start stop button MERCEDES-BENZ S CLASS 2017 Owners Manual

Switching off (ATA) .......................... 76
Switching the function on/off
(ATA) ................................................ 76
Alarm system
see ATA (Anti-Theft Alarm system)
Anti-lock braking system
see ABS (Anti-lock Braking System)
Anti-Theft Alarm system
see ATA (Anti-Theft Alarm system)
Armrest
Stowage compartment .................. 283
Ashtray ............................................... 294
Assistance display (on-board com-
puter) .................................................. 221
Assistance menu (on-board com-
puter) .................................................. 221
ASSYST PLUS
Displaying a service message ........ 318
Hiding a service message .............. 318
Resetting the service interval dis-
play ................................................ 318
Service message ............................ 318
Special service requirements ......... 318
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 76
Function ........................................... 76
Switching off the alarm .................... 76
ATTENTION ASSIST
Activating/deactivating ................. 223
Display message ............................ 245
Function/notes ............................. 198
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 241
see Lights
Automatic car wash (care) ............... 319
Automatic engine start (ECO start/
stop function) .................................... 149
Automatic engine switch-off (ECO
start/stop function) .......................... 149
Automatic headlamp mode .............. 124
Automatic transmission
Accelerator pedal position ............. 155
Automatic drive program ............... 156 Changing gear ............................... 155
DIRECT SELECT lever ..................... 152
Display message ............................ 254
Drive program display .................... 154
Driving tips .................................... 155
Emergency running mode .............. 159
Engaging drive positi on .................. 153
Eng ag
ing neutral ............................ 153
Engaging park position automati-
cally ............................................... 152
Engaging reverse gear ................... 153
Engaging the park position ............ 152
Kickdown ....................................... 155
Manual drive program .................... 157
Manual drive program (Mercedes-
AMG vehicles) ................................ 158
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 226
Overview ........................................ 152
Problem (malfunction) ................... 159
Program selector button ................ 155
Pulling away ................................... 148
Starting the engine ........................ 147
Steering wheel paddle shifters ...... 156
Transmission position display ........ 154
Transmission positions .................. 154
Automatic transmission emer-
gency mode ....................................... 159
AUX (audio)
Notes/socket ................................ 279
B
Back button ....................................... 270
Backup lamp
Display message ............................ 241
Bag hook ............................................ 287
BAS (Brake Assist System) ................. 66
BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
Function/notes ................................ 67
BAS PLUS with Cross-Traffic Assist
(Brake Assist PLUS with Cross-
Traffic Assist)
Important safety notes .................... 67
Battery (SmartKey)
Checking .......................................... 80
Important safety notes .................... 80 Index 5

K Key positions
Sm artKey ...................................... .1 45
Start/Stop button .......................... 145
KEYLESS-GO
Activating ......................................... 78
Convenience closing feature ............ 92
Deactivation ..................................... 78
Locking ............................................ 78
Start function ................................... 79
Unlocking ......................................... 78
Kickdown
Driving tips ................................... .1 55
Knee bag .............................................. 49
L Lamps
see Warning and indicator lamps
Lane Keeping Assist
see Active Lane Keeping Assist
LATCH-type (ISOFIX) child seat
anchors ................................................ 61
License plate lamp (display mes-
sage) ................................................... 241
Light sensor (display message) ....... 241
Lights
Adaptive Highbeam Assist PLUS .... 126
Automatic headlamp mode ............ 124
Cornering light function ................. 126
Fogged up headlamps .................... 127
General notes ................................ 124
Hazard warning lamps ................... 126
High beam flasher .......................... 125
High-beam headlamps ................... 125
Light switch ................................... 124
Low-beam headlamps .................... 125
Parking lamps ................................ 125
Setting exterior lighting ................. 124
Standing lamps .............................. 125
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 225
Switching the spotlight on/off ....... 225
Turn signals ................................... 125
see Interior lighting
Loading guidelines ............................ 281 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 ............................ 241
Switching on/off .......................... .1 25
Lumbar support
Adjusting the 4-way lumbar sup-
port ................................................ 112
Luxury head restraints ..................... 110
M M+S tires ............................................ 345
Magic Body Control ........................... 180
MAGIC SKY CONTROL ......................... 97
Malfunction message
see Display messages
Matte finish (cleaning instruc-
tions) ................................................. .3 21
MBC
see Magic Body Control
mbrace
Call priority ................................... .3 04
Display message ............................ 233
Downloading destinations
(COMAND) ..................................... 304
Downloading routes ....................... 307
Emergency call .............................. 301
General notes ................................ 300
Geo fencing ................................... 307
Info call button .............................. 303
Locating a stolen vehicle .............. .3 06
Remote fault diagnosis .................. 306
Remote vehicle locking .................. 305
Roadside Assistance button .......... 302
Search & Send ............................... 304
Self-test ......................................... 301
Speed alert .................................... 307
System .......................................... 301
Triggering the vehicle alarm ........... 307
Vehicle remote unlocking .............. 305 Index 13

Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 269
Setting the language
see also Digital Operator's Man-
ual .................................................. 269
Setting the time
see also Digital Operator's Man-
ual .................................................. 269
Settings
Factory (on-board computer) ......... 226
On-board computer ....................... 221
SETUP (on-board computer) ............ .2 26
Side impact air bag ............................ .5 0
Side marker lamp (display mes-
sage) ................................................... 241
Side windows
Cleaning ......................................... 322
Convenience closing feature ............ 92
Convenience opening feature ......... .9 2
Important safety information ........... 90
Opening/closing .............................. 91
Problem (malfunction) .................... .9 3
Resettin g ........................................ .9 3
Reversin g feature ............................ .9 1
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 269
Skibag ................................................ 285
Sliding sunroof
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 80
Changing the programming ............ .7 9
Checking the battery ...................... .8 0
Convenience closing feature ............ 92
Convenience opening feature .......... 92
Dis play message ............ ... ............. 257
D
oor central locking/unlocking ...... .7 7
Important safety notes .................... 77
KEYLESS-GO start function .............. 79
Loss ................................................ .8 1
Mechanical key ................................ 79
Overview .......................................... 77
Positions (ignition lock) ................. 145
Problem (malfunction) ..................... 81
Starting the engine ........................ 147 Smartphone
Starting the engine ........................ 147
SMS
see also Digital Operator's Man-
ual .................................................. 269
Snow chains ...................................... 345
Sockets
Center console .............................. 296
General notes ................................ 296
Rear compartment ........................ .2 96
Trunk ............................................. 297
Sound
Switching on/off ........................... 270
Special seat belt retractor .................. 59
Specialist workshop ............................ 30
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 225
Digital ............................................ 215
In the Instrument cluster ................. 35
Segments ...................................... 210
Selecting the display unit .............. .2 25
Standing lamps
Display message ............................ 241
Switching on/off ........................... 125
Start/Stop button
General notes ................................ 145
Key positions ................................. 146
Removing ....................................... 146
Starting the engine ........................ 147
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 146
STEER CONTROL .................................. 75
Ste e
ring
Display message ............................ 257
Warning lamps ............................... 268
Steering Assist
see DISTRONIC PLUS
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Display message ............................ 250
Steering assistant STEER CON-
TROL
see STEER CONTROL Index 19

Panic alarm X
To arm: press 3 button C for approx-
imately one second.
A visual and audible alarm is triggered if the
alarm system is armed. X
To disarm: press 3 button C again.
or X
Insert the SmartKey into the ignition lock.
or X
Press 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.
The restraint system can also reduce the forces
to which vehicle occupants are subjected during
an accident.
The restraint system comprises: R
seat belt system R
air bags R
child restraint system R
child seat securing systems
The components of the restraint system work in
conjunction with each other. They can only
deploy their protective function if, at all times, all
vehicle occupants: R
have fastened their seat belts correctly
( Y
page 45)R
have adjusted their seat and head restraint
properly ( Y
page 100). As the driver, you also have to make sure that
the steering wheel is adjusted correctly.
Observe the information relating to the correct
driver's seat position ( Y
page 100).
You also have to make sure that an air bag can
inflate properly if deployed ( Y
page 48).
An air bag supplements a correctly worn 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, in the event of an accident, the protection
offered by the seat belt is sufficient, the air bags
are not deployed. When an accident occurs, only
the air bags that increase protection in that par-
ticular accident situation are deployed. How-
ever, 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 the Emergency
Tensioning Devices and air bags" ( Y
page 55).
For information on children traveling with you in
the vehicle and on child restraint systems, see
"Children in the vehicle" ( Y
page 59).
Important safety notes
G WARNING
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.
Never modify parts of the restraint system.
Never tamper with the wiring, the electronic
components or their software.
If it is necessary to modify components of the
restraint system to accommodate a person
with disabilities, contact an authorized
Mercedes-Benz Center for details. USA only:
for further information contact our Customer
Assistance Center at 1-800-FOR-MERCedes
(1 ‑ 800 ‑ 367 ‑ 6372).
Mercedes-Benz recommends that you only use
driving aids which have been approved specifi-
cally for your vehicle by Mercedes-Benz.42
Occupant safety
Safety

When using a child restraint system, always
ensure that the seat is correctly adjusted and
that the backrest is almost vertical.
If you install a child restraint system on the rear
reclining seat, always observe: R
the instructions and safety notes in "Children
in the vehicle" ( Y
page 59)R
the child restraint system manufacturer's
installation instructions
Occupant Classification System
(OCS)
Introduction The Occupant Classification System (OCS) cat-
egorizes the person in the front-passenger seat.
Depending on that result, the front-passenger
front air bag is either enabled or deactivated.
The system does not deactivate: R
the side impact air bag R
the window curtain air bag R
the Emergency Tensioning Devices
Requirements To be classified correctly, the front passenger
must sit: R
with the seat belt fastened correctly R
in an almost upright position with their back
against the seat backrest R
with 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: R
transfers their weight by supporting them-
selves on a vehicle armrest R
sits 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. a
cushion. Fully retract the seat cushion length.
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 and operating
instructions.
Occupant Classification System opera-
tion (OCS)
C
PASSENGER AIR BAG ON indicator lamp D
PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled. X
Press the Start/Stop button once or twice, or
turn the SmartKey to position 1 or 2 in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and PASSENGER
AIR BAG ON indicator lamps must light up simul-
taneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front air bag. R
PASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident. R
PASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicatorOccupant safety 51
Safety Z

i The immobilizer is always deactivated when
you start the engine.
In the event that the engine cannot be started
(yet the vehicle's battery is charged), the sys-
tem is not operational. Contact an authorized
Mercedes-Benz Center or call
1-800-FOR-MERCedes (in the USA) or
1-800-387-0100 (in Canada).
ATA (anti-theft alarm system) X
To arm: lock the vehicle with the SmartKey or
KEYLESS-GO.
Indicator lamp C flashes. The alarm system
is armed after approximately ten seconds. X
To disarm: unlock the vehicle with the Smart-
Key or KEYLESS-GO.
or X
Insert the SmartKey into the ignition lock.
or X
Press the Start/Stop button.
The SmartKey must be in the vehicle.
A visual and audible alarm is triggered if the
alarm system is armed and you open: R
a door R
the vehicle with the mechanical key R
the trunk lid R
the hood X
To stop the alarm with the SmartKey:
press the 6 or 7 button on the Smart-
Key.
The alarm is stopped.
or X
Remove the Start/Stop button from the igni-
tion lock. X
Insert the SmartKey into the ignition lock.
The alarm is stopped. X
To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The SmartKey
must be outside the vehicle.
The alarm is stopped.
or X
Press the Start/Stop button on the dash-
board. The SmartKey must be inside the vehi-
cle.
The alarm is stopped.
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 sys-
tem automatically notifies the Customer
Assistance Center. This is done either by text
message or data connection.
The emergency call system sends a message
or establishes a data connection provided
that: R
you have subscribed to the mbrace service. R
the mbrace service has been activated
properly. R
the necessary mobile phone network is
available.76
Protection against theft
Safety

SmartKey
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 PR
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.
G WARNING
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: R
with electronic devices, e.g. a mobile phone
or another SmartKey. R
with metallic objects, e.g. coins or metal foil. R
inside metallic objects, e.g. a metal case.
This can affect the functionality of the Smart-
Key. Do not keep the SmartKey in the temperature-
controlled cup holder ( Y
page 292). On vehicles
with the KEYLESS-GO start function, do not
keep it on the parcel shelf or in the trunk. Oth-
erwise, 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: R
when starting the engine R
while driving R
when using HANDS-FREE ACCESS R
when the external door handles are touched R
during convenience closing
SmartKey functions
C
7 Locks the vehicleD
T Opens/closes the trunk lid

Problem
Possible causes/consequences and P Solutions
KEYLESS-GO is malfunctioning. X
Lock/unlock the vehicle using the remote control function of the
SmartKey. X
Have 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: X
Lock or unlock the vehicle using the mechanical key ( Y
page 84).X
Have 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. 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 334).
or X
Jump-start the vehicle ( Y
page 335).
or X
Consult 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. X
Unlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged. X
Check the SmartKey battery ( Y
page 80) and replace it if necessary
( Y
page 80).
If this does not work: X
Start your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves. X
Start your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-
Key. X
Have the SmartKey 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
mechanical key. X
Report the loss immediately to the vehicle insurers. X
If necessary, have the locks changed as well.82
SmartKey
Opening and closing

Always switch off the engine before opening
the trunk lid. Never drive with the trunk lid
open.
! The trunk lid swings upwards when opened.
Therefore, make sure that there is sufficient
clearance above the trunk lid.
The opening dimensions of the trunk lid can be
found in the "Vehicle data" section
( Y
page 376).
Opening automatically You can open the trunk lid automatically using
the SmartKey or the handle in the trunk lid. X
Press and hold the T button on the Smart-
Key until the trunk lid opens.
or X
If the trunk lid is unlocked, pull the trunk lid
handle and let it go again immediately.
Closing automatically You can close the trunk lid automatically using
the SmartKey or the closing button in the trunk
lid.
X
Press closing button C on the trunk lid.
or X
If the SmartKey is located in the immediate
vicinity of the vehicle: press the T button
on the SmartKey.
You can release the button as soon as the
trunk lid starts to close. X
To stop the closing process: R
Press the T button on the SmartKey.R
Pull the handle in the trunk lid. R
Press closing button C or locking but-
ton D on the trunk lid. R
Press the remote operating switch on the
driver's door. R
In vehicles with HANDS-FREE ACCESS:
kick into the sensor detection range under
the bumper with your foot.
i If the T button on the SmartKey is
pressed or HANDS-FREE ACCESS is initiated
after the closing process is stopped, the trunk
lid opens.
Vehicles with trunk lid remote closing fea-
ture and KEYLESS-GO: when all the doors are
closed, you can simultaneously close the trunk
lid and lock the vehicle. The SmartKey must be
located to the rear of the vehicle. X
Press and release locking button D on the
trunk lid.
If a KEYLESS-GO key is detected outside the
vehicle, the trunk lid closes and the vehicle
locks.
If KEYLESS-GO detects a second SmartKey out-
side the vehicle, the trunk lid remains closed.
If KEYLESS-GO detects a SmartKey in the trunk,
the trunk lid opens again after it is closed.
HANDS-FREE ACCESS
Important safety notes
G WARNING
The vehicle's exhaust system may be very hot.
You could burn yourself by touching the
exhaust system if you use HANDS-FREE
ACCESS. There is a risk of injury. Always
ensure that you only make the kicking move-
ment within the detection range of sensors.
! If the SmartKey is within the rear detection
range of KEYLESS-GO, the following situa-
tions, for example, could lead to the uninten-
tional opening of the trunk: R
using a car wash R
using a power washer
Make sure that the SmartKey is at least 10 ft
(3 m) away from the vehicle.
General notes
With KEYLESS-GO and HANDS-FREE ACCESS,
you can open or close the trunk lid or stop the
procedure without using your hands. This is use- Trunk 87
Opening and closing Z

ful if you have your hands full. To do this, make
a kicking movement under the bumper with your
foot.
Observe the following points: R
Carry your KEYLESS-GO key about your per-
son. The KEYLESS-GO key must be in the rear
detection range of the vehicle. R
When making the kicking movement, make
sure that you are standing firmly on the
ground and that there is sufficient clearance
to the rear of the vehicle. You could otherwise
lose your balance, for example on ice.
R
Always ensure that you only make the kicking
movement within the detection range of sen-
sors C .R
Stand at least 12 in (30 cm) away from the
rear area while doing so. R
Do not come into contact with the bumper
while making the kicking movement. Other-
wise, the sensors may not function correctly. R
HANDS-FREE ACCESS does not function
when the engine is started. R
Dirt caused by road salt around sensors C
may restrict functionality. R
Using the HANDS-FREE ACCESS with a pros-
thetic leg may restrict functionality. R
If a KEYLESS-GO key is within the rear detec-
tion range of KEYLESS-GO, HANDS-FREE
ACCESS could be triggered. The trunk lid
could thus be opened or closed unintention-
ally, for example, if you: -
sit on the edge of the trunk. -
set something down or lift something up
behind the vehicle. -
polish the rear of the vehicle.
Do not carry the KEYLESS-GO key about your
person in these situations or in situations sim-
ilar to these. This will prevent unintentional
opening or closing of the trunk lid. Operation X
To open or close: kick into sensor detection
range C under the bumper with your foot.
A warning tone will sound while the trunk lid is
opening or closing. X
If the trunk lid does not open or close after
several attempts: wait at least ten seconds
then move your leg under the bumper once
again.
If you hold your foot under the bumper for too
long, the trunk lid does not open or close.
Repeat the leg movement more quickly if this
occurs.
To stop the opening or closing procedure, you
have the following options: R
Kick with your foot in sensor detection
range C under the bumper. R
Press the closing button on the trunk lid. R
Pull the handle on the outside of the trunk lid. R
Press the T button on the SmartKey
If the trunk lid closing procedure has been stop-
ped: R
move your foot under the bumper again and
the trunk lid will open
If the trunk lid opening procedure has been
stopped: R
move your foot under the bumper again and
the trunk lid will close88
Trunk
Opening and closing