2018 MERCEDES-BENZ GLS radiator

Indicators
see Turn signals
Insect protection on the radiator .... 326
Instrument cluster
Overview .......................................... 37
Warning and indicator lamps .......... .3 7
Instrument cluster lighting .............. 233
Intelligent Light System
Activating/deactivating ................ .2 43
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) ..................... .3 46
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 Index 13

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 code
Mercedes-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 Index 17

Rear window wiper ........................ 12 3
Replacin g th e wiper 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 function
Switching on/off ........................... 133 Index 25

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. R
Establish how deep the water is and the char-
acteristics of the body of water before ford-
ing. R
Select the highest possible vehicle level. R
Shift to a lower gear using the left-hand steer-
ing wheel paddle shifter. R
Avoid high engine speeds. R
Enter and exit the water at a flat place and at
a steady walking pace. R
Drive slowly and at an even speed through the
water. R
Ensure that a bow wave does not form as you
drive. R
Do 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. R
Clean any mud from the tire tread after ford-
ing. R
Apply the brakes to dry them after fording.
Always observe the fording depth values
( Y
page 393).
Winter driving
G WARNING
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.
G DANGER
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: X
Shift the transmission to position \\ .X
Try to bring the vehicle under control using
corrective steering.
When driving in snow with or without snow
chains, select driving program Slippery
( Y
page 147).
i Vehicles 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 ( Y
page 356).Driving tips 169
Driving and parking Z

Drivin g Assistance Plu s package
General notes The Driving Assistanc e Plus package consist s of
Distanc e Pilo t DISTRONIC ( Y
page 176), Active
Blin d Spot Assis t ( Y
page 213) and Active Lan e
Keepin g Assis t ( Y
page 215).
Active Blind Spot Assist General notes Active Blin d Spot Assis t monitors th e areas on
either sid e of th e vehicle that are no t directl y
visible to th e driver wit h tw o lateral, rear-facin g
radar sensors. A warnin g lamp lights up in th e
exterio r mirrors and draws your attention to
vehicles detecte d in th e monitored area. If you
then switch on th e correspondin g turn signal to
chang e lanes, you will also receiv e a visual and
audible collision warning. If a ris k of latera l col-
lision is detected, corrective braking may hel p
you avoid a collision . Before a course-correcting
brake application , Active Blin d Spot Assis t eval-
uates th e spac e in th e direction of trave l and at
th e sides of th e vehicle. Fo r this, Active Blin d
Spot Assis t uses th e forward-facin g radar sen -
sors.
Active Blin d Spot Assis t supports you from a
speed of approximately 20 mph (30 km/h).
Important safet y notesActive Blin d Spot Assis t is only an aid and is no t
a substitute fo r attentive driving.
G WARNING
Active Blin d Spot Assis t doe s no t react to :R
vehicles overtaken to o closely on th e side,
placin g them in th e blin d spo t are aR
vehicles whic h approac h wit h a larg e speed
differential and overtak e your vehicle
As a result , Active Blin d Spot Assis t may nei-
ther giv e warnings no r interven e in suc h sit -
uations. There is a ris k of an accident.
Always observ e th e traffic condition s care-
fully, and maintain a saf e latera l distance.
i US A only: Thi s devic e has bee n approved by
th e FCC as a "Vehicular Radar System". The
radar sensor is intended fo r use in an auto-
motive radar syste m only. Removal, tamper-
ing, or altering of th e devic e will void any war- ranties, and is no t permitte d by th e FCC. Do
no t tampe r with, alter, or use in any non-
approved way.
An y unauthorized modification to this devic e
could void th e user's authorit y to operat e th e
equipment.
i Canada only: Thi s devic e complies wit h
RSS-210 of Industry Canada. Operation is
subjec t to th e followin g tw o conditions:
1. Thi s devic e may no t cause interference,
and
2. Thi s devic e mus t accept any interf erenc e
re c
eived, includin g interferenc e that may
cause undesired operation of th e device.
Removal, tampering, or altering of th e devic e
will void any warranties , and is no t permitted.
Do no t tampe r with, alter, or use in any non-
approved way.
An y unauthorized modification to this devic e
could void th e user's authorit y to operat e th e
equipment.
Rada r sensor sThe Active Blind Spot Assis t radar sensor s are
integrated into th e fron t and rea r bumper s and
behin d a cover in th e radiator trim. Mak e sur e
that th e bumper s and th e cover in th e radiator
grill are free of dirt, ic e or slush. The sensor s
mus t no t be covered, fo r example by cycle racks
or overhangin g loads. Followin g an acciden t or
in th e event of damage to th e bumpers, hav e th e
function of th e radar sensor s checke d at a quali-
fie d specialis t workshop . Active Blin d Spot
Assis t may otherwise no longer wor k properly.
Monitoring area
G WARNING
Active Blind Spot Assis t doe s no t detec t all
traffic situation s and road users. There is a
ris k of an accident.
Always mak e sur e that there is sufficien t dis -
tanc e on th e sid e fo r other traffic or obstacles.Driving systems 21 3
Driving an d parking Z

Engine compartment
Hood
Important safety notes
G WARNING
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.
G WARNING
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.
G WARNING
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.
G WARNING
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: R
switch off the ignition R
never reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area R
remove jewelry and watches R
keep items of clothing and hair, for exam-
ple, away from moving parts
G WARNING
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
G WARNING
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.
G WARNING
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 compartment 325
Maintenance and care Z

X
Make sure that the windshield wipers are
turned off. X
Pull release lever C on the hood.
The hood is released.
X
Reach into the gap, pull hood catch handle D
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 X
Lower the hood and let it fall from a height of
approximately 8 in (20 cm). X
Check 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
G WARNING
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.
G WARNING
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.
G WARNING
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.326
Engine compartment
Maintenance and care

Further information on engine oil ( Y
page 389).
Additional service products
Important safety notes
G WARNING
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.
G WARNING
The cooling system is pressurized, particularly
when the motor is warm. If you open the cap,
you could be scalded if hot coolant sprays out.
There is a risk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Slowly
open the cap to relieve pressure.
The coolant level may only be checked and cool-
ant refilled when the engine and engine cooling
system have cooled down.
G WARNING
Windshield washer concentrate could ignite if
it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck. Checking coolant level X
Park the vehicle on a level surface.
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down. X
Turn the SmartKey to position H in the igni-
tion lock ( Y
page 140).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice ( Y
page 142).X
Check the coolant temperature gauge in the
multifunction display.
The coolant temperature must be below
158 ‡ (70 †). X
Turn the SmartKey to position in the ignition
lock