2019 MERCEDES-BENZ S-CLASS CABRIOLET battery

If
yo u open the trunk lid from outside, the trunk
lid is automatically unloc ked. Problems with KEYLESS-GO
Problem
Possible causes/consequences and 0050
0050Solutions
Yo u can no lon ger lock or unlock the
ve hicle using KEYLESS-GO. Po
ssible causes are:
R The SmartK eybattery is weak or dischar ged.
R There is inter fere nce from a po werful radio signal source.
R The SmartK eyis defective. #
Check the battery using the battery check lamp and replace if necessary (→ page 60). #
Use the mechanical keyto lock or unlock theve hicle (→ page 60). #
Have theve hicle and SmartK eychecked at a qualified specialist workshop. Switching
the automatic locking feature
on/off The
vehicle is loc ked automatically when the
ignition is switched on and the wheels are turn‐
ing fast erthan walking pace. 64
Opening and closing

#
Toswitch on: slidethe switch toposition
0048. #
Toswitch off: slidethe switch toposition
0047.
% If an accident has been de tected, the trunk
will unlock even if separate lo cking is
switched on. Un
locking the trunk with the emer gency
re lease from inside Re
quirements:
R The 12Vve hicle battery is connected and
ch arge d. #
Press emer gency release button 1brief ly.
The trunk lid unloc ksand opens. Un
locking the trunk lid using the mechanical
key #
Take the mechanical key out of the SmartK ey
( → page 60). #
Press theto p of Mercedes star 1. Opening and closing
71

Problem
Possible causes/consequences and 0050
0050Solutions
& WARNING Risk of becoming trapped or fata lly injured if reve rsing pr otection is not activated
If yo u close a side wind owagain immediately af ter it has been bloc ked or reset, the side window closes
with increased or maximum forc e. The reve rsing feature is then not active.
Pa rts of the body could become trapped in the closing area in the process. #
Make sure that no parts of the body are in the closing area. #
Tostop the closing process, release the button or press the button again toreopen the side win‐
do w. If a side window is obstructed during closing and
reopens again slightly: #
Immediately af terth e window is bloc ked, pull the cor responding switch again until the side window has
closed, and hold the switch for an additional second.
The side window will be closed with increased forc e.
If a side window is obstructed again during closing and reopens again slightly: #
Repeat the pr evious step.
The side window is closed without the automatic reve rsing function.
The side windo wscannot be opened or
closed using the con venience opening
fe ature. The SmartK
eybattery is dischar ged or nearly dischar ged. #
Check the battery using the battery check lamp and replace if necessary (→ page 60).76
Opening and closing

Problem
Possible causes/consequences and 0050
0050Solutions
The trunk partition is not closed. #
Remo ve ov erhanging luggage and close the trunk partition.
The mechanical soft-to p components or control sy stem are defective. #
Visit a qualified specialist workshop.
The soft top has been opened and closed se veral times in a row. The soft-top drive has been switched off
au tomatical lyand will be available again af ter appro ximately ten minu tes. #
Repeat the opening or closing procedure af ter appro ximately ten minu tes.
Yo u are driving at a speed greaterth an 37 mph (60 km/h). #
Reduce your speed tobelow 37mph (60 km/h). Anti-theft pr
otection Fu
nction of the immobilizer The immobilizer pr
events your vehicle from being
st ar ted without the cor rect SmartK ey.
The immobilizer is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on. When leaving
theve hicle, alw aysta ke the Smart‐
Ke y with you and lock theve hicle. An yone can
st art the engine if a valid SmartK eyhas been left
inside theve hicle.
% Intheeve ntthe engine cann otbe star ted
(y et theve hicle ’sstar ter battery is charge d),
th e sy stem is not operational. Contact an
authorized Mercedes-Benz Center or call 1-800-FO
R-MERCedes (in the USA) or
1-800-387-0 100(in Canada). Opening and closing
83

#
Toswitch on/increase the le vel:press but‐
to n1 repeatedly until the desired heating
le ve l is set.
Depending on the heating le vel, up tothree
indicator lamps will light up. #
Toswitch off/reduce the le vel:press but‐
to n1 repeatedly until the desired heating
le ve l is set.
If all the indicator lamps are off, AIRSCARF is
switched off.
% When switching on, the blo wer will start up
on lyafte r a preheating phase lasting a few
seconds.
Af ter switching off, the blo wer will continue
to runfo r a few seconds tocool down the
heating elements.
% Ifth eve hicle battery voltage is too lo w,AIR‐
SCARF may switch off. #
Adjust the AIRSCARF vent (→ page 128).
Ma kesure that there are no objects co vering the
intake grille on the back of the head restra int.
Make sure that objects do not enter theve nts in
th e head restra ints. Ste
ering wheel Ad
justing the steering wheel electrically &
WARNING Risk of inju ryfrom adju sting
th eve hicle settings while theve hicle is in
motion
Yo u could lose cont rol of theve hicle in the
fo llowing situations:
R ifyo u adjust the driver's seat, the head
re stra int, thesteering wheel or the mir ror
while theve hicle is in motion
R ifyo ufa sten your seat belt while theve hi‐
cle is in motion #
Before starting the engine: adjust the
driver's seat, the head restra int, the
st eering wheel or the mir ror and fasten
yo ur seat belt. &
WARNING Risk of entrapment forch il‐
dren when adjusting thesteering wheel
Children could injure themselves if they
adjust thesteering wheel. #
Never lea vechildren unat tended in the
ve hicle. #
When leaving theve hicle, alw aysta ke
th e SmartK eywith you and lock the
ve hicle. The
steering wheel can be adjus ted when the
po we r supp lyis switched off. Seats and
stowing 95

Exterior lighting
Information about lighting sy
stems and your
re sponsibility The
various lighting sy stems of theve hicle are
only aids. The driver of theve hicle is responsible
fo r cor rect vehicle illumination in accordance
with the pr evailing light and visibility conditions,
legal requirements and traf fic situation. Light switch
Ope
rating the light switch 0047
0063 Leftstanding light
0048 0064 Rightstanding light
0049 0060 Parking lights and license plate lamp
004A 0058 Automatic driving lights (prefer red light
switch position) 004B
0058 Low beam/high beam
6 005E Switches there ar fog lights on or off
When low beam is activated, the0060 indicator
lamp forth e parking lights is deactivated and
re placed bythe0058 low beam indicator lamp. #
Alw ays park your vehicle safely and in a well-
lit area, in accordance with there leva nt le gal
st ipulations.
* NO
TEBattery discharging byoperating
th est anding lights Operating
thest anding lights over a period of
hours puts a stra in on the batter y. #
Where possible, switch on the
ri ght 0064 or left 0063parking light. In
the case of se vere battery discharging, the
st anding lights or parking lights are automati‐
cally swit ched off tofacilitate the next engine
st art.
The exterior lighting (e xcept standing and park‐
ing lights) swit ches off automatically when the
driver's door is opened. Light and visibility
111

Fo
lding the outside mir rors in/out #
Brief lypress switch 1.
Re setting the outside mir rors
% Ifth e battery has been disconnected or com‐
ple tely discharged, the outside mir rors must
be reset. Only then will the automatic mir ror
fo lding function workproperly. #
Brief lypress switch 1. Ad
justing the outside mir rors #
Select there qu ired mir ror using button 3or
4. #
Use button 2toset the position of the mir‐
ro ryo u ha veselected.
Engaging the outside mir rors #
Press and hold button 1.
Yo u will hear a click and the mir ror will audi‐
bly engage in position. The mir ror is set in
th e cor rect position. Au
tomatic anti-glare mir rorsfunction &
WARNING Risk of bu rns and poisoning
due tothe anti- glare mir ror electrolyte
Electrolyte may escape if theglass in an
automatic anti-glare mir ror breaks.
The electrolyte is harmful and causes ir rita‐
tion. It mu stnot come into contact wi thyour
skin, eyes,respiratory organs or clo thing or
be swallo wed. #
Ifyo u come into contact with electro‐
ly te , obser vethefo llowing:
R Rinse the electrolyte from your skin
and seek medical attention immedi‐
atel y.
R If electrolyte comes into contact
with your eyes, rinse them thor‐
oughly with clean water and seek
medical attention immediately.
R Ifth e electrolyte is swallo wed,
immediately rinse your mouth out
th oroughly. Do not induce vomiting.
Seek medical attention immediately.
R Immedia tely ch ange out of clo thing
which has come into con tact wi th
electrolyte.
R If an allergic reaction occurs, seek
medical attention immediatel y. The inside
rearview mir ror and the outside mir‐
ro r on the driver's side automatically go into
anti- glare mode if light from a headlamp hits the
sensor on the inside rearview mir ror. 12 0
Light and visibility

if
th ey come into contact wi thhot parts of
th e engine or exhaust sy stem. #
Therefore, check regularly that there
are no flammable materials in the
engine compartment or on theex haust
sy stem. Re
quirements:
R The SmartK eyis located in theve hicle and
th e SmartK eybattery is not dischar ged. #
Toswitch on the po wer supp ly:press but‐
to n1 once.
Yo u can activate the windshield wipers, for
ex ample.
The po wer supp lyis switched off again if thefo l‐
lowing conditions are me t:
R you open the driver's door
R you press but ton1 twice. #
Toswitch on the ignition: press button 1
twice.
The indicator lamps in the instrument clus ter
light up.
The ignition is switched off again if one of the
fo llowing conditions is me t:
R you do not start theve hicle within
15 minutes.
The transmission is in position 005D.
or
The electric parking brake is applied.
R you press but ton1 once. St
arting the vehicle St
arting the vehicle with thest art/s top but‐
ton
Requ irements:
R The SmartK eyis located in theve hicle and
th e SmartK eybattery is not dischar ged. #
Shift the transmission toposition 005Dor005C. Driving and parking
131