2016 MERCEDES-BENZ SL-CLASS ROADSTER lights

Activatingordeactivating
XTurn th eSmartKey to position 2in th eigni-
tion loc k (
Ypage 151).
XPress th e¤ button.
The indicator lamp in th e¤ buttonlights
up or goes out .
Operating the climate control systems145
Climate control

Problems with the rear window defroster
ProblemPossible causes/consequences andMSolutions
The rear window
defroster has deactiva-
ted prematurely or can-
not be activated.The on-board voltage is too low because too many electrical con-
sumers are switched on.
XSwitch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again.
Switching air-recirculation mode
on/off
General notes
If you switch on air-recirculation mode, the
windows can fog up more quickly, in particu-
lar at low temperatures. Only use air-recircu-
lation mode briefly to prevent the windows
from fogging up.
Activating or deactivating
XTurn the SmartKey to position 2in the igni-
tion lock (
Ypage 151).
XTo activate: press thegbutton.
The indicator lamp in the gbutton lights
up.
iAir-recirculation mode is automatically
activated at high levels of pollution or at
high outside temperatures. When air-recir-
culation mode is activated automatically,
the indicator lamp in the gbutton is not lit. Outside air is added after about
30 minutes.
XTo deactivate:
press thegbutton.
The indicator lamp in the gbutton goes
out.
iAir-recirculation mode deactivates auto-
matically:
Rafter approximately five minutes at out-
side temperatures below approximately
41 ‡ (5 †)
Rafter approximately five minutes if cool-
ing with air dehumidification is deactiva-
ted
Rafter approximately 30 minutes at out-
side temperatures above approximately
41 ‡ (5 †) if the "Cooling with air dehu-
midification" function is activated
Switching the residual heat on or off
General notes
146Operating the climate control systems
Climate control

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

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

stop phase. When you depress the accel-
erator pedal, the engine starts automati-
cally and the braking effect of the HOLD
function is deactivated.
Automatic engine start
The engine starts automatically if:
Ryou switch off the ECO start/stop function
by pressing the ECO button
Rin transmission position Dor Nthe brake
pedal is released and the HOLD function is
not active
Ryou depress the accelerator pedal
Ryou engage reverse gear R.
Ryou move the transmission out of position
P
Ryou switch to drive program S,S+ orM
(Mercedes-AMG vehicles)
Ryou unfasten your seat belt or open the
driver's door
Rthe vehicle starts to roll
Rthe brake system requires this
Rthe temperature in the vehicle interior devi-
ates from the set range
Rthe system detects moisture on the wind-
shield when the air-conditioning system is
switched on
Rthe battery's condition of charge is too low
iShifting the transmission to position P
does not start the engine.
Deactivating or activating the ECO
start/stop function
All vehicles (except Mercedes-AMG vehi-
cles)
XTo deactivate: press ECO button :.
Indicator lamp ;goes out.
XTo activate: press ECO button :.
Indicator lamp ;lights up.
If the indicator lamp on the ECO button is off,
the ECO start/stop function has been deac-
tivated manually or as the result of a mal-
function.
Mercedes-AMG vehicles
XTo deactivate: in drive program C, press
ECO button :.
or
XSwitch to drive program S,S+ orM
(
Ypage 163).
Indicator lamp ;goes out.
XTo activate: press ECO button :.
Indicator lamp ;lights up.
156Driving
Driving and parking

Double-clutch function
Whenshiftin gdown ,th edouble-clutch func-
tion is active regardles sof th ecurrentl yselec -
te ddrive program. The double-clutch function
reduce sload chang ereaction sand is condu-
cive to asport ydrivin gstyle. The soun dgen -
erate dby th edouble-clutch function depend s
on th edrive program selected.
Kickdown
Use kickdown fo rmaximum acceleration .
XDepress theaccelerator peda lbeyond th e
pressure point.
The automatic transmissio nshift sto a
lowe rgear dependin gon th eengin espeed.
XEase of fth eaccelerator peda lonce th e
desire dspeed is reached.
The automatic transmissio nshift sbac kup.
Program selector butto n
Selecting drive program
Program selecto rbutto n: allow syou to
choos ebetween differen tdrivin gcharacter-
istics.
XPress program selecto rbutto n: repeat -
edly until th elette rfo rth edesire ddrive
program appears in th emultifunction dis -
play of th espeedometer.
RE Economy: comfortable, economical
drivin g
RSSport: sport ydrivin gstyle
RM Manual: manual gearshiftin g
iThe automatic transmissionshift sto
automatic drive program Eeac htime th e
engin eis started.
iFurther information about permanen t
drive program M(
Ypage 166).
As well as this permanen tdrive program M,
you can also activat etemporar ydrive pro -
gram M(
Ypage 165).
iFurther information on th e"Automatic
drive program" (
Ypage 164).
Drive program s(Mercedes-AMG vehi-
cles)
Wit hth edrive program selecto rswitch ,you
can choos efrom arange of differen ttrans -
missio nconfiguration sor selec tth eRAC E
START drive mode.
XTur ndrive program selecto r: until th e
desire ddrive program appears in th emul-
tifunction display.
The drive program indicator on th edrive
program selecto rlights up red .
RCControlle dEfficiency: comfortable
engin eand transmissio ndesign that pro -
vides fo roptimum fue lconsumption
RS Sport: sport yengin eand transmissio n
setting s
RS+SportPlus: especially sport yengin eand
transmissio nsetting s
RMManual: manual gearshiftin g
RRS drivingmode RACESTART :optimum
acceleration dynamic sfrom astandstill
(Mercedes-AMG SL 63 only)
Automatic transmission163
Driving and parking
Z

Applyingorreleasing manually
XTo engage: push handle :.
When th eelectric parking brak eis
engaged, th eF (USAonly) or !
(Canada only) red indicator lamp lights up
in th einstrumen tcluster.
iThe electric parking brak ecan also be
applie dwhen th eSmartKey is removed.
XTo release: switch on theignition .
XPull handle :.
The red F(USAonly) or !(Canada
only) indicator lamp in th einstrumen tclus -
te rgoes out .
iThe electric parking brak ecan only be
released:
Rif th eSmartKey is in position 1in th e
ignition loc k (
Ypage 151) or
Rif theignition was switched on usin gth e
Start/Sto pbutto n
Applying automatically
The electric parking brak eis applie dauto -
matically if:
RDISTRONI CPLU Sbrings th evehicl eto a
standstill or
Rth eHOLD function is keepin gth evehicl e
stationary
In addition ,at least on eof th efollowin gcon-
dition smus tbe fulfilled :
Rtheengin eis switched off .
Rthedriver' sseat belt is no tinserted in th e
belt buckl eand th edriver' sdoor is open .
Rthevehicl eis stationary for alengthy
period.
The red F(USAonly) or !(Canada
only) indicator lamp in th einstrumen tcluste r
lights up.
The electric parking brak eis no tautomati-
call yengage dif th eengin eis switched off by
th eECO start/sto pfunction .
Releasing automatically
The electric parking brak eis release dauto -
matically when all of th efollowin gcondition s
are fulfilled :
Rtheengin eis running.
Rth etransmission is in position Dor R.
Rth edriver' sseat belt is fastened.
Ryou depr esstheaccelerato rpedal.
If th etransmission is in position R,th etrunk
lid mus tbe closed.
If your seat belt is no tfastened, th efollowin g
condition smus tbe fulfilled to automatically
release th eelectric parking brake:
Rth edriver' sdoor is closed.
Ryou hav eshifte dout of Por you hav epre -
viously driven faste rthan 2mph (3 km/h).
En sure that you do no tdepress th eacceler -
ato rpedal unintentionally. Otherwise the
parking brak ewill be release dand th evehicl e
will start to move.
Eme rgency braking
The vehicl ecan also be braked during an
emergenc yby usin gth eelectric parking
brake.
XWhil edriving ,push handle :of th eelectric
parking brake.
iThe vehicl eis braked for as lon gas th e
handle of th eelectric parking brak eis
pre ssed. The longer th eelectric parking
Parking173
Driving and parking
Z

!Depressing the brake pedal constantly
results in excessive and premature wear to
the brake pads.
If the brakes have been subjected to a heavy
load, do not stop the vehicle immediately, but
drive on for a short while. This allows the air-
flow to cool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rain
without braking, there may be a delayed reac-
tion from the brakes when braking for the first
time. This may also occur after the vehicle has been washed or driven through deep water.
You then have to depress the brake pedal
more firmly. Maintain a greater distance from
the vehicle in front.
After driving on a wet road or having the vehi- cle washed, brake firmly while paying atten-
tion to the traffic conditions. This will warm up
the brake discs, thereby drying them more
quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
RBrake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!If the brake warning lamp lights up in the
instrument cluster and you hear a warning
tone even though the parking brake has
been released, the brake fluid level may be too low. Observe additional warning mes-
sages in the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immedi-
ately. This work should be carried out at a
qualified specialist workshop.
!As the ESP®system operates automati-
cally, the engine and the ignition system
must be switched off (SmartKey in position
0 or 1in the ignition lock or Start/Stop
button in position 0or 1) when:
Rtesting the parking brake on a brake
dynamometer.
Ryou intend to have the vehicle towed with
the front axle raised.
Braking maneuvers triggered automatically by ESP
®may seriously damage the brake
system.
All checks and maintenance work on the
brake system must be carried out at a quali-
fied specialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the function-
ality of your brakes at regular intervals.
Information on BAS (Brake Assist)
(
Ypage 72).
Mercedes-Benz recommends that you only
have brake pads/linings installed on your
vehicle which have been approved for
Mercedes-Benz vehicles or which correspond
to an equivalent quality standard. Brake
pads/linings which have not been approved
for Mercedes-Benz vehicles or which are not
of an equivalent quality could affect your vehi-
cle's operating safety.
Mercedes-Benz recommends that you only
use brake fluid that has been specially
approved for your vehicle by Mercedes-Benz,
or which corresponds to an equivalent quality
standard. Brake fluid which has not been
approved for Mercedes-Benz vehicles or
Driving tips177
Driving and parking
Z