warning MERCEDES-BENZ SL CLASS 2019 Manual PDF

Switching the seat heating on/off
Switching on/off
GWARNING
Repeatedly switching on the seat heating
can cause the seat cushion and backrest
pads to become very hot. The health of per-
sons with limited temperature sensitivity or
a limited ability to react to high tempera-
tures may be affected or they may even suf-
fer burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
!When the seat heating is switched on, theseat surface can be damaged as a result ofobjects being placed on the seats, for exam-ple, seat cushions, child seats and protec-tive covers not approved by Mercedes-Benz.
Ensure that there are no objects on the seatsurface when the seat heating is switchedon.
Driver's and front-passenger seat
The three red indicator lamps in the buttonindicate the heating level you have selected.
The system automatically switches down fromlevel3to level2after approximately eightminutes.
The system automatically switches down fromlevel2to level1after approximately tenminutes.
The system automatically switches off approx-imately 20 minutes after it is set to level1.
XMake sure that the SmartKey is in positionGorHin the ignition lock.
XTo switch on:press buttonCrepeatedlyuntil the desired heating level is set.
XTo switch off:press buttonCrepeatedlyuntil all the indicator lamps go out.
iIf the battery voltage is too low, the seatheating may switch off.
Problems with the seat heating
ProblemPossible causes/consequences andPPSolutions
The seat heating hasswitched off prema-turely or cannot beswitched on. The vehi-cle's electrical systemvoltage is too lowbecause too many elec-trical consumers areswitched on.
Switch off electrical consumers that you do not need, such as therear window defroster or interior lighting.
Once the battery is sufficiently charged, switch on the seat heatingagain.
Seats101
Seats, steering wheel and mirrors
Z

Switching the seat ventilation on/off
Switching on/off
The three blue indicator lamps in the buttonsindicate the blower setting you have selected.
XEnsure that the SmartKey is in positionHin the ignition lock.
XTo switch on:press buttonCrepeatedlyuntil the desired blower setting is set.
XTo switch off:press buttonCrepeatedlyuntil all the indicator lamps go out.
iIf the battery voltage is too low, the seatventilation may switch off.
iIf you open the roof using the SmartKey(Ypage 92), the driver's seat ventilation isautomatically switched on and the side win-dows open.
Problems with the seat ventilation
The seat ventilation has switched off prema-turely or cannot be switched on. The vehicle'selectrical system voltage is too low becausetoo many electrical consumers are switchedon.
XSwitch off electrical consumers that you donot need, such as the rear window defrosteror interior lighting.
XOnce the battery is sufficiently charged,switch on the seat heating again.
AIRSCARF
Setting head level heating (AIRSCARF)
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.
The AIRSCARF function warms the head andneck area of vehicle occupants with warm air.The warm air flows out of the holes in the headrestraints.
The three red indicator lamps in the buttonindicate the heating level you have selected.
XEnsure that the SmartKey is in positionHin the ignition lock.
XTo switch on:press buttonC.Three red indicator lamps in the button lightup. The blower starts up after a preheatingphase of seven seconds.
XPress buttonCrepeatedly until the desiredheating level is set.
XTo switch off:press buttonCrepeatedlyuntil all the indicator lamps go out.
iThe blower continues running for sevenseconds to cool down the heating elements.
iIf the battery voltage is too low, AIRSCARFmay switch off.
102Seats
Seats, steering wheel and mirrors

Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you
do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
Never leave children unsupervised in the
vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. This
also applies for the Digital Vehicle Key if the
"Digital Vehicle Key" function is activated via
Mercedes me connect.
The electrically adjustable steering wheel canstill be adjusted when there is no SmartKey inthe ignition lock.
Adjusting the steering wheel electri-
cally
CAdjusts the steering wheel height
DAdjusts the steering wheel position (fore-and-aft adjustment)
iFurther related subjects:
REASY-ENTRY/EXIT feature (Ypage 103)
RStoring settings (Ypage 107)
EASY-ENTRY/EXIT feature
Important safety notes
GWARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could
lose control of the vehicle. There is a risk of
an accident.
Always wait until the adjustment process is
complete before driving off.
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Steering wheel103
Seats, steering wheel and mirrors
Z

If somebody becomes trapped:
Rpress one of the memory function posi-
tion buttons, or
Rmove the switch for steering wheel
adjustment in the opposite direction to
that in which the steering wheel is mov-
ing.
The adjustment process is stopped.
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the seat and
the steering wheel.
If somebody becomes trapped:
Rpress one of the memory function posi-
tion buttons, or
Rpress one of the memory function mem-
ory buttons, or
Rmove the switch for steering wheel
adjustment in the opposite direction to
that in which the steering wheel is moving
The adjustment process is stopped.
GWARNING
If you use openings in the bodywork or
detachable parts as steps, you could:
Rslip and/or fall
Rdamage the vehicle and cause yourself to
fall.
There is a risk of injury.
Always use secure climbing aids, e.g. a suit-
able ladder.
The EASY-ENTRY/EXIT feature makes gettingin and out of your vehicle easier.
You can activate and deactivate the EASY-ENTRY/EXIT feature in the on-board computer(Ypage 201).
Position of the steering wheel when
the EASY-ENTRY/EXIT feature is active
The steering wheel swings up when you:
Rremove the SmartKey from the ignition lock
Ropen the driver's door with KEYLESS-GO inposition1
Ropen the driver's door and the SmartKey isin position

Mirrors
Exterior mirrors
Adjusting the exterior mirrors
GWARNING
You could lose control of your vehicle if you
do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine.
GWARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an
accident.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.
XMake sure that the SmartKey is in positionGorHin the ignition lock.
XPress buttonCfor the left exterior mirroror buttonDfor the right exterior mirror.The indicator lamp in the corresponding but-ton lights up in red.
The indicator lamp goes out again aftersome time. You can adjust the selected
exterior mirror using button

Automatic anti-glare mirrors
GWARNING
Electrolyte may escape if the glass in an
automatic anti-glare mirror breaks. The elec-
trolyte is harmful and causes irritation. It
must not come into contact with your skin,
eyes, respiratory organs or clothing or be
swallowed. There is a risk of injury.
If you come into contact with the electro-
lyte, observe the following:
RRinse off the electrolyte from your skin
immediately with water.
RImmediately rinse the electrolyte out of
your eyes thoroughly with clean water.
RIf the electrolyte is swallowed, immedi-
ately rinse your mouth out thoroughly. Do
not induce vomiting.
RIf electrolyte comes into contact with your
skin or hair or is swallowed, seek medical
attention immediately.
RImmediately change out of clothing which
has come into contact with electrolyte.
RIf an allergic reaction occurs, seek medi-
cal attention immediately.
The rear-view mirror and the exterior mirror onthe driver's side automatically go into anti-glare mode if the following conditions are metsimultaneously:
Rthe ignition is switched on and
Rincident light from headlamps strikes thesensor in the rear-view mirror
The mirrors do not go into anti-glare mode ifreverse gear is engaged or if the interior light-ing is switched on.
Parking position for the exterior mir-
ror on the front-passenger side
Setting and storing the parking posi-
tion
Using the memory button
You can store the parking position of the front-passenger-side exterior mirror using memorybuttonM

When the engine is running, the vehicle is sta-tionary and in bright ambient light: if you turnthe light switch to the`position, the day-time running lamps and parking lamps switchon.
If the engine is running and you turn the lightswitch toX, the manual settings take prec-edence over the daytime running lamps.
USA only:
The daytime running lamps improve the visibil-ity of your vehicle during the day. To do this,the daytime running lamps function must beswitched on using the on-board computer(Ypage 200).
If the engine is running and you turn the lightswitch to`orX, the manual settingstake precedence over the daytime runninglamps.
Low-beam headlamps
GWARNING
When the light switch is set toX, the
low-beam headlamps may not be switched
on automatically if there is fog, snow or
other causes of poor visibility due to the
weather conditions such as spray. There is a
risk of an accident.
In such situations, turn the light switch to
X.
Even if the light sensor does not detect that itis dark, the parking lamps and low-beam head-lamps switch on when the ignition is switchedon and the light switch is set to theXposi-tion. This is a particularly useful function in theevent of rain and fog.
XTo switch on the low-beam headlamps:turn the SmartKey to positionHin the igni-tion lock or start the engine.
XTurn the light switch toX.The greenXindicator lamp in the instru-ment cluster lights up.
Parking lamps
!If the battery charge is very low, the park-ing lamps or standing lamps are automati-cally switched off to enable the next enginestart. Always park your vehicle safely and ina well lit area, in accordance with the rele-vant legal stipulations. Avoid using the`parking lamps over a period of several
hours. If possible, switch on the right-handdor left-handcstanding lamps.
XTo switch on:turn the light switch to`.The green`indicator lamp in the instru-ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures thecorresponding side of the vehicle is illumina-ted.
XTo switch on the standing lamps:theSmartKey is not in the ignition lock or it is inposition

The blueWindicator lamp in the instru-ment cluster lights up when the high-beamheadlamps are switched on.
XTo switch off the high-beam headlamps:move the combination switch back to itsnormal position.The blueWindicator lamp in the instru-ment cluster goes out.
Hazard warning lamps
XTo switch on the hazard warning lamps:press buttonC.All turn signals flash. If you now switch on aturn signal using the combination switch,only the turn signal lamp on the correspond-ing side of the vehicle will flash.
XTo switch off the hazard warning lamps:press buttonC.
The hazard warning lamps automaticallyswitch on if:
Ran air bag is deployed or
Rthe vehicle decelerates rapidly from a speedof above 45 mph (70 km/h) and comes to astandstill
The hazard warning lamps switch off automati-cally if the vehicle reaches a speed of above6 mph (10 km/h) again after a full brake appli-cation.
iThe hazard warning lamps still operate ifthe ignition is switched off.
Cornering light function
The cornering light function improves the illu-mination of the road over a wide angle in thedirection you are turning, enabling better visi-bility in tight bends, for example. The corner-
ing light function can only be activated whenthe low-beam headlamps are switched on.
Active:
Rif you are driving at speeds below 25 mph(40 km/h) and switch on the turn signal orturn the steering wheel
Rif you are driving at speeds between 25 mph(40 km/h) and 45 mph (70 km/h) and turnthe steering wheel
The cornering lamp may remain lit for a shorttime, but is automatically switched off after nomore than three minutes.
Cornering light function with traffic circlefunction:
The cornering light function is activated onboth sides before entering a traffic circlethrough an evaluation of the current GPS posi-tion of the vehicle. It remains active until afterthe vehicle has left the traffic circle. In thisway, pedestrians crossing the road, for exam-ple, are illuminated by your vehicle in goodtime.
Active light function
The active light function is a system thatmoves the headlamps according to the steer-ing movements of the front wheels. In thisway, relevant areas remain illuminated whiledriving. This allows you to recognize pedes-trians, cyclists and animals sooner.
Active:when the lights are switched on.
Vehicles with Lane Keeping Assist: the activelight function evaluates the course of the lanein which you are driving and pre-emptivelycontrols the active light function.
Adaptive Highbeam Assist
General notes
You can use this function to set the headlampsto change between low beam and high beamautomatically. The system recognizes vehicleswith their lights on, either approaching fromthe opposite direction or traveling in front ofyour vehicle, and consequently switches theheadlamps from high beam to low beam.
The system automatically adapts the low-beamheadlamp range depending on the distance tothe other vehicle. Once the system no longer
Exterior lighting111
Lights and windshield wipers
Z

detects any other vehicles, it reactivates thehigh-beam headlamps.
The system's optical sensor is located behindthe windshield near the overhead controlpanel.
Important safety notes
GWARNING
Adaptive Highbeam Assist does not recog-
nize road users:
Rwho have no lights, e.g. pedestrians
Rwho have poor lighting, e.g. cyclists
Rwhose lighting is blocked, e.g. by a barrier
On very rare occasions, Adaptive Highbeam
Assist may fail to recognize other road users
that have lights, or may recognize them too
late. In this, or in similar situations, the auto-
matic high-beam headlamps will not be
deactivated or will be activated regardless.
There is a risk of an accident.
Always carefully observe the traffic condi-
tions and switch off the high-beam head-
lamps in good time.
Adaptive Highbeam Assist cannot take intoaccount road, weather or traffic conditions.Adaptive Highbeam Assist is only an aid. Youare responsible for adjusting the vehicle'slighting to the prevailing light, visibility andtraffic conditions.
In particular, the detection of obstacles can berestricted if there is:
Rpoor visibility, e.g. due to fog, heavy rain orsnow
Rdirt on the sensors or the sensors areobscured
Switching Adaptive Highbeam Assist
on/off
XTo switch on:turn the light switch toX.
XPress the combination switch beyond thepressure point in the direction of arrowC.The

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, makesure that you touch only the wiper arm ofthe wiper.
!Never open the hood if a windshield wiperarm has been folded away from the wind-shield.
Never fold a windshield wiper arm without awiper blade back onto the windshield.
Hold the windshield wiper arm firmly whenyou change the wiper blade. If you releasethe windshield wiper arm without a wiperblade and it falls onto the windshield, thewindshield may be damaged by the force ofthe impact.
Mercedes-Benz recommends that you havethe wiper blades changed at a qualified spe-cialist workshop.
!Always position the windshield wiper armsvertically before folding them away from thewindshield. By doing so, you will avoid dam-age to the hood.
Replacing the windshield wiper blades
Moving the wiper arm to a vertical posi-
tion
On vehicles without KEYLESS-GO:
XTurn the SmartKey to positionGorHinthe ignition lock.
XSet the windshield wiper to position