
Automatic transmission emer-
gency running mode
.........................163
Auxiliary heating
Activating/deactivating ................. 138
Activating/deactivating (on the
centre console ).............................. 138
Remote control .............................. 138
Setting ........................................... 230
Auxiliary heating/ventilation
Display message ............................ 262
Important safety notes .................. 137
Problem (display message) ............ 141
Setting the departure time ............. 139
Auxiliary ventilation
Activating/deactivating ................. 138
Activating/deactivating (on the
centre console ).............................. 138
Remote control .............................. 138
Axle load, permissible (trailer tow-
ing) ...................................................... 359 B
Back button ....................................... 278
Bag hook ............................................ 293
Ball coupling
Folding in ....................................... 215
Folding in/out ................................ 214
Folding out ..................................... 214
BAS (Brake Assist System) ................. 69
Basic settings
see Settings
Battery (key)
Checking .......................................... 82
Important safety notes .................... 82
Replacing ......................................... 82
Battery (vehicle)
Charging ........................................ 324
Display message ............................ 250
Important safety notes .................. 322
Jump starting ................................. 325
Belt
see Seat belts
Belt tensioner
Activation ......................................... 53
Belt warning ......................................... 46 Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 227
Display message ............................ 253
Notes/function .............................. 209
Trailer towing ................................. 210
Blower
see Climate control
Bluetooth ®
Searching for a mobile phone ........ 281
Searching for a mobile phone
(device manager) ........................... 282
See also Digital Owner's Manua l... 277
Telephony ...................................... 280
Bonnet
Active bonnet (pedestrian protec-tion) ............................................... 302
Closing ........................................... 304
Display message ............................ 261
Important safety notes .................. 302
Opening ......................................... 303
Boot
Important safety notes .................... 94
Opening (automatically from out-
side) ................................................. 95
Opening (from outside the vehi-
cle, HANDS-FREE ACCESS) ........ 91, 95
Opening automatically from
inside ............................................... 96
Boot lid
see Tailgate
Boot load (maximum) ........................ 358
Brake
EBD .................................................. 75
Brake Assist
see BAS (Brake Assist System)
Brake assistance
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 241
Notes ............................................. 356
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamp
Replacing bulb s............................. 123
Brake lamps
Adaptive ........................................... 71 6
Index

Rear window heating
Problem (fault) ............................... 135
Switching on/off ........................... 135
Rear window wiper
Replacing the wiper blad e.............. 126
Switching on/of f........................... 124
Rear-compartment seat belt sta-
tus indicator ........................................ 46
Rear-view mirror
Anti-dazzle mode (automatic) ........ 113
Dipping (manual) ........................... 112
Reflective safety vest ....................... 315
Refuelling
Fuel gaug e....................................... 34
Important safety notes .................. 163
Notes for Mercedes‑ AMG vehi-
cles ................................................ 354
Refuelling process ......................... 164
see Fuel
Remote control
Auxiliary heating/ventilation .......... 138
Changing the batteries (auxiliary
heating) ......................................... 140
Replacing bulbs
Brake lamp .................................... 123
Dipped-beam headlamp s............... 122
Fitting/removing the cover (front
wheel arch) .................................... 121
Important safety notes .................. 120
Main-beam headlamp s................... 122
Overview of bulb types .................. 121
Rear fog lamp ................................ 123
Turn signals (front) ......................... 122
Turn signals (rear) .......................... 123
Replacing the battery (auxiliary
heating remote control) .................... 140
Rescue card ......................................... 30
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 251
Warning lamp ................................. 272
Residual heat (climate control) ........ 137
Restraint system
Display message ............................ 243
Introduction ..................................... 41
Warning lamp ................................. 272 Warning lamp (function) ................... 42
Rev counter ........................................ 217
Reverse gear
Engaging (manual transmission) .... 153
Reverse gear (selector lever) ........... 156
Reversing camera
"Reverse parking" function ............ 202
Cleaning instructions ..................... 311
Coupling up a trailer function ........ 203
Display in the multimedia system .. 201
Function/note s............................. 200
General notes ................................ 200
Switching on/of f........................... 201
Reversing feature
Side windows ................................... 98
Tailgate ............................................ 89
Reversing function
Roller sunblind ............................... 103
Reversing lamps
Display message ............................ 247
Roller sunblind
Panorama sliding sunroo f.............. 103
Roof carrier ........................................ 296
Roof lining and carpets (cleaning
instructions) ...................................... 314
Roof load (maximum) ........................ 358
Route guidance
See also Digital Owner's Manua l... 277 S
Safety Children in the vehicle ..................... 56
see Occupant safety
Safety net
Attaching ....................................... 294
Important safety information ......... 294
Safety system
see Driving safety systems
SD card
Inserting ........................................ 286
Inserting/removing ........................ 286
Removing ....................................... 286
SD memory card
See also Digital Owner's Manua l... 277
Seat
Adjusting (Performance Seat) ........ 110
Correct driver's seat position ........ 106 18
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 luggage compartment. 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 78). 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 67).
The anti-theft alarm system is triggered if the
door is opened from the inside. Switch off the
alarm (Y page 76). Key functions
:
& Locks the vehicle
; F Opens the tailgate
= % Unlocks the vehicle
X To unlock centrally: press the%button. Key
79Opening and closing Z

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: press the &button.
The key centrally locks/unlocks:
R the doors
R the tailgate
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 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 229).
X To open the tailgate automatically from
outside the vehicle: press and hold theF
button until the tailgate opens (Y page 95).
Vehicles with KEYLESS-GO or KEYLESS-GO
start function: 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 (Y page 90).
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 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 on which the
handle 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 one metre.
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 while starting the engine
R while 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 clos-
ing feature (Y page 99). X
To unlock the tailgate: pull tailgate han-
dle :. 80
KeyOpening and closing

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 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 82) and replace if necessary
(Y page 82).
X Unlock (Y page 88) or lock (Y page 88) 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 88) or lock (Y page 88) the vehicle using the
emergency key element. The key is faulty.
X Unlock (Y page 88) or lock (Y page 88) 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 82) and replace if necessary
(Y page 82).
If this does not work: X Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element. There is interference from a powerful source of radio waves.
X Unlock (Y page 88) or lock (Y page 88) the vehicle using the
emergency key element. 84
KeyOpening and closing

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 88) or lock (Y page 88) 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 324).
or
X Jump-start the vehicle (Y page 325).
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 82) and replace if necessary
(Y page 82).
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. Key
85Opening and closing Z

Emergency release
General notes !
The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
You will find details on the tailgate opening
dimensions in the "Vehicle data" section
(Y page 358).
If the tailgate 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 tailgate.
You can reach the emergency release via the
luggage compartment.
Opening X
Fold the rear seat backrest forwards
(Y page 292).
X Take the emergency key element out of the
key (Y page 82).
X Insert emergency key element ;into open-
ing :in the trim and push it in.
X Open the tailgate.
X Insert the emergency key element into the
key (Y page 82). Boot
Important safety notes
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
lid is open when the engine is running, espe-
cially if the vehicle is in motion. There is a risk of poisoning.
Always switch off the engine before opening
the boot lid. Never drive with the boot lid
open. G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, especially when braking or abruptly changing directions.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
! The boot lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the boot lid.
You will find details on the boot lid opening
dimensions in the "Vehicle data" section
(Y page 358).
Stow luggage or loads preferably in the boot.
Observe the loading guidelines (Y page 288).
Do not leave the key in the boot. If you do so, you
could lock yourself out.
The boot lid can be:
R opened and closed manually from outside
R opened automatically from outside
R opened automatically from inside
R emergency released from the inside 94
BootOpening and closing

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 tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
You will find details on the tailgate opening
dimensions in the "Vehicle data" section
(Y page 358).
If the tailgate 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 tailgate.
You can reach the emergency release via the
luggage compartment. Opening X
Fold the rear seat backrest forwards
(Y page 292).
X Take the emergency key element out of the
key (Y page 82).
X Insert emergency key element ;into open-
ing :in the trim and push it in.
X Open the tailgate.
X Insert the emergency key element into the
key (Y page 82). Side windows
Important safety notes
G
WARNING
While opening the side windows, body parts
could become trapped between the side win- dow and the door frame as the side window
moves. There is a risk of injury.
Make sure that nobody touches the side win-
dow during the opening procedure. If some-
body becomes trapped, release the switch or pull the switch to close the side window again. G
WARNING
While closing the side windows, body parts in the closing area could become trapped. There is a risk of injury.
When closing make sure that no parts of the
body are in the closing area. If somebody
becomes trapped, release the switch or press
the switch to open the side window again. Side windows
97Opening and closing Z