2021 MERCEDES-BENZ E-CLASS CABRIOLET battery

AIRSCARF uses hea
ted air towa rm the head and
neck area of vehicle occupants. The warm air
0o ws out of theve nts in the head restraints. #
Press button 1repeatedly until the desired
heating le vel is set.
Depending on the heating le vel, up tothree
indicator lamps will light up. If all the indicator
lamps are o., AIRSCARF is switched o.. %
When switching on, the blo wer will start up
only aTer a preheating phase lasting a few
seconds.
ATer switching o., the blo wer will continue to
ru nfo r a few seconds tocool down the heat-
ing elements.
% Ifth eve hicle battery voltage is too lo w,AIR-
SCARF may switch o.. #
Adjust the AIRSCARF vent (/ page 152).
Make sure that no objects are co vering the air
inlet grille on the back of the head restraints.
Ma kesure that objects do not enter the air
intakes and outlets in the head restraints. S S
t
teer
eer ing wheel
ing wheel A
A
djus
djusting t ting t he st
he steer
eering wheel manually
ing wheel manually &
W
WARNING
ARNING Risk of accident due toadjust-
ing theve hicle settings while theve hicle is
in motion
Yo u could lose control of theve hicle in thefo l-
lowing situations in particular:
R ifyo u adjust the driver's seat, the head
re straint, the steering 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 theve hicle: in particular,
adjust the driver's seat, head restraint,
stee ring wheel and mir ror,and fasten
yo ur seat belt. &
W
WARNING
ARNING Risk of entrapment forch ildren
when adjusting the steering wheel
Children could injure themsel ves if they adjust
th e steering wheel. 110
110
Seats and st
owing

5
L Low beam/high beam
6 R Switches there ar fog light on/o.
When low beam is activated, theT indicator
lamp forth e standing lights will be deactivated
and replaced bytheL low- beam indicator
lamp. #
Always park your vehicle safely using su1cient
lighting, in accordance with there leva nt legal
stipulations.
* N
NOOTE
TE Battery dis charging byoperating the
standing lights Operating
the standing lights over a period of
hours puts a strain on the batter y. #
Where possible, switch on theright X
or leT Wparking light. Fo
rve hicles that are wider than 2 m or lon ger
th an 6 m,single-sided parking lighting is not per-
mitted in some countries. In this case, the stand-
ing lights are also switched on in the parking
lights position. If
th e battery is insu1cient lych arge d, the stand-
ing lights or parking lights will be switched o.
automatically tofacilitate the next engine start.
The exterior lighting (e xcept standing and parking
lights) will switch o. automatically when the driv-
er's door is opened.
R Obser vethe no tes on sur round lighting
(/ page 133).
A
A ut ut omatic dr
omatic dr iving lights function
iving lights function
When theve hicle is switched on, the standing
lights, low beam and daytime running lights are
switched on automatically depending on the light
conditions. &
W
WARNING
ARNING Risk of accident when the
dipped beam is switched o. in poor visi-
bility
When the light switch is set toà ,the
dipped beam may not be switched on auto-
matically if there is fog, snow or other causes
of poor visibility such as spr ay. #
In such cases, turn the light switch to
L . The automatic driving lights are only an aid.
Yo u
are responsible forve hicle lighting.
Switc Switc hing t
hing t he r
he rear f
ear f og lights on or
og lights on or o.
o.
R
R eq
eq uir
uir ements:
ements:
R The light switch is in theL orà posi-
tion. #
Press the R button.
Please obser vethe count ry-speci/c la wsonthe
use of rear fog lamps. 126
126
Light and sight

F
F
olding t
olding t he outside mirr
he outside mirr or
ors in/out
s in/out #
Brie0y press button 1.
R
R ese
ese tting t
tting t he outside mirr
he outside mirr ors
ors
% Ifth e battery has been disconnected or com-
ple tely dischar ged, the outside mir rors must
be reset. Only then will the automatic mir ror
fo lding function workproper ly. #
Brie0y press but ton1. A
A
djus
djusting t ting t he outside mirr
he outside mirr ors
ors #
Press button 3or4 toselect the outside
mir rorto be adjus ted. #
Press button 2toadjust the position of the
mir ror glass.
Eng
Eng aging t
aging t he outside mirr
he outside mirr ors
ors #
Vehicles without elect rically folding outside
mir rors: manually mo vethe outside mir ror into
th e cor rect position. #
Vehicles with elect rically folding outside mir-
ro rs: press and hold button 1.
Yo u will hear a click and the mir ror will audibly
click into place. The outside mir ror will now be
set tothe cor rect position. A
A
ut
ut omatic anti-dazzle mirr
omatic anti-dazzle mirr or
ors function
s function &
W
WARNING
ARNING Risk of acid burns and poison-
ing due tothe anti-dazzle mir ror electro-
ly te
Electrolyte may escape if the glass in an auto-
matic anti-dazzle mir ror breaks. The electrolyte is hazardous
tohealth and cau-
ses ir rita tion. It must not come into contact
with your skin, eyes, respiratory or gans or
clo thing or be swallo wed. #
Ifyo u come into contact with electrolyte,
obser vethefo llowing:
R Immediate lyrinse the electrolyte
from your skin with water and seek
medical attention.
R If electrolyte comes into contact with
yo ur eyes, immediately rinse them
th oroughly with clean water and seek
medical attention.
R Ifth e electrolyte is swallo wed, imme-
diately rinse your mouth out thor-
oughl y.Do not induce vomiting. Seek
medical attention immediatel y.
R Immediately change out of clo thing
which has been contaminated with
electrolyte.
R If an allergic reaction occurs, seek
medical attention immediatel y. Light and sight
139 139

#
Press theu and^ buttons simultane-
ousl y.
The Îsymbol on there mo tecont rol display
will 0ash. #
Use the, and. buttons toset the
desired departure time. #
Press theu and^ buttons simultane-
ousl y.
The new departure time will be stored.
Up tothre e departure times can be stored. #
T
To activ
o activ at
at e t
e t he depar
he depar tur
ture time:
e time: selectthe
desired departure time and press and hold
th eu button.
The Ísymbol, the departure time and,
depending on the selected departure time, the
letter A A, B , B or CCwill appear on the displa y. #
T
To deactiv
o deactiv at
ate t
e t he depar
he depar tur
ture time:
e time: selectthe
desired departure time and press and hold
th e^ button.
OFF
OFF will appear on the displa y. #
T
To c
o c hec
hec k t
k the st
he st atus of t
atus of t he activ
he active st
e stationar
ationar y
y
heat
heat er
er:
:brie0y press theu button. Switc Switc
hing hingo.
o.immediat
immediat ely
ely #
Press and hold the^ button.
Ov
Ov er
ervie
vie w of t
w of t he r
he remot
emot e contr
e contr ol display
ol display s (st
s (station-
ation-
ar
ar y heat
y heat er/v
er/ventilation)
entilation) 1
Stationary ventilation switched on
2 Stationary heater switched on
3 Selected departure time
4 Remaining time forth e stationary heater/
ve ntilation (in minutes)
5 Stationary heater/ ventilation active
6 Departure time activated
7 Signal strength Fu
rther possible displ ays:
R T
Time:
ime: the activated departure time.
R Zer
Zero minut
o minut es:
es:theru nning time forth e station-
ary heater is extended because the engine has
not yetreached operating temp erature when it
is star ted.
R OFF:
OFF: the stationary heater/ventilation is
switched o..
R
R eplacing t
eplacing t he r
he remot
emot e contr
e contr ol batt
ol batt er
ery (st
y (st ationary
ationary
heat
heat er)
er) &
D
DAN
AN GER
GER Risk of fatal injuries if batteries
are swallo wed
Batteries contain toxic and cor rosive subs tan-
ces. Swall owing batteries may cause se vere
internal burns within two hours.
There is a risk of fatal injur y. #
Keep batteries out of there ach of chil-
dren. #
Ifth e co ver and/or lid of the battery
compartment does not close securel y, Climate control
149 149

do not use
theke y and keep it away from
ch ildren. #
If batteries are swallo wed, seek medical
attention immediatel y.+
ENVIR
ENVIR
ONMENT
ONMENT AL NO
AL NOTE
TE Environmen tal
damage due toimproper disposal of bat-
te ries Batteries contain
toxic and corro-
sive substances. #
Ta
ke dischar ged batteries to a
qu ali/ed specialist workshop or toa col-
lection point for used batteries. R
R
eq
eq uir
uir ements:
ements:
R One CR2450 lithium battery Mercedes-Benz
recommends that you ha vethe
battery replaced at a quali/ed specialist work-
shop. #
Push a poin ted object into recess 1. #
Slide battery co ver2 backwards in the direc-
tion of the ar row and remo vethe em pty bat-
te ry. #
Insert new battery 3with the lettering facing
upwards. #
Slide battery co ver2 inthe opposite direc-
tion tothe ar row onto there mo tecont rol until
th e battery co ver engages. R
R
ectifying pr
ectifying pr oblems wit
oblems with t
h the r
he r emot
emot e contr
e contr ol f
ol for
or
t
t he st
he st ationar
ationar y heat
y heater/v
er/ventilation
entilation
F
F AIL
AIL ¨
¨appear
appear s on t
s on the r
he remot
emot e contr
e contr ol display
ol display
Po ssible cause:
R The signal transmission between the transmit-
te r and receiver is malfunctioning. #
Change your position in relation totheve hicle,
moving closer if necessar y.
F
F AIL appear
AIL appear s on t
s on the r
he remot
emot e contr
e contr ol display
ol display
Po ssible cause:
R The star ter battery is not su1ciently charge d. #
Char gethe star ter batter y.
R The fuel tank content is below there ser vefuel
le ve l. #
Refuel at the nearest /lling station.
F
F AIL
AIL ¯
¯ appear
appear s on t
s on the r
he r emot
emot e contr
e contr ol display
ol display
Po ssible cause:
R There is a malfunction in the stationary heater. 150
150
Climate control

S
S
t
tar
ar ting t
ting t he v
he vehicle wit
ehicle wit h t
h the ke
he key in t
y in t he mark
he mark ed
ed
space (emerg
space (emerg ency oper
ency operation mode)
ation mode)
If th eve hicle does not start and thePlace the
key in the marked space See Owner's Manual
message appears in the inst rument displa y,you
can start theve hicle in emer gency ope ration
mode. #
Make sure that the mar ked space 2is
em pty. #
Remo vetheke y1 from theke yring. #
Place theke y1 inthe mar ked space 2.
The vehicle will start aTer a short time. When
youre mo vetheke y1 from the mar ked
space 2,theve hicle can be driven. For fur-
th er engine starts ho wever,theke y1 must
be located in the mar ked space 2during the
entire journe y. #
Have theke y1 checked at a quali/ed spe-
cialist workshop.
If t If t he v
he v ehicle does no
ehicle does no t st
t start:
art: #
Place theke y1 inthe mar ked space 2and
lea veitth ere. #
Depress the brake pedal and start theve hicle
using the start/s top button.
% You can switch on the po wer supply or the
ve hicle with the start/s top button.
Obser veany information rega rding display mes-
sages that can be displ ayed on the inst rument
displa y. S
S
t
tar
ar ting t
ting t he v
he vehicle via R
ehicle via R emot
emote Online Ser
e Online Ser vices
vices Cooling or heating t
Cooling or heating t
he v
he vehicle int
ehicle int er
erior bef
ior bef ore
ore
st
st ar
ar ting t
ting t he jour
he jour ney
ney
Ensu rethefo llowing before starting the engine:
R The legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone.
R It is safe tostart and runth e engine where
yo ur vehicle is par ked.
R The fuel tank is su1cient lyfull.
R The star ter battery is su1ciently charge d.
Char
Char ging t
ging t he st
he start
arter batt
er batt er
ery bef
y bef or
or e st
e st ar
arting t
ting t he
he
jour
jour ney
ney
Yo u can receive a message on your smartphone
when the state of charge ofthe star ter battery is
lo w. You can then start theve hicle with the smart-
phone tocharge the batter y.The vehicle is auto-
matically switched o. aTer ten minutes.
Ensure thefo llowing before starting the engine:
R The legal stipulations in the area where your
ve hicle is par ked allow engine starting via
smartphone. Driving and parking
155
155

#
Only depress the accelerator pedal
slightl y. #
Have the cause recti/ed immediately at
a qu ali/ed specialist workshop. *
N
NOOTE
TE Reduced battery life due tofrequent
short-distance trips The 12 V battery may not be su1cien
tly
ch arge d when theve hicle is used only for
short-dis tance trips. This reduces the life of
th e batter y. #
Drive longer distances regula rly to
ch arge the batter y. *
N
NO
OTE
TE Damage totheve hicle due tonot
observing the maximum permitted head-
ro om clearance If
th eve hicle height is greater than the maxi-
mum permitted headroom clearance, thero of
and other parts of theve hicle may be dam-
aged. #
Obser vethe signposted headroom clear-
ance. #
Ifth eve hicle height is greater than the
permitted headroom clearance, do not
enter. #
Obser vethech anged vehicle height with
add-on roof equipment. N No
ot
tes on dr
es on dr iving wit
iving with a r
h a roof load, tr
oof load, tr ailer or fully
ailer or fully
laden v
laden v ehicle
ehicle
When driving with a loaded roof luggage rack or
trailer as well as with a fully laden or fully occu-
pied vehicle, theve hicle's driving and steering
ch aracteristics change.
Yo u should bear thefo llowing in mind:
R Do not exceed the permissible roof load and
to wing capacity. Also obser vethete ch nical
data in the printed Owner's Manual.
R Evenly distribute thero of load, and place
heavy objects at the bottom. Also comply with
th e no tes on loading theve hicle
(/ page 115). R
Drive attentivel y,and avoid suddenly pulling
awa y,braking and steering as well as rapid
cornering.
N
No ot
tes on dr
es on dr iving on salt-tr
iving on salt-tr eat
eated r
ed r oads
oads
The braking e.ect is limited on salt-treated roads.
Therefore, obser vethefo llowing no tes:
R due tosalt build-up on the brake disks and
brakepads, the braking distance can increase
considerably or result in braking only on one
side
R maintain a much greater safe distance tothe
ve hicle in front
To remo vesalt build-up:
R brake occasionally while paying attention to
th e tra1c conditions
R carefully depress the brake pedal at the end of
th e journey and when starting the next jour-
ney
Not
Not es on aq
es on aq uaplaning
uaplaning
Aq uaplaning can take place once a cer tain
amount of water has accumulate d onthero ad
sur face. 160
160
Driving and parking

Appl
Appl
ying/r
ying/r eleasing t
eleasing t he electr
he electr ic par
ic parking br
king br ake
ake
manual ly
manually
Appl Appl ying
ying #
Push handle 1.
The red! indicator lamp lights up in the
inst rument clus ter. %
The electric parking brake is only securely
applied if there d! indicator lamp is lit
continuousl y.
R R eleasing eleasing #
Switch on theve hicle. #
Pull handle 1.
The red! indicator lamp in the inst rument
cluster goes out.
Emerg
Emerg ency br
ency br aking
aking #
Press and hold handle 1.
As long as theve hicle is in motion, the
Release parking brake message is displayed
and there d! indicator lamp 0ashes.
When theve hicle has been braked toa stand-
still, the electric parking brake is applied. The
re d! indicator lamp lights up in the inst ru-
ment cluster. N
No
ot
tes on par
es on par king up t
king up the v
he vehicle
ehicle If
yo u lea vetheve hicle par ked up for longer than
six weeks, it may su.er damage thro ugh disuse. The 12 V battery may also be impaired or dam-
aged
byheavy discharging.
% Further information can be obtained at a
qu ali/ed specialist workshop. S S
t
tandb
andb y mode (e
y mode (e xt
xtension of t
ension of t he st
he start
arter batt
er batt er
ery's
y's
per
per iod out of use)
iod out of use) S
S
t
tandb
andb y mode function
y mode function
% This function is not available for all models.
If standby mode is activated, energy loss will be
minimised during extended periods of non-opera-
tion.
St andby mode is characterised bythefo llowing:
R The star ter battery is preser ved.
R The maximum non-operational time appears in
the media displa y.
R The connection toonline services is inter rup-
te d.
R The ATA (anti-theT alarm system) is not availa-
ble.
R The interior pr otection and tow- aw ay protec-
tion functions are not available. 182 182
Driving and parking