2016 MERCEDES-BENZ S-Class COUPE key battery

Armrest
St owage compartment .................. 302
Asht ray.............................................. .306
Assistance display (on-board com-
puter) ..................................................2 43
Assistance menu (on-board com-
puter) ..................................................2 44
ASSYST PLUS
Displaying a service message ........3 30
Hiding a service message .............. 330
Resetting the service interval dis-
play ................................................ 330
Service message ............................ 330
Special service requirements ......... 331
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 78
Function ...........................................7 8
Switching off the alarm .................... 78
ATTENTION ASSIST
Activating/deactivating ................. 246
Display message ............................ 272
Function/notes ............................. 215
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 267
see Lights
Automatic car wash (care) ............... 331
Automatic engine start (ECO start/
stop function) .................................... 156
Automatic engine switch-off (ECO
start/stop function) .......................... 156
Automatic headlamp mode .............. 124
Automatic transmission
Accelerator pedal position ............. 162
Automatic drive program ............... 164
Changing gear ............................... 162
DIRECT SELECT lever ..................... 159
Display message ............................ 281
Driving tips .................................... 162
Emergency running mode .............. 167
Engaging drive position .................. 161
Engaging neutral ............................ 160
Engaging park position au tomati
-
cally ............................................... 159 Engaging reverse gear ................... 160
Engaging the park position ............ 159
Kickdown ....................................... 162
Manual drive program .................... 164
Manual drive program (Mercedes-
AMG vehicles) ................................ 165
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 249
Overview ........................................ 159
Problem (malfunction) ................... 167
Program selector button ................ 163
Pulling away ................................... 154
Starting the engine ........................ 153
Steering wheel paddle shifters ...... 163
Transmission position display ........ 161
Transmission positions .................. 162
Automatic transmission emer-
gency mode ....................................... 167
B
BAS (Brake Assist System) ................. 68
BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
Function/notes ................................ 69
Important safety notes .................... 69
Battery (SmartKey)
Checking .......................................... 86
Important safety notes .................... 85
Replacing ......................................... 86
Battery (vehicle)
Charging ........................................ 349
Display message ............................ 269
Important safety notes .................. 347
Jump starting ................................. 351
Belt
see Seat belts
Blind Spot Assist
see Active Blind Spot Assist
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 258
Notes ............................................. 403
Brake force distribution
see EBD (electronic brake force
distribution)
Index5

Securing cargo..................................3 03
Selector lever
Cleaning ......................................... 338
see Automatic transmission
Sensors (cleaning instructions) ....... 335
Service menu (on-board com-
puter) ..................................................2 43
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 403
Coolant (engine) ............................ 404
Engine oil ....................................... 403
Fuel ................................................ 401
Important safety notes .................. 400
Refrigerant (air-conditioning sys-
tem) ............................................... 405
Washer fluid ................................... 405
Settings
Factory (on-board computer) ......... 249
On-board computer ....................... 244
SETUP (on-board computer) ............. 250
Side impact air bag .............................5 2
Side marker lamp (display mes-
sage) ................................................... 267
Side windows
Cleaning ......................................... 335
Convenience closing feature ............ 99
Convenience opening feature ..........9 9
Important safety information ........... 97
Opening/closing .............................. 98
Problem (malfunction) ................... 101
Resetting ....................................... 100
Reversing feature .............................9 8
SmartKey
Changing the battery ....................... 86
Changing the programming .............8 4
Checking the battery ...................... .86
Convenience closing feature ............ 99
Convenience opening feature .......... 99
Dis play message ............................ 283
Door central loc king/
unlocking ......
.83
Important safety notes .................... 82
KEYLESS-GO start function .............. 84
Loss .................................................8 7
Mechanical key ................................ 85
Overview .......................................... 82 Positions (ignition lock) ................. 151
Problem (malfunction) ..................... 87
Starting the engine ........................ 153
Smartphone
Starting the engine ........................ 154
Snow chains ...................................... 365
Sockets
Center console .............................. 307
General notes ................................ 307
Rear compartment .........................3 07
Trunk ............................................. 308
Special seat belt retractor .................. 63
Specialist workshop ............................ 26
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional speedometer ........................ 248
Digital ............................................ 237
In the Instrument cluster ................. 33
Selecting the display unit ...............2 48
see Instrument cluster
Standing lamps
Display message ............................ 267
Switching on/off ........................... 125
Start/Stop button
General notes ................................ 151
Key positions ................................. 152
Removing ....................................... 153
Starting the engine ........................ 154
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 153
STEER CONTROL .................................. 77
Steering
Display message ............................ 283
Warning lamps ............................... 298
Steering Assist
see DISTRONIC PLUS
Steering Assist and Stop&Go Pilot
(DISTRONIC PLUS)
Display message ..................... ....... 278
Ste
ering assistant STEER CON-
TROL
see STEER CONTROL
Steering wheel
Adjusting (electrically) ................... 114
Index17

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: 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. Any-
one 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 star-
ted (yet the vehicle's battery is charged),
the system 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)
XTo arm: lock the vehicle with the SmartKey
or KEYLESS-GO.
Indicator lamp :flashes. The alarm sys-
tem is armed after approximately
10 seconds.
XTo disarm: 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 trunk lid
Rthe hood
XTo turn the alarm off with the SmartKey:
press the %or& button on the
SmartKey.
The alarm is switched off.
or
XRemove the Start/Stop button from the
ignition 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 Smart-
Key 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
vehicle.
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
system automatically notifies the Cus-
tomer Assistance Center. This is done
either by text message or data connection.
78Protection against theft
Safety

XTo unlock the vehicle:touch the inner
surface of the door handle.
XTo lock the vehicle: touch sensor sur-
face :or;.
Make sure that you do not touch the inner
surface of the door handle.
XConvenience closing feature: touch
recessed sensor surface ;for an exten-
ded period.
Further information on the convenience
closing feature (
Ypage 99).
Deactivating
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 of the SmartKey
flashes twice briefly and lights up once,
then KEYLESS-GO is deactivated .
XTo activate: press any button on the
SmartKey or insert the SmartKey into the
ignition lock.
KEYLESS-GO and all of its associated fea-
tures are available again.
KEYLESS-GO start function
Bear in mind that the engine can be started by
any of the vehicle occupants if there is a
SmartKey in the vehicle.
Changing the settings of the locking
system
You can change the settings of the locking
system. This means that only the driver's door
and the fuel filler flap are unlocked when the
vehicle is unlocked. This is useful if you fre-
quently travel on your own.
XTo change the setting: press and hold
down the %and& buttons simulta-
neously for approximately six seconds until
the battery check lamp flashes twice
(
Ypage 86).
iIf the setting of the locking system is
changed within the signal range of the vehi-
cle, pressing the &or% button:
Rlocks or
Runlocks the vehicle
The SmartKey now functions as follows:
XTo unlock the driver's door: press the
% button once.
XTo unlock centrally: press the%but-
ton twice.
XTo lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
XTo unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
XTo unlock centrally: touch the inner sur-
face of the front-passenger door handle.
XTo lock centrally: touch the outer sensor
surface on one of the door handles.
XTo restore the factory settings: press
and hold down the %and& buttons
simultaneously for app
roximately six sec-
84SmartKey
Opening and closing

onds until the battery check lamp flashes
twice (
Ypage 86).
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey or KEYLESS-GO,
use the mechanical key.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm
system will be triggered. Switch off the alarm
(
Ypage 78).
If you unlock the vehicle using the mechanical
key, the fuel filler flap will not be unlocked
automatically.
XTo unlock the fuel filler flap: insert the
SmartKey into the ignition lock.
Removing the mechanical key
XPush release catch :in the direction of
the arrow and at the same time remove
mechanical key ;from the SmartKey.
For further information about:
Runlocking the driver's door (Ypage 90)
Runlocking the trunk (Ypage 96)
Rlocking the vehicle (Ypage 91)
Inserting the mechanical key
XPush mechanical key ;completely into
the SmartKey until it engages and release
catch :is back in its basic position.
SmartKey battery
Important safety notes
GWARNING
Batteries contain toxic and corrosive substan- ces. If batteries are swallowed, it can result in
severe health problems. There is a risk of fatalinjury.
Keep batteries out of the reach of children. If
a battery is swallowed, seek medical attention
immediately.
HEnvironmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified spe-
cialist workshop or a special
collection point for used bat-
teries.
The SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. National
guidelines must be observed during disposal.
In California, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Mercedes-Benz recommends that you have
the batteries replaced at a qualified specialist
workshop.
SmartKey85
Opening and closing
Z

Checking the battery
XPress the&or% button.
The battery is working properly if battery
check lamp :lights up briefly.
The battery is discharged if battery check
lamp :does not light up briefly.
XChange the battery (Ypage 86).
iIf the SmartKey battery is checked within
the signal reception range of the vehicle,
pressing the &or% button:
Rlocks or
Runlocks the vehicle
iYou can get a battery at any qualified spe-
cialist workshop.
Replacing the battery
You require a CR 2025 3 V cell battery.
XTake the mechanical key out of the Smart-
Key (
Ypage 85).
XPress mechanical key ;into the opening
in the SmartKey in the direction of the
arrow until battery compartment cover :opens. Do not hold battery compartment
cover
:closed while doing so.
XRemove battery compartment cover :.
XRepeatedly tap the SmartKey against your
palm until battery=falls out.
XInsert the new battery with the positive ter-
minal facing upwards. Use a lint-free cloth
to do so.
XMake sure that the surface of the battery is
free of lint, grease and other contaminants.
XInsert the front tabs of battery compart-
ment cover :into the housing first and
then press to close it.
XInsert mechanical key ;into the Smart-
Key.
XCheck the function of all SmartKey buttons
on the vehicle.
86SmartKey
Opening and closing

Problems with the SmartKey
ProblemPossible causes/consequences andMSolutions
You can no longer lock
or unlock the vehicle
using the SmartKey.The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 86) and replace it if nec-
essary (
Ypage 86).
If this does not work:
XUnlock (Ypage 90) or lock (Ypage 91) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
XUnlock (Ypage 90) or lock (Ypage 91) the vehicle using the
mechanical key.
The SmartKey is faulty.
XUnlock (Ypage 90) or lock (Ypage 91) the vehicle using the
mechanical key.
XHave the SmartKey checked at a qualified specialist workshop.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO.KEYLESS-GO was deactivated.
XReactivate KEYLESS-GO (Ypage 83).
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 86) and replace it if nec-
essary (
Ypage 86).
If this does not work:
XUnlock (Ypage 90) or lock (Ypage 91) the vehicle using the
mechanical key.
There is interference from a powerful source of radio waves.
XUnlock (Ypage 90) or lock (Ypage 91) the vehicle using the
mechanical key.
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
control function:
XLock (Ypage 90) or unlock (Ypage 91) the vehicle using the
mechanical key.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
SmartKey87
Opening and closing
Z

ProblemPossible causes/consequences andMSolutions
The engine cannot be
started using the
SmartKey.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 349).
or
XJump-start the vehicle (Ypage 351).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The
SmartKey is in the vehi-
cle.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 86) and replace it if nec-
essary (
Ypage 86).
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 work-
shop.
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.
88SmartKey
Opening and closing