display MERCEDES-BENZ E-CLASS CABRIOLET 2021 Owner's Manual

The high beam will switch o. automatically in
the
fo llowing cases:
R Atspeeds below 25 km/h
R Ifot her road users are de tected
R If st reet lighting is su1cient
% The system's optical sensor is located behind
th e windscreen near theove rhead control
panel.
Switc
Switc hing A
hing A dap
daptiv
tive Highbeam Assis
e Highbeam Assist ton/o.
on/o.
Switc
Switc hing on
hing on #
Turn the light switch totheà position. #
Switch on the high beam using the combina-
tion switch.
If Ad aptive Highbeam Assist is activated,
th e_ indicator lamp will light up on the
cent ral display section of the inst rument dis-
pla y.
Switc Switc hing
hingo.
o. #
Switch o. the high beam using the combina-
tion switch. A
A
dap
dap tiv
tive Highbeam Assis
e Highbeam Assist Plus t Plus A
A
dap
dap tiv
tive Highbeam Assis
e Highbeam Assist Plus function t Plus function &
W
WARNING
ARNING Risk of accident despite Adap-
tive Highbeam Assist Plus
Ad aptive Highbeam Assist Plus does not react
to:
R road users without lights, e.g. pedestrians
R road users with poor lighting, e.g. cyclists
R road users whose lighting is obstructed,
e.g. bya bar rier
On very rare occasions, Adaptive Highbeam
Assist Plus may failto recognise other road
users with their own lighting, or may recognise
th em too late.
In these, or in similar situations, the automatic
high beam will not be deactivated or will be
activated despite the presence of other road
users. #
Always obser vethero ad and tra1c con-
ditions carefully and switch o. the high
beam in good time. Ad
aptive Highbeam Assist Plus cann ottake into
account road, weather or tra1c conditions.
De tection may be restric ted in thefo llowing
cases:
R in poor visibility, e.g. fog, heavy rain or snow
R ifth ere is dirt on the sensors or the sensors
are obscured
Ad aptive Highbeam Assist Plus is only an aid. Yo u
are responsible for adjusting theve hicle's lighting
to the pr evailing light, visibility and tra1c condi-
tions. Light and sight
131 131

Ad
aptive Highbeam Assist Plus automatically
switches between thefo llowing types of light:
R Low beam
R Partial high beam
R High beam
R ULTRA RANGE Highbeam ULTRA RANGE Highbeam increases
the bright-
ness of the cone of light tothe legally permitted
maximum.
Pa rtial high beam does not include other road
users in the high beam area. It does not dazzle
th em but enables full high beam illumination for
th e driver apart from theex cluded vehicles.
At speeds below 25 km/h or when there is su1-
cient street lighting:
R The partial high beam and the high beam will
be switched o. automaticall y.
At speeds greater than 30 km/h:
R If no other road users are de tected, the high
beam will switch on automaticall y.
R Ifot her road users are de tected, the partial
high beam will switch on automaticall y.
At speeds abo ve40 km/h:
R If no other road users are de tected on a
st ra ight road, ULTRA RA NGE Highbeam will be
switched on automaticall y.
R Ifot her road users are de tected, the partial
high beam will switch on automaticall y.R
If high ly re0ective signs are de tected, ULTRA
RANGE Highbeam will be switched o. auto-
maticall y.
% The system's optical sensor is located behind
th e windscreen near theove rhead control
panel.
Switc Switc hing A
hing A dap
daptiv
tive Highbeam Assis
e Highbeam Assist Plus t Pluson/o.
on/o.
Switc
Switc hing on
hing on #
Turn the light switch totheà position. #
Switch on the high beam using the combina-
tion switch.
When the high beam is switched on automati-
cally in the dar k, the_ indicator lamp will
light up on the central display section of the
inst rument displa y.
Switc Switc hing
hingo.
o. #
Switch o. the high beam using the combina-
tion switch. 132
132
Light and sight

F
F
itting t
itting t he wiper blades
he wiper blades #
Insert the new wiper blade into the wiper arm
in the direction of ar row 1. #
Slide catch 2inthe direction of ar row 3
until it engages in the locking position. #
Make sure that the wiper blade is seated cor-
re ctl y. #
Foldthe wiper arms back onto the wind-
screen. #
Switch on theve hicle. #
Press theî button on the combination
switch.
The wiper arms will return totheir original
positions. #
Switch o. theve hicle.
% Check the condition of the wiper blades regu-
lar lyand replace them in theev ent of visible
damage or ongoing smearing.
Maint
Maint enance display enance display
The maintenance display is available only with
standard windscreen wipers. #
Remo veprotective /lm 1from the mainte-
nance displa yson the tips of the ne wly/tted
wiper blades.
When the colour of the maintenance displa ys
ch anges from black toyello w, replace the wiper
blades.
% The duration until the colour changes varies
depending on the usage conditions. 136
136
Light and sight

9
g Switches ai r-re circulation mode on/o.
(/ page 145)
A Vehicles with THERM ATIC air conditioning
cont rol panel: ¿switches the A/C func-
tion on/o. (/ page 143)
Ve hicles with THERM OTRO NIC air condition-
ing control panel: _adjusts the air distri-
bution, right
B w Setsthete mp erature, right R
R
ear oper
ear oper ating unit in v
ating unit in v ehicles with
ehicles with
THERMO
THERMO TR
TRONIC air conditioning contr
ONIC air conditioning control panel ol panel 1
Sets thete mp erature
2 Display
3 Sets thete mp erature Oper
Oper
ating t
ating t he climat
he climat e contr
e control syst
ol system
em Switc
Switc
hing climat
hing climat e contr
e control
olon/o.
on/o. #
T
To switc
o switc h on:
h on:setthe air0ow toleve l 1 or
higher using theH button. #
T
To switc
o switc h
ho.:
o.: setthe air0ow toleve l 0 using
th eH button. If climate control is switched o.,
the windo ws
may mist up more quickl y.Switch climate control
o. only brie0 y. Switc
Switc
hing t
hing t he A/C function
he A/C function on/o.
on/o. using t
using the air
he air
conditioning contr
conditioning contr ol panel
ol panel The A/C
function heats, cools and dehumidi/es
th eve hicle's interior air. #
Press the¿ button.
Switch o. the A/C function only brie0y; other-
wise, the windo wsmay mist up more quickl y.
Condensation may drip from the underside of the
ve hicle when cooling mode is active. This is not
indicati veof a fault. Calling up t
Calling up t
he air conditioning menu
he air conditioning menu Calling up t
Calling up t
he air conditioning menu using t
he air conditioning menu using t he
he
multimedia syst
multimedia syst em
em #
Select one of thete mp erature displa ysatthe
lo we r edge of the media displa y. Climate control
143
143

#
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

#
T
To switc
o switc h on t
h on the pow
he pow er supply
er supply :
:press button
1 once.
Yo u can, forex ample, activate the windscreen
wiper.
The po wer supply is switched o. again if thefo l-
lowing conditions are met:
R you open the driver's door.
R you press button 1twice more. #
T
To switc
o switc h on t
h on the v
he vehicle:
ehicle: press button 1
twice.
Indicator and warning lamps go on in the
inst rument clus ter.
The vehicle is switched o. again if one of thefo l-
lowing conditions is met:
R you do not start theve hicle within 15 minutes
and the transmission is in position jorthe
electric parking brake is applied.
R you press button 1once. S S
t
tar
ar ting t
ting t he v
he vehicle
ehicle S
S
t
tar
ar ting t
ting t he v
he vehicle wit
ehicle wit h t
h the st
he st ar
art/st
t/st op butt
op butt on
on &
D
DAN
AN GER
GER Risk of fatal injuries caused by
ex haust gases
Combustion engines emit poisonous exhaust
ga ses such as carbon monoxide. Inhaling
th ese exhaust gases is hazardous tohealth
and leads topoisoning. #
Never lea vetheve hicle or, if present, the
stationa ryheater running in an enclosed
space without su1cient ventilation. &
W
WARNI NG
ARNI NGRisk of /re due to0ammable
material in the engine compartment or the
ex haust system
Flammable materials may ignite. #
Therefore, check regula rly th at there are
no 0ammable materials in the engine
compartment or on theex haust system. R
R
eq
eq uir
uir ements:
ements:
R theke y is in theve hicle and is recognised. #
ShiT the transmission toposition jori. #
Depress the brake pedal and press button 1
once. #
Ifth eve hicle does not start: switch o. non-
essential consumers and press but ton1
once. #
Ifth eve hicle still does not start and the dis-
play message Place the key in the marked
space See Owner's Manual appears inthe
inst rument displa y: starttheve hicle with the
ke y in the mar ked space (emer gency ope ra-
tion mode) (/ page 155).
% You can switch o. theve hicle while driving. To
do this, press button 1for about thre e sec-
onds or bypressing button 1thre e times
within thre e seconds. Be sure toobser vethe
saf ety no tes under "Driving tips"
(/ page 158).
Obser veany information rega rding display mes-
sages that can be displ ayed on the inst rument
displa y. 154
154
Driving and parking

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

Obser
vethefo llowing no tes during heavy precipi-
ta tion or in conditions in whi chaquaplaning may
occur:
R reduce speed
R avoid tyre ruts
R avoid sudden steering mo vements
R brake careful ly
% Also obser vethe no tes on regula rly ch ecking
wheels and tyres (/ page 336).
N
No ot
tes on dr
es on dr iving t
iving thr
hrough w
ough w at
ater on t
er on t he r
he road sur-
oad sur-
f
f ace
ace
Wa ter which has entered into theve hicle can
damage the engine, electrics and transmission.
Wa ter can also enter the air intake of the engine
and cause engine damage.
Obser vethefo llowing if you must drive thro ugh
wa ter:
R The water,when calm, may only reach the
lo we r edge of theve hicle body.
R Drive at a maximum speed of 10 km/h; water
can otherwise enter theve hicle interior or
engine compartment. R
Vehicles tr avelling in front, or oncoming vehi-
cles, can create waves which may exceed the
maximum permissible dep thofthewa ter.
The braking e.ect of the brakes is reduced aTer
fo rd ing. Brake carefully while paying attention to
th e tra1c conditions until braking po wer has been
fully restored. EC EC
O st
O st ar
art/st
t/st op function
op function EC
EC
O st
O st ar
art/st
t/st op function
op function
% Depending on the engine, the ECO start/s top
function is not available in all drive prog rams.
Obser vethe status display in the inst rument
display forth is.
The engine is switched o. automatically in thefo l-
lowing situations if all vehicle conditions for an
automatic engine stop are met:
R you brake theve hicle toa standstill in trans-
mission position hori.
R V
V ehicles wit
ehicles with a 48 V on-boar h a 48 V on-boar d electr
d electrical sy
ical sy s-
s-
t
t em:
em: you depress the brake pedal when tr avel-
ling at a low speed. If
th e system has de tected one of thefo llowing
situations, the engine will not stop:
R you stop at a stop sign and there is no vehicle
in front of you.
R theve hicle that stopped in front of you starts
up again.
R you manoeuvre, turn the steering wheel
sharply or engage reve rsege ar.
% Ifth e system de tects an intelligent stop inhibi-
to r,fo rex ample, a stop sign, the engine will
not stop.
If yo u activate the HOLD function or engage
th e park position j,the engine can be
switched o. in spite of an intelligent stop
inhibitor.
The engine restarts au tomatically in thefo llowing
cases:
R you engage transmission position hork.
R you depress the accelerator pedal.
R you open or close the soT top.
R an automatic vehicle engine start is requ ired.
R youre lease the brake pedal. Driving and parking
161 161

R
V
Vehicles wit
ehicles wit h a 48 V on-boar
h a 48 V on-boar d electr
d electrical sy
ical sys-
s-
t
t em:
em:
- youre lease the brake pedal on a downhill
gr adient and theve hicle does not roll.
- theve hicle rolls on a downhill gradient and
does not automatically enter glide mode at
20 km/h.
ECO start/stop function symbols in the inst ru-
ment displa y:
R the symbol è(gre en) appears when the
ve hicle is at a standstill: the engine was
switched o. bythe ECO start/s top function.
R the symbol ç(yellow) appears when the
ve hicle is at a standstill: not all vehicle condi-
tions for an engine stop ha vebeen met.
R neither the symbol ènorç appears
when theve hicle is at a standstill: an intelli-
ge nt stop inhibitor was de tected, e.g. a stop
sign.
R the symbol sappears: the ECO start/s top
function is deactivated or there is a malfunc-
tion. If
th e engine was switched o. bythe ECO start/
stop function and you lea vetheve hicle, a warning
to ne sounds and the engine is not restar ted. In
addition, thefo llowing display message appears in
th e inst rument displa y:
Vehicle is operational Switch off ignition before
exiting
If yo u do not switch o. theve hicle, it is automati-
cally switched o. aTer thre e minutes. Deactiv
Deactiv ating or activ
ating or activ ating t ating the EC
he ECO st
O star
art/st
t/st op
op
function
function #
Press button 1.
If indicator lamp 2lights up, the ECO start/
stop function is activated.
% Depending on the model and theve hicle
equipment, the button may also be located at
a di.erent position in the centre console. 162
162
Driving and parking