2017 MERCEDES-BENZ GLA SUV light

lamps from main beam to dipped beam. Once
the system no longer detects any other vehicles, it switches on the main-beam headlamps again.
The system's optical sensor is located behind
the windscreen near the overhead control
panel.
Important safety notes G
WARNING
Adaptive Highbeam Assist does not recognise road users:
R who have no lights, e.g. pedestrians
R who have poor lighting, e.g. cyclists
R whose lighting is blocked, e.g. by a barrier
On very rare occasions, Adaptive Highbeam
Assist may fail to recognise other road users
that have lights, or may recognise them too
late. In this, or in similar situations, the auto-
matic main-beam headlamps will not be deac-
tivated or will be activated despite the pres-
ence of other road users. There is a risk of an accident.
Always carefully observe the traffic conditionsand switch off the main-beam headlamps in
good time.
Adaptive Highbeam Assist cannot take into
account road, weather or traffic conditions.
Adaptive Highbeam Assist is only an aid. You are
responsible for adjusting the vehicle's lighting
to the prevailing light, visibility and traffic con-
ditions.
In particular, the detection of obstacles can be
restricted if there is:
R poor visibility, e.g. due to fog, heavy rain or
snow
R dirt on the sensors or if the sensors are
obscured
Switching Adaptive Highbeam Assist
on/off X
To activate: turn the light switch to Ã.
X Press the combination switch beyond the
pressure point in the direction of arrow :.
When the _light sensor switches on the
dipped-beam headlamps when it is dark, the indicator lamp in the multifunction display
lights up.
If you are driving at speeds above approx-
imately 30 km/h and no other road users are
recognised:
The main-beam headlamps are switched on
automatically. The Kindicator lamp in the
instrument cluster also lights up.
If you are driving at speeds below 25 km/h or other road users are recognised or the roads
are adequately lit:
The main-beam headlamps are switched off
automatically. The Kindicator lamp in the
instrument cluster goes out. The _indi-
cator lamp in the multifunction display
remains lit.
X To deactivate: move the combination switch
back to its normal position.
The _ indicator lamp in the multifunction
display goes out. Headlamps misted up on the inside
Certain climatic and physical conditions may
cause moisture to form in the headlamp. This
moisture does not affect the functionality of the headlamp. Interior lighting
Overview of interior lighting
Front overhead control panel :
p Switches the left-hand front reading
lamp on or off
; c Switches the front interior lighting on
= v Switches the rear interior lighting on/
off Interior lighting
119Lights and windscreen wipers Z

?
| Switches the front interior lighting/
automatic interior lighting control off
A p Switches the right-hand front reading
lamp on or off
B Switches the automatic interior lighting con-
trol on
Rear compartment control panel Vehicles with a panorama sliding sunroof
:
p Switches the reading lamp on or off Vehicles without a panorama sliding sunroof
: p Switches the left-hand reading lamp
on/off
; p Switches the right-hand reading lamp
on/off Interior lighting control
General notes In order to prevent the vehicle's battery from
discharging, the interior lighting functions are
automatically deactivated after some time
except for when the key is in key position 2in
the ignition lock. The colour and brightness for the ambient light-
ing may be set via the multimedia system; see
the separate operating instructions.
Automatic interior lighting control X
To switch on: set the switch to centre posi-
tion B.
X To switch off: set the switch to the |
position.
The interior lighting automatically switches on if you:
R unlock the vehicle
R open a door
R remove the key from the ignition lock
The interior lighting is switched on for a short
time when the key is removed from the ignition lock. This delayed switch-off can be adjusted via
the multimedia system; see the separate oper-
ating instructions. Replacing bulbs
Important safety notes
G
WARNING
Bulbs, lamps and plug connectors can
become very hot during use. When replacing a bulb, you could burn yourself on these com-
ponents. There is a risk of injury.
Allow these components to cool down before replacing the bulb.
Do not use a bulb if it has been dropped or if its
glass has been scratched.
The bulb may explode if:
R you touch it
R it is hot
R you drop it
R you scratch it
Use bulbs only in closed lamps that have been
designed for this purpose. Fit only spare bulbs of the same type and the specified voltage.
Marks on the glass reduce the service life of the bulbs. Do not touch the glass tube with your
bare hands. If necessary, clean the glass tube
when cold with alcohol or spirit and rub it off
with a lint-free cloth. 120
Replacing bulbsLights and windscreen wipers

Protect bulbs from moisture during operation.
Do not allow bulbs to come into contact with
liquids.
Replace only the bulbs listed (Y page 121).
Have the bulbs that you cannot change yourself replaced at a qualified specialist workshop.
If you require assistance replacing bulbs, con-
sult a qualified specialist workshop.
If the new bulb still does not light up, consult a
qualified specialist workshop.
Headlamps and lights are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times. Have
the headlamp setting verified regularly.
Vehicles with LED headlamps: the front and
rear lamp clusters of your vehicle are equipped
with LED bulbs. Do not replace the bulbs your-
self. Contact a qualified specialist workshop
with the necessary specialist knowledge and
tools to carry out the work required. Overview of bulb types
You can replace the following bulbs. The details for the bulb types can be found in the legend. Vehicles with halogen headlamps
:
Turn signal lamp: PY 21 W
; Main-beam headlamp/daytime driving
lamp/side lamp/parking lamp: H15 55 W/
15 W
= Dipped-beam headlamp: H15 55 W Tail lamps (vehicles with halogen headlamps)
: Reversing lamp: W 16 W
; Turn signal lamp: PY 21 W
= Brake lamp: W 16 W
? Rear foglamp: H 21 W Replacing front bulbs
Fitting/removing the cover on the front wheel arch You must remove the cover in the front wheel
arch before you can change the front turn signal
lamp.
X To remove: switch off the lights.
X Turn the front wheels inwards.
X Slide cover :up and remove it.
X To fit: insert cover :again and slide it down
until it engages. Replacing bulbs
121Lights and windscreen wipers Z

Dipped-beam headlamps (halogen
headlamps)
X
Remove the cover in the front wheel arch
(Y page 121).
X Turn housing cover :anti-clockwise and
remove it.
X Turn bulb holder ;anti-clockwise and pull
out.
X Pull the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;and turn it clockwise.
X Press on housing cover :and turn it to the
right.
X Replace the cover in the front wheel arch
(Y page 121).
Main-beam headlamps/daytime driving lights/side lamps and parking lamps
(vehicles with halogen headlamps) X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anti-clockwise and
remove it.
X Turn bulb holder ;anti-clockwise and pull
out. X
Insert the new bulb and engage it to the stop.
X Press on housing cover :and turn it to the
right.
Turn signal lamp (halogen headlamps) X
Switch off the lights.
X Open the bonnet.
X Turn bulb holder :anticlockwise and pull
out.
X Turn the bulb anti-clockwise and pull it out of
bulb holder :.
X Insert the new bulb into bulb holder :.
X Insert bulb holder :and turn it clockwise
until it engages. Replacing rear bulbs
Opening and closing the side trim pan-
els Left-hand side trim panel
You must open the side trim panel in the luggage
compartment before you can replace the bulbs
in the tail lamps. 122
Replacing bulbsLigh
ts and windscreen wipers

X
To open: turn release knob :anti-clockwise
and remove side trim panel ;.
X To close: insert side trim panel ;and turn
release knob :clockwise. Right-hand side trim panel
You must open the side trim panel in the luggage compartment before you can replace the bulbs
in the tail lamps.
X To open: release right-hand trim panel :at
the top and fold it down in the direction of the
arrow.
X To close: insert side trim panel :.
Tail lamps Due to their position, have the bulbs in the
reversing lamp (vehicles with halogen head-
lamps) and rear foglamp in the tailgate changed at a qualified specialist workshop.
X Switch off the lights.
X Open the luggage compartment.
X Open the side trim panel (Y page 122).X
Release and remove connector ;.
X Hold the tail lamp and unscrew wing nut :.
X Remove the tail lamp. Tail lamps
X Remove screws =using a screwdriver.
X Remove the bulb holder from the tail lamp. Bulb holder
?
Turn signal
A Brake lamp
X Turn signal: press the bulb gently into the
bulb holder, turn it anti-clockwise and remove
it from the bulb holder.
X Insert the new bulb into the bulb holder and
turn it clockwise.
X Brake lamp: remove the corresponding bulb
from the bulb holder.
X Insert the new bulb into the bulb holder.
X Insert the bulb holder into the tail lamp and
screw it firmly into place using screws =.
X Insert the tail lamp into the vehicle.
X Tighten wing nut :and re-establish contact
with connector ;.
X Close the side trim panel (Y page 122). Replacing bulbs
123Lights andwindscreen wipers Z

Windscreen wipers
Switching the windscreen wipers on/
off
! Do not operate the windscreen wipers when
the windscreen is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windscreen can scratch the
glass if wiping takes place when the wind-
screen is dry.
If it is necessary to switch on the windscreen wipers in dry weather conditions, always
operate them using washer fluid.
! If the windscreen wipers leave smears on
the windscreen after the vehicle has been
washed in an automatic car wash, this may be
due to wax or other residue. Clean the wind-
screen with washer fluid after an automatic
car wash. Combination switch
1
$ Windscreen wipers off
2 Ä Intermittent wipe, low (rain sensor set
to low sensitivity)
3 Å Intermittent wipe, high (rain sensor
set to high sensitivity)
4 ° Continuous wipe, slow
5 ¯ Continuous wipe, fast
B í Single wipe/î wipes the wind-
screen using washer fluid
X Turn the key to position 1or2 in the igni-
tion lock (Y page 144).
X Turn the combination switch to the corre-
sponding position.
! Vehicles with a rain sensor: if the wind-
screen becomes dirty in dry weather condi-
tions, the windscreen wipers may be activa-
ted inadvertently. This could damage the windscreen wiper blades or scratch the wind-
screen.
For this reason, you should always switch off
the windscreen wipers in dry weather.
Vehicles with a rain sensor: in the ÄorÅ
position, the appropriate wiping 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 windscreen wiper to wipe more fre-
quently.
If the wiper blades are worn, the windscreen will
no longer be wiped properly. This could mean
you are unable to observe the traffic conditions. Switching the rear window wiper on/
off Combination switch
:
è Switch
2 ô Wipes with washer fluid
3 ISwitches on intermittent wiping
4 0Switches off intermittent wiping
5 ô Wipes with washer fluid
X Turn the key to position 1or 2in the ignition
lock (Y page 144).
X Slide switch :on the combination switch to
the corresponding position.
When the rear window wiper is switched on,
the è symbol appears in the assistance
graphic in the instrument cluster. Further
information on the assistance graphic
(Y page 226). 124
Windscreen wipersLights and windscreen wipers

Replacing the wiper blades
Important safety notes G
WARNING
If the windscreen wipers begin to move while
you are changing the wiper blades, you can be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windscreen wipers and
ignition before changing the wiper blades.
! To avoid damaging the windscreen wiper
blades, make sure that you touch only the
wiper arm of the windscreen wiper.
! Never open the bonnet/tailgate if a wiper
arm is folded away from the windscreen/rear
window.
Never fold a windscreen wiper arm without a
wiper blade back onto the windscreen/rear
window.
Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release the
wiper arm without a wiper blade and it falls
onto the windscreen/rear window, the wind-
screen/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.
Replacing the windscreen wiper blades Removing the wiper blades
X Vehicles without KEYLESS-GO or KEY-
LESS-GO start function:
remove the key
from the ignition lock.
X Vehicles with KEYLESS-GO or KEYLESS-
GO start function:
switch off the engine.
X Fold the wiper arm away from the windscreen. X
Hold 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.
X Slide catch ;in the direction of arrow =
until it engages in the removal position with a noticeable click. X
Remove the wiper blade in the direction of
arrow ?away from the wiper arm.
Fitting the wiper blades X
Insert the new wiper blade into the wiper arm
in the direction of arrow :. Windscreen wipers
125Lights and windscreen wipers Z

X
Slide catch ;in the direction of arrow =
until it engages in the locking position with a
noticeable click.
X Make sure that the wiper blade sits correctly.
X Fold the wiper arm back onto the windscreen. X
Remove protective film :of the service indi-
cator on the tip of the wiper blade.
If the colour of the service indicator changes
from black to yellow, the wiper blades should be replaced.
i The duration of the colour change varies
depending on the usage conditions. Replacing the rear window wiper blade Removing a wiper blade
X
Vehicles without KEYLESS-GO or KEY-
LESS-GO start function: remove the key
from the ignition lock.
X Vehicles with KEYLESS-GO or KEYLESS-
GO start function: switch off the engine.
X Fold wiper arm ?away from the rear window.
X Press both release clips ;.
X Fold wiper blade :in the direction of
arrow =away from wiper arm ?.
X Remove wiper blade :in the direction of
arrow A.
Fitting a wiper blade X
Position new wiper blade :with recess B
on lug A.
X Fold wiper blade :in the direction of arrow
= onto the wiper arm until retaining clips ;
engage in bracket ?.
X Make sure that wiper blade :is seated cor-
rectly.
X Fold the wiper arm back onto the rear win-
dow. 126
Windscreen wipersLights and windscreen wipers