
Light function, activeDisplay message ............................ 239
Light switch
Operation ...................................... .111
Lights
Adaptive Highbeam Assist ............. 113
Automatic headlamp mode ............ 111
Cornering light function ................. 113
Fogged up headlamps .................... 114
General notes ................................ 111
Hazard warning lamps ................... 113
High beam flasher .......................... 112
High-beam headlamps ................... 112
Light switch ................................... 111
Low-beam headlamps .................... 112
Parking lamps ................................ 112
Rear fog lamp ................................ 112
Setting exterior lighting ................. 111
Standing lamps .............................. 112
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 223
Turn signals ................................... 112
see Interior lighting
Loading guidelines ............................ 278
Locking
see Central locking
Locking (doors)
Automatic ........................................ 84
Emergency locking ........................... 84
From inside (central locking but-
ton) ..................................................8 3
Locking centrally
see Central locking
Low-beam headlamps
Display message ............................ 239
Replacing bulbs ............................ .116
Switching on/off ........................... 112
Lumbar support
Adjusting the 4-way lumbar sup-
port ................................................ 102
M
M+S tires ............................................ 338
Malfunction message
see Display messages Matte finish (cleaning instruc-
tions)
..................................................3 14
mbrace
Call priority ....................................2 98
Display message ............................ 233
Downloading destinations
(COMAND) ..................................... 299
Downloading routes ....................... 301
Emergency call .............................. 296
General notes ................................ 295
Geo fencing ................................... 302
Info call button .............................. 298
Locating a stolen vehicle ...............3 00
Remote fault diagnosis .................. 300
Remote vehicle locking .................. 300
Roadside assistance button ........... 297
Search & Send ............................... 299
Self-test ......................................... 296
Speed alert .................................... 301
System .......................................... 295
Triggering the vehicle alarm ........... 302
Vehicle remote unlocking .............. 300
Mechanical key
Function/notes ................................ 79
General notes .................................. 79
Inserting .......................................... 79
Locking vehicle ................................ 84
Removing ......................................... 79
Unlocking the driver's door .............. 84
Media Interface
see Digital Operator's Manual
Memory card (audio) ......................... 217
Memory function
Seats, steering wheel, exterior
mirrors ........................................... 109
Mercedes-Benz Intelligent Drive
360°camera .................................. 187
Active Blind Spot Assist ................. 197
Active Lane Keeping Assist ............ 200
Active Parking Assist ..................... 178
ATTENTION ASSIST ........................ 191
Blind Spot Assist ............................ 193
DISTRONIC PLUS ........................... 164
DISTRONIC PLUS with Steering
Assist and Stop&Go Pilot ............... 169
General notes ................................ 162
Lane Keeping Assist ...................... 195
PARKTRONIC ................................. 175
14Index 

Object detection (function/
notes) ............................................ 186
Switching on/off ........................... 183
Wide-angle function ....................... 186
Rear window defroster
Problem (malfunction) ...................1 27
Switching on/off ........................... 127
Rear window wiper
Replacing the wiper blade .............. 121
Switching on/off ........................... 120
Rear-view mirror
Dipping (automatic) ....................... 108
Recuperation display ........................ 213
Reflective safety jacket .................... 319
Refrigerant (air-conditioning sys-
tem)
Important safety notes .................. 369
Refueling
Fuel gauge ....................................... 36
Important safety notes .................. 148
Refueling process .......................... 149
see Fuel
Remote control
Garage door opener ....................... 302
Programming (garage door
opener) .......................................... 303
Replacing bulbs
Backup lamp .................................. 118
High-beam headlamps ................... 117
Important safety notes .................. 115
Installing/removing the cover
(front wheel arch) .......................... 117
Low-beam headlamps .................... 116
Opening/closing side trim panels. .118
Overview of bulb types .................. 116
Replacing front bulbs (vehicles
with halogen headlamps) ............... 116
Turn signals (front) ......................... 117
Reporting safety defects .................... 32
Rescue card ......................................... 32
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message ............................ 242
Warning lamp ................................. 263
Restraint system
Display message ............................ 235
Introduction ..................................... 43 Warning lamp ................................. 262
Warning lamp (function) ................... 44
Reversing feature
Panorama sliding sunroof ................ 94
Roller sunblinds ............................... 95
Side window s ................................... 90
T
ailgate ............................................ 85
Roadside Assistance (breakdown) .... 29
Roller sunblind
Operating ......................................... 96
Panorama roof with power tilt/
sliding panel ..................................... 95
Rear side windows ......................... 291
Resetting ......................................... 96
Roof carrier ........................................ 289
Roof lining and carpets (cleaning
guidelines) ......................................... 318
Roof load (maximum) ........................ 370
Route guidance
see also Digital Operator's Man-
ual .................................................. 268
Route guidance active ...................... 214
S
Safety
Children in the vehicle ..................... 59
see Occupant safety
see Operating safety
SD card
Inserting/removing ........................ 276
Selecting ........................................ 217
SD memory card
see also Digital Operator's Man-
ual .................................................. 268
Search & Send
see also Digital Operator's Man-
ual .................................................. 268
Seat
Correct driver's seat position ........... 98
Seat belts
Adjusting the driver's and front-
passenger seat belt ......................... 47
Adjusting the height ......................... 47
center rear-compartment seat ......... 47
Cleaning ......................................... 318
Correct usage .................................. 46
Fastening ......................................... 47
18Index 

SmartKey
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park position P
RStart 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.
GWARNING
If you attach heavy or large objects to the
SmartKey, the SmartKey could be uninten-
tionally 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
SmartKey. Remove any bulky key rings before
inserting the SmartKey into the ignition lock.
!Keep the SmartKey away from strong mag-
netic 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 SmartKey:
Rwith electronic devices, e.g. a mobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart- Key. Vehicles with KEYLESS-GO start function:
do
not keep the SmartKey in the cargo compart-
ment. Otherwise, the SmartKey may not be
detected, e.g. when starting the engine using
the Start/Stop button.
A brief radio connection between the vehicle
and the SmartKey determines whether a valid
SmartKey is in, or in the direct vicinity of, the
vehicle. This occurs, for example:
Rwhen starting the engine
Rwhile driving
Rwhen using HANDS-FREE ACCESS
Rwhen the external door handles are touched
Rduring convenience closing
SmartKey functions
:& Locks the vehicle
;FOpens/closes the tailgate
=%Unlocks the vehicle
XTo unlock centrally: press%button.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
Rthe vehicle is locked again.
Rprotection against theft is reactivated.
XTo lock centrally: press the&button.
The SmartKey centrally locks and unlocks the
following components:
Rthe doors
Rthe tailgate
Rthe fuel filler flap
The turn signals flash once when unlocking and
three times when locking.
You can also set an audible signal to confirm
that the vehicle has been locked. The audible
signal can be activated and deactivated via the
SmartKey77
Opening and closing
Z 

ProblemPossible causes/consequences andMSolutions
KEYLESS-GO is malfunctioning.
XLock/unlock the vehicle using the remote control function of the
SmartKey.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
XLock or unlock the vehicle using the mechanical key (Ypage 84).
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 327).
or
XJump-start the vehicle (Ypage 328).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 80) and replace it if necessary
(Ypage 80).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
82SmartKey
Opening and closing 

could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open.
GWARNING
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, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
!The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(
Ypage 370).
You can limit the opening angle of the tailgate
(
Ypage 89).
Do not leave the SmartKey in the cargo com-
partment. You could otherwise lock yourself
out.
You should preferably place luggage or loads in
the cargo compartment. Observe the loading
guidelines (
Ypage 278).
Tailgate obstruction detection with
reversing feature
Vehicles with remote tailgate closing:
The tailgate is equipped with automatic obstruc- tion detection with reversing feature. If a solid
object blocks or restricts the tailgate when auto-
matically opening, this procedure is stopped. If a
solid object blocks or restricts the tailgate when
automatically closing, the tailgate automatically
opens again slightly. The automatic obstruction
detection with reversing feature is only an aid. It
is not a substitute for your attentiveness when
opening and closing the tailgate.
GWARNING
The reversing feature does not respond:
Rto soft, light and thin objects, e.g. fingers
Rover the last Óin (8 mm) of the closing
movement
The reversing feature cannot prevent some-
one from becoming trapped in these situa-
tions in particular. There is a risk of injury.
Make sure that no body parts are in close
proximity during the closing procedure.
If somebody becomes trapped:
Rpress the Fbutton on the SmartKey, or
Rpull or press the remote operating switch
on the driver's door or
Rpress the closing or locking button on the
tailgate or
Rpull the handle on the tailgate
Vehicles with HANDS-FREE ACCESS:
It is also possible to stop the closing process by
performing a kicking movement under the rear
bumper.
Opening and closing manually
Opening
XPress the Fbutton on the SmartKey.
or
XPull handle :.
The tailgate opens.
Cargo compartment85
Opening and closing
Z 

Closing
XPull the tailgate down using recesses:and
push it closed.
XLock the vehicle if necessary with the &
button on the SmartKey or with KEYLESS-GO
(
Ypage 78).
Opening/closing automatically from
outside
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
could enter the passenger compartment.
There is a risk of poisoning.
Turn off the engine before opening the tail-
gate. Never drive with the tailgate open.
GWARNING
Parts of the body could become trapped dur-
ing automatic closing of the tailgate. More-
over, people, e.g. children, may be standing in the closing area or may enter the closing area
during the closing process. There is a risk of
injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process.
Use one of the following options to stop the
closing process:
Rpress the Fbutton on the SmartKey.
Rpull or press the remote operating switch
on the driver's door.
Rpress the closing or locking button on the
tailgate.
Rpull the handle on the tailgate
Vehicles with HANDS-FREE ACCESS:
It is also possible to stop the closing process by
performing a kicking movement under the rear
bumper.
!The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
Two warning tones sound while the tailgate is
opening or closing.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(
Ypage 370).
Opening automatically
You can open the tailgate automatically with the
SmartKey or the handle in the tailgate.
XPress and hold the Fbutton on the Smart-
Key until the tailgate opens.
or
XIf the tailgate is unlocked, pull the handle and
let it go again immediately.
or
XWith the tailgate stopped in an intermediate
position, pull the tailgate up.
You can release the tailgate as soon as the
tailgate starts to open.
86Cargo compartment
Opening and closing 

dren, during the closing procedure. There is a
risk of injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process.
Release the remote operating switch imme-
diately if somebody becomes trapped. To re-
open the tailgate pull on the remote operating
switch.
Vehicles with HANDS-FREE ACCESS:
It is also possible to stop the closing process by
performing a kicking movement under the rear
bumper.
!The tailgate swings upwards and to the rear
when opened. Therefore, make sure that
there is sufficient clearance above and behind
the tailgate.
Two warning tones sound while the tailgate is
opening or closing.
The opening dimensions of the tailgate can be
found in the "Vehicle data" section
(
Ypage 370).
Opening and closing
XTo open: pull remote operating switch :for
the tailgate until the tailgate opens.
XTo close: turn the SmartKey to position 1or
2 in the ignition lock.
XPress and hold remote operating switch for
tailgate :until the tailgate is completely
closed.
When the vehicle is stationary, you can close the
tailgate from the driver's seat. When the vehicle is also unlocked, you can also open the tailgate
from inside.
Limiting the opening angle of the tail-
gate
General notes
!Make sure there is sufficient clearance to
open the tailgate fully when setting the open-
ing angle. The tailgate could otherwise be
damaged. Ideally, set the opening angle out-
side.
You can limit the opening angle of the tailgate.
This is possible in the top half of its opening
range, up to approximately 8 in (20 cm) before
the stop.
To open the tailgate fully, pull the handle on the
outside of the tailgate again after it has stopped
automatically. This does not delete the stored
position.
Activating
XTo open the tailgate: pull the handle on the
tailgate.
XTo stop the opening procedure at the
desired position: press the closing button in
the tailgate or pull the handle on the outside
of the tailgate again.
XTo store the position: press and hold the
closing button in the tailgate until you hear a
short tone.
The opening angle limiter is activated. The
tailgate will now stop in the stored position
when opening.
Deactivating
XPress and hold the closing button on the tail-
gate until two short tones sound.
Unlocking the tailgate using the
mechanical key
General notes
Use the mechanical key if the tailgate can no
longer be unlocked:
Rusing the SmartKey
Rusing HANDS-FREE ACCESS
Rusing the remote operating switch on the door
control panel
Cargo compartment89
Opening and closing
Z 

!Do not warm up the engine with the vehicle
stationary. Drive off immediately. Avoid high
engine speeds and driving at full throttle until
the engine has reached its operating temper- ature.
Only shift the automatic transmission to the
desired drive position when the vehicle is sta-
tionary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery roads.
You could otherwise damage the drive train.
Key positions
SmartKey
gTo remove the SmartKey
1Power supply for some consumers, such as
the windshield wipers
2Ignition (power supply for all consumers)
and drive position
3To start the engine
iThe SmartKey can be turned in the ignition
lock even if it is not the correct SmartKey for
the vehicle. The ignition is not switched on.
The engine cannot be started.
Start/Stop button
General notes
When you insert the Start/Stop button into the
ignition lock, the system needs approximately
two seconds recognition time. You can then use
the Start/Stop button.
Pressing the Start/Stop button several times in
succession corresponds to the different Smart-
Key positions in the ignition lock. This is only the
case if you are not depressing the brake pedal. If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the Smart-
Key determines whether a valid SmartKey is in
the vehicle. This occurs, for example, when
starting the engine.
To start the vehicle without actively using the
SmartKey:
Rthe Start/Stop button must be inserted in the
ignition lock.
Rthe SmartKey must be in the vehicle.
Rthe vehicle must not be locked with the
SmartKey or KEYLESS-GO. (Ypage 78)
Do not keep the SmartKey:
Rwith electronic devices, e.g. a mobile phone
or another SmartKey.
Rwith metallic objects, e.g. coins or metal foil.
Rinside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart-
Key.
If you lock the vehicle with the SmartKey remote
control or with KEYLESS-GO, after a short time:
Ryou will not be able to switch on the ignition
with the Start/Stop button.
Ryou will no longer be able to start the engine
with the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the button
on the front door (
Ypage 83), you can continue
to start the engine with the Start/Stop button.
The engine can be switched off while the vehicle
is in motion by pressing and holding the Start/
Stop button for three seconds. This function
operates independently of the ECO start/stop
automatic engine switch-off function.
132Driving
Driving and parking