steering MERCEDES-BENZ E-CLASS CABRIOLET 2021 Owner's Guide

&
W
WARNI NG
ARNI NGRisk of accident in spi teof
ro ute-based speed adap tation
Ro ute-based speed adap tation can malfunc-
tion or be temp orarily una vailable in thefo l-
lowing situations:
R Ifth e driver does not follow the calculated
ro ute
R If map data is not up-to-date or available
R Intheev ent of roadwor ks
R In bad weather or road conditions
R Ifth e accelerator pedal is depressed
R Intheev ent of electronically displa yed
speed limi tations #
Adapt the speed tothe tra1c situation. Se Se
tting r
tting r out
oute-based speed adapt
e-based speed adapt ation
ation
R R eq
eq uir
uir ements:
ements:
R Active Distance Assist DISTRONIC is acti va-
te d.
R ECO Assist is active. Multimedia system:
4 © 5
Settings 5
Assistance
5 Route-based speed adapt. #
Activate or deactivate the function.
When the function is active, theve hicle speed
is adjusted depending on thero ute events
ahead.
% Further information on the route-based speed
adap tation (/ page 201).
F
F unction of A
unction of A ctiv
ctive
eTr
Tra1c
a1c Jam Assist
Jam Assist
Ac tive Tra1c Jam Assist helps you when in tra1c
jams on multi-lane roads with separate car riage-
wa ys by automatically pulling away within 60 sec-
onds and with mode rate stee ring manoeuvres. It
orients itself using theve hicle in front and lane
markings. Active Tra1c Jam Assist automatically
main tains a safe distance from theve hicle in front
and vehicles cutting in.
Ac tive Tra1c Jam Assist requ ires you, as the
driver, tokeep your hands on the steering wheel
at all times so that you are able tointer vene at
any time tocor rect the course of theve hicle and
ke ep it in lane. Obser vethe no tes on driving sys- te
ms and your responsibility; you may otherwise
fa ilto recognise dangers (/ page 183).
Ac tive Tra1c Jam Assist activates automatically as
soon as all of there qu irements are met: The ¬
status display appears in the inst rument clus ter
when the function is active.
Re quirements:
R You are in a tra1c jam on a mo torw ay or high-
speed major road.
R Active Distance Assist DISTRONIC is acti vated
and active (/ page 198).
R Active Brake Assist is available (/ page 205).
R Active Steering Assist is activated and active
(/ page 204).
R Active Tra1c Jam Assist is activated
(/ page 203).
R You are tr avelling no faster than 60 km/h.
Syst
Syst em limits
em limits
The system limi tations of Active Distance Assist
DISTRONIC and Active Steering Assist apply to
Ac tive Tra1c Jam Assist. 202
202
Driving and parking

A
A
ctiv
ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctive
eTr
Tra1c
a1c Jam Assist
Jam Assist
Multimedia system:
4 © 5
Settings 5
Quick access #
Select ¬. A
A
ctiv
ctiv eSt
e St eer
eer ing Assist
ing Assist F
F
unction of A
unction of A ctiv
ctiveSt
e St eer
eer ing Assist
ing Assist
Ac tive Steering Assist is only available up to a
speed of 210 km/h. The system helps youto stay
in the centre of the lane bymeans of moderate
steering inter ventions. Depending on the speed
driven, Active Steering Assist uses theve hicles
ahead and lane markings as a refere nce.
% Depending on the countr y,in the lo wer speed
ra nge Active Steering Assist can use the sur-
ro unding tra1c as a refere nce. If necessar y,
Ac tive Steering Assist can then also pr ovide
assistance when driving outside the centre of
th e lane, forex ample, toform are scue lane.
If th e de tection of lane markings and vehicles
ahead is impaired, Active Steering Assist switches
to passive mode. The system pr ovides no support
in this case. S
S t
tatus displa
atus displa y of A
y of Activ
ctiveSt
e St eer
eer ing Assis
ing Assist in t t in the
he
Ins
Instr trument Display
ument Display
R Ø (gre y): acti vated and passive
R Ø (gre en): activated and active
R Ø (red): system limits de tected
R Ø (white, red hands): "hands on the steer-
ing wheel" prom pt
% During the transition from active topassive
status, theØ symbol is shown as enlar ged
and 0ashing. Once the system is passive, the
Ø symbol is shown as grey inthe Instru-
ment Displa y.
% Depending on the selected vehicle settings,
Ac tive Steering Assist may be una vailable.
St
St eer
eer ing and t
ing and t ouc
ouch det
h det ection
ection
The driver is requ ired tokeep their hands on the
stee ring wheel at all times and be able tointer-
ve ne at any time tocor rect the course of theve hi-
cle and keep it in lane. The driver must expect a
ch ange from active topassive mode or vice versa
at any time. If
th e system de tects that the driver has not
steered theve hicle for a considerable period of
time or has remo vedth eir hands from the steering
wheel, display 1appears. If the driver still does
not steer theve hicle, a warning tone sounds in
addition tothe visual warning message.
If th e driver does not react tothewa rning for a
considerable period, the system can initiate an
emer gency stop (/ page 205).
If th e driver steers, no warning is issued, or the
wa rning is ended.
If Ac tive Steering Assist de tects that a system
limit has been reached, a visual warning is issued
and a warning tone sounds. Driving and parking
203
203

Obser
vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 183).
Syst
Syst em limits
em limits
Ac tive Steering Assist has a limited steering tor-
qu efo r lateral guidance. In some cases, the steer-
ing inter vention is not su1cient tokeep theve hi-
cle in the lane or todrive thro ugh exits.
The system may be impaired or may not function
in thefo llowing instances:
R There is poor visibility, e.g. due tosno w,rain,
fo g, heavy spr ay,gr eatly varying light condi-
tions or strong shadow s onthe car riag ewa y.
R There is glare, e.g. from oncoming tra1c,
di re ct sunlight or re0ections.
R Insu1cient road illumination.
R The windscreen is dirty, mis ted up, damaged
or co vered in the vicinity of the camera, e.g.
by a stic ker.
R No, or se veral, unclear lane markings are pres-
ent for one lane, or the markings change
qu ickl y,forex ample, in a construction area or
junctions. R
The lane markings are wornawa y,dark or co v-
ered up, e.g. bydirt or sno w.
R Ifth e distance totheve hicle in front is too
short and thus the lane markings cannot be
de tected.
R The road is nar row and winding.
R There are obs tacles on the lane or projecting
out into the lane, such as object mar kers.
The system does not pr ovide assistance in thefo l-
lowing conditions:
R On tight bends and when turning.
R When crossing junctions.
R Atroundabouts or toll stations.
R When towing a trailer.
R When the tyre pressure is too lo w. &
W WARNI NG
ARNI NGRisk of accident if Active Steer-
ing Assist unexpectedly stops functioning
If th e system limits of Active Steering Assist
are reached there is no guarantee that the
system will remain active or will keep theve hi-
cle in lane. #
Alwayske ep your hands on the steering
wheel and obser vethe tra1c carefull y. #
Always steer theve hicle paying attention
to tra1c conditions. &
W
WARNI NG
ARNI NGRisk of accident if Active Steer-
ing Assist unexpectedly inter venes
The de tection of lane markings and objects
may malfunction and cause unexpected steer-
ing inter ventions. #
Steer according totra1c conditions. A A
ctiv
ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctiveSt
e St eer
eer ing Assist
ing Assist
R
R eq
eq uir
uir ements:
ements:
R ESP ®
is activated, but is not inter vening.
R Active Distance Assist DISTRONIC is acti va-
te d.
Multimedia system: 4 © 5
Settings 5
Quick access #
Select aAct. Steer. Asst .204
204
Driving and parking

F
F
unction of A
unction of A ctiv
ctive Emerg
e Emerg encySt
ency Stop Assist
op Assist If
th e system de tects that the driver has not
steered theve hicle for a considerable period of
time or has remo vedth eir hands from the steering
wheel, display 1appears in the Instrument Dis-
pla y.Ifth e driver still does not steer theve hicle,
or gives no con/rmation tothe system, a warning
to ne sounds in addition tothe visual warning mes-
sage.
If th e driver still does not respond tothewa rning,
th eBeginning emergency stop message appears
in the Instrument Displa y.Ifth e driver still does
not respond, Active Distance Assist DISTRONIC re
duces the speed. The vehicle is decelerated in
stages toa standstill.
Depending on the countr y,at speeds below
60 km/h the hazard warning lights switch on
automaticall y.
When theve hicle is stationar y,thefo llowing
actions are car ried out:
R The vehicle is secured with the electric par k-
ing brake.
R Active Distance Assist DISTRONIC is ended.
R The vehicle is unloc ked.
R If possible, an emer gency call is placed tothe
Mercedes-Benz eme rgency call centre.
The driver can cancel the deceleration at any time
by per form ing one of thefo llowing actions:
R Steering
R Braking or accelerating
R Deactivating Active Distance Assist
DISTRONIC A A
ctiv
ctiv e Br
e Br ak
ake Assist
e Assist F
F
unction of A
unction of A ctiv
ctive Br
e Br ak
ake Assist
e Assist
Ac tive Brake Assist consists of thefo llowing func-
tions:
R Distance warning function
R Autonomous braking function
R Situation-dependent braking assistance
R V
Vehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e: Eva-
sive Steering Assist and cornering function
Ac tive Brake Assist can help youto minimise the
ri sk of a collision with vehicles, cyclists or pedes-
trians or toreduce the e.ects of such a collision.
If Ac tive Brake Assist has de tected a risk of colli-
sion, a warning tone sounds and theL dis-
ta nce warning lamp lights up in the inst rument
cluster.
If yo u do not react tothewa rning, autonomous
braking can be initiated in critical situations.
In especially critical situations, Active Brake Assist
can initiate autonomous braking directl y.In this
case, thewa rning lamp and warning tone occur
simultaneously with the braking application. Driving and parking
205 205

R
at speeds up toappr oximately 80 km/h when
approaching stationary vehicles and vehicles
ahead
R at speeds up toappr oximately 60 km/h when
approaching moving pedestrians
Situation-dependent br
Situation-dependent br aking assist
aking assistance (v
ance (vehicles
ehicles
wit
wit h Dr
h Dr iving Assist
iving Assist ance P
ance Pack
ackag
ag e)
e)
The situation-dependent braking assistance can
inter vene from a speed of app roximately 7 km/h
in thefo llowing situations:
R at speeds up toappr oximately 250 km/h
when approaching vehicles ahead
R at speeds up toappr oximately 100 km/h
when approaching stationary vehicles
R at speeds up toappr oximately 80 km/h when
approaching cyclists ahead
R at speeds up toappr oximately 60 km/h when
approaching stationary and moving pedes-
trians, crossing vehicles, and stationary and
crossing cyclists Cancelling a br
Cancelling a br
ak
ake application of A
e application of A ctiv
ctive Br
e Br ake
ake
Assist
Assist
Yo u can cancel a brake application of Active
Brake Assist at any time by:
R sharply depressing the accelerator pedal or
with kickdown
R releasing the brake pedal
Ac tive Brake Assist may cancel the brake applica-
tion when one of thefo llowing conditions is ful/l-
led:
R you manoeuvre toavo idthe obstacle
R there is no longer a risk of collision
R an obstacle is no lon ger de tected in front of
yo ur vehicle
Ev
Ev asiv asiv eSt
e St eer
eer ing Assis
ing Assist (onl t (only v
y vehicles wit
ehicles wit h Dr
h Driving
iving
Assist
Assist ance P
ance P ack
ackag
age)
e)
Evasive Steering Assist has thefo llowing charac-
te ristics:
R The abilit yto detect stationary or moving
pedestrians.
R Assis tance thro ugh po wer-assis ted steering if
it de tects a swerving manoeuvre. R
Activation byan abrupt steering mo vement
during a swerving manoeuv re.
R Assistance during swerving and straigh tening
of theve hicle.
R Reaction from a speed of appr oximately
20 km/h up toa speed of appr oximately
70 km/h.
Yo u can pr eventthe assistance at any time by
actively steering.
Cor Cor ner
nering function (onl
ing function (onl y v
y vehicles wit
ehicles with Dr h Driving
iving
Assist
Assist ance P
ance P ack
ackag
age)
e)
If th e system de tects a risk of a collision with an
oncoming vehicle when turning across an oncom-
ing lane, autonomous braking can be initiated at
speeds below 15 km/h before you ha veleT the
lane in which you are driving. &
W
W ARNING ARNING Risk of accident despite Eva-
sive Steering Assist
Evasive Steering Assist cannot alw aysre cog-
nise objects or complex tra1c situations
clear ly. 208 208
Driving and parking

Moreo
ver,th e steering support pr ovided by
Evasive Steering Assist is not su1cient to
avo id a collision. #
Always pay careful attention tothe tra1c
situation; do not relyon Evasive Steering
Assist alone. #
Be prepared tobrake or swer veif neces-
sar y. #
End the support byactively steering in
non-critical situations. #
Drive at an appropriate speed if there
are pedestrians close tothe path of your
ve hicle. Syst
Syst
em limits
em limits
Fu ll system per form ance is not yetav ailable for a
few seconds aTer switching on theve hicle or aTer
driving o..
If Ac tive Brake Assist is impaired or inoperative
due toa malfunction, theÄ warning lamp
appears in the Instrument Displa y. The system may be impai
red or may not function,
particular lyin thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is glare,
in direct sunlight or in greatly varying light
conditions.
R Ifth e sensors are dirty, misted up, damaged or
co vered.
R Ifth e sensors are impaired due tointer fere nce
from other radar sources, e.g. strong radar
re 0ections in multi-s tore y car par ks.
R If a loss of tyre pressure or a defecti vetyre
has been de tected and displa yed.
R In complex tra1c situations where objects
cannot alw ays be clear lyidenti/ed.
R If pedestrians or vehicles mo vequickly into
th e sensor de tection range.
R If pedestrians are hidden by other objects.
R Ifth e typical outline of a pedestrian cannot be
distinguished from the backg round.
R If a pedestrian is not de tected as such, e.g.
due tospecial clo thing or other objects.
R Ifth e driver's seat belt is not fastened. R
On bends wi tha tight radius.
% The Active Brake Assist sensors adjust auto-
matical lywhile a cer tain distance is being
driven aTer theve hicle has been deli vered.
Ac tive Brake Assist is una vailable or only par-
tially available during thete ach-in process.
A
A ctiv ctiv ating/deactiv
ating/deactiv ating A
ating Activ
ctive Br
e Br ak
ake Assist
e Assist
R
R eq
eq uir
uir ements:
ements:
R The vehicle is switched on.
Multimedia system: 4 © 5
Settings 5
Assistance
5 Active Brake Assist #
Select the desired setting.
The setting is retained when the drive system
is next star ted.
Deactiv
Deactiv ating A
ating Activ
ctive Br
e Br ak
ake Assist
e Assist
% It is recommended that you alw ays lea ve
Ac tive Brake Assist acti vated. Driving and parking
209
209

#
Select Off.
The distance warning function, the autono-
mous braking function and Evasive Steering
Assist are deactivated.
When theve hicle is next star ted, the middle
setting is automatically selected.
% IfAc tive Brake Assist is deactivated, theæ
symbol appears in the status bar of the Instru-
ment Displa y. T T
r
ra1c
a1c Sign Assist
Sign Assist F
F
unction of
unction of Tr
Tra1c
a1c Sign Assist
Sign Assist
Tr a1c Sign Assist de tects tra1c signs with the
multifunction camera (/ page 183). It assists
yo uby displaying de tected speed limits and over-
ta king restrictions in the Instrument Displa y.
Obser vethe no tes on driving systems and your
re sponsibility; you may otherwise failto recognise
dangers (/ page 183).
Since Tra1c Sign Assist also uses the data stored
in the navigation system, it can update the display
in thefo llowing situations without de tecting tra1c
signs. If
th e system de tects that you are driving onto a
section of road in the wrong direction of tr avel, it
triggers a warning.
The camera also de tects tra1c signs with a
re striction indicated byan additional sign (e.g.
when wet). These are only displa yed if a restric-
tion applies or if the system cannot clear lyde ter-
mine whe ther there striction applies.
W
W ar
ar ning when t
ning when t he maximum per
he maximum per missible speed is
missible speed is
ex
ex ceeded
ceeded
The system can warnyou if you unintentionally
ex ceed the maximum permissible speed. Todo
th is, you can specify in the multimedia system by
how much the maximum permissible speed can
be exceeded before a warning is issued. You can
specify whe ther thewa rning is tobe just a visual
wa rning or an acoustic one as well. Displa
Displa y in t
y in the Ins
he Instr trument Display
ument Display Instrument Display in
theWi descreen Cockpit
1 Maximum permissible speed
2 Maximum permissible speed when there is a
re striction
3 Additional sign with restriction
% V
V ehicles wit
ehicles wit h a st
h a standar
andar d Ins
d Instrtrument Display
ument Display: :a
+
+ symbol next toa tra1c sign in the Instru-
ment Display indicates that additional tra1c
signs ha vebeen de tected. These can also be
displa yed in the media display and optionally
in the head-up displa y.210
210
Driving and parking

be
warned byvibration pulses in the steering
wheel and guided bya course-co rrecting brake
application back into your lane.
Ac tive Lane Keeping Assist is available in the
speed range between 60 km/h and 200 km/h.
Ac tive Lane Keeping Assist can neither reduce the
ri sk of an accident if youfa ilto adapt your driving
style nor override the la wsof ph ysics. It cannot
ta ke into account road, weather or tra1c condi-
tions. Active Lane Keeping Assist is only an aid.
Yo u are responsible for maintaining a safe dis-
ta nce totheve hicle in front, forve hicle speed, for
braking in good time and for st aying in lane.
The status of Active Lane Keeping Assist is dis-
pla yed in the on-board computer:
R Ã (gre en): Active Lane Keeping Assist is
active and operating.
R Ã (gre y): Active Lane Keeping Assist is
active but not operating.
R ·: Active Lane Keeping Assist is deactiva-
te d or there is a malfunction. If a lane-cor
recting brake application occurs, dis-
play 1appears in the Instrument Displa y.
The system does not app lythe brake if you acti-
va te the turn signal indicator.
V
V ehicles wit
ehicles wit h Dr
h Driving Assist
iving Assist ance P
ance Pack
ackag
age:
e: ifthe
system de tects an obs tacle, such as ano ther vehi-
cle in the adjacent lane, it will apply the brake
re ga rdless of the turn signal indicator.
Yo u are warned byvibrations in the steering wheel
in thefo llowing circumstances:
R Active Lane Keeping Assist de tects a lane
marking.
R A front wheel drives overth is lane marking. Conditions f
Conditions f or a cour
or a course-corr
se-correcting br
ecting br ak
ake applica-
e applica-
tion (v
tion (v ehicles wit
ehicles wit hout Dr
hout Driving Assist
iving Assist ance P
ance Pack
ackag
age)
e)
Depending on the setting, a course-cor recting
brake application occurs in thefo llowing situa-
tions (/ page 217).
% The availability of this setting is dependent on
th e countr y.Ifth e function is activated in
countries in which this setting is no not
tav ailable,
a lane-cor recting brake application is initiated
in thefo llowing situations:
Lane markings weredetected on bo thsides of
th e lane. The front wheel drives over a contin-
uous lane marking.
Standard setting
R Lane markings weredetected on bo thsides of
th e lane. The front wheel drives over a contin-
uous lane marking.
R A lane marking and the edge of a /rm road
sur face weredetected. The front wheel drives
ove r a lane marking on the edge of the /rm
ro ad sur face.
R A lane marking and an oncoming vehicle were
de tected. The front wheel drives overth e lane
marking. Driving and parking
215
215

AIR BODY
CONTROL includes thefo llowing com-
ponents and functions:
R air suspension with variable spring rate
R automatic le vel control system
R speed-dependent lo wering toreduce fuel con-
sum ption
R manually selectable high-le vel setting for
gr eater ground clearance
R ADS PLUS (Adaptive Damping System with
constant damping forc e adjustment)
R DYNAMIC SELECT switch and le vel button
Suspension se Suspension se tting and v
tting and vehicle lev
ehicle level per dr
el per driv
ive pr
e pr o-
o-
gr
gr am
am
Drive prog ram A:
R The suspension setting is comfor table.
R The vehicle is set tothe normal le vel.
R When driving at speeds of appr oximately
125 km/h or abo ve,th eve hicle is lo wered.
R When driving at speeds below appr oximately
80 km/h, theve hicle is raised again. Drive prog
ram ;:
R The suspension setting is comfor table.
R The vehicle is set tolow le vel -1.
R The vehicle is not lo wered any fur ther if you
are tr avelling at higher speeds.
Drive prog ram C:
R The suspension setting is /rmer.
R The vehicle is set tolow le vel -1.
R The vehicle is not lo wered any fur ther if you
are tr avelling at higher speeds.
Drive prog ram B:
R The suspension setting is even /rmer.
R The vehicle is set tolow le vel -1.
R The vehicle is not lo wered any fur ther if you
are tr avelling at higher speeds.
Individual suspension settings can be called up in
drive prog ram = (/page 166). Se
Se tting t tting t he v
he vehicle lev
ehicle lev el
el &
W
WARNING
ARNING Risk of accident because vehi-
cle le vel is too high
Driving characteristics may be impaired.
The vehicle can driT outwards, forex ample,
when steering or cornering. #
Choose a vehicle le vel which is suited to
th e driving style and thero ad sur face
conditions. &
W
WARNING
ARNING Risk of ent rapment from vehi-
cle lo wering
When lo wering theve hicle, other people could
become trapped if their limbs are between the
ve hicle body and the tyres or underneath the
ve hicle. #
Make sure no one is underneath the
ve hicle or in the immediate vicinity of the
wheel ar ches when theve hicle is being
lo we red. 218
218
Driving and parking

R
When driving between 60 km/h and 80 km/h
fo r appr oximately thre e minutes.
R ATer changing a drive prog ram using the
DY NAMIC SELECT switch.
The vehicle is adjusted tothe height of the last
active drive prog ram.
Low
Low er
ering t
ing t he v
he vehicle
ehicle #
Press button 1.
Indicator lamp 2goes out. The vehicle is
adjusted tothe height of the active drive pro-
gr am.
Oper
Oper ation wit
ation wit h a tr
h a trailer or bicy
ailer or bicy cle r
cle rack
ack
If th e electrical connection tothe transport equip-
ment, such as a trailer or a bicycle rack , is es tab-
lished cor rectl y:
R Uptoappr oximately 30 km/h: the high le vel
can be selected rega rdless of the drive pro-
gr am.
R From appr ox. 30 km/h: theve hicle is adjusted
to normal le vel,re ga rdless of drive prog ram. R
R
e
ev
ver
er sing camera
sing camera F
F
unction of t
unction of t herev
he rever
ersing camera
sing camera
If yo u ha veactivated the function in the multime-
dia system (/ page 227),the image from the
re ve rsing camera is displa yed in the media display
when reve rsege ar is selected. Dynamic guide
lines show the path theve hicle will take with the
cur rent steering angle. This helps youto orient
yo urself and toavo id obstacles when reve rsing.
The reve rsing camera is only an aid. It is not a
substitute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and par k-
ing remains with you. Make sure that there are no
persons, animals or objects etc., in the manoeu-
vring area while manoeuvring and parking.
The guide lines in the media display show the dis-
ta nces toyour vehicle. The dis tances displa yed
only apply toroad le vel.
Depending on theve hicle equipment, you can
select from thefo llowing vie ws:
R Normal view
R Wide-angle view
R Trailer view The area behind
theve hicle is displ ayed as a mir-
ro r image, as in the inside rearview mir ror.
V
V ehicles wit ehicles wit hout P
hout Par
arking Assis
king Assist P t PARK
ARK TR
TRONIC
ONIC
The following camera vie wsare available in the
multimedia system: Normal view
1 Driven sur face depending on the cur rent
steering angle (dynamic)
2 Guide lines at a distance of app roximately
0.5 m, 1.0 m, 1.5 mand 3.0 m from there ar
area
3 Lane marking the course the tyres will take
with the cur rent steering angle (dynamic) 220
220
Driving and parking