2018 MERCEDES-BENZ GLS SUV low beam

The blueKindicator lamp in the instru-
ment cluster lights up when the high-beam
headlamps are switched on.
XTo switch off the high-beam headlamps:
move the combination switch back to its nor-
mal position.
The blue Kindicator lamp in the instru-
ment cluster goes out.
Vehicles with Adaptive Highbeam Assist: if
Adaptive Highbeam Assist is activated, it auto-
matically controls activation and deactivation of
the high-beam headlamps (
Ypage 118).
Hazard warning lamps
XTo switch on the hazard warning lamps:
press button :.
All turn signals flash. If you now switch on a
turn signal using the combination switch, only
the turn signal lamp on the corresponding
side of the vehicle will flash.
XTo switch off the hazard warning lamps:
press button :.
The hazard warning lamps automatically switch
on if:
Ran air bag is deployed or
Rthe vehicle decelerates rapidly from a speed
of above 45 mph (70 km/h) and comes to a
standstill
The hazard warning lamps switch off automati-
cally if the vehicle reaches a speed of above
6 mph (10 km/h) again after a full brake appli-
cation.
iThe hazard warning lamps still operate if the
ignition is switched off.
Intelligent Light System
General notes
The Intelligent Light System is a system that
adjusts the headlamps automatically to suit the
prevailing driving and weather conditions. It
offers advanced functions for improved illumi-
nation of the road surface, e.g. depending on the
vehicle speed or weather conditions. The sys-
tem includes the active light function, cornering
light function, highway mode and extended
range fog lamps. The system is only active when
it is dark.
You can activate or deactivate the "Intelligent
Light System" using the on-board computer
(
Ypage 243).
Active light function
The active light function is a system that moves
the headlamps according to the steering move-
ments of the front wheels. In this way, relevant
areas remain illuminated while driving. This
allows you to recognize pedestrians, cyclists
and animals sooner.
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 visi-
bility in tight bends, for example. It can only be
activated when the low-beam headlamps are
switched on.
Active:
Rif you are driving at speeds below 25 mph
(40 km/h) and switch on the turn signal or
turn the steering wheel
Rif you are driving at speeds between 25 mph
(40 km/h) and 45 mph (70 km/h) and turn
the steering wheel
The cornering lamp may remain lit for a short
time, but is automatically switched off after no
more than three minutes.
Exterior lighting117
Lights and windshield wipers
Z

Highway mode
Highway mode increases the range of the beam.
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 m or 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.
Extended range fog lamps
The extended range fog lamps reduce the glare
experienced by the driver and improve the illu-
mination of the edge of the road.
Active: if you are driving at speeds below
40 mph (70 km/h) and you switch on the rear
fog lamp.
Not active: if, following activation, you are driv-
ing at speeds above 60 mph (100 km/h) or if you
switch off the rear fog lamp
Off-road lights
The off-road lights facilitate the early recogni-
tion of objects/obstacles when driving off-road
thanks to a symmetrical, wider and brighter dis- tribution of light from the low-beam headlamps.
Active: when driving at speeds no faster than
30 mph (50 km/h) and the off-road program
selector wheel is in position 1 or 2.
Not active: when driving at speeds above
30 mph (50 km/h).
When the off-road lights are switched on, the
cornering light function is permanently activa-
ted, the active light function is deactivated and
the headlamp range control is set to static
mode.
Adaptive Highbeam Assist
General notes
You can use this function to set the headlamps
to change between low beam and high beam
automatically. The system recognizes vehicles
with their lights on, either approaching from the
opposite direction or traveling in front of your
vehicle, and consequently switches the head-
lamps from high beam to low beam.
The system automatically adapts the low-beam
headlamp range depending on the distance to
the other vehicle. Once the system no longer detects any other vehicles, it reactivates the
high-beam headlamps.
The system's optical sensor is located behind
the windshield near the overhead control panel.
Important safety notes
GWARNING
Adaptive Highbeam Assist does not recognize
road users:
Rwho have no lights, e.g. pedestrians
Rwho have poor lighting, e.g. cyclists
Rwhose lighting is blocked, e.g. by a barrier
On very rare occasions, Adaptive Highbeam
Assist may fail to recognize other road users
that have lights, or may recognize them too
late. In this, or in similar situations, the auto-
matic high-beam headlamps will not be deac-
tivated or will be activated regardless. There is a risk of an accident.
Always carefully observe the traffic conditions
and switch off the high-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
impaired if:
Rpoor visibility, e.g. due to fog, heavy rain or
snow
Rdirt on the sensors or the sensors are
obscured
Switching Adaptive Highbeam Assist
on/off
XTo switch on: turn the light switch to Ã.
XPress the combination switch beyond the
pressure point in the direction of arrow :.
The _ indicator lamp in the multifunction
display lights up when it is dark and the light
sensor activates the low-beam headlamps.
If you are driving at speeds above approx-
imately 16 mph (25 km/h):
118Exterior lighting
Lights and windshield wipers

The headlamp range is set automatically
depending on the distance between the vehi-
cle and other road users.
If you are driving at speeds above approx-
imately 19 mph (30 km/h)and no other road
users have been detected:
The high-beam headlamps are switched on
automatically. The Kindicator lamp in the
instrument cluster also lights up.
If you are driving at speeds below approx-
imately 16 mph (25 km/h) or other road users
have been detected or the roads are ade-
quately lit:
The high-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.
XTo switch off: move the combination switch
back to its normal position or move the light
switch to another position.
The _ indicator lamp in the multifunction
display goes out.
Headlamps fogged 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
Overhead control panel
:
p Switches the left-hand front reading
lamp on/off
;c Switches the front interior lighting on
=vSwitches the rear interior lighting on/
off
?| Switches the front interior lighting/
automatic interior lighting control off
Ap Switches the right-hand front reading
lamp on/off
BSwitches the automatic interior lighting con-
trol on
Rear overhead control panel (second row of seats)
:
To switch the reading lamp on/off
Rear overhead control panel (third row of seats)
:
Reading lamp
Interior lighting control
General notes
The interior light functions are automatically
switched off after some time to prevent the
vehicle's battery from discharging, unless the
SmartKey is in position 2in the ignition lock.
The color and brightness of the ambient lighting
are set using the multimedia system (see Digital
Operator's Manual).
Interior lighting119
Lights and windshield wipers
Z

Halogen headlamps
:
Low-beam headlamp: H7 55 W
;High-beam headlamp: H7 55 W
=Turn signal: W 5 W BV
Removing and installing the cover in
the front wheel housing
You must remove the cover from the front wheel
housing before you can change the front bulbs.
XTo remove:switch off the lights.
XTurn the front wheel inwards.
XRemove securing pin ;using a suitable tool.
XSlide cover :up and remove it.
XTo install: insert cover :again and slide it
down until it engages.
XInsert securing pin ;.
Low-beam headlamps
XRemove the cover in the front wheel housing
(Ypage 121).
XTurn housing cover:counter-clockwise and
remove it.
XTurn bulb holder ;counter-clockwise and
pull out.
XPull the bulb out of bulb holder ;.
XInsert new bulb into bulb holder ;.
XInsert bulb holder;and turn it clockwise.
XPress on housing cover :and turn it to the
right.
XReplace the cover in the front wheel housing
(Ypage 121).
High-beam headlamps
XSwitch off the lights.
XOpen the hood.
XTurn housing cover :counter-clockwise and
remove it.
XPull lever =upwards and remove bulb
holder ;.
XRemove the bulb from bulb holder ;.
XInsert the new bulb into bulb holder ;.
Replacing bulbs (vehicles with halogen headlamps)121
Lights and windshield wipers
Z

iSet the time using the multimedia system;
see the Digital Operator's Manual.
Possible displays in the multifunction dis-
play:
RZ Gearshift recommendation, when shifting
manually (Ypage 152)
Rj Parking Pilot (Ypage 195)
RCRUISECruise control (Ypage 174)
R_ Adaptive Highbeam Assist
(Ypage 118)
Rè ECO start/stop function (Ypage 144)
RëHOLD function (Ypage 187)
RaDistance Pilot DISTRONIC Steering Pilot
(Ypage 241)
RDSRDownhill Speed Regulation
(Ypage 218)
Menus and submenus
Menu overview
Press the =or; button on the steering
wheel to call up the menu bar and select a menu.
Operating the on-board computer (
Ypage 234).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
RTripmenu (Ypage 236)
RNavimenu (navigation instructions)
(Ypage 237)
RAudiomenu (Ypage 239)
RTelmenu (telephone) (Ypage 240)
RDriveAssistmenu (assistance)
(Ypage 241)
RServ.menu (Ypage 242)
RSett.menu (settings) (Ypage 243)
RON&OFFROADmenu (Ypage 245)
RAMGmenu (Mercedes-AMG vehicles)
(Ypage 245)
Trip menu
Standard display
XPress and hold the %button on the steer-
ing wheel until the Tripmenu with trip odom-
eter :and odometer ;appears.
Trip computer "From Start" or "From
Reset"
:Distance
;Driving time
=Average speed
?Average fuel consumption
XPress the =or; button on the steering
wheel to select the Tripmenu.
XPress the9or: button to select
From startor From reset.
The values in the From
Startsubmenu are cal-
culated from the start of a journey, while the
values in the From Reset
submenu are calcu-
lated from the last time the submenu was reset
(
Ypage 237).
The From Start
trip computer is automatically
reset if:
Rthe ignition has been switched off for more
than four hours.
R999 hours have been exceeded.
R9,999 miles have been exceeded.
The From reset
trip computer is automatically
reset if the value exceeds 9,999 hours or
99,999 miles.
236Menus and submenus
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
b
Switch Off Lights
You leaveth evehicl eand th elights are switched on . Awarning tone
also sounds.
XTurn th eligh tswitch to th eà position .
b
Switch On Headlamps
You are drivin gwit hlow-beam headlamp sswitched off .
XTurn theligh tswitch to th eL orà position .
Adaptive HighbeamAssist CurrentlyUnavailable SeeOperator' sManual
Adaptive Highbea mAssis tis deactivated and temporarily inoperative.
Possibl ecauses are:
RThe windshield in th ecamera' sfield of vision is dirty.
RVisibilit yis impaire ddue to heav yrain ,snow or fog .
XClean thewindshield.
If th esystem detects that th ecamera is full yoperational, th eAdap‐
tiv eHighbeam Assist Now Availablemessage is displayed.
Adaptive Highbea mAssis tis operational again .
Adaptive HighbeamAssist InoperativeAdaptive HighbeamAssis tis faulty.
XVisit aqualified specialist workshop .
Engine
Display messagesPossible causes/consequences and MSolutions
+
CheckCoolantLevelSee Operator' sMan ‐ual
The coolan tlevel is to olow.
!Avoid making lon gjourneys wit hto olittl ecoolan tin th eengin e
coolin gsystem. The engin ewill otherwise be damaged.
XAd dcoolant, observing th ewarning note sbefore doin gso
(Ypage 328).
If you have to ad dcoolant frequently:
XContac t aqualified specialist workshop and hav eth eengin ecoolin g
system checked.
?The fan motor is malfunctioning .
XAt coolanttemperatures belo w24 8‡( 120 †), drive to the nearest
qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in moun-
tainous terrain and stop-and-go traffic.
Display messages261
On-board computer and displays
Z