Instrument clusterOverview .......................................... 31
Warning and indicator lamps .......... .32
Instrument cluster lighting .............. 219
Interior lighting
Automatic control .......................... 113
Emergency lighting ........................ 113
Manual control .............................. .113
Overview ........................................ 112
Reading lamp ................................. 112
J
Jack
Storage location ............................ 315
Using ............................................. 353
Jump starting (engine) ......................323
K
Key positions
SmartKey ....................................... 134
Start/Stop button .......................... 134
KEYLESS-GO
Convenience closing feature ............ 87
Deactivation ..................................... 73
Display message ............................ 264
Locking ............................................ 73
Start function ................................... 74
Starting the engine ........................ 136
Unlocking ......................................... 73
Kickdown
Driving tips ....................................1 46
Manual gearshifting ....................... 149
Knee bag .............................................. 44
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 228
Display message ............................ 255
Function/information .................... 205
see Active Lane Keeping Assist
Lap time (RACETIMER) ...................... 232
LATCH-type (ISOFIX) child seat
anchors ................................................ 56
Level control (display message) ...... 253License plate lamp (display mes-
sage)
................................................... 247
Light function, active
Display message ............................ 248
Light sensor (display message) ....... 248
Lights
Adaptive Highbeam Assist ............. 111
Automatic headlamp mode ............ 108
Cornering light function ................. 111
Hazard warning lamps ................... 110
High beam flasher .......................... 110
High-beam headlamps ................... 110
Light switch ................................... 108
Low-beam headlamps .................... 109
Parking lamps ................................ 109
Rear fog lamp ................................ 109
Standing lamps .............................. 109
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 229
Turn signals ................................... 110
see Interior lighting
Loading guidelines ............................ 278
Locking
see Central locking
Locking (doors)
Automatic ........................................ 79
Emergency locking ........................... 80
From inside (central locking but-
ton) .................................................. 79
Locking centrally
see Central locking
Locking verification signal (on-
board computer) ............................... 230
Low-beam headlamps
Display message ............................ 246
Switching on/off ........................... 109
Lumbar support
Adjusting (on the seat) ..................... 98
Luxury head restraints ....................... 97
M
M+S tires............................................ 332
Malfunction message
see Display messages
Matte finish (cleaning instruc-
tions) .................................................. 309
Index11
Switching seat heating on/off ......... 98
Switching seat ventilation on/off .. 100
Section
Sliding sunroof ................................. 89
Selector lever
Cleaning ......................................... 313
Sensors (cleaning instructions) ....... 311
Service menu (on-board com-
puter) .................................................. 229
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 371
Coolant (engine) ............................ 372
DEF special additives ..................... 370
Engine oil ....................................... 370
Fuel ................................................ 368
Important safety notes .................. 367
Refrigerant (air-conditioning sys-
tem) ............................................... 373
Washer fluid ................................... 372
Setting the air distribution ............... 127
Setting the airflow ............................ 127
Settings
Factory (on-board computer) ......... 231
On-board computer ....................... 229
SETUP (on-board computer) ............. 232
Side impact air bag ............................. 45
Side marker lamp (display mes-
sage) ................................................... 247
Side windows
Cleaning ......................................... 310
Convenience closing feature ............ 87
Convenience opening feature .......... 86
Important safety information ........... 85
Opening/closing .............................. 86
Overview .......................................... 85
Problem (malfunction) ..................... 89
Resetting ......................................... 88
Reversing feature ............................. 85
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 75
Changing the programming ............. 74
Checking the battery ....................... 75 Convenience closing feature ............ 87
Convenience opening feature .......... 86
Display message ............................ 264
Door central locking/unlocking ....... 72
Important safety notes .................... 72
KEYLESS-GO start function .............. 74
Loss ................................................. 77
Mechanical key ................................ 74
Overview ..........................................
72
P
ositions (ignition lock) ................. 134
Problem (malfunction) ..................... 77
Starting the engine ........................ 136
Smartphone
Starting the engine ........................ 136
Snow chains
Information .................................... 333
Sockets
Center console .............................. 289
General notes ................................ 289
Luggage compartment ................... 289
Rear compartment ......................... 289
Special seat belt retractor .................. 54
Specialist workshop ............................ 26
Speed, controlling
see Cruise control
Speedometer
Digital ............................................ 223
In the Instrument cluster ................. 31
Segments ...................................... 219
Selecting the display unit ............... 229
Standing lamps
Display message ............................ 247
Switching on/off ........................... 109
Start/Stop button
Removing ....................................... 135
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 136
STEER CONTROL .................................. 70
Steering
Display message ............................ 263
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Activating/deactivating ................. 227
Display message ............................ 258
Steering assistant STEER CON-
TROL
see STEER CONTROL
16Index
Cockpit
FunctionPage
:Steering wheel paddle shift-
ers147
;Combination switch110
=Instrument cluster31
?Horn
ADIRECT SELECT lever142
BPARKTRONIC warning dis-
play186
COverhead control panel36
DClimate control systems118
EIgnition lock134
Start/Stop button134
FunctionPage
FAdjusts the steering wheel
manually101
GAdjusts the steering wheel
electrically101
Steering wheel heating102
HCruise control lever169
IOpens the hood302
JDiagnostics connection26
KElectric parking brake158
LLight switch108
30Cockpit
At a glance
Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops (Ypage 26).
Panic alarm
XTo activate: press the!button :for
approximately one second.
A visual and audible alarm is triggered if the
alarm system is armed.
XTo deactivate: press the!button :
again.
or
XInsert the SmartKey into the ignition lock.
or, on vehicles with KEYLESS ‑GO:
XPress the Start/Stop button.
The SmartKey must be in the vehicle.
Occupant safety
Introduction to the restraint system
The restraint system can reduce the risk of vehi-
cle occupants coming into contact with parts of
the vehicle's interior in the event of an accident.
Furthermore, the restraint system may also
reduce the forces exerted on the vehicle occu-
pants when an accident occurs. The restraint system includes:
RSeat belt system
RAir bags
RChild restraint system
RChild seat securing system
The components of the restraint system work in
conjunction with each other. They can only offer
the intended level of protection if all vehicle
occupants:
Rare correctly wearing their seat belts.
(Ypage 41)
Radjust their seat and head restraint properly
(Ypage 95).
The driver is also responsible for ensuring that
the steering wheel has been correctly posi-
tioned. Observe the information relating to the
correct driver's seat position (
Ypage 94).
Always ensure the air bag can inflate properly if
deployed (
Ypage 43).
An air bag supplements a correctly fastened
seat belt. As an additional safety device, the air
bag increases the level of protection for vehicle
occupants in the event of an accident. For exam-
ple, if the protection already provided by a cor-
rectly fastened seat belt will suffice, the air bags
are not deployed. Furthermore, only the air bags that would increase the degree of protection
afforded to the vehicle occupants in the event of
an accident are deployed. Seat belts and air
bags generally do not protect against objects
penetrating the vehicle from the outside.
Information on restraint system operation can
be found under "Triggering of Emergency Ten-
sioning Devices and air bags" (
Ypage 50).
See “Children in the vehicle” for information on
children traveling with you as well as vehicle
restraint systems (
Ypage 54).
Important safety notes
GWARNING
Modifications to the restraint system may
cause it to no longer work as intended. The
restraint system may then not perform its
intended protective function and may fail in an
accident or trigger unexpectedly, for example.
This poses an increased risk of injury or even fatal injury.
38Occupant safety
Safety
The system does not deactivate:
Rthe side impact air bag
Rthe window curtain air bag
Rthe Emergency Tensioning Devices
In the following situation, the side impact air bag and the Emergency Tensioning Device are deac-
tivated:
ROCS has not categorized the person on the
front-passenger seat as an adult or a person
of corresponding stature and
Rthe seat belt tongue of the seat belt is not
inserted into the front-passenger seat belt
buckle
Prerequisites
To be classified correctly, the front passenger
must sit:
Rwith the seat belt fastened correctly
Rin an almost upright position with their back
against the seat backrest
Rwith their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger:
Rtransfers their weight by supporting them-
selves on a vehicle armrest
Rsits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g.
cushions. The entire base of the child restraint
system must always rest on the seat cushion of the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as
flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation instructions.
Occupant Classification System opera-
tion (OCS)
:PASSENGER AIR BAG ON indicator lamp
;PASSENGER AIR BAG OFF indicator lamp
The indicator lamps indicate whether the front-
passenger front air bag is activated or deactiva- ted.
XPress the start/stop button once or twice, or
turn the SmartKey to position 1or 2in the
ignition lock.
The system carries out a self-diagnosis test.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps must light up simul-
taneously for about six seconds.
The indicator lamps then display the status of
the front-passenger front air bag:
RPASSENGER AIRBAG ON lights up: the front-
passenger front airbag is enabled. If, in the
case of an accident, all deployment criteria
are met, the front-passenger front air bag is
deployed.
RPASSENGER AIRBAG OFF lights up: the front-
passenger front airbag is disabled. It will then
not be deployed in the event of an accident.
If the status of the front-passenger front air bag changes whilst the vehicle is in motion, an air
bag display message may appear in the instru-
ment cluster (
Ypage 244). Always observe the
PASSENGER AIR BAG ON and PASSENGER AIR
BAG OFF indicator lamps when the front-
passenger seat is occupied. Make sure that the
status of the front-passenger front air bag is
correct before and during a journey.
GWARNING
If the PASSENGER AIR BAG OFF indicator
lamp is lit, the front-passenger front air bag is
disabled. It will not be deployed in the event of
an accident and cannot perform its intended
46Occupant safety
Safety
!Do not tow vehicles with 4MATIC with the
front or rear axle raised.
ESP
®is only deactivated if the åwarning
lamp is lit continuously.
If the ÷ warning lamp and the åwarning
lamp are lit continuously, ESP
®is not available
due to a malfunction.
Observe the information on warning lamps
(
Ypage 270) and display messages which may
be shown in the instrument cluster
(
Ypage 235).
iOnly use wheels with the recommended tire
sizes. Only then will ESP®function properly.
Characteristics of ESP®
General information
If the ÷ ESP warning lamp goes out before
beginning the journey, ESP®is automatically
active.
If ESP
®intervenes, the ÷ESP®warning lamp
flashes in the instrument cluster.
If ESP
®intervenes:
XDo not deactivate ESP®under any circum-
stances.
XOnly depress the accelerator pedal as far as
necessary when pulling away.
XAdapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle stops
moving. The engine starts automatically when
the driver wants to pull away again. ESP
®
remains in its previously selected status. Exam-
ple: if ESP®was deactivated before the engine
was switched off, ESP®remains deactivated
when the engine is switched on again.
Deactivating/activating ESP®
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 60). You can select between the following states of
ESP
®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®, ESP®no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
It may be best to deactivate ESP
®in the follow-
ing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
iActivate ESP®as soon as the situations
described above no longer apply. ESP®will
otherwise not be able to stabilize the vehicle if
the vehicle starts to skid or a wheel starts to
spin.
!Avoid spinning the driven wheels for an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
!Avoid spinning the driven wheels for an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
Deactivating/activating ESP®
ESP®OFF button (except Mercedes-AMG vehi-
cles)
66Driving safety systems
Safety
XTo arm:lock the vehicle with the SmartKey or
KEYLESS-GO.
Indicator lamp :flashes. The alarm system
is armed after approximately 15 seconds.
XTo deactivate: unlock the vehicle with the
SmartKey or KEYLESS-GO.
or
XInsert the SmartKey into the ignition lock.
A visual and audible alarm is triggered if the
alarm system is armed and you open:
Ra door
Rthe vehicle with the mechanical key
Rthe tailgate
Rthe hood
XTo switch the alarm off with the Smart-
Key: press the %or& button on the
SmartKey.
The alarm is switched off.
or
XRemove the Start/Stop button from the igni-
tion lock.
XInsert the SmartKey into the ignition lock.
The alarm is switched off.
XTo stop the alarm using KEYLESS-GO:
grasp the outside door handle. The SmartKey
must be outside the vehicle.
The alarm is switched off.
or
XPress the Start/Stop button on the dash-
board. The SmartKey must be inside the vehi- cle.
The alarm is switched off.
The alarm is not switched off, even if you close
the open door that triggered it, for example.
iIf the alarm continues for more than
30 seconds, the mbrace emergency call sys-
tem automatically notifies the Customer
Assistance Center. This is done either by text message or data connection. The emergency
call system sends the message or data pro vi-
d
ed that:
Ryou have subscribed to the mbrace service.
Rthe mbrace service has been activated
properly.
Rthe necessary mobile phone network is
available.
Protection against theft71
Safety
Z
Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops (Ypage 26).
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 theSmartKey. 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.
Do not keep the KEYLESS-GO or KEYLESS-GO
Start function key in the temperature-controlled
cup holder. Otherwise, the KEYLESS-GO or KEY-
LESS-GO Start function key will not be detected. 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.
SmartKey functions
:& Locks the vehicle
;FOpens/closes the tailgate
=%Unlocks the vehicle
XTo unlock centrally: press the%button.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
Rthe vehicle is locked again.
Ranti-theft protection is reactivated.
XTo lock centrally: press the&button.
72SmartKey
Opening and closing