2018 MERCEDES-BENZ GLS SUV battery

Features .............................................. 308
Maintenance and care......................325
Engine compartment ........................... 325
ASSYST PLUS ...................................... 329
Care ..................................................... 330
Breakdown assistance .....................338
Where will I find...? .............................. 338
Flat tire ................................................ 339
Battery (vehicle) .................................. 344
Jump-starting ....................................... 346
Towing and tow-starting ...................... 349
Fuses ................................................... 352
Wheels and tires ............................... 354
Important safety notes ........................ 354
Operation ............................................ 354
Winter operation .................................. 356
Tire pressure ....................................... 357
Loading the vehicle .............................. 364
All about wheels and tires ................... 367
Changing a wheel ................................ 374
Wheel and tire combinations ............... 379
Emergency spare wheel ....................... 380
Technical data ................................... 384
Information regarding technical data ... 384
Vehicle electronics .............................. 384
Identification plates ............................. 385
Service products and filling capaci-
ties ...................................................... 386
Vehicle data ......................................... 392
Vehicle data for off-road driving .......... 393
Trailer tow hitch ................................... 395
Contents3

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
Where will I find...? ........................ 338
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 37
Bulbs
see Replacing bulbs
C
CaliforniaImportant 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 .................................... 335
6Index

Opening/closing .............................. 93
Problem (malfunction) ..................... 96
Resetting ......................................... 94
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 80
Changing the programming .............7 9
Checking the battery ...................... .80
Convenience closing feature ............ 91
Convenience opening feature .......... 90
Dis play message ............................ 278
Door central locking/unlocking ...... .77
Important safety notes .................... 77
KEYLESS-GO start function .............. 79
Loss .................................................8 1
Mechanical key ................................ 79
Overview .......................................... 77
Positions (ignition lock) ................. 140
Problem (malfunction) ..................... 81
Starting the engine ........................ 142
Smartphone
Starting the engine ........................ 142
SMS
see also Digital Operator's Man-
ual .................................................. 292
Snow chains
Information .................................... 356
Sockets
Center console .............................. 312
General notes ................................ 312
Luggage compartment ...................3 13
Rear compartment ......................... 312
Sound
Switching on/off ........................... 293
Special seat belt retractor .................. 60
Specialist workshop ............................ 31
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 237
In the Instru
ment cluster ................. 37
Segments ...................................... 233
Selecting the display unit ...............2 43
Standing lamps
Display message ............................ 260
Switching on/off ........................... 116 Start/Stop button
Starting the engine ........................ 142
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 141
STEER CONTROL .................................. 75
Steering
Display message ............................ 277
Steering Pilot
Activating/deactivating ................. 241
Display message ............................ 271
Steering wheel
Adjusting (electrically) ................... 109
Adjusting (manually) ...................... 108
Button overview ............................... 38
Buttons (on-board computer) ......... 234
Cleaning ......................................... 336
Important safety notes .................. 108
Steering wheel heating .................. 109
Storing settings (memory func-
tion) ............................................... 113
Steering wheel heating
Problem (malfunction) ................... 109
Switching on/off ........................... 109
Steering wheel paddle shifters ........ 152
Stopwatch (RACETIMER) ................... 246
Stowage areas ................................... 300
Stowage compartments
Armrest (under) ............................. 301
Center console .............................. 302
Center console (rear) ..................... 302
Cup holders ................................... 308
Eyeglasses compartment ............... 302
Glove box ....................................... 301
Important safety information ......... 300
Stowage net ................................... 302
Stowage net ....................................... 302
Summer tires
In winter ........................................ 356
Sun visor ............................................ 310
Suspension setting
AIRMATIC ...................................... 188
AMG adaptive sport suspension
system ........................................... 191
Suspension tuning
SETUP (on-board computer,
Mercedes-AMG vehicles) ............... 246
20Index

Parking .......................................... 161
Parking for a long period ................164
Pulling away ................................... 143
Raising ...........................................3 76
Reporting problems ......................... 31
Securing from rolling away ............ 375
Towing away .................................. 349
Transporting .................................. 351
Unlocking (in an emergency) ........... 84
Unlocking (SmartKey) ......................7 7
Vehicle data ................................... 392
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 392
Vehicle data (off-road driving)
Approach/departure angle ............ 394
Fording depth ................................ 393
Maximum gradient climbing abil-
ity .................................................. 394
Vehicle dimensions ........................... 392
Vehicle emergency locking ................ 84
Vehicle identification number
see VIN
Vehicle identification plate .............. 385
Vehicle level
AIRMATIC ...................................... 190
Vehicle level (display message) ....... 265
Vehicle tool kit .................................. 339
Video
Operating the DVD .........................2 39
see also Digital Operator's Man-
ual ..................................................2 92
VIN ...................................................... 385
Seat ............................................... 386
Type plate ...................................... 385
W
Warning and indicator lamps ABS ................................................ 282
Brakes ...........................................2 81
Coolant .......................................... 288
Distance Pilot DISTRONIC ............. 290
Distance warning ........................... 290
Engine diagnostics ......................... 288
ESP
®.............................................. 284
ESP®OFF ....................................... 285
Fuel tank ........................................ 288 Overview .......................................... 37
Parking brake ................................ 287
PASSENGER AIR BAG ...................... 45
Reserve fuel ................................... 288
Restraint system ............................ 287
Seat belt ........................................ 280
Tire pressure monitor .................... 291
Warranty .............................................. 28
Washer fluid
Display message ............................ 278
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 292
Wheel and tire combinations
Tires ............................................... 379
Wheel bolt tightening torque ........... 378
Wheel chock ...................................... 375
Wheels
Changing a wheel .......................... 374
Checking ........................................ 354
Cleaning ......................................... 333
Emergency spare wheel ................. 380
Important safety notes .................. 354
Information on driving .................... 354
Interchanging/changing ................ 374
Mounting a new wheel ................... 377
Mounting a wheel .......................... 375
Overview ........................................ 354
Removing a wheel .......................... 377
Snow chains .................................. 356
Storing ........................................... 375
Tightening torque ........................... 378
Wheel size/tire size ....................... 379
Window curtain air bag
Display message ............................ 257
Operation ......................................... 51
Windows
see Side windows
Windshield
Defrosting ...................................... 133
Infrared reflective .......................... 324
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 329
Important safety notes .................. 391
Windshield wipers
Problem (malfunction) ................... 124
24Index

These devices may not cause harmful interfer-
ence, and 2) These devices must accept any
interference received, including interference
that may cause undesired operation. Changes
or modifications not expressly approved by the
party responsible for compliance could void the
user’s authority to operate the equipment."
Canada:"The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the fol-
lowing two conditions: (1) These devices may
not cause interference, and (2) These devices
must accept any interference, including inter-
ference that may cause undesired operation of
the device."
Diagnostics connection
The diagnostics connection is only intended for
the connection of diagnostic equipment at a
qualified specialist workshop.
GWARNING
If you connect equipment to a diagnostics
connection in the vehicle, it may affect the
operation of vehicle systems. As a result, the
operating safety of the vehicle could be affec-
ted. There is a risk of an accident.
Only connect equipment to a diagnostics con-
nection in the vehicle, which is approved for
your vehicle by Mercedes-Benz.
GWARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
!If the engine is switched off and equipment
on the diagnostics connection is used, the
starter battery may discharge.
Connecting equipment to the diagnostics con-
nection can lead to emissions monitoring infor- mation being reset, for example. This may lead
to the vehicle failing to meet the requirements of
the next emissions test during the main inspec-
tion.
Qualified specialist workshop
An authorized Mercedes-Benz Center is a quali-
fied specialist workshop. It has the necessary
specialist knowledge, tools and qualifications to
correctly carry out the work required on your
vehicle. This is especially the case for work rel-
evant to safety.
Always have the following work carried out at an
authorized Mercedes-Benz Center:
Rwork relevant to safety
Rservice and maintenance work
Rrepair work
Ralterations, installation work and modifica-
tions
Rwork on electronic components
Correct use
If you remove any warning stickers, you or oth-
ers could fail to recognize certain dangers.
Leave warning stickers in position.
Observe the following information when driving
your vehicle:
Rthe safety notes in this manual
Rthe vehicle technical data
Rtraffic rules and regulations
Rlaws and safety standards pertaining to motor
vehicles
Problems with your vehicle
If you should experience a problem with your
vehicle, particularly one that you believe may
affect its safe operation, we urge you to contact
an authorized Mercedes-Benz Center immedi-
ately to have the problem diagnosed and recti-
fied. If the problem is not resolved to your sat-
isfaction, please discuss the problem again with
the Mercedes-Benz Center or, if necessary, con-
tact us at one of the following addresses.
In the USA
Customer Assistance Center
Mercedes-Benz USA, LLC
Operating safety31
Introduction
Z

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:
Roperating states of system components (e.g.
fill levels, battery status, tire pressure)
Rstatus messages concerning the vehicle or its
individual components (e.g. wheel rpm/
speed, deceleration, lateral acceleration, indi- cation of whether seat belts are fastened)
Rmalfunctions and defects in important system
components (e.g. lights, brakes)
Rinformation about events leading to vehicle
damage
Rsystem responses in special driving situations
(e.g. air bag deployment, intervention of sta-
bility control systems)
Rambient conditions (e.g. temperature, rain
sensor)
In addition to performing the actual control unit function, these data are used by manufacturers
32Data stored in the vehicle
Introduction

The braking application of Active Brake Assist
with cross-traffic function is ended automati-
cally if:
Ryou maneuver to avoid the obstacle
Rthere is no longer a risk of collision
Rthere is no longer an obstacle detected in
front of your vehicle
STEER CONTROL
General information
STEER CONTROL helps you by transmitting a
noticeable steering force to the steering wheel
in the direction required for vehicle stabilization.
This steering assistance is provided in particular
if:
Rboth right wheels or both left wheels are on a wet or slippery road surface when you brake
Rthe vehicle starts to skid
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 66).
No steering assistance is provided from STEER
CONTROL, if:
RESP®is deactivated
RESP®is malfunctioning
Rthe steering is malfunctioning
If ESP®is malfunctioning, you will be assisted
further by the electrical power steering.
Protection against theft
Immobilizer
XTo activate with the SmartKey: remove the
SmartKey from the ignition lock.
XTo activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
XTo deactivate: switch on the ignition.
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Anyone
can start the engine if a valid SmartKey has been
left inside the vehicle.
iThe immobilizer is always deactivated when
you start the engine.
In the event that the engine cannot be started
(yet the vehicle's battery is charged), the sys-
tem is not operational. Contact an authorized
Mercedes-Benz Center or call
1-800 FOR-MERCEDES (in the USA) or
1-800-387-0100 (in Canada).
ATA (anti-theft alarm system)
XTo arm: lock the vehicle with the SmartKey or
KEYLESS-GO.
Indicator lamp :flashes. The alarm system
is armed after approximately 15 seconds.
XTo switch off using the SmartKey: unlock
the vehicle with the SmartKey.
or
XInsert the SmartKey into the ignition lock.
XTo switch off using KEYLESS-GO: unlock
the vehicle with KEYLESS-GO.
or
XPress the Start/Stop button on the dash-
board. The SmartKey must be inside the vehi- cle.
A visual and audible alarm is triggered if the
alarm system is armed and you open:
Ra door
Rthe vehicle with the mechanical key
Rthe tailgate
Rthe hood
Protection against theft75
Safety
Z

If activated in the multimedia system, the loca-
tor lighting also lights up in the dark (see the
Digital Operator's Manual).
XTo open the tailgate automatically from
outside the vehicle:press and hold theF
button until the tailgate opens.
Vehicles with KEYLESS-GO:
XTo close the tailgate automatically from
outside the vehicle: if the SmartKey is loca-
ted in the immediate vicinity of the vehicle,
press the Fbutton on the SmartKey.
When the tailgate closes you can then release
the button.
KEYLESS-GO
General notes
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a KEY-
LESS-GO key in the vehicle (
Ypage 142).
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry the
SmartKey with you. You can combine the func-
tions of KEYLESS-GO with those of a conven-
tional SmartKey. Unlock the vehicle by using
KEYLESS-GO, for instance, and lock it using the
& button on the SmartKey.
The driver's door and the door at which the han-
dle is used, must both be closed. The SmartKey
must be outside the vehicle. When locking or
unlocking with KEYLESS-GO, the distance
between the SmartKey and the corresponding
door handle must not be greater than 3 ft (1 m).
KEYLESS-GO checks whether a valid SmartKey
is in the vehicle by periodically establishing a
radio connection between the vehicle and the
SmartKey. This happens:
Rwhen starting the engine
Rwhile driving
Rwhen the external door handles are touched
Rduring convenience closing
XTo unlock the vehicle: touch the inner sur-
face of the door handle.
XTo lock the vehicle: touch sensor surface :
or ;.
Make sure that you do not touch the inner
surface of the door handle.
XConvenience closing feature: touch
recessed sensor surface ;for an extended
period.
Further information on the convenience closing
feature (
Ypage 90).
If you pull on the handle of the tailgate, only the cargo compartment of the vehicle is unlocked.
Deactivating and activating
If you do not intend to use a SmartKey for an
extended period of time, you can deactivate the
KEYLESS-GO function of the SmartKey. The
SmartKey will then use very little power, thereby
conserving battery power. For the purposes of
activation/deactivation, the vehicle must not be
nearby.
XTo deactivate: press the&button on the
SmartKey twice in rapid succession.
The battery check lamp of the SmartKey
flashes twice briefly and lights up once, KEY-
LESS-GO is deactivated (
Ypage 80).
XTo activate: press any button on the Smart-
Key.
or
XInsert the SmartKey into the ignition lock.
KEYLESS-GO and all of its associated features
are available again.
78SmartKey
Opening and closing