2018 MERCEDES-BENZ GLC SUV Owner's Manual

Replacing rear bulbs (vehicles with
halogen headlamps)
Opening and closing the side trim pan-
els
Example: right-hand side paneling
You must open the side trim panel in the cargo
compartment before you can replace the bulbs
in the tail lamps.
XTo open: release right or left side trim
panel :at the top and fold it down in the
direction of the arrow.
XTo close: insert side trim panel :.
Rear lamp cluster
Changing the backup lamp
Due to their location, have the bulbs in the
backup lamp in the tailgate replaced at a quali-
fied specialist workshop.
XSwitch off the lights.
XOpen the tailgate.
Example: right-hand side handle
XIn recess?on the inside of the closing han-
dle, pry off and remove the upper section of handle
=with a flat, smooth object, e.g. a
screwdriver.
XPull the lower section of handle :with a
strong tug to remove it from the trim and then place it to one side.
XReach under the right-hand side of trim B
and lightly tug along the entire length of the
trim in order to unclip it.
XPull out connector Cof the surround lighting
by releasing the latches.
XVehicles with EASY-PACK tailgate: pull out the
plug connector for the switch at the top right
of the trim.
XVehicles with electric fold-out trailer tow
hitch: unlock and pull out the plug connector
for the switch at the top left of the trim.
XPlace trim Bto one side.
XUnclip the remaining part of trim Dfrom the
assembly on the corresponding side using a
sudden, sharp movement, until bulb holder
E is accessible.
Replacing bulbs119
Lights and windshield wipers
Z

XPull the defective bulb out of bulb holderE.
XInsert the new bulb into bulb holderE.
XPosition trimDand engage it in place by
tapping it with your hand.
XCheck that all the metal clips are inserted in
the parts that were placed to one side: two
clips ;in the upper section of handle =and
four clips Ain trim B.
XIf not, remove the missing metal clips from
the metal openings in the tailgate and insert
them in the appropriate places.
XGrasp trim Band connect plug connector C
to the surround lighting.
iThe surround lighting only illuminates when
the tailgate has been shut and reopened.
XVehicles with EASY-PACK tailgate: insert the
plug connector for the switch at the top right
of the trim.
XVehicles with electric fold-out trailer tow
hitch: insert the plug connector for the switch
at the top left of the trim.
XPosition trim Band engage it in place by
tapping it with your hand, starting from the
outside.
XClip in the lower section of handle :again.
XInsert and engage the upper section of handle
=into lower section :.
Windshield wipers
Switching the windshield wipers
on/off
!
Do not operate the windshield wipers when
the windshield is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windshield can scratch the glass
if wiping takes place when the windshield is
dry. If it is necessary to switch on the windshield
wipers in dry weather conditions, always use
washer fluid when operating the windshield
wipers.
!If the windshield wipers leave smears on the
windshield after the vehicle has been washed
in an automatic car wash, wax or other resi-
dues may be the reason for this. Clean the
windshield using washer fluid after washing
the vehicle in an automatic car wash.
!Intermittent wiping with rain sensor: due to
optical influences and the windshield becom-
ing dirty in dry weather conditions, the wind-
shield wipers may be activated inadvertently.
This could then damage the windshield wiper
blades or scratch the windshield.
For this reason, you should always switch off
the windshield wipers in dry weather.
1$ Windshield wiper off
2ÄIntermittent wipe, normal
3ÅIntermittent wipe, frequent
4°Continuous wipe, slow
5¯Continuous wipe, fast
BíSingle wipe
î Wipe with washer fluid
XSwitch on the ignition.
XTurn the combination switch to the corre-
sponding position.
Vehicles with a rain sensor: in theÅor
Ä position, the appropriate wipe frequency
is automatically set according to the intensity of
the rain. In the Åposition, the rain sensor is
more sensitive than in the Äposition, caus-
ing the windshield wiper to wipe more fre-
quently.
If the wiper blades are worn, the windshield will
no longer be wiped properly. This could prevent
you from observing the traffic conditions.
120Windshield wipers
Lights and windshield wipers

Switching the rear window wipers
on/off
:èSwitch
2bWipes with washer fluid
3ISwitches on intermittent wiping
40 Switches off intermittent wiping
5b Wipes with washer fluid
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 136).
XTurn switch :on the combination switch to
the corresponding position.
When the rear window wiper is switched on,
the è symbol appears in the instrument
cluster.
Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!Never open the hood/tailgate if a wiper arm
has been folded away from the windshield/
rear window.
Never fold a windshield wiper arm without a
wiper blade back onto the windshield/rear
window.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release the
wiper arm without a wiper blade and it falls
onto the windshield/rear window, the wind- shield/rear window may be damaged by the
force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified spe-
cialist workshop.
!To avoid damaging the wiper blades, make
sure that you touch only the wiper arm of the
wiper.
Changing the windshield wiper blades
Moving the wiper arms to a vertical posi-
tion
On vehicles without KEYLESS-GO or KEY-
LESS‑GO start function:
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 136).
XSet the windshield wipers to the °posi-
tion on the combination switch.
XWhen the wiper arms are vertical to the hood,
turn the SmartKey to position uin the igni-
tion lock and remove SmartKey.
XFold the wiper arm away from the windshield.
On vehicles with KEYLESS-GO or KEY-
LESS‑GO start function:
XSwitch off the engine.
XRemove your foot from the brake pedal.
XSet the windshield wiper to the °position
on the combination switch.
XPress the Start/Stop button repeatedly until
the windshield wiper starts.
XWhen the wiper arms are vertical to the hood,
press the Start/Stop button.
XFold the wiper arm away from the windshield.
Removing the wiper blades
Windshield wipers121
Lights and windshield wipers
Z

XHold on to the wiper arm with one hand. With
the other hand, turn the wiper blade in the
direction of arrow:away from the wiper arm
as far as it will go.
XSlide the catch ;in the direction of arrow =
until it engages in the removal position with a
noticeable click.
XRemove the wiper blade in the direction of
arrow ?away from the wiper arm.
Installing the wiper blades
XInsert the new wiper blade into the wiper arm
in the direction of arrow :.
XSlide the catch;in the direction of arrow =
until it engages in the locking position with a
noticeable click.
XMake sure that the wiper blade is seated cor-
rectly.
XFold the wiper arm back onto the windshield.
XRemove the protective film :from the ser-
vice indicator on the tip of the wiper blade.
If the color of the service indicator changes from
black to yellow, the wiper blades should be
replaced.
iThe duration of the color change varies
depending on the usage conditions.
Changing the rear window wiper blade
Removing a wiper blade
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS-GO or KEY-
LESS‑ GO start function:
XOpen the driver's door.
The vehicle electronics are now in position
u. This is the same as: "Key removed".
122Windshield wipers
Lights and windshield wipers

XFold wiper arm?away from the rear window.
XPress both release clips ;.
XFold wiper blade:in the direction of
arrow =away from wiper arm ?.
XRemove wiper blade:in the direction of
arrow A.
Installing a wiper blade
XPosition new wiper blade :with recess B
on lug A.
XFold wiper blade :in the direction of arrow
= onto the wiper arm until retaining clips ;
engage in bracket ?.
XMake sure that wiper blade :is seated cor-
rectly.
XFold the wiper arm back onto the rear win-
dow.
Problems with the windshield wipers
ProblemPossible causes/consequences and MSolutions
The windshield wipers
are jammed.Leaves or snow, for example, are obstructing windshield wiper move-
ment. The wiper motor has been deactivated.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS-GO or KEYLESS ‑GO start function:
XOpen the driver's door.
The vehicle electronics are now in positionu. This means: "Key
removed".
XRemove the cause of the obstruction.
XSwitch the windshield wipers back on.
The windshield wipers
fail completely.The windshield wiper drive is malfunctioning.
XSelect another wiper speed on the combination switch.
XHave the windshield wipers checked at a qualified specialist work-
shop.
The windshield washer
fluid from the spray noz-
zles no longer hits the
center of the windshield.The spray nozzles are misaligned.
XHave the spray nozzles adjusted at a qualified specialist workshop.
Windshield wipers123
Lights and windshield wipers
Z

Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Ractivate the "Windshield defrosting" function
briefly, if required
Climate control regulates the temperature and
air humidity in the vehicle interior. The interior
filter cleans the air, thus improving the interior
climate.
The "Cooling with air dehumidification" function
is only available when the engine is running.
Optimum climate control is only achieved with
the side windows and roof closed.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 139).
The integrated filter filters out most particles of dust and soot and completely filters out pollen. It also reduces gaseous pollutants and odors. A
clogged filter reduces the amount of air supplied
to the vehicle interior. For this reason, you
should always observe the interval for replacing
the filter, which is specified in the Maintenance
Booklet. As it depends on environmental condi-
tions, e.g. heavy air pollution, the interval may
be shorter than stated in the Maintenance Book-
let.
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 92). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
iIt is possible that the blower may be activa-
ted automatically 60 minutes after the Smart-
Key has been removed depending on various
factors, e.g. the outside temperature. The
vehicle is then ventilated for 30 minutes to dry
the automatic climate control.
iHybrid vehicles: be sure to observe the
notes in the supplement. Otherwise, you may
not recognize dangers.
Control panel for dual-zone automatic climate control
Example: control panel for dual-zone automatic climate control
:
Sets the temperature, left (Ypage 128)
;Sets the air distribution (Ypage 129)
124Overview of climate control systems
Climate control

=Sets the airflow (Ypage 129)
Switches off climate control (
Ypage 127)
?Sets climate control to automatic (Ypage 128)
ADefrosts the windshield (Ypage 130)
BCalls up the climate control menu of the multimedia system (Ypage 284)
CSwitches the rear window defroster on/off (Ypage 130)
DActivates or deactivates synchronization (Ypage 130)
ESwitches air-recirculation mode manually on/off (Ypage 131)
FSwitches cooling with air dehumidification on/off (Ypage 128)
GSets the temperature, right (Ypage 128)
Control panel for 3-zone automatic climate control
Example for vehicles in Canada: control panel for 3-zone automatic climate control
Front control panel
:Sets the temperature, left (Ypage 128)
;Sets the air distribution, left (Ypage 129)
=Sets the airflow (Ypage 129)
Switches off climate control (
Ypage 127)
?Sets climate control to automatic (Ypage 128)
ADefrosts the windshield (Ypage 130)
BCalls up the climate control menu of the multimedia system (Ypage 284)
Switches the residual heat on/off (
Ypage 131)
CSwitches the rear window defroster on/off (Ypage 130)
DSwitches cooling with air dehumidification on/off (Ypage 128)
ESwitches air-recirculation mode manually on/off (Ypage 131)
FSets the air distribution, right (Ypage 129)
GSets the temperature, right (Ypage 128)
Rear control panel
HSets the temperature (Ypage 128)
Overview of climate control systems125
Climate control

IDisplay
JSets the airflow (Ypage 129)
Example for vehicles in the USA: control panel for 3-zone automatic climate control
Front control panel
:Sets the temperature, left (Ypage 128)
;Sets the air distribution, left (Ypage 129)
=Sets the airflow (Ypage 129)
Switches off climate control (
Ypage 127)
?Sets climate control to automatic (Ypage 128)
ADefrosts the windshield (Ypage 130)
BCalls up the climate control menu of the multimedia system (Ypage 284)
Switches the residual heat on/off (
Ypage 131)
CSwitches the rear window defroster on/off (Ypage 130)
DSwitches cooling with air dehumidification on/off (Ypage 128)
ESwitches air-recirculation mode manually on/off (Ypage 131)
FSets the air distribution, right (Ypage 129)
GSets the temperature, right (Ypage 128)
Rear control panel
HSets the temperature (Ypage 128)
IDisplay
JSets the airflow (Ypage 129)
Optimum use of automatic climate
control
Optimum use of automatic climate con-
trol
The following contains notes and recommenda-
tions on how best to use dual-zone automatic
climate control or 3-zone automatic climate
control.
XActivate climate control using the Ã
rocker switch. The indicator lamp above the
à rocker switch lights up. The "Cooling
with dehumidification" function is activated in
automatic mode.
XSet the temperature to 72 ‡ (22 †).
iOnly use the "Windshield defrosting" func-
tion briefly until the windshield is clear again.
126Overview of climatecont rol systems
Climate control