2016 MERCEDES-BENZ GLS SUV key battery

Engaging the park position ............ 156
Gliding mod
e................................. 159
Kickdown ....................................... 159
Manual shifting .............................. 160
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 255
Overview ........................................ 156
Problem (fault) ............................... 163
Pulling away ................................... 150
Starting the engine ........................ 150
Steering wheel gearshift paddle s... 160
Trailer towing ................................. 159
Transmission position display ........ 158
Transmission positions .................. 158
Automatic transmission emer-
gency running mode ......................... 163
AUX jacks
CD/DVD drive ............................... 311
Auxiliary heating
Setting ........................................... 253
Auxiliary heating/ventilation
Display message ............................ 288
Important safety notes .................. 140
Problem (display message) ............ 144
Remote control .............................. 141
Setting the departure time ............. 143
Switching on/off (on the centre
console) ......................................... 141
Axle load, permissible (trailer tow-
ing) ...................................................... 390 B
Back button ....................................... 304
Bag hook ............................................ 317
Ball coupling
Swinging in .................................... 235
Swinging out .................................. 235
BAS (Brake Assist System) ................. 69
Battery (key)
Checking .......................................... 84
Important safety notes .................... 84
Replacing ......................................... 84
Battery (vehicle)
Charging ........................................ 353
Display message ............................ 272
Important safety notes .................. 351
Jump starting ................................. 354 Overview ........................................ 351
Belt
see Seat belts
Belt tensioner
Activation ......................................... 54
Blind Spot Assist
Activating/deactivating ................. 250
Display message ............................ 279
Notes/function .............................. 219
Trailer towing ................................. 220
see Active Blind Spot Assist
Blootooth ®
Connecting a different mobile
phone ............................................ 307
BlueTEC
Topping up AdBlue ®
....................... 166
BlueTEC (AdBlue ®
) ............................. 384
Bluetooth ®
Searching for a mobile phone ........ 307
See also Digital Owner's Manua l... 303
Telephony ...................................... 306
Bonnet
Active bonnet (pedestrian protec-tion) ............................................... 332
Closing ........................................... 333
Display message ............................ 287
Important safety notes .................. 332
Opening ......................................... 333
Boot
see Tailgate
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 263
Note s............................................. 386
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Adaptive ........................................... 72
Display message ............................ 270
Brakes
ABS .................................................. 69
Adaptive Brake Assist ...................... 71
BAS .................................................. 69
Brake fluid (notes) ......................... 386
Display message ............................ 259 6
Index

K
Key Changing the battery ...................... .84
Checking the battery ...................... .84
Convenience closing feature ............ 95
Convenience opening feature .......... 95
Display message ............................ 289
Door central locking/unlocking ...... .81
Emergency key element ................... 83
Important safety note s.................... 81
KEYLESS-GO start function .............. 83
Loss ................................................. 85
Modifying the programming ............. 83
Overview .......................................... 81
Positions (ignition lock) ................. 148
Problem (malfunction) ..................... 85
Starting the engine ........................ 150
Key positions
Key ................................................ 148
KEYLESS GO .................................. 148
KEYLESS-GO
Activating ......................................... 82
Convenience closing ........................ 96
Deactivation ..................................... 82
Display message ............................ 289
Locking ............................................ 82
Removing the Start/Stop button ... 149
Start function ................................... 83
Start/Stop button .......................... 148
Starting the engine ........................ 150
Unlocking ......................................... 82
Kickdown
Driving tip s.................................... 159
Manual gearshifting ....................... 162
Kneebag ............................................... 49 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 251
Display message ............................ 278
Function/information .................... 221
see Active Lane Keeping Assist
Lap time (RACETIMER) ...................... 256
Lashing eyelets ................................. 316 Level control
AIRMATIC ...................................... 198
Level control (display message) ...... 276
Level control (vehicle with the Off- Road Engineering package)
Basic settings ................................ 193
Function/note s............................. 192
Important safety notes .................. 192
Licence plate lamp (display mes-
sage) ................................................... 270
Light sensor (display message) ....... 270
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 252
Active light function ....................... 123
Adaptive Highbeam Assist PLUS .... 124
Automatic headlamp mod e............ 121
Cornering light function ................. 123
Dipped-beam headlamp s............... 121
Driving abroad ............................... 120
Foglamps (extended range) ........... 123
Hazard warning lamps ................... 122
Headlamp flashe r........................... 122
Headlamp rang e............................ 122
Light switch ................................... 120
Main-beam headlamp s................... 122
Motorway mod e............................. 123
Off-road lights ................................ 123
Parking lamps ................................ 121
Rear foglamp ................................. 121
Side lamps ..................................... 121
Switching the daytime driving
lights on/off (on-board com-
puter) ............................................. 252
Turn signals ................................... 122
see Interior lighting
see Replacing bulbs
LIM indicator lamp
Cruise control ................................ 181
Distance Pilot DISTRONIC ............. 185
Variable limite r.............................. 183
Limiter
Deactivating, variabl e.................... 184
Function/note s............................. 182
LIM indicator lamp ......................... 183
Permanent ..................................... 184 14
Index

Leaving parked up .........................1
71
Locking (in an emergency) .............. .89
Locking (key) ................................... 81
Lowering ........................................ 373
Operating safety .............................. 27
Parking .......................................... 168
Pulling away ................................... 150
Raising ........................................... 371
Registration ..................................... 30
Securing from rolling away ............ 370
Towing away .................................. 356
Transporting .................................. 358
Unlocking (in an emergency) ........... 89
Unlocking (key) ................................ 81
Vehicle data ................................... 387
Vehicle battery
see Battery (vehicle)
Vehicle data ....................................... 387
Vehicle data (off-road driving)
Approach/departure angle ............ 389
Fording depth ................................ 388
Maximum gradient climbing abil-
ity .................................................. 389
Vehicle dimensions ........................... 387
Vehicle emergency locking ................ 89
Vehicle identification number
see VIN
Vehicle identification plate .............. 380
Vehicle level
AIRMATIC ...................................... 198
Vehicle level (display message) ....... 275
Vehicle tool kit .................................. 345
Video
Operating the DVD ......................... 247
See also Digital Owner's Manua l... 303
VIN ...................................................... 380
Seat ............................................... 381
Type plate ...................................... 380 W
Warning and indicator lamps ABS ................................................ 293
Brakes ........................................... 292
Distance Pilot DISTRONIC ............. 301
Distance warning signal ................. 301
ESP ®
.............................................. 295
ESP ®
OFF ....................................... 296 Fuel tank ........................................ 298
LIM (cruise control) ........................ 181
LIM (Distance Pilot DISTRONIC) .... 185
LIM (variable limiter) ...................... 183
Overview .......................................... 35
Parking brake ................................ 298
PASSENGER AIR BAG ...................... 43
Reserve fue l................................... 298
Seat belt ........................................ 291
Tyre pressure monitor ................... 302
Warning triangle ................................ 345
Washer fluid
Display message ............................ 289
Weather display (COMAND Online)
See also Digital Owner's Manua l... 303
Wheel and tyre combinations
Tyres .............................................. 374
Wheel bolt tightening torque ........... 373
Wheel chock ...................................... 370
Wheels
Changing a wheel .......................... 369
Changing/replacing ....................... 369
Checking ........................................ 361
Cleaning ......................................... 340
Emergency spare wheel ................. 375
Fitting a new wheel ........................ 372
Fitting a wheel ............................... 370
Important safety notes .................. 361
Information on driving .................... 361
Overview ........................................ 361
Removing a wheel .......................... 372
Snow chains .................................. 364
Storing ........................................... 370
Tightening torque ........................... 373
Wheel size/tyre size ...................... 374
Windowbag
Display message ............................ 267
Operation ......................................... 49
Windows
Cleaning ......................................... 340
see Side windows
Windscreen
Demisting ...................................... 137
Windscreen washer fluid
see Windscreen washer system
Windscreen washer system
Important safety notes .................. 387
Topping up ..................................... 336 24
Index

If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
R the vehicle locks again
R protection against theft is reactivated
X To lock centrally: press the&button.
The key centrally locks and unlocks the follow-
ing components:
R the doors
R the tailgate
R the fuel filler flap
During unlocking, the turn signals flash once.
During locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated or deactivated using the on-board computer (Y page 253).
Only when all the components have been locked is the visual or audible locking confirmation
issued.
If activated in the multimedia system, the loca-
tor lighting also lights up in the dark (see sepa-
rate operating instructions).
X To open the tailgate automatically from
outside the vehicle:
press and hold theF
button until the tailgate opens.
Vehicles with KEYLESS-GO: X To close the tailgate automatically from
outside the vehicle: if the key is located in
the immediate vicinity of the vehicle, press
the F button on the key.
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 (Y page 150).
Locking and unlocking centrally You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you need to carry the
key with you. You can combine the KEYLESS-GO functions with the functions of a conventional
key. Unlock the vehicle by using KEYLESS-GO, for instance, and lock it using the
&button
on the key.
The driver's door and the door at which the han- dle is used must both be closed. The key must be
outside the vehicle. When locking or unlocking
with KEYLESS-GO, the distance between the key and the corresponding door handle must not be greater than 1 m.
KEYLESS-GO checks whether a valid key is in
the vehicle by periodically establishing a radio
connection between the vehicle and the key.
This happens:
R during engine start
R during driving
R when the external door handles are touched
R during convenience closing X
To unlock the vehicle: touch the inner sur-
face of the door handle.
X To lock the vehicle: touch sensor surface :
or ;.
Make sure that you do not touch the inner
surface of the door handle.
X Convenience closing feature: touch
recessed sensor surface ;for an extended
period.
Further information on the convenience closing
feature (Y page 95).
If you pull on the handle of the tailgate, only the luggage compartment of the vehicle is
unlocked.
Deactivating and activating If you do not intend to use a key for an extended
period of time, you can deactivate the KEYLESS-
GO function of the key. The key will then use very
little power, thereby conserving battery power.
For the purposes of activation or deactivation,
the vehicle does not have to be nearby. 82
KeyOpening and closing

X
To deactivate: press the&button on the
key twice in rapid succession.
The battery check lamp of the key flashes
twice briefly and lights up once, then KEY-
LESS-GO is deactivated (Y page 84).
X To activate: press any button on the key.
or X Insert the key into the ignition lock.
KEYLESS-GO and all its associated features
are available again. KEYLESS-GO start function
General notes Bear in mind that the engine can be started by
any of the vehicle occupants if there is a key in
the vehicle (Y page 150). Changing the settings of the locking
system
You can change the settings of the locking sys-
tem. This means that only the driver's door and
the fuel filler flap are unlocked when the vehicle is unlocked. This is useful if you frequently travel
alone.
X To change the setting: press and hold down
the % and& buttons simultaneously
for about six seconds until the battery indica-
tor lamp flashes twice (Y page 84).
If the setting of the locking system is changed
within the signal range of the vehicle, pressing
the & or% button:
R locks or
R unlocks the vehicle
The key now functions as follows:
X To unlock: press the%button once.
X To unlock centrally: press the%button
twice.
X To lock centrally: press the&button. The KEYLESS-GO function is changed as fol-
lows:
X
To unlock the driver's door: touch the inner
surface of the door handle on the driver's
door.
X To unlock centrally: touch the inner surface
of the door handle on the front-passenger
door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles
(Y page 82).
X To restore the factory settings: press and
hold down the %and& buttons simul-
taneously for approximately six seconds until the battery check lamp flashes twice
(Y page 84). Emergency key element
General notes If the vehicle can no longer be locked or
unlocked with the key or with KEYLESS-GO, use
the emergency key element.
If you use the emergency key element to unlock
and open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
(Y page 78).
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
X To unlock the fuel filler flap: insert the key
into the ignition lock.
Removing the emergency key element Key
83Opening and closing Z

X
Push release catch :in the direction of the
arrow and, at the same time, remove emer-
gency key element ;from the key.
Further information about: R Unlocking the driver's door (Y page 89)
R unlocking the luggage compartment
(Y page 93)
R Locking the vehicle (Y page 89)
Inserting the emergency key element X
Push emergency key element ;completely
into the key until it engages and release
catch :is back in its basic position. Battery of the key
Important safety notes G
WARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatal injury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention immediately. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them with the household rubbish.
They must be collected sep-
arately and disposed of in anenvironmentally responsible
recycling system. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop or to a col-
lection point for used batter-
ies.
Mercedes-Benz recommends that you have the
batteries replaced at a qualified specialist work- shop. Checking the battery
X
Press the &or% button.
The battery is OK if battery check lamp :
lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
X Replace the battery (Y page 84).
If the key battery is checked within the signal
reception range of the vehicle, pressing the
& or% button:
R locks or
R unlocks the vehicle
i You can obtain a battery from any qualified
specialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery.
X Take the emergency key element out of the
key (Y page 83). X
Press emergency key element ;into the
opening in the key in the direction of the arrow
until battery compartment cover :opens.
When doing so, do not hold battery compart-
ment cover :shut.
X Remove battery compartment cover :.84
KeyOpening and closing

X
Repeatedly tap the key against your palm until
battery =falls out.
X Insert the new battery with the positive ter-
minal facing upwards. Use a lint-free cloth to
do so.
X Make sure that the surface of the battery is
free of lint, grease and other contamination. X
Insert the front tabs of battery compartment
cover :into the housing and then press to
close it.
X Insert emergency key element ;into the key
(Y page 84).
X Check the function of all key buttons on the
vehicle. Problems with the key
Problem
Possible causes/consequences and
M MSolutions You can no longer lock or
unlock the vehicle using
the key. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 84) and replace it if necessary
(Y page 84).
If this does not work: X Unlock (Y page 89) or lock (Y page 89) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 89) or lock (Y page 89) the vehicle using the
emergency key element. The key is faulty.
X Unlock (Y page 89) or lock (Y page 89) the vehicle using the
emergency key element.
X Have the key checked at a qualified specialist workshop. You can no longer lock or
unlock the vehicle using
KEYLESS-GO. KEYLESS-GO has been deactivated.
X Reactivate KEYLESS-GO (Y page 82). The key battery is discharged or nearly discharged.
X Check the key battery (Y page 84) and replace it if necessary
(Y page 84).
If this does not work: X Unlock (Y page 89) or lock (Y page 89) the vehicle using the
emergency key element. Key
85Opening and closing Z

Problem
Possible causes/consequences and
M
MSolutions There is interference from a powerful source of radio waves.
X Unlock (Y page 89) or lock (Y page 89) the vehicle using the
emergency key element. There is a fault with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of the
key.
X Have the vehicle and key checked at a qualified specialist work-
shop.
If the vehicle cannot be locked/unlocked even using the remote con-
trol function:
X Unlock (Y page 89) or lock (Y page 89) the vehicle using the
emergency key element.
X Have the vehicle and key checked at a qualified specialist work-
shop. The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary (Y page 353).
or X Jump-start the vehicle (Y page 354).
or X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is in
the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 84) and replace it if necessary
(Y page 84).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. 86
KeyOpening and closing