2018 MERCEDES-BENZ GLS brake light

1, 2, 3 ...4ETS (Electronic Traction System)
see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 218
12 V socket
see Sockets
115 V socket ...................................... 313
360° camera
Cleaning ........................................ .3 34
Display in the multimedia system .. 205
Function/notes ............................ .2 03
AABS (Anti-lock Braking System)
Display message ............................ 249
Function/notes ................................ 66
Important safety notes .................... 66
Warning lamp ................................. 282
Accident
Automatic measures after an acci-
dent ................................................. 59
Activating media mode
General notes ................................ 298
Activating/deactivating cooling
with air dehumidification ................. 131
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 242
Display message ............................ 269
Function/information .................... 213
Trailer towing ................................. 215
Active Brake Assist
Activating or deactivating .............. 242
Display message ............................ 254
Function/notes ................................ 67
Active Brake Assist with cross-
traffic function
Activating or deactivating .............. 242
Display message ............................ 255
Function/notes ................................ 72
Important safety notes .................... 73
Warning lamp ................................. 290
Active Curve System
Display message ............................ 266 Function/notes ............................. 189
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 242
Display message ............................ 268
Function/information .................... 215
Trailer towing ................................. 218
Active light function ......................... 117
ADAPTIVE BRAKE ................................. 72
Adaptive Highbeam Assist
Display message ............................ 261
Function/notes ............................. 118
Switching on/off ........................... 118
Additives (engine oil) ........................ 390
Address book
see also Digital Operator's Man-
ual .................................................. 292
Adjusting the volume
Multimedia system ........................ 293
ADS (Adaptive Damping System)
Function/notes ............................. 188
Air bags
Deployment ..................................... 56
Display message ............................ 258
Front air bag (driver, front
p assenger) ....................................... 50
Important safety notes .................... 49
Introduction ..................................... 49
Knee bag .......................................... 50
Occupant Classification System
(OCS) ............................................... 51
PASSENGER AIR BAG indicator
lamps ............................................... 45
Side impact air bag .......................... 51
Window curtain air bag .................... 51
Air filter (display message) .............. 264
AIR FLOW ........................................... 132
Air vents
Glove box ....................................... 136
Important safety notes .................. 136
Rear ............................................... 137
Setting ........................................... 136
Setting the center air vents ........... 136
Setting the side air vents ............... 136
Air-conditioning system
see Climate control4
Index

Bag hook ............................................ 305
Ball coupling
Installing ........................................ 226
Removing ....................................... 229
BAS (Brake Assist System) ................. 67
Battery (SmartKey)
Checking .......................................... 80
Important safety notes .................... 80
Replacing ......................................... 80
Battery (vehicle)
Charging ........................................ 346
Display message ............................ 262
Important safety notes .................. 344
Jump starting ................................. 346
Overview ........................................ 344
Belt
see Seat belts
Belt warning ......................................... 48
Bicycle rack ....................................... 230
Blind Spot Assist
Activating/deactivating ................. 242
Display message ............................ 269
Notes/function .............................. 209
Trailer towing ................................. 211
see Active Blind Spot Assist
BlueTEC
Adding DEF .................................... 158
BlueTEC (DEF) .................................... 389
Bluetooth ®
Searching for a mobile phone ........ 296
Searching for a mobile phone
(device manager) ........................... 297
see also Digital Operator's Man-
ual .................................................. 292
Telephony ...................................... 296
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 254
Notes ............................................. 390
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 260
Brake linings
Display message ............................ 254 Brakes
ABS .................................................. 66
BAS .................................................. 67
Brake fluid (notes) ......................... 390
Braking assistance appropriate to
the situation ..................................... 69
Display message ............................ 249
High-performance brake system .... 168
Hill start assist ............................... 143
Important safety notes .................. 166
Maintenance .................................. 167
Parking brake ................................ 162
Riding tips ...................................... 166
Warning lamp ................................. 281
Braking assistance appropriate to
the situation
Function/notes ................................ 69
Breakdo wn
W
here will I find...? ........................ 338
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 37
Bulbs
see Replacing bulbs
C
California
Important notice for retail cus-
tomers and lessees .......................... 28
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 334
Car wash ........................................ 330
Carpets .......................................... 337
Display ........................................... 335
Exhaust pipe .................................. 334
Exterior lights ................................ 333
Gear or selector lever .................... 336
Interior ........................................... 335
Matte finish ................................... 332
Notes ............................................. 330
Paint .............................................. 332
Plastic trim .................................... 3356
Index

Lights ............................................ .2 60
Safety systems .............................. 249
SmartKey ....................................... 278
Tires ............................................... 273
Vehicle .......................................... .2 75
Distance Pilot DISTRONIC
Activating ....................................... 178
Activation conditions ..................... 178
Cruise control lever ....................... 178
Display Message ............................ 270
Displays in the instrument cluster .. 181
Driving tips ................................... .1 82
Function/notes ............................ .1 76
Important safety notes .................. 176
Setting the specified minimum
distance ......................................... 180
Stopping ........................................ 179
Switching off .................................. 180
Warning lamp ................................. 290
Distance recorder
see Odometer
see Trip odometer
Distance warning (warning lamp) .... 290
Distance warning function
Function/notes ................................ 68
Warning lamp ................................. 290
Doors
Automatic locking (on-board com-
puter) ............................................. 244
Automatic locking (switch) .............. .8 4
Central locking/unlocking
(SmartKey) ...................................... .7 7
Control panel .................................. .4 3
Display message ............................ 277
Emergency locking ........................... 84
Emergency unlocking ....................... 84
Important safety notes .................... 83
Opening (from inside) ...................... 83
Overview .......................................... 83
Power closing .................................. 84
Drinking and driving ......................... 165
Drive program
Automatic transmission ................. 151
Off-Road program (vehicles with-
out Off-Road Engineering pack-
a g e) ............................................... 219
Off-road programs (vehicles with
Off-Road Engineering package) ...... 220 SETUP (on-board computer,
Mercedes-AMG vehicles) ............... 246
Drive programs
Display (DIRECT SELECT lever) ...... 149
Driver's door
see Doors
Driving
Important safety notes .................. 139
Driving abroad
Mercedes-Benz Service ................. 330
Driving Assistance PLUS package ... 213
Driving in mountainous terrain
Approach/departure angle ............ 173
Driving lamps
see Daytime running lamps
Driving off-road
see Off-road driving
Driving safety system
Active Brake Assist .......................... 67
Braking assistance appropriate to
the situation ..................................... 69
Driving safety systems
ABS (Anti-lock Braking System) ....... 66
Active Brake Assist with cross-
traffic function ................................. 72
ADAPTIVE BRAKE ............................. 72
BAS (Brake Assist System) .............. 67
Distance warning function ............... 68
EBD (electronic brake force distri-
bution) ............................................. 72
ESP ®
(Electronic Stability Pro-
gram) ............................................... 69
Important safety information ........... 66
Overview .......................................... 66
STEER CONTROL ............................. 75
Driving system
AIRMATIC package ........................ 188
Distance Pilot DISTRONIC ............. 176
Distance Pilot DISTRONIC with
Steering Pilot ................................. 182
Parking assist PARKTRONIC .......... 192
Parking Pilot .................................. 195
Driving systems
360°camera .................................. 203
Active Blind Spot Assist ................. 213
Active Curve System ...................... 189
Active Lane Keeping Assist ............ 215
ADS ............................................... 188 Index 9

Off-road programs (vehicles with
Off-Road Engineering package)
Function/notes ............................. 220
Off-road drive program .................. 220
Offroad Plus drive program ............ 221
Off-road programs (vehicles with
the Off-Road Engineering package)
Displays in the COMAND display ... 223
Off-road system
4MATIC .......................................... 218
DSR ............................................... 218
LOW RANGE off-road gear ............. 221
Off-road 4ETS .................................. 70
Off-road ABS .................................... 67
Off-road ESP ®
.................................. 71
Off-road programs (vehicles with
Off-Road Engineering package) ...... 220
Oil
see Engine oil
On and Offroad menu (on-board
computer) .......................................... 245
On-board computer
AMG menu ..................................... 245
Assistance menu ........................... 241
Audio menu ................................... 239
Convenience submenu .................. 244
Display messages .......................... 248
Displaying a service message ........ 329
Distance Pilot DISTRONIC ............. 181
Factory settings submenu ............. 245
Important safety notes .................. 233
Instrument cluster submenu .......... 243
Lighting submenu .......................... 243
Menu overview .............................. 236
Message memory .......................... 248
Navigation menu ............................ 237
On and Offroad menu .................... 245
Operation ....................................... 234
RACETIMER ................................... 246
Service menu ................................. 242
Settings menu ............................... 243
Standard display ............................ 236
Telephone menu ............................ 240
Trip menu ...................................... 236
Vehicle submenu ........................... 244
Video DVD operation ..................... 239
Operating safety
Declaration of conformity ................ 30 Important safety notes .................... 30
Operating system
see On-board computer
Operation
Digital Operator's Manual ................ 26
Operator's Manual
Overview .......................................... 28
Vehicle equipment ........................... 28
Outside temperature display ........... 233
O verhe
ad control panel ...................... 42
Override feature
Rear side windows ........................... 65
P Paddle shifters
see Steering wheel paddle shifters
Paint code number ............................ 385
Paintwork (cleaning instructions) ... 332
Panic alarm .......................................... 44
Panorama roof with power tilt/
sliding panel
Important safety notes .................... 92
Opening/closing the roller sun-
blind ................................................. 95
Operating ......................................... 94
Operating the roller sunblinds for
the sliding sunroof ........................... 94
Problem (malfunction) ..................... 96
Reversing feature ............................. 93
Parking
Important safety notes .................. 161
Parking brake ................................ 162
Position of exterior mirror, front-
passenger side ............................... 112
Rear view camera .......................... 199
see PARKTRONIC
Parking aid
Parking Pilot .................................. 195
see 360° camera
see Exterior mirrors
see PARKTRONIC
Parking Assist PARKTRONIC
Deactivating/activating ................. 194
Driving system ............................... 192
Function/notes ............................. 192
Important safety notes .................. 192
Problems (malfunctions) ................ 19516
Index

3 Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Reporting safety defects USA only:
The following text is reproduced as required of
all manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
National Traffic and Motor Vehicle Safety Act of
1966.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz
USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go to http://
www.safercar.gov ; or write to: Administrator,
NHTSA, 400 Seventh Street, SW., Washington,
DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
! Observe the notes in this Operator's Manual
regarding the correct operation of your vehi-
cle and possible damage to the vehicle. Dam-
age to the vehicle which is caused by violation
of these notes is not covered by the
Mercedes-Benz implied warranty or the new
or used-vehicle warranty. QR codes for the rescue card The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident, rescue services can use
the QR code to quickly find the appropriate res-
cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in a compact form, e.g. the
routing of the electric cables.
You can find more information at
www.mercedes-benz.de/qr-code .
Data stored in the vehicle
Information from electronic control
units There are electronic control units installed in
your vehicle. Some of these are necessary for
your vehicle to operate safely, while some offer
support during driving (driver assistance sys-
tems). In addition, your vehicle offers comfort
and entertainment functions that are also made
possible by electronic control units.
Electronic control units contain data storage
systems that can temporarily or permanently
save technical information concerning the vehi-
cle's condition, component stress and mainte-
nance requirements as well as technical events
and malfunctions.
This information generally documents the con-
dition of a component, a module, a system or the
surroundings, for example: R
operating states of system components (e.g.
fill levels, battery status, tire pressure) R
status messages concerning the vehicle or its
individual components (e.g. wheel rpm/
speed, deceleration, lateral acceleration, indi-
cation of whether seat belts are fastened) R
malfunctions and defects in important system
components (e.g. lights, brakes) R
information about events leading to vehicle
damage R
system responses in special driving situations
(e.g. air bag deployment, intervention of sta-
bility control systems) R
ambient conditions (e.g. temperature, rain
sensor)
In addition to performing the actual control unit
function, these data are used by manufacturers32
Data stored in the vehicle
Introduction

If the seat belt pre-tensioning is not reduced: X
Move the seat backrest or seat back slightly
when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. Informa-
tion about the convenience function can be
found under "Belt adjustment" ( Y
page 48).
PRE-SAFE ®
PLUS (anticipatory occu-
pant protection system PLUS)
Introduction PRE-SAFE ®
PLUS is only available in vehicles
with the Driving Assistance PLUS package.
Using the radar sensor system, PRE-SAFE ®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE ®
PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes The intervention of PRE-SAFE ®
PLUS cannot
prevent an imminent collision.
The driver is not warned about the intervention
of PRE-SAFE ®
PLUS.
PRE-SAFE ®
PLUS does not intervene if the vehi-
cle is backing up.
When driving, or when parking or exiting a park-
ing space with assistance from Parking Pilot,
PRE-SAFE ®
PLUS will not apply the brakes.
Function PRE-SAFE ®
PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision. PRE-SAFE ®
PLUS takes the following measures
depending on the hazardous situation detected: R
if the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned. R
if the radar sensor system detects that a rear-
end collision is imminent: -
the brake pressure is increased if the driver
applies the brakes when the vehicle is sta-
tionary. -
the seat belts are pre-tensioned.
The PRE-SAFE ®
PLUS braking application is can-
celed: R
if the accelerator pedal is depressed when a
gear is engaged R
if the risk of a collision passes or is no longer
detected R
if Distance Pilot DISTRONIC indicates an
intention to pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
Automatic measures after an acci-
dent Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact: R
the hazard warning lamps are activated R
the emergency lighting is activated R
the vehicle doors are unlocked R
the front side windows are lowered R
vehicles with a memory function: the electri-
cally adjustable steering wheel is raised when
the driver's door is opened R
the engine is switched off and the fuel supply
is cut off R
vehicles with mbrace: automatic emergency
call
Children in the vehicle
Important safety notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you installChildren in the vehicle 59
Safety Z

a child restraint system on a rear seat. Children
are generally better protected there.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle: R
always secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child R
be sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions R
be sure to observe the instructions and safety
notes on the "Occupant classification system
(OCS)" ( Y
page 51)
G WARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example: R
release the parking brake. R
shift the automatic transmission out of the
parking position P .R
start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
G WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sitting
properly. Particular attention must be paid to
children.
Observe the safety notes on the seat belt
( Y
page 46) and the notes on correct use of seat
belts ( Y
page 47).
A booster seat may be necessary to achieve
proper seat belt positioning for children over
40 lbs (18 kg) until they reach a height where a
three-point seat belt can be properly fastened
without a booster seat.
Special seatbelt retractor
G WARNING
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt retrac-
tor is disabled and the inertia real draws in a
portion of the seat belt. The seat belt cannot
be immediately refastened. There is an
increased risk of injury, possibly even fatal.
Stop the vehicle immediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat belt retractor and secure the
child restraint system properly.
All seat belts in the vehicle, except the driver's
seat belt, are equipped with a special seat belt
retractor. When activated, the special seat belt
retractor ensures that the seat belt cannot
slacken once the child seat is secured.
Installing a child restraint system: X
Make sure you observe the child restraint
system manufacturer's installation instruc-
tions. X
Pull the seat belt smoothly from the belt out-
let. X
Engage seat belt tongue in belt buckle.60
Children in the vehicle
Safety

Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.
Driving safety systems
Overview of driving safety systems In this section, you will find information about
the following driving safety systems: R
ABS ( A nti-lock B raking S ystem)
( Y
page 66)R
BAS ( B rake A ssist S ystem) ( Y
page 67)R
Active Brake Assist ( Y
page 67)R
ESP ®
( E lectronic S tability P rogram)
( Y
page 70)R
EBD ( E lectronic B rake force D istribution)
( Y
page 72)R
ADAPTIVE BRAKE ( Y
page 72)R
Active Brake Assist with cross-traffic function
( Y
page 72)R
Steering Pilot STEER CONTROL
( Y
page 75)
Important safety notes If you fail to adapt your driving style or if you are
inattentive, the driving safety systems can nei-
ther reduce the risk of an accident nor override
the laws of physics. Driving safety systems are
merely aids designed to assist driving. You are
responsible for maintaining the distance to the
vehicle in front, for vehicle speed, for braking in
good time, and for staying in lane. Always adapt
your driving style to suit the prevailing road and
weather conditions and maintain a safe distance
from the vehicle in front. Drive carefully.
The driving safety systems described only work
as effectively as possible when there is ade-
quate contact between the tires and the road
surface. Pay particular attention to the informa-
tion regarding tires, recommended minimum
tire tread depths etc. in the "Wheels and tires"
section ( Y
page 354).
In wintry driving conditions, always use winter
tires (M+S tires) and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible. ABS (Anti-lock Braking System)
General information ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking.
The % ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
i Observe the "Important safety notes" sec-
tion ( Y
page 66).
G WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp ( Y
page 282) and dis-
play messages which may be shown in the
instrument cluster ( Y
page 249).
Braking X
If ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over. X
To make a full brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a
reminder to take extra care while driving.66
Driving safety systems
Safety