2016 MERCEDES-BENZ SL-Class Eco stop start

Occupant Classification System
(OCS)
Introduction
The Occupant Classification System (OCS)
categorizes the person in the front-passenger
seat. Depending on that result, the front-
passenger front air bag and front-passenger
knee bag are either enabled or deactivated.
The system does not deactivate:
Rthe side impact air bag
Rthe front-passenger head bag
Rthe Emergency Tensioning Devices
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 possi-
ble
If the front passenger does not observe these
conditions, OCS may produce a false classi-
fication, 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 you install a child restraint system on the
front-passenger seat, be sure to observe the
correct positioning of the child restraint sys-
tem. Never place objects under or behind the
child restraint system, e.g. cushions. 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 back- rest and the head restraint position accord-
ingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint
system manufacturer's installation instruc-
tions.
Occupant Classification System opera-
tion (OCS)
:PASSENGER AIR BAG OFF indicator lamp
;PASSENGER AIR BAG ON indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
XPress the Start/Stop button once or twice,
or turn the SmartKey to position 1or 2in
the ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and
PASSENGER AIR BAG ON indicator lamps
must light up simultaneously for approx-
imately six seconds.
The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up: the
front-passenger front air bag is enabled. If,
in the event of an accident, all deployment
criteria are met, the front-passenger front
air bag is deployed.
RPASSENGER AIR BAG OFF lights up: the
front-passenger front air bag is deactiva-
ted. It will then not be deployed in the event of an accident.
Occupant safety59
Safety
Z

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 prevail-
ing 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 automati-
cally when the driver wants to pull away again.
ESP
®remains in its previously selected sta-
tus. Example: if ESP®was deactivated before
the engine was switched off, ESP®remains
deactivated when the engine is switched on
again.
Deactivating/activating ESP®(except
Mercedes‑AMG vehicles)
Important safety notes
iObserve the "Important safety notes" sec-
tion (
Ypage 71).
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 fol-
lowing 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 vehi-
cle 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.
Deactivating/activating ESP
®
XTo deactivate: press button:.
The å ESP®OFF warning lamp in the
instrument cluster lights up.
XTo activate: press button :.
The å ESP®OFF warning lamp in the
instrument cluster goes out.
Characteristics when ESP
®is deactivated
If ESP
®is deactivated and one or more wheels
start to spin, the ÷ESP®warning lamp in
the instrument cluster flashes. In such situa-
tions, ESP
®will not stabilize the vehicle.
If you deactivate ESP
®:
RESP®no longer improves driving stability.
Rengine torque is no longer limited and the
drive wheels are able to spin.
The spinning of the wheels results in a cut-
ting action for better traction on loose sur-
faces.
Rtraction control is still activated.
RESP®still provides support when you brake
firmly.
Driving safety systems75
Safety
Z

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
15 seconds.
XTo deactivate: unlock the vehicle with the
SmartKey or KEYLESS-GO.
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
Rthe glove box
Rthe stowage space under the armrest
Ra stowage compartment in the rear
XTo turn the alarm off with the SmartKey:
press the %or& button on the
SmartKey.
The alarm is switched off.
or
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.
The emergency call system sends the mes-
sage or data provided that:
Ryou have subscribed to the mbrace ser-
vice.
Rthe mbrace service has been activated
properly.
Rthe necessary mobile phone network is
available.
80Protection against theft
Safety

XTo deactivate:press the&button on
the SmartKey twice in rapid succession.
The battery check lamp (
Ypage 85) 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.
Changing the settings of the locking
system
You can change the settings of the locking
system. This means only the driver's door, the
lockable stowage compartments in the vehi-
cle interior and the fuel filler flap are unlocked
when the vehicle is unlocked. This is useful if
you frequently travel on your own.
XTo change the setting: press and hold
down the %and& buttons simulta-
neously for about six seconds until the bat- tery indicator lamp flashes twice
(
Ypage 85).
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: 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& butto
ns
simultaneously for approximately six sec-
onds until the battery check lamp flashes
twice (
Ypage 85).
Mechanical key
General notes
If the vehicle can no longer be locked or
unlocked with the SmartKey, use the
mechanical key.
If you use the mechanical key to unlock and
open the driver's door or the trunk lid, the
anti-theft alarm system will be triggered
(
Ypage 80).
There are several ways to turn off the alarm:
XTo deactivate the alarm with the key:
press the %or& button on the key.
or
XInsert the SmartKey into the ignition lock.
or
XTo deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The SmartKey must be in the
vehicle.
or
XLock or unlock the vehicle using KEYLESS-
GO. The SmartKey must be outside the
vehicle.
84SmartKey
Opening and closing

ground and that there is sufficient clear-
ance to the rear of the vehicle. You could
otherwise lose your balance e.g. on ice.
RAlways ensure that you only make the kick-ing movement within the detection range of
sensors :.
RStand at least 12 in (30 cm) away from the
rear area while doing so.
RDo not come into contact with the bumper
while making the kicking movement. Oth-
erwise, the sensors may not function cor-
rectly.
RHANDS-FREE ACCESS does not function
when the engine is started.
RIf a KEYLESS-GO key is within the rear
detection range of KEYLESS-GO, HANDS-
FREE ACCESS could be triggered. The trunk
lid could thus be opened or closed unin-
tentionally, 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 situa-
tions similar to these. This will prevent the
unintentional opening/closing of the trunk.
RDirt caused by road salt around sensors :
may restrict functionality.
RUsing the HANDS-FREE ACCESS with a
prosthetic leg may restrict functionality.
Operation
XTo open/close: move your foot in sensor
detection range :using your leg.
You will hear a warning tone while the trunk
lid is opening or closing.
XIf the trunk lid does not open after sev-
eral attempts: wait at least ten seconds
then move your leg under the bumper once
again.
iIf 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:
Rmove your foot in sensor detection
range :under the bumper, or
Rpull the handle on the outside of the trunk
lid or
Rpress the closing button on the trunk lid, or
Rpull or press the remote operating switch
on the driver's door or
Rpress the Fbutton on the key
If the trunk lid closing procedure has been
stopped:
Rmove your foot under the bumper again and
the trunk lid will open
If the trunk lid opening procedure has been
stopped:
Rmove your foot under the bumper again and
the trunk lid will close
94Trunk
Opening and closing

Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!To avoid damaging the wiper blades,
make sure that you touch only the wiper
arm of the wiper.
!Never open the hood if a windshield wiper
arm has been folded away from the wind-
shield.
Never fold a windshield wiper arm without a
wiper blade back onto the windshield.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release
the windshield wiper arm without a wiper
blade and it falls onto the windshield, the
windshield may be damaged by the force of
the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified
specialist workshop.
!Always position the windshield wiper
arms vertically before folding them away
from the windshield. By doing so, you will
avoid damage to the hood.
Changing the windshield wiper blades
Moving the wiper arm to a vertical posi-
tion
On vehicles without KEYLESS-GO:
XTurn the SmartKey to position 1or 2in the
ignition lock.
XSet the windshield wiper to position °.
XWhen the wiper arms have reached the ver-
tical position, turn the SmartKey to position
0 and remove it from the ignition lock.
XFold the wiper arm away from the wind-
shield until it engages.
On vehicles with KEYLESS-GO:
XSwitch off the engine.
XRemove your foot from the brake pedal.
XSet the windshield wiper to the °posi-
tion.
XPress the Start/Stop button repeatedly
until the windshield wiper starts.
XWhen the wiper arms have reached a ver-
tical position, press the Start/Stop button.
XFold the wiper arm away from the wind-
shield until it engages.
Removing a wiper blade
XTo bring the wiper blade into position to
be removed: hold the wiper arm firmly with
one hand. With the other hand, turn the
wiper blade in the direction of arrow =
beyond the point of resistance.
The wiper blade engages in the removal
position with an audible click.
XTo remove a wiper blade: firmly press
release knob ;and pull the wiper blade
upwards :.
Windshield wipers131
Lights and windshield wipers
Z

RUse the ZONE function to adopt the tem-
perature settings on the driver's side for
the front-passenger side as well. The indi-
cator lamp in theábutton goes out.
RUse the residual heat function if you want to
heat or ventilate the vehicle interior when
the ignition is switched off. The residual
heat function can only be activated or deac-
tivated with the ignition switched off.
RVehicles with COMAND: if you change the
settings of the climate control system, the
climate status display appears for three
seconds at the bottom of the screen in the
COMAND display. See also the separate
COMAND operating instructions. You will
see the current settings of the various cli-
mate control functions.
ECO start/stop function
During automatic engine switch-off, the cli-
mate control only operates at a reduced capa-
city. If you require full climate control capa-
city, the ECO start/stop function can be
deactivated by pressing the ECO button
(
Ypage 156).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the
air supply and air circulation are also
switched off. The windows could fog up.
Therefore, switch off climate control only
briefly
iActivate climate control primarily using
the à button (
Ypage 141).
Activating or deactivating
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 151).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to
automatic mode.
or
XPress the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi- cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore,
deactivate the cooling with air-dehumidifica-
tion function only briefly.
The "Cooling with air dehumidification" func-
tion is only available when the engine is run-
ning. The air inside the vehicle is cooled and
dehumidified according to the temperature
selected.
Condensation may drip from the underside of
the vehicle when it is in cooling mode. This is
normal and not a sign that there is a malfunc-
tion.
Operating the climate control systems139
Climate control

KEYLESS-GO
Generalnotes
Vehicles wit hKEYLESS-GO are equipped wit h
a SmartKey featurin gan integrate dKEYLESS -
GO start function and adetachable Start /
Stop button.
The Start/Sto pbutto nmus tbe inserted in th e
ignition loc kand th eSmartKey mus tbe in th e
vehicle.
When you insert th eStart/Sto pbutto nint o
th eignition lock, th esystem needs approx -
imately two seconds recognition time. You
can then use th eStart/Sto pbutton.
Pressing th eStart/Sto pbutto nseveral times
in succession correspond sto th edifferen t
ke yposition sin th eignition lock. This is only
th ecas eif you are no tdepressing th ebrak e
pedal .
If you depress th ebrak epedal and press th e
Start/Sto pbutton, th eengin estart simmedi-
ately.
A chec kwhic hperiodically establishes aradi o
connection between th evehicl eand th e
SmartKey determine swhether avalid Smart -
Key is in th evehicle. This occurs, for example,
when starting th eengine.
To start th evehicl ewithout actively usin gth e
SmartKey:
Rth eStart/Sto pbutto nmus tbe inserted in
th eignition lock.
Rth eSmartKey mus tbe in th evehicle.
Rth evehicl emus tno tbe locke dwit hth e
Sma
rtKey or KEYLESS-GO (
Ypage 83).
Do no tkeep th eSmartKey:
Rwit helectronic devices, e.g. amobile
phone or another SmartKey.
Rwit hmetallic objects ,e.g. coins or metal
foil.
Rinside metallic objects ,e.g. ametal case.
This can impair th efunctionalit yof th eKEY-
LESS-GO key. If you loc
kth evehicl ewit hth eSmartKey' s
remot econtrol or wit hKEYLESS-GO ,after a
short time:
Ryou will no tbe able to switch on th eignition
wit hth eStart/Sto pbutton.
Ryou will no tbe able to start theengin ewit h
th eStart/Sto pbutto nuntil th evehicl eis
unlocke dagain .
iThe engin ecan be switched off while th e
vehicl eis in motion by pre ssing and holding
th eStart/Sto pbutto nfor three seconds.
This function operate sindependentl yof th e
ECO start/sto pautomatic engin eswitch -
off function .
Key positions wit hKEYLESS-G O
:Start/Stopbutto n
;Ignition loc k
As soo nas th eignition is switched on ,all th e
indicator lamp sin th ein strumen tcluste rligh t
up. Further information on situationswher e
an indicato rlamp either fails to go out after
startin gth eengin eor lights up while drivin g
(
Ypage 272).
If Start/Sto pbutto n: has no tyet been
pre ssed, this correspond sto th eke ybein g
remove dfrom th eignition .
XTo switch on th epower supply :press
Start/Sto pbutto n: once .
The powe rsuppl yis switched on .You can
no wactivat eth ewindshield wiper s,for
example.
152Driving
Driving and parking