2016 MERCEDES-BENZ SL-CLASS ROADSTER key battery

The residual heat function is only available on
vehicles for Canada.
It is possible to make use of the residual heat
of the engine to continue heating the station-
ary vehicle for up to 30 minutesafter the
engine has been switched off. The heating
time depends on the set interior temperature.
Activating or deactivating
XTurn the SmartKey to position0in the igni-
tion lock or remove it (
Ypage 151).
XTo activate: press theÌbutton.
The indicator lamp in the Ìbutton lights
up.
iThe blower will run at a low speed regard-
less of the airflow setting.
iIf you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
XTo deactivate: press theÌbutton.
The indicator lamp in the Ìbutton goes
out.
Residual heat is deactivated automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Setting the air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
GWARNING
When AIRSCARF is switched on, very hot air
can flow from the vents in the head restraints. This could result in burns in the immediate
vicinity of the air vents. There is a risk of injury.
Reduce the heater output before it becomes
too hot.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
Rkeep the air inlet grille on the hood and in
the engine compartment on the front-
passenger side free of blockages, such as
ice, snow or leaves.
Rnever cover the air vents or air intake grilles
in the vehicle interior.
iYou can move the adjusters for the air
vents vertically or horizontally to set the
direction of the airflow.
iFor optimal climate control in the vehicle,
open the air vents completely and set the
adjusters to the central position.
Setting the center air vents
XTo open the center air vents: turn the
adjuster in one of center air vents :coun-
ter-clockwise.
XTo close the center air vents: turn the
adjuster in one of center air vents :clock-
wise until it engages.
Setting the air vents147
Climate control
Z

Hill start assist is not active if:
Ryou are pulling away on a level road or on adownhill gradient.
Rthe transmission is in position N.
Rthe electric parking brake is applied.
RESP®is malfunctioning.
ECO start/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is stop-
ped under certain conditions.
The engine starts automatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
Important safety notes
GWARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes
:ECO start/stop display
The ECO start/stop function is activated
whenever you switch on the engine using the
SmartKey or the Start/Stop button.
If the engine has been switched off automat- ically by the ECO start/stop function, the è
ECO symbol is shown in the multifunc-
tion display.
Mercedes-AMG vehicles: the ECO start/
stop function is only available in drive pro-
gram C.
For further information on automatic engine
switch-off (
Ypage 155) and automatic
engine start (
Ypage 156).
Automatic engine switch-off
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
when:
Rthe indicator lamp in the ECO button is lit
green.
Rthe outside temperature is within the range that is suitable for the system.
Rthe engine is at normal operating temper-
ature.
Rthe set temperature for the vehicle interior
has been reached.
Rthe battery is sufficiently charged.
Rthe system detects that the windshield is
not fogged up when the air-conditioning
system is switched on.
Rthe hood is closed.
Rthe driver's door is closed and the driver's
seat belt is fastened.
iAll of the vehicle's systems remain active
when the engine is stopped automatically.
iAll vehicles (except Mercedes-AMG
vehicles): automatic engine switch-off can
take place a maximum of four times in a row
(initial stop, then three subsequent stops).
iMercedes-AMG vehicles: the number of
consecutive automatic engine switch-offs
is unlimited.
iThe HOLD function can be activated if the
engine has been switched off automati-
cally. It is then not necessary to continue
applying the brakes during the automatic
Driving155
Driving and parking
Z

Problems with the engine
ProblemPossible causes/consequences andMSolutions
The engine does not
start.The HOLD function or DISTRONIC PLUS is activated.
XDeactivate the HOLD function (Ypage 191) or DISTRONIC
PLUS (
Ypage 182).
XTry to start the engine again.
The engine does not
start. The starter motor
can be heard.RThere is a malfunction in the engine electronics.
RThere is a malfunction in the fuel supply.
Before attempting to start the engine again:
XTurn the SmartKey back to position 0in the ignition lock.
or
XPress the Start/Stop button repeatedly until all indicator lamps in the instrument cluster go out.
XTry to start the engine again (Ypage 153). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
XConsult a qualified specialist workshop.
The engine does not
start. You cannot hear
the starter motor.The on-board voltage is too low because the battery is too weak or
discharged.
XJump-start the vehicle (Ypage 559).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
XAllow the starter motor to cool down for approximately two
minutes.
XTry to start the engine again.
If the engine still does not start:
XConsult a qualified specialist workshop.
The engine is not run-
ning smoothly and is
misfiring.There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
XOnly depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
XHave the cause rectified immediately at a qualified specialist
workshop.
158Driving
Driving and parking

Display messagesPossible causes/consequences andMSolutions
Wiper Malfunction‐
ing
The windshield wipersare malfunctioning.
XVisit aqualified specialist workshop .
Hazard Warning
Flashers Malfunc‐
tioning
The hazard warnin glamp sare faulty.
XVisit aqualified specialist workshop .
SmartKey
Display messagesPossible causes/consequences and MSolutions
Â
Key DoesNot
Belong to Vehicl e
You haveput th ewrong SmartKey in th eignition lock.
XUse th ecorrec tSmartKey.
Â
Tak eYourKeyfrom
Ignition
The SmartKey is in th eignition lock.
XRemove th eSmartKey.
Â
Obtain aNew Key
The SmartKey needs to be replaced.
XVisit aqualified specialist workshop .
Â
ReplaceKeyBattery
The SmartKey battery is discharged.
XChange th ebattery (Ypage 86) .
Â
Don't Forget You r
Key
The SmartKey is notin th eignition lock. You hav eopened th e
driver's doo rwit hth eengin eswitched off.
The multifunction display shows th edisplay message amaximum
of 60 seconds and is simply areminder .
XTaketh eSmartKey wit hyou when you leav eth evehicle.
Â
Key Not Detected
(re ddisplay message )
The SmartKey is no tin th evehicle.
A warnin gtone also sounds.
If th eengin eis switched off, you can no longer loc kth evehicl e
centrall yor start th eengine.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 171).
XLocate th eSmartKey.
XPress aon thesteerin gwhee lto confirm th edisplay mes -
sage .
Display messages269
On-board computer and displays
Z

Call disconnection while the vehicle is
in motion
A call may be disconnected if:
Rthere is insufficient network coverage in
certain areas.
Ryou move from one transmitter/receiver
area (cell) into another and no channels are
free.
Ryou use a SIM card which is not compatible
with the network available.
Operating options
You can operate the telephone by:
Rusing the COMAND controller:
turn cVd
slide XVY orZVÆ
press W
Rusing the 6or~ button and using
the telephone keypad on COMAND
Rusing the 6or~ button on the mul-
tifunction steering wheel
Rusing the Voice Control System (see the
separate Voice Control System operating
instructions)
Unless stated otherwise, the descriptions and
illustrations in this section refer to COMAND.
Function restrictions
The telephone is not ready for use in the fol-
lowing situations:
RThe telephone automatically tries to log on
to a network. If no network is available, you
may not be able to make a "911 " emer-
gency call. If you attempt to make an out-
going call, the No Service
message will
appear for a short while.
"911" emergency call
The 911 emergency call is a public service.
Using it without due cause is a criminal
offense. The following requirements must be fulfilled
for a
911emergency call:
Rthe mobile phone must be switched on.
Ra network must be available.
Ra valid and operational SIM card must be
inserted in the mobile phone.
Rthe mobile phone is connected to COMAND
via Bluetooth®.
If you cannot make an emergency call, you
must arrange rescue measures yourself.
XEnter the number on COMAND
(
Ypage 389).
XPress 6.
The telephone makes the connection.
XWait until the emergency call center
answers and describe the emergency sit-
uation.
Telephony via the Bluetooth®inter-
face
Prerequisites
For telephony via COMAND's Bluetooth®
interface, a Bluetooth®-capable mobile
phone is required.
On COMAND
XActivate the Bluetooth®function in
COMAND (
Ypage 310).
On the mobile phone
XSwitch on the mobile phone and enter the
PIN when prompted to do so (see the
mobile phone operating instructions).
XActivate Bluetooth®functions and, where
necessary, Bluetooth®visibility on the
mobile phone (see the mobile phone oper-
ating instructions).
The battery of the mobile phone should
always be kept sufficiently charged in order to
prevent malfunctions.
382Telephone
COMAND

Rear-compartment screens
:AUX jacks, detailed view in the "CD/DVD drive and AUX jacks" section (Ypage 485).
;Display
Remote control
Overview
:Switches the screen on/off
;Switches the button lighting on/off
=Selects the screen for the remote control
?Selects a menu or menu item
AConfirms a selection or setting
BSwitches the sound on or off
CAdjusts the volume
DSkips to a track, fast-forward/fast-rewind
ESelects a track; direct entry
FExits a menu (back)
iTwo remote controls are supplied for the
US and Canadian markets.
Selecting the screen for the remote con-
trol
The remote control can be used to operate
one of the two rear-compartment screens or
SPLITVIEW for the front passenger. To do so, you must switch the remote control to the
desired screen (
Ypage 484).
XTo select the left-hand screen: turn thumb-
wheel =until " LREAR" is highlighted in the
window.
XTo select the right-hand screen: turn
thumbwheel =until " RREAR" is highligh-
ted in the window.
XTo select SPLITVIEW: turn thumbwheel =
until "SPLITVIEW" is highlighted in the win-
dow.
Switching the screen on/off
If the SmartKey is in position 0or 1in the
ignition lock (see vehicle Operator's Manual),
or if it is not in the ignition lock, the rear-com-
partment screens will switch off after
30 minutes. Before the screens switch off,
they show a message to this effect.
You can switch the screens back on. How-
ever, this will discharge the starter battery.
484Rear Seat Entertainment System
COMAND

Observe the legal requirements in all coun-
tries concerned.
XDo not use hot water and do not wash the
vehicle in direct sunlight.
XUse a soft sponge to clean.
XUse a mild cleaning agent, such as a car
shampoo approved by Mercedes-Benz.
XThoroughly hose down the vehicle with a
gentle jet of water.
XDo not point the water jet directly towardsthe air inlet.
XUse plenty of water and rinse out the
sponge frequently.
XRinse the vehicle with clean water and dry
thoroughly with a chamois.
XDo not let the cleaning agent dry on the
paintwork.
When using the vehicle in winter, remove all
traces of road salt deposits carefully and as
soon as possible.
Power washers
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Always maintain a distance of at least
11.8 in (30 cm) between the vehicle and the
power washer nozzle. Information about
the correct distance is available from the
equipment manufacturer.
Move the power washer nozzle around
when cleaning your vehicle.
Do not aim directly at any of the following:
Rtires
Rdoor gaps, roof gaps, joints, etc.
Relectrical components
Rbattery
Rconnectors
Rlights
Rseals
Rtrim
Rventilation slots
Damaged seals or electrical components
can lead to leaks or failures.
!Vehicles with HANDS-FREE ACCESS: if a
SmartKey with KEYLESS-GO is within the
detection range of the KEYLESS-GO
antenna, the following situations could lead
to the unintentional opening of the trunk
lid:
Rusing a car wash
Rusing a power washer
Make sure that the SmartKey is at least
6.5 ft (2 m) away from the vehicle.
!Mille Miglia special model: parts of your
vehicle are covered with a decorative foil.
Maintain a distance of at least 70 cm
between the foil-wrapped parts of the vehi-
cle and the nozzle of the power washer.
Information about the correct distance is
available from the equipment manufac-
turer.
Move the power washer nozzle around
when cleaning your vehicle.
Cleaning the paintwork
!Do not affix:
Rstickers
Rfilms
Rmagnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Scratches, corrosive deposits, areas affected
by corrosion and damage caused by inade-
quate care cannot always be completely
repaired. In such cases, visit a qualified spe-
cialist workshop.
Care543
Maintenance and care
Z

Before handling the battery, touch the vehicle
body to remove any existing electrostatic
build-up.
The highly flammable gas mixture forms when
charging the battery as well as when jump-
starting.
Always make sure that neither you nor the
battery is electrostatically charged. A build-
up of electrostatic charge can be caused, for
example:
Rby wearing clothing made from synthetic
fibers
Rdue to friction between clothing and seats
Rif you push or pull the battery across the
carpet or other synthetic materials
Rif you wipe the battery with a cloth
GWARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
RMake sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
RNever place metal objects or tools on a bat-
tery.
RIt is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
RIt is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
RNever connect or disconnect the battery
terminals while the engine is running.
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with plenty of clean water and seek medical atten-
tion.
HEnvironmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separatelyand 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.
!Have the battery checked regularly at a
qualified specialist workshop.
Observe the service intervals in the Main-
tenance Booklet or contact a qualified spe-
cialist workshop for more information.
!You should have all work involving the
battery carried out at a qualified specialist
workshop. In the exceptional case that it is
necessary for you to disconnect the battery
yourself, make sure that:
Ryou switch off the engine and remove the
SmartKey. On vehicles with KEYLESS-
GO, ensure that the ignition is switched
off. Check that all the indicator lamps in
the instrument cluster are off. Otherwise, electronic components, such as the
alternator, may be damaged.
Ryou first remove the negative terminal
clamp and then the positive terminal
clamp. Never swap the terminal clamps.
Otherwise, the vehicle's electronic sys-
tem may be damaged.
Rthe transmission is locked in position P
after disconnecting the battery. The vehi-
cle is secured against rolling away. You
can then no longer move the vehicle.
556Battery (vehicle)
Breakdown assistance