tailgate
R unlock the tailgate from inside with the
mechanical key Opening/closing from outside
Opening X
Press the 0036 button on the SmartKey.82
Cargo compartment
Opening and closing

X
Pull handle 0043.
X Raise the tailgate.
Vehicles with the EASY-PACK tailgate: if
you pull handle 0043 and
keep it in this position,
you can open the tailgate manually. If you
release the handle, the tailgate opens
automatically.
Closing X
Pull the tailgate down using recess 0043.
X Push the tailgate closed from outside the
vehicle.
X If necessary, lock the vehicle with
the 0037 button on the SmartKey
(Y page 74) or with KEYLESS-GO
(Y page 75).
i If a KEYLESS-GO key is detected in the
cargo compartment, the tailgate will not
lock. Opening/closing automatically from
outside
Important safety notes G
WARNING
Parts of the body could become trapped
during automatic closing of the tailgate.
Moreover, people, e.g. children, may be
standing in the closing area or may enter the
closing area during the closing

process. There
is a risk of injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process. Use one of the following options to stop the
closing process:
R
press the 0054 button on the SmartKey.
R press the remote operating switch on the
driver's door.
R press the closing or locking button on the
tailgate.
R pull the handle on the tailgate. G
WARNING
Combustion engines emit poisonous exhaust
gases such as
carbon monoxide.

If the tailgate
is open when the engine is running,
particularly if the vehicle is moving, exhaust
fumes could enter the passenger
compartment. There is a risk of poisoning.
Turn off the engine before opening the
tailgate. Never drive with the tailgate open.
! The tailgate swings upwards and to the
rear when opened. Therefore, make sure
that there is sufficient clearance above and
behind the tailgate.
i Tailgate opening dimensions
(Y page 373).
Opening You can open the tailgate automatically with
the SmartKey or the handle in the tailgate.
Open or close the tailgate fully using the
automatic door function if you have stopped
the tailgate in an intermediate position.
X
Press and hold the 0054 button on the
SmartKey until the tailgate opens.
or
X If the tailgate is unlocked, pull the handle
and let it go again immediately.
i You can also close the tailgate manually
if it is fully opened.
! If you have opened the tailgate
automatically, you should wait a moment
before closing the tailgate manually. Cargo compartment
83
Opening and closing Z

Closing
G
WARNING
Parts of the body could become trapped
during automatic closing of the tailgate.
Moreover, people, e.g. children, may be
standing in the closing area or may enter the
closing area during the closing
process. There
is a risk of injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process.
Use one of the following options to stop the
closing process:
R press the 0054 button on the SmartKey.
R press the remote operating switch on the
driver's door.
R press the closing or locking button on the
tailgate.
R pull the handle on the tailgate.
You can close the tailgate automatically using
the SmartKey, the closing button 2
or the
locking button 3
. Closing and locking button (example: vehicle with
EASY-PACK tailgate and KEYLESS-GO)
X
To close: press closing button 0043 on the
tailgate.
or
X Press and hold the 0054 button on the
SmartKey until the tailgate closes.
X To close and lock simultaneously:
Press locking button 0044 on the tailgate. i
The tailgate can only be opened and
closed with the SmartKey if it is not in the
ignition lock.
If the tailgate touches an object while
closing, the closing procedure is
interrupted and the tailgate reopens.
i If you leave a KEYLESS-GO key in the
cargo compartment, the tailgate will not
lock.
The tailgate is not closed unless a
KEYLESS-GO key is detected. Opening/closing automatically from
inside
G
WARNING
Parts of the body could become trapped
during automatic closing of the tailgate.
Moreover, people, e.g. children, may be
standing in the closing area or may enter the
closing area during the closing

process. There
is a risk of injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process.
Use one of the following options to stop the
closing process:
R press the 0054 button on the SmartKey.
R press the remote operating switch on the
driver's door.
R press the closing or locking button on the
tailgate.
R pull the handle on the tailgate. G
WARNING
Combustion engines emit poisonous exhaust
gases such as
carbon monoxide.

If the tailgate
is open when the engine is running,
particularly if the vehicle is moving, exhaust
fumes could enter the passenger
compartment. There is a risk of poisoning.
Turn off the engine before opening the
tailgate. Never drive with the tailgate open.
2 For vehicles with the EASY-PACK tailgate only.
3 For vehicles with the EASY-PACK tailgate and KEYLESS-GO only.84
Cargo compartment
Opening and closing

Opening
X
Take the mechanical key out of the
SmartKey (Y page 76).
X Insert mechanical key 0044 into the opening
in paneling 0043.
X Turn mechanical key 004490° clockwise.
X Push mechanical key 0044 in the direction
of
the arrow and open the tailgate. Side windows
Important safety notes
G
WARNING
While opening the side windows, body parts
could become trapped between the side
window and the door frame as the side
window moves. There is a risk of injury.
Make sure that nobody touches the side
window during the opening procedure. If
somebody becomes trapped, release the
switch or pull the switch to close the side
window again. G
WARNING
While opening the side windows, body parts
in the closing area could become trapped.
There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure. If
somebody becomes trapped, release the
switch or press the switch down to open the
side window again. G
WARNING
If children operate the side windows they
could become trapped, particularly if
they are
left unsupervised. There is a risk of injury.
Activate the override feature for the rear side
windows. When leaving the vehicle, always
take the SmartKey with you and lock the
vehicle. Never leave children unsupervised in
the vehicle. G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock

the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. Side window reversing feature
The side windows are equipped with an
automatic reversing feature. If a solid object
blocks or restricts a side window during the
closing process, the side window

opens again
automatically. However, the automatic
reversing feature is only an aid and does not
relieve you of the responsibility of paying
attention when closing a side window. 86
Side windows
Opening and closing