2015 MERCEDES-BENZ GLK-CLASS SUV tires

Problems with PARKTRONIC
ProblemPossible causes/consequences and M Solutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately five seconds,
and the indicator lamp
in the PARKTRONIC
button lights up.PARKTRONIC has malfunctioned and has switched off.
X If problems persist, have PARKTRONIC checked at a qualified
specialist workshop.
Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is deacti-
vated after approx-
imately five seconds.The PARKTRONIC sensors are dirty or there is interference. X Clean the PARKTRONIC sensors ( Y page 309).
X Switch the ignition back on.
The problem may be caused by an external source of radio or
ultrasound waves. XSee if PARKTRONIC functions in a different location.
Active Parking Assist
Important safety notes
Active Parking Assist is an electronic parking
aid with ultrasound. Ultrasound is used to
measure the road on both sides of the vehicle. A parking symbol indicates a suitable parking
space. Active steering intervention can assist you during parking. You may also use
PARKTRONIC ( Y page 186).
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park-
ing Assist parking procedure.
! If unavoidable, you should drive over
obstacles such as curbs slowly and not at a sharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist is merely an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exiting a parking space. Make sure that
no persons, animals or objects are in the
maneuvering range.
When PARKTRONIC is switched off, Active
Parking Assist is also unavailable.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example:
R where parking or stopping is prohibited
R in front of driveways or entrances and exits
R on unsuitable surfaces
Driving systems189
Driving and parking
Z

Rif the area is lit by fluorescent bulbs or LED
lighting (the display may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in
winter
R if the camera lens is dirty or obstructed
R if the rear of your vehicle is damaged. In this
event, have the camera position and setting checked at a qualified specialist workshop
The field of vision and other functions of the
rear view camera may be restricted due to
additional accessories on the rear of the vehi-
cle (e.g. license plate holder, bicycle rack).
Activating/deactivating the rear view
camera
X To activate: make sure that the SmartKey
is in position 2 in the ignition lock.
X Make sure that the "Activation by R gear"
setting is active in COMAND, see the sep-
arate COMAND operating instructions.
X Engage reverse gear.
The area behind the vehicle is shown in the
COMAND display with guide lines.
X To change the function mode for vehi-
cles with trailer tow hitch: using the
COMAND controller, select symbol : for
the "Reverse parking" function or sym-
bol ; for "Coupling up a trailer" (see the
separate COMAND operating instructions).
The symbol of the selected function is high- lighted.
To deactivate: the rear view camera deacti-
vates in vehicles with an automatic transmis- sion if you shift the transmission to
P or after
driving forwards a short distance.
Displays in the Audio/COMAND display
The rear view camera may show a distorted
view of obstacles, show them incorrectly or
not at all. The rear view camera does not show
objects in the following positions:
R very close to the rear bumper
R under the rear bumper
R in the area immediately above the tailgate
handle
! Objects not at ground level may appear to
be further away than they actually are, e.g.: R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bot-
tom-most guideline.
:White guide line without turning the steer-
ing wheel, vehicle width including the
exterior mirrors (static)
;Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
=Red guide line for the vehicle width includ-
ing the exterior mirrors, for current steer-
ing wheel angle (dynamic)
?Yellow lane marking tires at current steer-
ing wheel angle (dynamic)
194Driving systems
Driving and parking

XTo switch to full screen mode: select
Full Screen by turning cVd the
COMAND controller and press W to con-
firm.
Displays in the COMAND display
Important safety notes
! Objects not at ground level may appear to
be further away than they actually are, e.g.: R the bumper of a parked vehicle
R the drawbar of a trailer
R the ball coupling of a trailer tow hitch
R the rear section of an HGV
R a slanted post
Use the guidelines only for orientation.
Approach objects no further than the bot-
tom-most guideline.
Top view with picture from the rear view
camera
:Symbol for the split screen setting with
top view and rear view camera image
;Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
=Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
?Yellow lane marking tires at current steer-
ing wheel angle (dynamic)
AYellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear of the
vehicle
BVehicle center axle (marker assistance)
CRed guide line at a distance of approx-
imately 12 in (0.30 m) from the rear of the
vehicle
DBumper
The guide lines are shown when the trans-
mission is in position R.
The distance specifications only apply to
objects that are at ground level.
Top view with picture from the front cam- era
:Symbol for the split screen setting with
top view and front camera image
;Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the front of the
vehicle
=Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering wheel angle (dynamic)
?Yellow lane marking tires at current steer-
ing wheel angle (dynamic)
200Driving systems
Driving and parking

Tires
Display messagesPossible causes/consequences and M Solutions
Correct
Tire Pressure
The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
X Check the tire pressures at the next opportunity ( Y page 339).
X If necessary, correct the tire pressure.
X Restart the tire pressure monitor ( Y page 342).
Check
Tires
The tire pressure in one or more tires has dropped significantly.
The wheel position is displayed in the multifunction display.
A warning tone also sounds.
GWARNING
Tire pressures that are too low pose the following hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may gre atly
impair tire traction.
R the driving characteristics, as well as steering and braki ng, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or b raking
maneuvers. Pay attention to the traffic conditions as y ou do so.
X Secure the vehicle against rolling away ( Y page 168).
X Check the tires and, if necessary, follow the instructions for a
flat tire ( Y page 314).
X Check the tire pressure ( Y page 339).
X If necessary, correct the tire pressure.
Display messages255
On-board computer and displays
Z

Display messagesPossible causes/consequences and M Solutions
Warning
Tire Malfunction
The tire pressure in one or more tires has dropped suddenly. The
wheel position is shown in the multifunction display.
GWARNING
Driving with a flat tire poses a risk of the following hazards:
R a flat tire affects the ability to steer or brake the vehicle.
R you could lose control of the vehicle.
R continued driving with a flat tire will cause excessive heat build-
up and possibly a fire.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or b raking
maneuvers. Pay attention to the traffic conditions as y ou do so.
X Secure the vehicle against rolling away ( Y page 168).
X Check the tires and, if necessary, follow the instructions for a
flat tire ( Y page 314).
Tire Press. Monitor
Currently UnavailZ
able
Because there is interference from a strong source of ra dio waves,
no signals from the tire pressure sensors are detected. The tire
pressure monitor is temporarily malfunctioning.
X Drive on.
The tire pressure monitor restarts automatically as soon a s the
problem has been resolved.
TirePress. SenZ
sor(s) Missing
There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display. X Have the faulty tire pressure sensor replaced at a quali fied spe-
cialist workshop.
Tire Pressure MonZ
itor Inoperative
No Wheel Sensors
The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
X Mount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically af ter driving
for a few minutes.
Tire pressure monZ
itor
Inoperative
The tire pressure monitor is faulty.
X Visit a qualified specialist workshop.
256Display messages
On-board computer and displays

Tires
ProblemPossible causes/consequences and M Solutions
h
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit.The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
GWARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards:
R they may burst, especially as the load and vehicle speed
increase.
R they may wear excessively and/or unevenly, which may gre atly
impair tire traction.
R the driving characteristics, as well as steering and braki ng, may
be greatly impaired.
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or b raking
maneuvers. Pay attention to the traffic conditions as y ou do so.
X Secure the vehicle against rolling away ( Y page 168).
X Observe the additional display messages in the multifunction
display.
X Check the tires and, if necessary, follow the instructions for a
flat tire ( Y page 314).
X Check the tire pressure ( Y page 339).
X If necessary, correct the tire pressure.
h
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) flashes for
approximately one
minute and then
remains lit.The tire pressure monitor is faulty.
GWARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction
display.
X Visit a qualified specialist workshop.
Warning and indicator lamps in the instrument cluster271
On-board computer and displays
Z

Displaying service messages
XSwitch on the ignition.
X Press the = or ; button on the steer-
ing wheel to select the
Serv. menu.
X Press the 9 or : button to select the
ASSYST PLUS submenu and confirm by
pressing the a button.
The service due date appears in the multi-
function display.
Information about Service
Resetting the ASSYST PLUS service
interval display
! If the ASSYST PLUS service interval dis-
play has been inadvertently reset, this set-
ting can be corrected at a qualified special-
ist workshop.
Have service work carried out as described in the Maintenance Booklet. This may oth-
erwise lead to increased wear and damage
to the major assemblies or the vehicle.
A qualified specialist workshop, e.g. an
authorized Mercedes-Benz Center, will reset
the ASSYST PLUS service interval display
after the service work has been carried out.
You can also obtain further information on
maintenance work, for example.
Special service requirements
The specified maintenance interval takes only the normal operation of the vehicle into
account. Under arduous operating conditions
or increased load on the vehicle, mainte-
nance work must be carried out more fre-
quently, for example:
R regular city driving with frequent intermedi-
ate stops
R if the vehicle is primarily used to travel
short distances R
use in mountainous terrain or on poor road
surfaces
R if the engine is often left idling for long peri-
ods
Under these or similar conditions, have, for
example, the air filter, engine oil and oil filter
replaced or changed more frequently. Under
arduous operating conditions, the tires must
be checked more often. Further information
can be obtained at a qualified specialist work- shop, e.g. an authorized Mercedes-Benz Cen-
ter.
Driving abroad
An extensive Mercedes-Benz Service network
is also available in other countries. You can
obtain further information from any author-
ized Mercedes-Benz Center.
Care
General notes
!
For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. a ring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film.
HEnvironmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
! Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
Care305
Maintenance and care
Z

should drive for a few minutes after clean-
ing. Braking heats the brake discs and the
brake pads/linings, thus drying them. The
vehicle can then be parked.
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents rec-
ommended and approved by Mercedes-Benz.
Exterior care
Automatic car wash
GWARNING
Braking efficiency is reduced after washing
the vehicle. There is a risk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
! If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes automati-
cally in certain situations. To prevent dam-
age to the vehicle, deactivate DISTRONIC
PLUS and the HOLD function in the follow-
ing or other similar situations:
R when towing the vehicle
R in the car wash
! Never clean your vehicle in a Touchless
Automatic Car Wash as these use special
cleaning agents. These cleaning agents can
damage the paintwork or plastic parts.
! Make sure that the automatic transmis-
sion is in position N when washing your
vehicle in a tow-through car wash. The vehi-
cle could be damaged if the transmission is
in another position.
! Make sure that:
R the side windows and the sliding sunroof
are fully closed.
R the ventilation/heating is switched off
(the OFF button has been pressed).
R the windshield wiper switch is in position
0 . Otherwise, the vehicle might be damaged.
You can wash the vehicle in an automatic car wash from the very start.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
After using an automatic car wash, wipe off
wax from the windshield and the wiper
blades. This will prevent smears and reduce
wiping noises caused by residue on the wind-shield.
Washing by hand
In some countries, washing by hand is only
allowed at specially equipped washing bays.
Observe the legal requirements in all coun-
tries concerned.
X Do not use hot water and do not wash the
vehicle in direct sunlight.
X Use a soft sponge to clean.
X Use a mild cleaning agent, such as a car
shampoo approved by Mercedes-Benz.
X Thoroughly hose down the vehicle with a
gentle jet of water.
X Do not point the water jet directly towards
the air inlet.
X Use plenty of water and rinse out the
sponge frequently.
X Rinse the vehicle with clean water and dry
thoroughly with a chamois.
X Do not let the cleaning agent dry on the
paintwork.
When using the vehicle in winter, remove all
traces of road salt deposits carefully and as
soon as possible.
Power washers
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect- edly. There is a risk of an accident.
306Care
Maintenance and care