2018 MERCEDES-BENZ GLS SUV radiator

Indicatorssee Turn signals
Insect protection on the radiator .... 326
Instrument cluster
Overview .......................................... 37
Warning and indicator lamps .......... .37
Instrument cluster lighting .............. 233
Intelligent Light System
Activating/deactivating ................ .243
Display message ............................ 260
Overview ........................................ 117
Interior lighting
Automatic control .......................... 120
Emergency lighting ........................ 120
General notes ................................ 119
Manual control ............................... 119
Overview ........................................ 119
Reading lamp ................................. 119
iPod
®
see also Digital Operator's Man-
ual ..................................................2 92
J
Jack
Storage location ............................ 339
Using ............................................. 376
Jump starting (engine) ......................346
K
Key positions
KEYLESS-GO .................................. 140
SmartKey ....................................... 140
KEYLESS-GO
Activating ......................................... 78
Convenience closing feature ............ 91
Deactivation ..................................... 78
Display message ............................ 278
Locking ............................................ 78
Removing the Start/Stop button ... 141
Start function ................................... 79
Start/Stop button .......................... 140
Starting the engine ........................ 142
Unlocking ......................................... 78
Kickdown
Driving tips ....................................1 51
Manual gearshifting ....................... 154 Knee bag
.............................................. 50
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 242
Display message ............................ 268
Function/information .................... 211
see Active Lane Keeping Assist
Lap time (RACETIMER) ...................... 246
LATCH-type (ISOFIX) child seat
anchors ................................................ 62
Level control
AIRMATIC ...................................... 190
Level control (display message) ...... 265
Level control (vehicle with the Off-
Road Engineering package)
Basic settings ................................ 184
Function/notes ............................. 184
Important safety notes .................. 184
License plate lamp (display mes-
sage) ................................................... 260
Light function, active
Display message ............................ 260
Light sensor (display message) ....... 260
Light switch
Operation ....................................... 115
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 243
Active light function ....................... 117
Adaptive Highbeam Assist ............. 118
Automatic headlamp mode ............ 115
Fog lamps (extended) .................... 118
Hazard warning lamps ................... 117
High beam flasher .......................... 116
High-beam headlamps ................... 116
Highway mode ............................... 118
Light switch ................................... 115
Low-beam headlamps .................... 116
Off-road lights ................................ 118
Parking lamps ................................ 116
Rear fog lamp ................................ 116
Standing lamps .............................. 116
Index13

Sensor range ................................. 193
Towing a trailer .............................. 192
Warning display ............................. 194
Parking assistance
see Driving system
Parking brake
Applying automatically ................... 163
Applying or releasing manually ...... 163
Display message ............................ 251
Electric parking brake .................... 162
Emergency braking ........................ 164
General notes ................................ 162
Releasing automatically ................. 163
Warning lamp ................................. 287
Parking lamps
Switching on/off ........................... 116
Parking Pilot
Canceling ....................................... 199
Detecting parking spaces .............. 196
Display Message ............................ 269
Exiting a parking space .................. 198
Function/notes ............................. 195
Important safety notes .................. 195
Parking .......................................... 197
PASSENGER AIR BAG
Display message ............................ 258
Indicator lamps ................................ 45
Problem (malfunction) ................... 258
Pets in the vehicle ............................... 65
Phone book
see also Digital Operator's Man-
ual .................................................. 292
Plastic trim (cleaning instruc-
tions) .................................................. 335
Power locks ......................................... 84
Power washers .................................. 331
Power windows
see Side windows
PRE-SAFE
®(anticipatory occupant
protection)
Display message ............................ 255
Operation ......................................... 58
PRE-SAFE
®PLUS (anticipatory
occupant protection PLUS)
Display message ............................ 255
Operation ......................................... 59 Protection against theft
ATA (Anti-Theft Alarm system) ......... 75
Immobilizer ...................................... 75
Protection of the environment
General notes .................................. 27
Pulling away
Automatic transmission ................. 143
General notes ................................ 143
Hill start assist ............................... 143
Trailer ............................................ 143
Q
QR codeMercedes-Benz Guide App ................. 1
Rescue card ..................................... 32
Qualified specialist workshop ........... 31
R
RACE TIMER (on-board computer,
Mercedes-AMG vehicles).................. 246
Radiator cover ................................... 326
Radio
Selecting a station ......................... 239
Radio mode
see also Digital Operator's Man-
ual .................................................. 292
Radio-controlled devices (instal-
ling) ..................................................... 324
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 30
Reading lamp ..................................... 119
Rear bench seat
Folding forwards/back .................. 304
Rear compartment
Exit/entry position (3rd row of
seats) ............................................. 103
Setting the air vents ...................... 137
Setting the temperature ................ 132
Rear fog lamp
Display message ............................ 260
Switching on/off ........................... 116
Rear Seat Entertainment System
AUX jacks ...................................... 299
AUX jacks CD/DVD drive .............. 299
Index17

Rear window wiper ........................ 123
Replacin gth ewiper blade s ............ 123
Switching on/off ........................... 122
Winter driving
Slippery road surfaces ................... 169
Winter operation
Overview ........................................ 356
Radiator cover ............................... 326
Winter tires
M+S tires ....................................... 356
Wiper blades
Cleaning ......................................... 333
Replacing ....................................... 123
Replacing (rear window) ................ 124
Replacing (windshield) ................... 123
Wooden trim (cleaning instruc-
tions) .................................................. 336
Workshop
see Qualified specialist workshop
Z
ZONE functionSwitching on/off ........................... 133
Index25

Off-road fording
!Under no circumstances should you accel-
erate before entering the water. The bow
wave could cause water to enter and damage
the engine and other assemblies.
!Do not open any of the vehicle's doors while
fording. Otherwise, water could get into the
vehicle interior and damage the vehicle's
electronics and interior equipment.
REstablish how deep the water is and the char-
acteristics of the body of water before ford-
ing.
RSelect the highest possible vehicle level.
RShift to a lower gear using the left-hand steer-
ing wheel paddle shifter.
RAvoid high engine speeds.
REnter and exit the water at a flat place and at
a steady walking pace.
RDrive slowly and at an even speed through the
water.
REnsure that a bow wave does not form as you
drive.
RDo not stop and do not switch off the engine.
Water offers a high degree of resistance, and
the ground is slippery and in some cases
unstable. Therefore, it is difficult and danger-
ous to pull away in the water.
RClean any mud from the tire tread after ford-
ing.
RApply the brakes to dry them after fording.
Always observe the fording depth values
(
Ypage 393).
Winter driving
GWARNING
If you shift down on a slippery road surface in an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
GDANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases
such as carbon monoxide (CO) may enter the vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open a
window on the side of the vehicle that is not
facing into the wind.
!When scraping ice off the rear window, take
care not to damage the rear-window seal or
trim.
Have your vehicle winter-proofed at a qualified
specialist workshop at the onset of winter.
Drive particularly carefully on slippery road sur-
faces. Avoid sudden acceleration, steering and
braking maneuvers. Do not use cruise control or
Distance Pilot DISTRONIC.
If the vehicle threatens to skid or cannot be
stopped when moving at low speed:
XShift the transmission to position i.
XTry to bring the vehicle under control using
corrective steering.
When driving in snow with or without snow
chains, select driving program Slippery
(
Ypage 147).
iVehicles with a diesel engine: do not
cover the radiator, e.g. with a protective
cover. The measuring function of the on-
board diagnosis system may otherwise pro-
vide inaccurate values. Some of these values
are required by law and must therefore always be accurate.
The outside temperature indicator is not
designed to serve as an ice-warning device and
is therefore unsuitable for that purpose.
Changes in the outside temperature are dis-
played after a short delay.
Indicated temperatures just above the freezing
point do not guarantee that the road surface is
free of ice. The road may still be icy, especially in
wooded areas or on bridges. You should pay
special attention to road conditions when tem-
peratures are around the freezing point.
For more information on driving with snow
chains, see (
Ypage 356).
Driving tips169
Driving and parking
Z

DrivingAssistance Plu spackage
General notes
The Driving Assistanc ePlus package consist sof
Distanc ePilo tDISTRONIC (Ypage 176), Active
Blin dSpot Assis t (Ypage 213) and Active Lan e
Keepin gAssis t (Ypage 215).
Active Blind Spot Assist
General notes
Active Blin dSpot Assis tmonitors th eareas on
either sid eof th evehicle that are no tdirectl y
visible to th edriver wit htw olateral, rear-facin g
radar sensors. Awarnin glamp lights up in th e
exterio rmirrors and draws your attention to
vehicles detecte din th emonitored area. If you
then switch on th ecorrespondin gturn signal to
chang elanes, you will also receiv e avisual and
audible collision warning. If aris kof latera lcol-
lision is detected, corrective braking may hel p
you avoid acollision .Before acourse-correcting
brake application ,Active Blin dSpot Assis teval-
uates th espac ein th edirection of trave land at
th esides of th evehicle. Fo rthis, Active Blin d
Spot Assis tuses th eforward-facin gradar sen -
sors.
Active Blin dSpot Assis tsupports you from a
speed of approximately 20 mph (30 km/h).
Important safet ynotes
Active Blin dSpot Assis tis only an aid and is no t
a substitute fo rattentive driving.
GWARNING
Active Blin dSpot Assis tdoe sno treact to :
Rvehicles overtaken to oclosely on th eside,
placin gthem in th eblin dspo tare a
Rvehicles whic happroac hwit h a larg espeed
differential and overtak eyour vehicle
As aresult ,Active Blin dSpot Assis tmay nei-
ther giv ewarnings no rinterven ein suc hsit -
uations. There is aris kof an accident.
Always observ eth etraffic condition scare-
fully, and maintain asaf elatera ldistance.
iUS Aonly: Thi sdevic ehas bee napproved by
th eFCC as a"Vehicular Radar System". The
radar sensor is intended fo ruse in an auto-
motive radar syste monly. Removal, tamper-
ing, or altering of th edevic ewill void any war- ranties, and is no
tpermitte dby th eFCC. Do
no ttampe rwith, alter, or use in any non-
approved way.
An yunauthorized modification to this devic e
could void th euser's authorit yto operat eth e
equipment.
iCanada only: Thi sdevic ecomplies wit h
RSS-210 of Industry Canada. Operation is
subjec tto th efollowin gtw oconditions:
1. Thi sdevic emay no tcause interference,
and
2. Thi sdevic emus taccept any interf erenc
e
re

ceived, includin ginterferenc ethat may
cause undesired operation of th edevice.
Removal, tampering, or altering of th edevic e
will void any warranties ,and is no tpermitted.
Do no ttampe rwith, alter, or use in any non-
approved way.
An yunauthorized modification to this devic e
could void th euser's authorit yto operat eth e
equipment.
Rada rsensor s
The Active Blind Spot Assis tradar sensor sare
integrated into th efron tand rea rbumper sand
behin d acover in th eradiator trim. Mak esur e
that th ebumper sand th ecover in th eradiator
grill are free of dirt, ic eor slush. The sensor s
mus tno tbe covered, fo rexample by cycle racks
or overhangin gloads. Followin gan acciden tor
in th eevent of damage to th ebumpers, hav eth e
function of th eradar sensor schecke dat aquali-
fie dspecialis tworkshop .Active Blin dSpot
Assis tmay otherwise no longer wor kproperly.
Monitoring area
GWARNING
Active Blind Spot Assis tdoe sno tdetec tall
traffic situation sand road users. There is a
ris kof an accident.
Always mak esur ethat there is sufficien tdis -
tanc eon th esid efo rother traffic or obstacles.
Driving systems21 3
Driving an d parking
Z

Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
?NThe red coolant warning lamp comes on while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked or
the electric engine radiator fan may be defective.
The coolant is too hot and the engine is no longer being cooled sufficiently.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 161).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(Ypage 328).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
XDo not start the engine again until the coolant temperature is below 248 ‡
(120 †). Otherwise, the engine could be damaged.
XDrive to the nearest qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-and-go traffic.
?N The red coolant warning lamp comes on while the engine is running.
The coolant temperature has exceeded 248 ‡ (120 †). The airflow to the engine
radiator may be blocked or the coolant level may be too low.
GWARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some fluids which
may have leaked into the engine compartment to catch fire.
Steam from the overheated engine can also cause serious burns which can occur
just by opening the hood.
There is a risk of injury.
XObserve the additional display messages in the multifunction display.
XPull over and stop the vehicle safely and switch off the engine, paying attention
to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 161).
XLeave the vehicle and keep a safe distance from the vehicle until the engine has
cooled down.
XCheck the coolant level and add coolant, observing the warning notes
(Ypage 328).
XIf you have to add coolant frequently, have the engine cooling system checked.
XMake sure that the air supply to the engine radiator is not blocked, e.g. by snow,
slush or ice.
Warning and indicator lamps in the instrument cluster289
On-board computer and displays
Z

Engine compartment
Hood
Important safety notes
GWARNING
If the hood is unlatched, it may open up when the vehicle is in motion and block your view.
There is a risk of an accident.
Never unlatch the hood while driving. Before
every trip, ensure that the hood is locked.
GWARNING
When opening and closing the hood, it may
suddenly fall into the closed position. There is a risk of injury to persons within range of
movement of the hood.
Open and close the hood only when no one is
within its range of movement.
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
GWARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There is a risk of injury.
If you need to do any work inside the engine
compartment:
Rswitch off the ignition
Rnever reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area
Rremove jewelry and watches
Rkeep items of clothing and hair, for exam-
ple, away from moving parts
GWARNING
The ignition system and the fuel injection sys-
tem work under high voltage. If you touch
components which are under voltage, you
could get an electric shock. There is a risk of
injury.
Never touch components of the ignition sys-
tem or fuel injection system when the ignition
is switched on.
Electrically live components include ignition
coils, spark plug connectors and the test socket.
Opening the hood
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by
the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
!Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield wip-
ers or the hood.
Engine compartment325
Maintenance and care
Z

XMake sure that the windshield wipers are
turned off.
XPull release lever:on the hood.
The hood is released.
XReach into the gap, pull hood catch handle ;
up and lift the hood.
If you lift the hood by approximately 15 in
(40 cm), the hood is opened and held open
automatically by the gas-filled strut.
Closing the hood
XLower the hood and let it fall from a height of
approximately 8 in (20 cm).
XCheck that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Open it again and close it
with a little more force.
Radiator
Vehicles with a diesel engine: do not cover
the radiator. such as with a thermal mat or
insect protection cover. Otherwise, the values of the European on-board diagnostics may be
affected. Some of these readings are required
by law and must be accurate at all times.
Engine oil
Important safety notes
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
GWARNING
If engine oil comes into contact with hot com- ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Make sure that engine oil is not spilled next to
the filler neck. Let the engine cool down and
thoroughly clean the engine oil off the com-
ponents before starting the engine.
General notes
Depending on your driving style, the vehicle
consumes up to 0.9 US qt (0.8 liters) of oil per
600 miles (1,000 km). The oil consumption may
be higher than this when the vehicle is new or if
you frequently drive at high engine speeds.
Depending on the engine, the oil dipstick may be
in a different location.
326Engine compartment
Maintenance and care