Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Aquaplaning ...................................... .161
Ashtray ............................................... 275
Assistance display (on-board com-
puter) ................................................. .208
Assistance menu (on-board com-
puter) ................................................. .208
ASSYST PLUS
Displaying a service message ....... .285
Driving abroad ............................... 285
Hiding a service message .............. 285
Information about Service ............. 285
Resetting the service interval dis-
play ................................................ 285
Service message ............................ 284
Special service requirements ......... 285
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 73
Function .......................................... .73
Switching off the alarm .................... 73
ATTENTION ASSIST
Activating/deactivating ................. 209
Display message ............................ 234
Function/note s............................. 189
Audio 20
Switching on/of f........................... 259
Audio menu (on-board computer) .... 206
Authorised workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 230
see Lights
Automatic engine start (ECO start/
stop function) .................................... 138
Automatic engine switch-off (ECO
start/stop function) .......................... 137
Automatic front-passenger front
airbag deactivation
Display message ............................ 226
Automatic front-passenger front
airbag deactivation system
Operation ......................................... 47
Problems ......................................... 50
System self-test ............................... 49
Automatic headlamp mode .............. 107Automatic transmission
Accelerator pedal position ............. 147
Changing gear ............................... 147
DIRECT SELECT lever ..................... 144
Drive program display .................... 144
Drive programs .............................. 148
Driving tips .................................... 147
DYNAMIC SELECT button (all vehi-
cles except Mercedes-AMG vehi-
cles) ............................................... 141
DYNAMIC SELECT controller
(Mercedes-AMG vehicles) .............. 141
Emergency running mod e.............. 152
Engaging drive position .................. 145
Engaging neutral ............................ 145
Engaging park position
(Mercedes-AMG vehicles) .............. 146
Engaging park position automati-
cally ............................................... 144
Engaging reverse gear ................... 145
Engaging the park position ............ 144
Holding the vehicle stationary on
uphill gradients .............................. 148
Kickdown ....................................... 148
Manual shifting .............................. 150
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 213
Overview ........................................ 143
Problem (fault) ............................... 152
Pulling away ................................... 135
Selector lever ................................ 146
Starting the engine ........................ 135
Steering wheel gearshift paddle s... 150
Trailer towing ................................. 148
Transmission position display ........ 146
Transmission position display
(DIRECT SELECT lever) ................... 144
Transmission positions .................. 147
Automatic transmission emer-
gency running mode ......................... 152
Auxiliary heating
Activating/deactivating ................. 127
Activating/deactivating (on the
centre console ).............................. 127
Remote control .............................. 127
Setting ........................................... 211
Auxiliary heating/ventilation
Display message ............................ 245 Index
5
Important safety notes .................. 126
Problem (display message) ............ 130
Setting the departure time .............1
28
Auxiliary ventilation
Activating/deactivating ................. 127
Activating/deactivating (on the
centre console ).............................. 127
Remote control .............................. 127
Axle load, permissible (trailer tow-
ing) ...................................................... 334 B
Back button ....................................... 260
Ball coupling
Folding in ....................................... 197
Folding in/out ................................ 197
Folding out ..................................... 197
BAS (Brake Assist System) ................. 66
Battery (key)
Checking .......................................... 79
Important safety notes .................... 79
Replacing ......................................... 79
Battery (vehicle)
Charging ........................................ 301
Display message ............................ 232
Important safety notes .................. 299
Jump starting ................................. 301
Belt
see Seat belts
Belt tensioner
Activation ......................................... 51
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 209
Display message ............................ 235
Notes/function .............................. 192
Trailer towing ................................. 193
Blootooth ®
Connecting a different mobile
phone ............................................ 263
Bluetooth ®
Searching for a mobile phone ........ 263
See also Digital Owner's Manua l... 259
Telephony ...................................... 262
Bonnet
Active bonnet (pedestrian protec-tion) ............................................... 280 Closing ........................................... 282
Display message ............................ 244
Important safety notes .................. 280
Opening ......................................... 281
Boot
Emergency release .......................... 88
Important safety notes .................... 86
Opening (automatically from out-
side) ................................................. 87
Opening (from outside the vehi-
cle, HANDS-FREE ACCESS) .............. 87
Opening automatically from
inside ............................................... 88
Opening/closing (manually from
outside) ............................................ 86
Boot lid
Display message ............................ 244
Opening dimensions ...................... 333
Boot load (maximum) ........................ 333
Brake
EBD .................................................. 72
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 223
Notes ............................................. 331
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamp
Replacing bulb s............................. 113
Brake lamps
Adaptive ........................................... 69
Display message ............................ 229
Brakes
ABS .................................................. 66
BAS .................................................. 66
Brake fluid (notes) ......................... 331
Braking assistance appropriate to
the situation ..................................... 68
Display message ............................ 217
Driving tip s.................................... 160
Hill start assist ............................... 136
HOLD function ............................... 172
Important safety notes .................. 160
Parking brake ................................ 157
Warning lamp ................................. 249 6
Index
Key
Important safety notes
G
WARNING
If children are left unsupervised in the vehicle, they could:
R open doors, thereby endangering other per-
sons or road users
R get out and be struck by oncoming traffic
R operate vehicle equipment and become
trapped, for example
In addition, the children could also set the
vehicle in motion, for example, if they:
R release the parking brake
R shift the automatic transmission out of park
position P or shift manual transmission into
neutral
R start the engine
There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children and animals unattended in the vehi-
cle. Keep the keys out of the reach of children. G
WARNING
If you attach heavy or large objects to the key, the key could be unintentionally turned in the
ignition lock. This could cause the engine to
be switched off. There is a risk of an accident.
Do not attach any heavy or large objects to the
key. Remove any bulky keyrings before insert-
ing the key into the ignition lock.
! Keep the key away from strong magnetic
fields. Otherwise, the remote control function could be affected.
Strong magnetic fields can occur in the vicin-
ity of powerful electrical installations.
Do not keep the key: R with electronic devices, e.g. a mobile phone
or another key
R with metallic objects, e.g. coins or metal foil
R inside metallic objects, e.g. a metal case
Vehicles with KEYLESS-GO start function: do
not keep the key in the boot. Otherwise, the key may not be detected, e.g. when starting the
engine using the Start/Stop button.
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury.
Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld-
erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the outside, the double lock function is activated as stand-
ard. It is then not possible to open the doors
from inside the vehicle. You can deactivate the
double lock function by deactivating the interior
motion sensor (Y page 75). The doors can then
be opened from the inside after the vehicle has
been locked from the outside. You can open the rear doors from inside the vehicle if they are not
secured by the child-proof locks (Y page 65).
The anti-theft alarm system is triggered if the
door is opened from the inside. Switch off the
alarm (Y page 73). Key functions
:
& Locks the vehicle
; F Opens the boot lid
= % Unlocks the vehicle
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 76
KeyOpening and closing
X
To lock: press the &button.
The key centrally locks/unlocks: R the doors
R the boot lid
R the fuel filler flap
During unlocking, the turn signals flash once.
During locking, they flash three times.
When the locator lighting is activated via the
multimedia system, it also lights up when it is
dark after the vehicle is unlocked with the
remote control (see the separate operating
instructions).
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 211).
X To open the boot lid automatically: press
and hold the Fbutton until the boot lid
opens (Y page 87). KEYLESS-GO
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.
Locking and unlocking 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 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 beoutside 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.
A check that periodically establishes a radio
connection between the vehicle and the key
determines whether a valid key is in or in the
direct vicinity of the vehicle. This occurs, for
example:
R during engine start
R during driving R
when using HANDS-FREE ACCESS
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 clos-
ing feature (Y page 90). X
To unlock the boot lid: pull boot lid han-
dle :.
Deactivating and activating If you do not intend to use the vehicle for an
extended period of time, you can deactivate
KEYLESS-GO. 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. Key
77Opening and closing Z
Problems with the key
Problem
Possible causes/consequences and
M
MSolutions You cannot lock or
unlock the vehicle using
the key. The key battery is weak or discharged.
X Vehicles without KEYLESS-GO or KEYLESS-GO start function:
try again to lock/unlock the vehicle using the remote control func- tion of the key. Point the tip of the key at the driver's door handle
from close range and press the %or& button.
If this does not work: X Check the key battery (Y page 79) and replace if necessary
(Y page 79).
X Unlock (Y page 85) or lock (Y page 85) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Vehicles without KEYLESS-GO or KEYLESS-GO start function:
try again to lock/unlock the vehicle using the remote control func-
tion of the key. Point the tip of the key at the driver's door handle
from close range and press the %or& button.
If this does not work:
X Unlock (Y page 85) or lock (Y page 85) the vehicle using the
emergency key element. The key is faulty.
X Unlock (Y page 85) or lock (Y page 85) 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. The key battery is weak or discharged.
X Check the key battery (Y page 79) and replace if necessary
(Y page 79).
If this does not work: X Unlock (Y page 85) or lock (Y page 85) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 85) or lock (Y page 85) the vehicle using the
emergency key element. Key
81Opening and closing Z
Problem
Possible causes/consequences and
M
MSolutions There is a fault with KEYLESS-GO.
X Lock or 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 or unlocked even using the remote
control function:
X Unlock (Y page 85) or lock (Y page 85) 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 301).
or X Jump-start the vehicle (Y page 301).
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 weak or discharged.
X Check the key battery (Y page 79) and replace if necessary
(Y page 79).
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. 82
KeyOpening and closing
R
HANDS-FREE ACCESS does not function dur-
ing engine start.
R Dirt caused by road salt around sensors :
may restrict functionality.
Using HANDS-FREE ACCESS with a pros-
thetic leg may restrict functionality.
R If a KEYLESS-GO key is in the KEYLESS-GO
detection range to the rear of the vehicle,
HANDS-FREE ACCESS could be triggered.
The boot lid could thus be opened uninten-
tionally, for example, when you:
- fold the ball coupling in or out
- couple or uncouple a trailer
- fit or remove a rear-mounted bicycle rack
- load/unload bicycles on/from a rear-
mounted bicycle rack
- set down or lift up an object behind the
vehicle
- polish the rear of the vehicle
Do not carry the KEYLESS-GO key with you in
such situations. This will prevent the uninten- tional opening of the boot lid.
Operation X
To open: kick into sensor detection range :
below the bumper with your foot.
X If the boot lid does not open after several
attempts: wait at least ten seconds then kick
under the bumper once again.
If you hold your foot under the bumper for too
long, the boot lid does not open. Repeat the
kicking movement more quickly if this occurs. Opening automatically from inside
General notes !
The boot lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the boot lid.
The opening dimensions of the boot lid can be
found under "Vehicle data" (Y page 333).
Opening You can open the boot lid from the driver's seat
when the vehicle is stationary and unlocked. X
To open: pull remote operating switch :for
the boot lid until the boot lid opens. Boot emergency release
General notes !
The boot lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the boot lid.
The opening dimensions of the boot lid can be
found in the "Vehicle data" section
(Y page 333).
If the boot lid can no longer be unlocked:
R using the key, or
R using the remote operating switch in the door
control panel:
Use the emergency release on the inside of the boot lid.
You can reach the emergency release via the
boot. 88
BootOpening and closing
R
the remote control being in an unfavourable
position in relation to the vehicle
R transmitting from an enclosed space
If the remote control battery is low, the battery
symbol on the left of the display is shown as
empty. Replace the remote control battery and
observe the important safety notes when doing so (Y page 129).
Activating/deactivating the auxiliary
heating or auxiliary ventilation Remote control
:
Display
; u Switches the auxiliary heating or aux-
iliary ventilation on
Checks the status
= . Sets the departure time
? ^ Switches the auxiliary heating or aux-
iliary ventilation off
A , Sets the departure time
X To switch on: press and hold the ubut-
ton.
ON is shown in the remote control display.
X To switch off: press and hold the ^but-
ton.
OFF is shown in the remote control display.
Checking the status of the auxiliary heat-
ing or auxiliary ventilation
X Briefly press the ubutton.
The following messages may appear on the dis- play: Display Meaning
The auxiliary heating or
auxiliary ventilation is
deactivated. The auxiliary ventilation is
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
ventilation.
The auxiliary heating is
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
heating.
A departure time has been
activated. The departure
time appears on the dis-
play. A departure time has been
activated. The auxiliary
ventilation is currently
activated. The number on
the display shows the
remaining time (in
minutes) for the auxiliary
ventilation. If the vehicle is
not started after this time, the running time is
increased by five minutes. A departure time has been
activated. The auxiliary
heating is currently activa-
ted. The number on the
display shows the remain-
ing time (in minutes) for
the auxiliary heating. If the
vehicle is not started after this time, the running time
is increased by five
minutes. If the engine has not yet reached operating tem-
perature when it is started, the auxiliary heating running time is increased. The auxiliary heating
continues to run until the operating temperature
is reached. If this is the case, the ysymbol
appears in the remote control display and the
running time is zero minutes.
Setting the departure time
Make sure that the time set in the vehicle is
correct before setting the departure time (see
the separate operating instructions). Otherwise, the auxiliary heating may activate at the wrong 128
Operating the climate control systemClimate control