key battery MERCEDES-BENZ GLA-Class 2015 X156 Owner's Manual

Assistance menu (on-board com-
puter)
.................................................. 213
ASSYST PLUS Displaying a service message ........ 297
Hiding a service message .............. 297
Notes ............................................ .296
Resetting the service interval dis-
play ................................................ 297
Service message ............................ 296
Special service requirements ......... 297
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 73
Function .......................................... .73
Switching off the alarm .................... 73
ATTENTION ASSIST
Activating/deactivating ................. 214
Display message ............................ 241
Function/note s............................. 197
see ATTENTION ASSIST
Audio menu (on-board computer) .... 210
Audio system see separate operating instructions
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 237
see Lights
Automatic car wash (care) ............... 298
Automatic engine start (ECO start/
stop function) .................................... 146
Automatic engine switch-off (ECO
start/stop function) .......................... 145
Automatic headlamp mode .............. 111
Automatic transmission Accelerator pedal position ............. 151
Automatic drive program ............... 153
Changing gear ............................... 151
DIRECT SELECT lever ..................... 148
Drive program display .................... 149
Drive program display (selector
lever) ............................................. 150
Driving tips .................................... 151
Emergency running mode .............. 157
Engaging drive position .................. 150
Engaging neutral ............................ 150 Engaging park position (AMG vehi-
cles) ............................................... 151
Engaging reverse gear ................... 149
Engaging the park position ............ 149
Holding the vehicle stationary on
uphill gradients .............................. 151
Kickdown ....................................... 152
Manual drive progra m.................... 154
Overview ........................................ 148
Problem (malfunction) ................... 157
Program selector button ................ 152
Pulling away ................................... 144
Selector lever ................................ 150
Starting the engine ........................ 144
Steering wheel paddle shifters ...... 153
Transmission positions .................. 151
Automatic transmission emer-
gency mode ....................................... 157 B
Backup lamp Changing bulbs .............................. 120
Display message ............................ 236
Bag hook ............................................ 272
BAS (Brake Assist System) ................. 65
Basic settings see Settings
Battery (SmartKey)
Checking .......................................... 78
Important safety notes .................... 78
Replacing ......................................... 78
Battery (vehicle)
Charging ........................................ 313
Display message ............................ 239
Important safety notes .................. 311
Jump starting ................................. 315
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating ................. 214
Display message ............................ 242
Notes/function .............................. 198
Blower
see Climate control
Brake Assist
see BAS (Brake Assist System) Index
5

S
Safety Children in the vehicle ..................... 58
Child restraint systems .................... 59
Occupant Classification System
(OCS) ............................................... 51
Safety system
see Driving safety systems
Seat belts
Adjusting the height .........................46
Cleaning ........................................ .304
Correct usage .................................. 45
Fastening ......................................... 46
Important safety guidelines ............. 44
Introduction ..................................... 44
Releasing ......................................... 47
Warning lamp ................................. 252
Warning lamp (function) ................... 47
Seats
Adjusting (AMG Performance
Seat) .............................................. 100
Adjusting (electrically) ..................... 98
Adjusting (manually) ........................ 98
Adjusting the 4-way lumbar sup-
port ................................................ 100
Adjusting the head restraint ............ 98
Calling up a stored setting (mem-
ory function) .................................. 107
Cleaning the cover ......................... 303
Correct driver's seat position ........... 96
Important safety notes .................... 97
Seat heating problem .................... 102
Storing settings (memory func-
tion) ............................................... 106
Switching seat heating on/off ....... 100
Selecting a gear
see Automatic transmission
Selector lever
see Automatic transmission
Sensors (cleaning instructions) ....... 301
Service Center see Qualified specialist workshop
Service menu (on-board com-
puter) ................................................. .215
Service products Brake fluid ..................................... 365
Coolant (engine) ............................ 365 Engine oil ....................................... 364
Fuel ................................................ 362
Important safety notes .................. 361
Refrigerant (air-conditioning sys-
tem) ............................................... 367
Washer fluid ................................... 366
Setting a speed
see Cruise control
Settings
Factory (on-board computer) ......... 218
On-board computer ....................... 215
Setting the air distribution ...............134
Setting the airflow ............................ 134
SETUP (on-board computer) ............. 219
Side impact air bag .............................50
Side marker lamp (display mes-
sage) ................................................... 236
Side windows Cleaning ......................................... 300
Convenience closing feature ............ 88
Convenience opening feature ..........88
Important safety information ........... 87
Opening/closing .............................. 87
Problem (malfunction) .....................90
Resetting ........................................ .89
Reversing feature ............................ .87
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 78
Changing the programming .............77
Checking the battery ...................... .78
Convenience closing feature ............ 88
Convenience opening feature .......... 88
Display message ............................ 252
Door central locking/unlocking ...... .76
Important safety notes .................... 76
Loss .................................................80
Mechanical key ................................ 77
Positions (ignition lock) ................. 143
Problem (malfunction) ..................... 80
Starting the engine ........................ 144
SmartKey positions (ignition lock) .. 143
Snow chains ...................................... 327 Index
17

Display message ............................ 235
Switching on/off ........................... 112
Type identification plate
see Vehicle identification plate U
Unlocking Emergency unlocking ....................... 83
From inside the vehicle (central
unlocking button) ............................. 82 V
Vanity mirror (in the sun visor) ........ 275
Vehicle Correct use ...................................... 28
Data acquisition ............................... 29
Equipment ....................................... 24
Individual settings .......................... 215
Limited Warranty ............................. 29
Loading .......................................... 335
Locking (in an emergency )............... 83
Locking (SmartKey ).......................... 76
Lowering ........................................ 351
Maintenance .................................... 25
Parking for a long period ................ 162
Pulling away ................................... 144
Raising ........................................... 349
Reporting problems ......................... 28
Securing from rolling away ............ 349
Towing away .................................. 317
Tow-starting ................................... 317
Transporting .................................. 320
Unlocking (in an emergency) ........... 83
Unlocking (SmartKey )...................... 76
Vehicle data ................................... 368
Vehicle battery
see Battery (vehicle)
Vehicle data
Roof load (maximum) ..................... 368
Vehicle data (off-road driving)
Approach/departure angle ............ 369
Maximum gradient climbing abil-
ity .................................................. 369
Maximum water depth ................... 369
Vehicle dimensions ........................... 368
Vehicle emergency locking ................ 83Vehicle identification number
see VIN
Vehicle identification plate .............. 360
Vehicle maintenance see ASSYST PLUS
Vehicle tool kit .................................. 306
Ventilation see Climate control
Video (DVD) ........................................ 211
VIN Seat ............................................... 361
Type plate ...................................... 360 W
Warning and indicator lamps ABS ................................................ 254
Brakes ........................................... 254
Check Engine ................................. 260
Coolant .......................................... 260
Distance warning ........................... 262
DISTRONIC PLUS ........................... 262
ESP ®
.............................................. 256
ESP ®
OFF ....................................... 257
Fuel tank ........................................ 260
Overview .......................................... 34
Reserve fue l................................... 260
Restraint system ............................ 259
Seat belt ........................................ 252
SPORT handling mod e................... 257
Tire pressure monitor .................... 263
Warranty .............................................. 24
Washer fluid Display message ............................ 251
Wheel and tire combination
see Tires
Wheel bolt tightening torque ........... 351
Wheel chock ...................................... 349
see Wheel chock
Wheels
Changing a whee l.......................... 347
Checking ........................................ 325
Cleaning ......................................... 300
Cleaning (warning) ......................... 348
General notes ................................ 352
Important safety notes .................. 324
Information on driving .................... 324 Index
21

X
To activate: remove the SmartKey from
the ignition lock.
X To deactivate: switch on the ignition.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
i The immobilizer is always deactivated
when you start the engine.
In the event that the engine cannot be star- ted (yet the vehicle's battery is charged),
the system is not operational. Contact an
authorized Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA) or
1-800-387-010 0(in Canada). ATA (anti-theft alarm system)
X
To arm: lock the vehicle with the Smart-
Key.
Indicator lamp 0043flashes. The alarm sys-
tem is armed after approximately
15 seconds.
X To disarm: unlock the vehicle with the
SmartKey.
or
X Insert the SmartKey into the ignition lock.
A visual and audible alarm is triggered if the
alarm system is armed and you open:
R the vehicle with the mechanical key
R a door
R the tailgate
R the hood X
To stop the alarm: insert the SmartKey
into the ignition lock.
The alarm is switched off.
or X Press the 0036or0037 button on the
SmartKey.
The alarm is switched off.
The alarm is not switched off, even if you
close the open door that triggered it, for
example.
i If the alarm continues for more than
30 seconds, the mbrace emergency call
system automatically notifies the Cus-
tomer Assistance Center. This is done
either by text message or data connection.
The emergency call system sends the mes- sage provided that:
R you have subscribed to the mbrace ser-
vice.
R the mbrace service has been activated
properly.
R the necessary mobile phone network is
available. Protection against theft
73Safety Z

The turn signals flash once when unlocking
and three times when locking.
i When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 216).
i You can also set an audible signal to con-
firm that the vehicle has been locked. The
audible signal can be activated and deacti-
vated using the on-board computer
(Y page 217).
X To open the tailgate automatically:
press button 0044until the tailgate opens
(Y page 85). Changing the settings of the locking
system
You can change the settings of the locking
system. When you then unlock the vehicle
only the driver's door and the fuel filler flap
are unlocked. This is useful if you frequently
travel on your own.
X To change the setting: press and hold
down the 0036and0037 buttons simulta-
neously for approximately six seconds until
the battery check lamp (Y page 78)
flashes twice.
i If the setting of the locking system is
changed within the signal range of the vehi- cle, pressing the 0037or0036 button:
R locks or
R unlocks the vehicle
The SmartKey now functions as follows:
X To unlock the driver's door: press the
0036 button once.
X To unlock centrally: press the0036but-
ton twice.
X To lock centrally: press the0037button.
X To restore the factory settings: press
and hold down the 0036and0037 buttons
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice (Y page 78). Mechanical key
General notes If the vehicle can no longer be unlocked with
the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered (Y page 73).
There are several ways to turn off the alarm:
X Press the 0036or0037 button on the
SmartKey.
or X Insert the SmartKey into the ignition lock.
If you unlock the vehicle using the mechanical key, the fuel filler flap will not be unlocked
automatically.
X To unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key X
Push release catch 0043in the direction of
the arrow and at the same time remove
mechanical key 0044from the SmartKey.
For further information about: R unlocking the driver's door (Y page 83)
R unlocking the cargo compartment
(Y page 86)
R locking the vehicle (Y page 83) SmartKey
77Opening and closing Z

Inserting the mechanical key
X
Push mechanical key 0044completely into
the SmartKey until it engages, and release
catch 0043is back in its basic position. SmartKey battery
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.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm .
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist workshop.
Checking the battery X
Press the 0037or0036 button.
The battery is working properly if battery
check lamp 0043lights up briefly. The battery is discharged if battery check
lamp 0043does not light up briefly.
X Change the battery (Y page 78).
i If the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the 0037or0036 button:
R locks or
R unlocks the vehicle
i You can get a battery at any qualified spe-
cialist workshop.
Replacing the battery You require a CR 2025 3 V cell battery.
X Take the mechanical key out of the Smart-
Key (Y page 77). X
Press mechanical key 0044into the opening
in the SmartKey in the direction of the
arrow until battery tray cover 0043opens.
When doing so, do not hold cover 0043shut.
X Remove battery tray cover 0043.78
SmartKeyOpening and closing

X
Repeatedly tap the SmartKey against your
palm until battery 0087falls 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 contaminants.
X Insert the front tabs of battery tray cover 0043
and then press to close it.
X Insert mechanical key into the SmartKey
(Y page 77).
X Check the function of all SmartKey buttons
on the vehicle. SmartKey
79Opening and closing Z

Problems with the SmartKey
Problem
Possible causes/consequences and
0050
0050Solutions You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the 0036or
0037 button.
If this does not work:
X Check the SmartKey battery and replace it if necessary
(Y page 78).
X Unlock (Y page 83) or lock (Y page 83) the vehicle using the
mechanical key. There is interference from a powerful source of radio waves.
X Try again to lock/unlock the vehicle using the remote control
function of the SmartKey. Point the tip of the SmartKey at the
driver's door handle from close range and press the 0036/
0037 button. The SmartKey is faulty.
X Unlock (Y page 83) or lock (Y page 83) the vehicle using the
mechanical key.
X Have the SmartKey checked at a qualified specialist workshop. You have lost a Smart-
Key. X
Have the SmartKey deactivated at a qualified specialist work-
shop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. 80
SmartKeyOpening and closing

Problem
Possible causes/consequences and
0050
0050Solutions The engine cannot be
started using the
SmartKey. 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 311).
or
X Jump-start the vehicle (Y page 315).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the
SmartKey. The steering lock is mechanically blocked.
X Remove the SmartKey and reinsert it into the ignition lock. While
doing this, turn the steering wheel in both directions. Doors
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle, they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
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 or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. You should preferably place luggage or loads
in the cargo compartment. Observe the load-
ing guidelines (Y page 266). Unlocking and opening doors from
the inside
X
To unlock and open a front door: pull
door handle 0044.
If the door is locked, locking knob 0043pops
up. The door is unlocked and opens.
X To unlock a rear door: pull up locking
knob 0043.
The door is unlocked and can be opened.
X To open a rear door: pull door handle0044. Doors
81Opening and closing Z

Therefore, do not switch the seat heating on
repeatedly. The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level 3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 143).
X To switch on: press button0043repeatedly
until the desired heating level is set.
X To switch off: press button0043repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off. Seats
101Seats, steering wheel and mirrors Z