2017 MERCEDES-BENZ S-Class CABRIOLET keyless

Adjusting (rear) ................................ 97
Head-up display
Adjusting the brightness ................ 201
Displays and operating .................. 190
Function/notes ............................. 189
Important safety notes .................. 189
Selecting displays .......................... 201
Setting the position ....................... 201
Storing settings (memory func-
tion) ............................................... 106
Headlamps
Fogging up ..................................... 110
see Automatic headlamp mode
Heating
see Climate control
High beam flasher ............................. 108
High-beam headlamps
Adaptive Highbeam Assist PLUS .... 109
Display message ............................ 216
Switching on/off ........................... 108
Hill start assist .................................. 127
HOLD function
Activating ....................................... 159
Activation conditions ..................... 158
Deactivating ................................... 159
Display message ............................ 224
Function/notes ............................. 158
General notes ................................ 158
Home address
see also Digital Operator's Man-
ual .................................................. 243
Hood
Closing ........................................... 273
Display message ............................ 229
Important safety notes .................. 272
Opening ......................................... 272
Horn ...................................................... 33
HUD
see Head-up display
Hydroplaning ..................................... 148
I
Ignition lock
see Key positions
Immobilizer .......................................... 70 Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 240
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 273
Instrument cluster
Overview .......................................... 34
Warning and indicator lamps ........... 34
Instrument cluster lighting .............. 187
Interior lighting
Automatic control .......................... 111
Control ........................................... 111
Manual control ............................... 111
Overview ........................................ 111
Reading lamp ................................. 111
iPod
®
see also Digital Operator's Man-
ual .................................................. 243
J
Jack Using ............................................. 322
Jump starting (engine) ...................... 294
K
Key positions
SmartKey ....................................... 124
Start/Stop button .......................... 124
KEYLESS-GO
Activating ......................................... 73
Convenience closing feature ............ 87
Deactivation ..................................... 73
Locking ............................................ 73
Start function ................................... 74
Unlocking ......................................... 73
Kickdown
Driving tips .................................... 134
Knee bag .............................................. 48
L
Lamps
see Warning and indicator lamps
12Index

SectionWheels and tires ............................3 02
Securing a load
see Securing cargo
Securing cargo .................................. 257
Selector lever
Cleaning ......................................... 286
see Automatic transmission
Sensors (cleaning instructions) ....... 284
Service menu (on-board com-
puter) ..................................................1 98
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 332
Coolant (engine) ............................ 332
Engine oil ....................................... 331
Fuel ................................................ 330
Important safety notes .................. 329
Refrigerant (air-conditioning sys-
tem) ............................................... 333
Washer fluid ................................... 333
Setting the date/time format
see also Digital Operator's Man-
ual ..................................................2 43
Setting the language
see also Digital Operator's Man-
ual ..................................................2 43
Setting the time
see also Digital Operator's Man-
ual ..................................................2 43
Settings
Factory (on-board computer) ......... 203
On-board computer ....................... 198
SETUP (on-board computer) ............. 203
Side impact air bag .............................4 8
Side marker lamp (display mes-
sage) ................................................... 216
Side windows
Cleaning ......................................... 283
Convenience closing feature ............ 87
Convenience opening feature ..........8 7
Important safety information ........... 85
Opening/closing .............................. 86
Opening/closing (all) ....................... 86
Problem (malfunction) .....................8 8
Resettin g........................................ .88 R
eversin
gfeature ............................ .85
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 243
SmartKey
Changing the battery ....................... 75
Changing the programming .............7 4
Checking the battery ...................... .75
Convenience closing feature ............ 87
Convenience opening feature .......... 87
Display message ............................ 231
Door central locking/unlocking ...... .72
Important safety notes .................... 72
KEYLESS-GO start function .............. 74
Loss .................................................7 6
Mechanical key ................................ 74
Opening/closing soft top ................. 90
Overview .......................................... 72
Positions (ignition lock) ................. 124
Problem (malfunction) ..................... 76
Starting the engine ........................ 126
Smartphone
Starting the engine ........................ 126
SMS
see also Digital Operator's Man-
ual .................................................. 243
Snow chains ...................................... 304
Sockets
Center console .............................. 260
General notes ................................ 260
Rear compartment .........................2 60
Trunk ............................................. 261
Soft top
AIRCAP ............................................ 91
Cleaning ......................................... 282
Display message ....... ..................... 230
Important sa

fety notes .................... 89
Opening/closing (SmartKey) ........... 90
Opening/closing (with soft-top
switch) ............................................. 90
Problem (malfunction) ..................... 92
Relocking ......................................... 91
Soft-top switch ....................................9 0
Sound
Switching on/off ........................... 244
Special seat belt retractor .................. 58
Specialist workshop ............................29
18Index

Function
XTo activate/deactivate:activateor deacti -
vat ePRE-SAF E®Brake in th eon-board com-
puter (Ypage 200).
If th ePRE-SAF E®Brake is no tactivated, th e
æ symbol appear sin th emultifunction dis-
play.
Starting at aspee dof aroun d 4mph (7 km/h),
this function warn syou if you rapidly approac h a
vehicl ein front. An intermittent warning tone
will then soun dand th e· distanc ewarning
lamp will ligh tup in th einstrumen tcluster.
XBrake immediately to defuse th esituation .
or
XTak eevasive action provide dit is saf eto do
so.
PRE-SAF E
®Brake can also brak eth evehicl e
automatically under th efollowin gconditions:
Rth edriver and fron tpassenger have their seat
belt sfastene d
Rthevehicl espee dis between approximately
4 mph (7 km/ h) and 124 mph (200 km/h)
At speeds of up to approximately 44 mph
(70 km/h) PRE-SAFE
®Brake can also detect:
Rstationary objects in the path of your vehicle,
e.g. stopped or parked vehicles
Rpedestrians in the path of your vehicle
iIf there is an increased risk of a collision,
preventive passenger protection measures
(PRE-SAFE
®) are triggered (Ypage 56).
If the risk of collision with the vehicle in front
remains and you do not brake, take evasive
action or accelerate significantly, the vehicle
may perform automatic emergency braking, up
to the point of ful l bra
ke application. Automatic
emergency braking is not performed until imme-
diately prior to an imminent accident.
You can prevent the intervention of the PRE-
SAFE
®Brake at any time by:
Rdepressing the accelerator pedal further.
Ractivating kickdown.
Rreleasing the brake pedal.
The braking action of PRE-SAFE®Brake is ended
automatically if:
Ryou maneuver to avoid the obstacle.
Rthere is no longer a risk of collision.
Rthere is no longer an obstacle detected in
front of your vehicle.
STEER CONTROL
General information
STEER CONTROL helps you by transmitting a
noticeable steering force to the steering wheel
in the direction required for vehicle stabilization.
This steering assistance is provided in particular
if:
Rboth right wheels or both left wheels are on a
wet or slippery road surface when you brake
Rthe vehicle starts to skid
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
No steering support is provided from STEER
CONTROL, if:
RESP®is deactivated
RESP®is malfunctioning
Rthe steering is faulty
Power steering will, however, continue to func-
tion.
Protection against theft
Immobilizer
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
XTo activate with the SmartKey: remove the
SmartKey from the ignition lock.
XTo activate with KEYLESS-GO start-func-
tion or KEYLESS-GO: switch the ignition off
and open the driver's door.
XTo deactivate: switch on the ignition.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Anyone can start the engine if a valid SmartKey has been
left inside the vehicle.
iThe 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).
70Protection against theft
Safety

ATA (anti-theft alarmsystem)
XTo arm: lockth evehicl ewit hth eSmartKey or
KEYLESS-GO .
Indicato rlamp :flashes .The alarm system
is armed after approximately te nseconds.
XTo disarm: unlockth evehicl ewit hth eSmart -
Key or KEYLESS-GO .
or
XInser tth eSmartKey int oth eignition lock.
or
XPress th eStart/Sto pbutton.
The SmartKey mus tbe in th evehicle.
A visual and audible alarm is triggered if th e
alarm system is armed and you open :
Radoor
Rth evehicl ewit hth emechanical ke y
Rthetrunk lid
Rth ehoo d
Rtheglov ebox
XTo stop th ealarm wit hth eSmartKey :
press th e% or& buttonon th eSmart -
Key.
The alarm is stopped.
or
XRemove th eStart/Sto pbutto nfrom th eigni-
tion lock.
XInser tth eSmartKey int oth eignition lock.
The alarm is stopped.
XTo stop th ealarm using KEYLESS-GO:
gras pth eoutside door handle. The SmartKey
mus tbe outside th evehicle.
The alarm is stopped.
or
XPress th eStart/Sto pbutto non th edash -
board. The SmartKey mus tbe inside th evehi-
cle .
The alarm is stopped. The alarm is no
tswitched off ,eve nif you close
th eopen door that triggered it ,for example.
iIf th ealarm continues for mor ethan
30 sec onds, th embrace emergenc ycall sys-
te m automatically notifie sth eCustome r
Assistance Center. This is don eeither by text
message or dat aconnection .
The emergenc ycall system sends amessage
or establishes adat aconnection provided
that:
Ryou hav esubscribed to th embrace service.
Rth embrace servic ehas been activated
properly.
Rth enecessar ymobile phone network is
available.
Protection against theft71
Safety
Z

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 on the parcel shelf or in
the trunk. 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 trunk lid
=%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.
The SmartKey centrally locks and unlocks the
following components:
Rthe doors
Rthe trunk lid
Rthe glove box
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
72SmartKey
Opening and closing

signal can be activated and deactivated via the
multimedia system; see the Digital Operator's
Manual.
You will receive visual and acoustic locking con-
firmation if all components were able to be
locked.
When the locator lighting is activated via the
multimedia system, it lights up when it is dark
after the vehicle is unlocked with the SmartKey;
see the Digital Operator's Manual.
XTo open the trunk lid automatically from
outside the vehicle:press and hold theF
button until the trunk lid opens.
KEYLESS-GO
General notes
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a Smart-
Key in the vehicle (
Ypage 126).
Locking/unlocking centrally
You can start, lock or unlock the vehicle using
KEYLESS-GO. To do this, you only need carry the
SmartKey with you. You can combine the func-
tions of KEYLESS-GO with those of a conven-
tional SmartKey. Unlock the vehicle by using
KEYLESS-GO, for instance, and lock it using the
& button on the SmartKey.
The driver's door and the door at which the han-
dle is used, must both be closed. The SmartKey
must be outside the vehicle. When locking or
unlocking with KEYLESS-GO, the distance
between the SmartKey and the corresponding
door handle must not be greater than 3 ft (1 m).
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
XTo unlock the vehicle: touch the inner sur-
face of the door handle.
XTo lock the vehicle: touch sensor surface :
or ;.
Make sure that you do not touch the inner
surface of the door handle.
XConvenience closing feature: touch
recessed sensor surface ;for an extended
period.
XTo open the trunk lid: push in the top of the
star on the trunk lid.
The trunk lid opens.
Deactivating and activating
If you do not intend to use a SmartKey for an
extended period of time, you can deactivate the
KEYLESS-GO function of the SmartKey. The
SmartKey will then use very little power, thereby
conserving battery power. For the purposes of
activation/deactivation, the vehicle must not be
nearby.
XTo deactivate: press the&button on the
SmartKey twice in rapid succession.
The battery check lamp (
Ypage 75) of the
SmartKey flashes twice briefly and lights up
once, then KEYLESS-GO is deactivated.
XTo activate: press any button on the Smart-
Key.
or
XInsert the SmartKey into the ignition lock.
KEYLESS-GO and all of its associated features
are available again.
SmartKey73
Opening and closing
Z

KEYLESS-GOstart function
Gene ral notes
Bear in min dthat th eengin ecan be started by
any of th evehicl eoccupant sif there is aSmart -
Key in th evehicl e (
Ypage 126).
Changing the settings ofthe locking
system
You can chang eth esetting sof th elocking sys-
tem. This mean sthat only th edriver's door and
th efuel filler flap are unlocke dwhen th evehicl e
is unlocked. This is useful if you frequentl ytravel
on your own .
XTo change th esetting: press and hold down
th e% and& buttons simultaneousl y
for approximately six seconds until th ebat -
tery chec klamp (
Ypage 75 )flashes twice .
If th esetting of th elocking system is changed
within th esignal range of th evehicle, pressing
th e& or% button:
Rlocks or
Runlocks th evehicl e
The SmartKey no wfunction sas follows :
XTo unlock: press the% buttononce .
XTo unlock centrally: press the% button
twice .
XTo lock: press the& button.
The KEYLESS-GO function scan be changed as
follows :
XTo unlock th edriver's door :touch th einner
surfac eof th edoor handle on th edriver's
door .
XTo unlock centrally: touch theinner surfac e
of th efront-passenger door handle.
XTo lock centrally: touch theouter sensor
surfac eon on eof th edoor handles .
XTo restoreth efactory settings: press and
hold th e% and& buttons simultane -
ousl yfor approximat
ely s
ix seconds until th e
battery chec klamp (Ypage 75) flashes
twice .
Mechanical key
Gene ral notes
If th evehicl ecan no longer be locke dor
unlocke dwit hth eSmartKey or KEYLESS-GO ,
use th emechanical key.
If you use th emechanical ke yto unloc kand
open th edriver's door ,th eanti-thef talarm sys-
te m will be triggered .Switc hoff th ealarm
(
Ypage 71) .
If you unloc kth evehicl eusin gth emechanical
key, th efuel filler flap will no tbe unlocke dauto -
matically.
XTo unlock th efuel filler flap: insert the
SmartKey int oth eignition lock.
Removing the mechanical key
XPush release catch :in th edirection of th e
arrow and at th esam etime remove mechan -
ical ke y; from th eSmartKey.
Fo rfurther information about :
RLocking/unlocking thedriver's door
(Ypage 79 )
RUnlocking th etrunk (Ypage 84 )
Inserting the mechanical key
XPush mechanical ke y; completely int oth e
SmartKey until it engage sand release
catch :is bac kin it sbasic position .
74SmartKey
Opening and closing

XRepeatedly tap theSmartKey against your
palm until battery =falls out .
XInsertth ene wbattery wit hth epositive ter-
minal facing upwards. Use alint-free cloth to
do so.
XMak esur ethat th esurfac eof th ebattery is
free of lint, grease and other contaminants.
XInser tth efron ttab sof battery compartmen t
cover :intoth ehousing first and then press
to close it .
XInsertmechanical ke y; intoth eSmartKey
(Ypage 74).
XChec kth efunction of all SmartKey buttons on
th evehicle.
Problems with the SmartKey
ProblemPossible causes/consequences and MSolutions
You can no longer lockor
unlock th evehicl eusin g
th eSmartKey.The SmartKey battery is discharged or nearly discharged.
XChec kth eSmartKey battery (Ypage 75) and replace it if necessar y
(Ypage 75).
If this does no twork:
XLoc kor unlock th evehicl eusin gth emechanical ke y (Ypage 79).
There is interferenc efrom apowerful source of radi owaves.
XLoc kor unlock th evehicl eusin gth emechanical ke y (Ypage 79).
The SmartKey is faulty.
XLockor unlock th evehicl eusin gth emechanical ke y (Ypage 79).
XHaveth eSmartKey checke dat aqualified specialist workshop.
You can no longer loc kor
unlock th evehicl eusin g
KEYLESS-GO .KEYLESS-GO was deactivated.
XReactivateKEYLESS-GO (Ypage 73).
The SmartKey battery is discharged or nearly discharged.
XCheckth eSmartKey battery (Ypage 75) and replace it if necessar y
(Ypage 75).
If this does no twork:
XLoc kor unlock th evehicl eusin gth emechanical ke y (Ypage 79).
There is interferenc efrom apowerful source of radi owaves.
XLoc kor unlock th evehicl eusin gth emechanical ke y (Ypage 79).
76SmartKey
Opening and closing