2015 MERCEDES-BENZ GLC SUV Owners Manual

Active light function
The active light function is a system that
moves the headlamps according to the steer- ing movements of the front wheels. In this
way, relevant areas remain illuminated while
you are driving. This allows you to recognise
pedestrians, cyclists and animals.
Active: when the lights are switched on.
Vehicles with Lane Keeping Assist: the active
light function evaluates the course of the lane
in which you are driving and adjusts the light in advance.
Cornering light function The cornering light function improves the illu-
mination of the road over a wide angle in the direction you are turning, enabling better vis-
ibility in tight bends, for example. It can only
be activated when the dipped-beam head-
lamps are switched on. Active:
R
if you are driving at speeds below 40 km/h
and switch on the turn signal or turn the
steering wheel.
R if you are driving at speeds between
40 km/h and 70 km/h and turn the steer-
ing wheel.
The cornering light function may remain lit for
a short time, but is automatically switched off after no more than three minutes.
Cornering light function with roundaboutfunction:
The cornering light function is activated on
both sides before entering a roundabout
through an evaluation of the current GPS
position of the vehicle. It remains active until
after the vehicle has left the roundabout. In
this way, pedestrians crossing the road, for
example, are illuminated by your vehicle in
good time.
Motorway mode Active:
if you are driving at a speed above
110 km/h and do not make any large steering movements for at least 1,000 mor if you are
driving at a speed above 130 km/h.
Not active: if you are driving at speeds below
80 km/h following activation. 142
Exterior lightingLights and windscreen wipers

Extended range foglamps
The extended range foglamps reduce the
glare experienced by the driver and improve
the illumination of the edge of the carriage-
way.
Active:
if you are driving at speeds below
70 km/h and you switch on the rear foglamp.
Not active: if, following activation, you are
driving at speeds above 100 km/h or if you
switch off the rear foglamp.
Off-road lights The off-road lights facilitate the early recog-
nition of objects/obstacles when driving off-
road thanks to a symmetrical, wider and
brighter distribution of light from the dipped- beam headlamps.
Active: at speeds below 50 km/h.
The off-road lights are only active with the
following off-road programs:
R Slippery
R Off-road
R Travelling uphill
R Rocking free
Not active: at speeds above 50 km/h.
When the off-road lights are switched on, the cornering light function is permanently acti-
vated, the active light function is deactivated
and the headlamp range control is set to
static mode. Adaptive Highbeam Assist Plus
General notes With Adaptive Highbeam Assist Plus, you can
automatically switch between dipped-beam,
partial main-beam and main-beam head-
lamps.
Partial main-beam illumination is a form of
illumination whereby the main beam is direc-
ted past other road users. Other road users
are kept out of the main-beam. This prevents glare. If there is a vehicle in front, for example,
the main-beam headlamps illuminate the
areas to its right and left, and the vehicle in
front is illuminated by the dipped-beam head-
lamps.
The system automatically adapts the dipped- beam headlamp range depending on the dis-
tance to the other vehicle. Once the system
no longer detects any other vehicles, it
switches on the main-beam headlamps again.
If the main-beam or partial main-beam head-
lamps are causing too much reflection from
traffic signs, the lights are automatically dim-
med and glare for the driver caused by the
reflections is thus avoided.
The system's optical sensor is located behind
the windscreen near the overhead control
panel. Exterior lighting
143Lights and windscreen wipers Z

Important safety notes
G
WARNING
Adaptive Highbeam Assist Plus does not rec-
ognise 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
In very rare cases, Adaptive Highbeam Assist
Plus may not recognise road users who do
have lights, or may recognise them too late. In this, or in similar situations, the automatic
main-beam headlamps will not be deactivated
or will be activated despite the presence of
other road users. There is a risk of an acci-
dent.
Always carefully observe the traffic conditions and switch off the main-beam headlamps in
good time.
Adaptive Highbeam Assist Plus cannot take
into account road, weather or traffic condi-
tions. Adaptive Highbeam Assist Plus is only
an aid. You are responsible for adjusting the
vehicle's lighting to the prevailing light, visi-
bility and traffic conditions.
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
Plus on/off X
To switch on: turn the light switch to the
à position.
X Press the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunc-
tion display lights up when it is dark and the
light sensor switches on the dipped-beam
headlamps.
At speeds above approx. 25 km/h: the
headlamp range is automatically controlled according to the distance to other road
users.
At speeds above approx. 30 km/h:
R If no other road users are detected, the
main-beam headlamps are automatically
switched on.
R If other road users are detected, the par-
tial main-beam headlamps are automat-
ically switched on.
The K indicator lamp in the instrument
cluster also lights up.
At speeds below approx. 25 km/h or
when there is sufficient street lighting:
R The partial main-beam headlamps are
switched off automatically.
R The main-beam headlamps are switched
off automatically.
The K indicator lamp in the instrument
cluster goes out. The _indicator lamp
in the multifunction display remains lit.
X To switch off: move the combination
switch back to its normal position or move the light switch to another position.
The _ indicator lamp in the multifunc-
tion 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. 144
Exterior lightingLights and windscreen wipers

Interior lighting
Overview of interior lighting
Front overhead control panel :
p Switches the left-hand front reading
lamp on/off
; | Switches the automatic interior
lighting control on/off
= c Switches the front interior lighting
on/off
? u Switches the rear interior lighting
on/off
A p Switches the right-hand front read-
ing lamp on/off
Control panel in the grab handle (rear
compartment) :
Reading lamp
; p Switches the 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 position 2in the
ignition lock.
The colour, brightness and display lamp for
the ambient lighting may be set using
COMAND Online or Audio 20 (see the sepa-
rate operating instructions).
Automatic interior lighting control X
To switch on/off: press the|button.
When the automatic interior lighting con-
trol is switched on, the button is flush with the overhead control panel.
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 activated for a short
time when the key is removed from the igni-
tion lock. This delayed switch-off can be
adjusted using COMAND Online or Audio 20
(see the separate operating instructions).
Manual interior lighting control X
To switch the front interior lighting on/
off: press the cbutton.
X To switch the rear interior lighting on/
off: press the ubutton.
X To switch the reading lamps on/off:
press the pbutton. Interior lighting
145Lights and windscreen wipers Z

Crash-responsive emergency lighting
The interior lighting is activated automatically
if the vehicle is involved in an accident.
X To switch off the crash-responsive
emergency lighting: press the hazard
warning lamp button.
or X Lock and then unlock the vehicle using the
key. 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 that has been dropped or if
its glass tube has been scratched.
The bulb may explode if:
R you touch it
R it is hot
R you drop it
R you scratch it
Only operate bulbs in enclosed lamps
designed for that purpose. Only fit spare
bulbs of the same type and the specified volt- age.
Marks on the glass tube 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.
Protect bulbs from moisture during opera-
tion. Do not allow bulbs to come into contact
with liquids.
Only replace the bulbs listed (Y page 146).
Have the bulbs that you cannot replace your- self replaced at a qualified specialist work-
shop.
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 checked
regularly.
Vehicles with LED headlamps: the front
and rear light clusters of your vehicle are
equipped with LED light bulbs. Do not replace
the bulbs yourself. Contact a qualified spe-
cialist workshop which has 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 type can be found in the
legend. Vehicles with halogen headlamps
:
Dipped-beam headlamp: H7 55 W
; Main-beam headlamp: H7 55 W
= Turn signal lamp: PY 21 W 146
Replacing bulbsLights and windscreen wipers

Tail lamps
:
Turn signal lamp: PY 21 W
; Reversing lamp: W 16 W Replacing front bulbs (vehicles with
halogen headlamps)
Fitting/removing the cover on the front wheel arch You must remove the cover of the front wheel
housing before you can change the front turn signal lamp.
X To remove: switch off the lights.
X Turn the front wheels inwards.
X Turn rotary knob :180° outwards until it
stops using a suitable object.
Cover ;is released.
X Fold cover ;upwards.
X To fit: insert cover ;into the left, right and
two lower catches.
X Turn rotary knob :180° inwards until it
stops using a suitable object.
Cover ;is locked. Dipped-beam headlamps
X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anti-clockwise and
remove it.
X Push bulb holder ;upwards and pull out.
X Pull the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;into the groove with
the lug at the top.
X Push bulb holder ;down until it engages
audibly.
X Press on housing cover :and turn it to the
right.
Main-beam headlamps X
Switch off the lights.
X Open the bonnet.
X Turn housing cover :anti-clockwise and
remove it.
X Push bulb holder ;upwards and pull out.
X Pull the bulb out of bulb holder ;. Replacing bulbs
147Lights and windscreen wipers Z

X
Insert the new bulb into bulb holder ;.
X Insert bulb holder ;into the groove with
the lug at the top.
X Push bulb holder ;down until it engages
audibly.
X Press on housing cover :and turn it to the
right.
Turn signals X
Remove the cover in the front wheel arch
(Y page 147).
X Turn bulb holder :anti-clockwise using
the grip under the headlamp casing and
remove it downwards with the bulb.
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 :, turn clockwise and
lock.
X Replace the cover in the front wheel arch
(Y page 147). Replacing rear bulbs (vehicles with
halogen headlamps)
Opening and closing the side trim pan-
els Example: right-hand side trim panel
You must open the side trim panel in the lug-gage compartment before you can replace
the bulbs in the tail lamps.
X To open: release right or left side trim
panel :at the top and fold it down in the
direction of the arrow.
X To close: insert side trim panel :.
Tail lamps Replacing the bulbs in the turn signal
lamps
X Switch off the lights.
X Open the luggage compartment.
X Open the side trim panel (Y page 148). X
Turn bulb holder :anti-clockwise and pull
out. 148
Replacing bulbsLights and windscreen wipers

X
Turn the bulb anti-clockwise, applying
slight pressure, and remove it from the bulb
holder :.
X Insert the new bulb into bulb holder :and
turn it clockwise.
X Insert bulb holder :and turn it clockwise.
X Close the side trim panel (Y page 148).
Replacing reversing lamps
Due to their location, have the bulbs in the
reversing lamp in the tailgate replaced at a
qualified specialist workshop.
X Switch off the lights.
X Open the tailgate. Example: right-hand side handle
X In recess ?on the inside of the closing
handle, prise out and remove the upper
section of handle =with a flat and smooth
object, e.g. a screwdriver.
X Pull the lower section of handle :with a
strong tug to remove it from the trim and
then place it to one side. X
Reach under the right-hand side of trim B
and lightly tug along the entire length of the trim in order to unclip it.
X Release and pull out locator lighting con-
nector Cat the latch.
X Vehicles with EASY-PACK tailgate: pull out
the plug connector for the switch of the
EASY-PACK tailgate in the top right of the
trim.
X Vehicles with electric fold-out trailer tow
hitch: unlock and pull out the plug connec-
tor for the electric fold-out trailer tow hitch
in the top left of the trim.
X Place trim Bto one side. X
On the side where the bulb is to be
replaced, unclip the remaining part of trim
D from the assembly with a strong tug,
until bulb holder Eis accessible. X
Turn the bulb anticlockwise and pull it out
of bulb holder E.
X Insert the new bulb into bulb holder Eand
turn it clockwise. Replacing bulbs
149Lights and windscreen wipers Z