brake MERCEDES-BENZ E-CLASS CABRIOLET 2020 Service Manual

Ve
hicles with Active Parking Assist and Driv‐
ing Assistance Package: ifth eve hicle has
been braked toast andstill on multi-lane, sepa‐
ra te car riag ewa ysby Active Dis tance Assi st
DISTRONIC, it can au tomatical lyfollow theve hi‐
cle in front, driving off again within 30 seconds.
If a critical situation is de tected when driving off,
a visual and acoustic warning is given indicating
th at the driver must now take control of theve hi‐
cle. The vehicle is not accelerated any fur ther.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 180). Ac
tive Di stance Assist DISTRO NIC displaysin
th e instrument clus ter Assi
stance graphic
1 Route-based speed adap tation: type of route
eve nt (/ page 199)
2 Vehicle in front
3 Distance indica tor
4 Set specified di stance
Pe rm anent status display of Active Di stance
Assist DIST RONIC
R k (white):Ac tive Dis tance Assi st
DISTRONIC selected, speci fied dis tance set R
k (green): Active Dis tance Assi st
DISTRONIC acti ve, specified dis tance set and
ve hicle de tected
R r: Route-based speed adap tation acti ve
( / page 199).
The stored speed is shown along with the per‐
manent status display and highlighted on the
speedome ter.When Active Dis tance Assi st
DISTRONIC is passi ve,th e speed is gr eyed out.
% On mo torw ays or high-speed major roads,
th e green çvehicle symbol is displa yed
cyclically when theve hicle is ready topull
aw ay.
% Ifyo u depress the accelerator pedal be yond
th e setting of theAc tive Dis tance Assi st
DISTRONIC, the sy stem is switched topas‐
sive mode. The çsuspended message
appears in the multifunction displa y.
Display on the speedome ter
The stored speed is highlighted on the speedom‐
et er. If the speed of theve hicle in front or the
speed adjustment is less than thestored speed
due tothero ute event ahead, the segments in Driving and parking
19 5

th
e speedome ter light up. Deactivation of Active
Dis tance Assi stDISTRONIC, as well as altera‐
tions tothe speed due tomanual or auto matic
adoption of the maximum permissible speed, are
displa yed in the control feedback of the multi‐
function display on a single line.
Sy stem limits
The sy stem may be impaired or may not function
in thefo llowing situations, forex ample:
R In sn ow,ra in, fog, heavy spr ay, if there is
gl are, in direct sunlight or in greatlyvarying
light conditions.
R The windsc reen in the area of the camera is
dirty, mis ted up, damaged or co vered.
R Ifth era dar sensors are dirty or co vered.
R In multi- stor ey car pa rks or on roads with
st eep uphill or downhill gradients.
R Ifth ere are nar rowvehicles in front, such as
bicycles or mo torcyc les.
In addition, on slippery roads, braking or accel‐
erating can cause one or se veral wheels tolose
traction and theve hicle could then skid. Do not use
Active Dis tance Assi stDISTRONIC in
th ese situations. &
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis‐
ta nce Assi stDISTRONIC.
R Ifth estored speed is called up and is
considerably faster or slo werth an the
cur rently driven speed.
R IfAc tive Dis tance Assi stDISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. #
Take into account the tra ffic situation
before calling up thestored speed. &
WARNING Risk of accident due toinsuf‐
fi cient decele ration byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC brakes
yo ur vehicle with up to50% of the possible
deceleration. If this decele ration is not su ffi‐
cient, Active Dis tance Assi stDISTRONIC
alerts you with a visual and acoustic warning. #
Adjust your speed and main tain a suita‐
ble dis tance from theve hicle in front. #
Brake theve hicle yourself and/or take
ev asive action. &
WARNING Risk of accident if de tection
function of Active Dis tance Assi st
DISTRONIC is impaired
Ac tive Dis tance Assi stDISTRONIC does not
re act or has a limited reaction:
R when driving on a dif fere nt lane or when
ch anging lanes 19 6
Driving and pa rking

R
topedestrians, animals, bicycles or sta‐
tionary vehicles, or unexpected obs tacles
R tocompl extraf fic conditions
R tooncoming vehicles and crossing traf fic
As a result, Active Dis tance Assi st
DISTRONIC may nei ther give warnings nor
inter vene in su chsituations. #
Alw ays obser vethe tra ffic conditions
carefully and react accordin gly. Operating
Active Di stance Assist DIST RONIC
Re quirements:
R The elect ric pa rking brake is released.
R ESP ®
is activated and is not inter vening.
R The transmission is in position h.
R Allthe doors are closed.
R Check of thera dar sensor sy stem has been
successfully comple ted. #
Tooperate Active Di stance Assist
DISTRO NIC:press there spective button
with only one finger or swipe on the control
panel.
Switching between Active Di stance Assist
DISTRO NIC and the limiter #
Press I. Ac
tivating the variable limi ter or Active Dis‐
tance Assi stDISTRONIC #
Toactivate with out astored speed: press
M, NorJ. Active Di stance
Assist DIST RONIC: remo veyour foot from
th e accelerator pedal.
or #
Toactivate with ast ored speed: press
J. Active Di stance Assist DIST RONIC:
re mo veyour foot from the accelera tor pedal.
The cur rent vehicle speed is stored and
maintained (Active Dis tance Assi st
DISTRONIC) or limited (variable limiter) by
th eve hicle.
Increasing or reducing the speed #
Toinc rease thestored speed: swipe upwards
from the bottom of control panel 1.
R The stored speed is increased by1 km/h. #
Todecrease thestored speed: swipe down‐
wa rds from theto p of control panel 1.
R The stored speed is decreased by
1 km/h.
or Driving and parking
197

#
Brief lypress MorN onthe lo wer sec‐
tion of control panel 1.
The stored speed is increased or reduced by
10 km/h.
or #
Press and hold Monthe upper section or
N onthe lo wer section of control panel
1.
The stored speed is increased or reduced in
increments of 10km/h.
or #
Accelerate theve hicle tothe desired speed. #
Press Monthe upper section of control
panel 1.
Ad opting the limit speed shown in the instru‐
ment clus ter: #
Activate Active Dis tance Assi stDISTRONIC. #
Press J.
The speed limit displa yed in the instrument
clus ter is adopte d asthestored speed. The
ve hicle adapts its speed tothat of theve hicle
in front, but only up tothestored speed. Pulling
away with Active Di stance Assist
DISTRO NIC #
Activate Active Dis tance Assi stDISTRONIC
and remo veyour foot from the brake pedal. #
Press J.
or #
Depress the accelerator pedal briefly and
fi rm ly.
The functions of Active Dis tance Assi st
DISTRONIC continue tobe car ried out.
Re ducing or inc reasing the specified dis‐
tance from theve hicle in front #
Press K.
The Ò display appears under theç
st atus displa y.
The specified dis tance is reduced byone
le ve l.
If th e lo west leve l is already selec ted, the
selection jumps tothe highest le vel. Deactivating
Active Di stance Assist
DISTRO NIC &
WARNING Risk of an accident due to
Ac tive Dis tance Assi stDISTRONIC being
acti vewhen you lea vethe driver's seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Dis tance Assi st
DISTRONIC only, theve hicle can rollaw ay. #
Alw ays deactivate Active Dis tance
Assi stDISTRONIC and secure theve hi‐
cle topreve nt it from rolling away
before you lea vethe driver's seat. #
Press ±.
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter venes, Active Dis tance Assi st
DISTRONIC is deacti vated. Fu
nction of Active Speed Limit Assi st If speed limit
change between 20 km/h and
13 0 km/h is de tected and the automatic adop‐
tion of speed limits is active, it will be automati‐ 19 8
Driving and pa rking

R
T-junctions, roundabouts and tollst ations
R Turns and exits
R Traf fic jams ahead (only wi thLive Traf fic
Information )
% When theto llst ation is reached, Active Dis‐
ta nce Assi stDISTRONIC adopts the speed as
th estored speed.
Also, the speed is reduced if the turn signal indi‐
cator tochange lanes is swit ched on and one of
th efo llowing situations is de tected:
R Turning off at junctions
R Driving on slowing-down lanes
R Driving on lanes adjacent toslowing-down
lanes
The driver is responsible forch oosing theright
speed and observing other road users. This
applies in particular tojunctions, roundabouts
and traf fic lights, as route-based speed adap ta‐
tion does not brake theve hicle toast andstill.
When route guidance is active, thefirs t speed
adjustment is car ried out automaticall y.Ifthe
turn signal indica tor is switched on, the selected ro
ute is confirmed and fur ther speed adjustment
is activated.
Speed adap tation is cancelled in thefo llowing
cases:
R Ifth e turn signal indicator is switched off
before thero ute event.
R Ifth e driver depresses the accelerator or
brake pedal during the process.
Sy stem limits
Ro ute-based speed adap tation does not take
ri ght of wayre gulations into account. The driver
is responsible for complying with road traf fic
re gulations and driving at a suitable speed.
In dif ficult conditions, the speed selection made
by the sy stem may not alw ays be suitable:
R unclear roads
R road nar rowing
R wetro ad sur faces, snow or ice
R when towing a trailer
In these situations the driver must inter vene
acco rding ly. &
WARNING Risk 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 calcula‐
te dro ute
R If map data is not up-to-date or available
R Intheeve nt of roadwor ks
R In bad weather or road conditions
R Ifth e accelera tor pedal is depressed
R Intheeve nt of electronical lydispla yed
speed limitations #
Adapt the speed tothe traf fic situation. Setting
route-based speed adaptation Re
quirements:
R Active Dis tance Assi stDISTRONIC is acti va‐
te d. 200
Driving and parking

Ac
tivating/deactivating Active Steering
Assist
Re quirements:
R ESP ®
is activated, but is not inter vening.
R Active Dis tance Assi stDISTRONIC is acti va‐
te d.
Multimedia sy stem:
4 © 5
Settings 5
Quick access #
Select aAct. Steer. Asst . Fu
nction of Active Eme rgency Stop Assist If
th e sy stem de tects that the driver has not
st eered theve hicle for a considerable period of
time or has remo vedth eir hands from thesteer‐
ing wheel, display 1appears in the multifunc‐
tion displa y.Ifth e driver still does not steer the
ve hicle, or gives no confirmation tothe sy stem,
a wa rning tone sounds in addition tothe visual
wa rning message.
If th e driver still does not respond tothewa rn‐
ing, theBeginning emergency stop message
appears in the multifunction displa y.Ifth e driver
st ill does not respond, Active Dis tance Assi st
DISTRONIC reduces the speed. The vehicle is
decelerated in stages toast andstill.
Depending on the count ry, 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 park‐
ing brake.
R Active Dis tance Assi stDISTRONIC is ended
R The vehicle is unloc ked. R
If possible, an emer gency call is placed to
th e Mercedes-Benz emer gency call centre
The driver can cancel the deceleration at any
time byper form ing one of thefo llowing actions:
R Steering
R Braking or accelerating
R Deactivating Active Dis tance Assi st
DISTRONIC Fu
nction of Active Traf fic Jam Assist Ac
tive Traf fic Jam Assi sthelps you when in traf‐
fi c jams on multi-lane roads with separate car ria‐
ge wa ys by automatically pulling away within up
to 60 seconds and with mode rate steering
manoeuvres. It orients itself using theve hicle in
front and lane markings. Active Traf fic Jam
Assi stautomatically main tains a safe dis tance
from theve hicle in front and vehicles cutting in.
Ac tive Traf fic Jam Assi strequ ires you, as the
driver, tokeep your hands on thesteering 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. Driving and parking
203

Obser
vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 180).
Ac tive Traf fic Jam Assi stactivates automatically
when all of thefo llowing conditions are me t:
R You are in a traf fic jam on a mo torw ay or
high-speed major road.
R Active Dis tance Assi stDISTRONIC is acti va‐
te d and active (/ page197).
R Active Brake Assi stisavailable
(/ page 186).
R Active Steering Assist is activated and active
(/ page 203).
R Active Traf fic Jam Assi stis activated
(/ page 204).
R You are tra velling no faster than 60 km/h.
The following symbol is displa yed in the instru‐
ment clus ter when the sy stem is active: Sy
stem limits
The sy stem limitations of Active Dis tance Assi st
DISTRONIC and Active Steering Assist apply to
Ac tive Traf fic Jam Assi st (/ page 201). Ac
tivating/deactivating Active Traf fic Jam
Assist Multimedia sy
stem:
4 © 5
Settings 5
Quick access #
Select ¬. Fu
nction of Hill Start Assist Hill
Start Assist holds theve hicle for a short
time when pulling away on a hill under thefo l‐
lowing conditions:
R The transmission is in position hork.
R The elect ric pa rking brake is released.
This gives you enough time tomo veyour foot
from the brake pedal tothe accelera tor pedal
and depress it before theve hicle begins toroll
aw ay. &
WARNING Risk of accident and inju ry
due totheve hicle rolling away
Af ter a short time, Hill Start Assist no lon ger
holds theve hicle. #
Swiftly mo veyour foot from the brake
pedal tothe accelera tor pedal. Do not
lea vetheve hicle when it is being held
by Hill Start Assist. HOLD function
HOLD function
The HOLD function holds
theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. while waiting in traf fic.
The HOLD function is only an aid. The responsi‐
bility forth eve hicle safely standing still remains
with the driver.
Sy stem limits
The HOLD function is only intended toprov ide
assis tance when driving and is not a su fficient
means of safeguarding theve hicle against rolling
aw ay when stationar y. 204
Driving and parking

R
The incline must not be greater than 30%.
Ac tivating/deactivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being active when you
lea vetheve hicle
If th eve hicle is only braked with the HOLD
function it could, in thefo llowing situations,
ro llaw ay:
R Ifth ere is a malfunction in the sy stem or
in the po wer supp ly.
R Ifth e HOLD function is deactivated by
depressing the accelera tor pedal or brake
pedal, e.g. byave hicle occupant. #
Alw ays secure theve hicle against roll‐
ing away before you lea veit. Re
quirements:
R The vehicle is stationar y.
R The driver's door is closed or the seat belt on
th e driver's side is fastened. R
The engine is running or has been au tomati‐
cally switched off bythe ECO start/ stop
function.
R The electric parking brake is released.
R Active Dis tance Assi stDISTRONIC is deacti‐
va ted.
R The transmission is in position h,kori.
Ac tivating the HOLD function #
Dep ress the brake pedal, and af ter a short
time quickly depress fur ther until theë
display appears in the multifunction displa y. #
Release the brake pedal.
Deactivating the HOLD function #
Depress the accelerator pedal topull away.
or #
Depress the brake pedal until theë dis‐
play disappears from the multifunction dis‐
pla y.
The HOLD function is deactivated in thefo llow‐
ing situations:
R Active Dis tance Assi stDISTRONIC is acti va‐
te d. R
The transmission is shif tedto position j.
R The vehicle is secured with the electric park‐
ing brake.
In thefo llowing situations, theve hicle is held by
transmission position jand/or bythe electric
parking brake:
R The seat belt is unfas tened and the driver's
door is opened.
R The vehicle is switched off.
R There is a malfunction in the sy stem or the
po we r supp lyis insuf ficient. DY
NA MIC BODY CONT ROL function DY
NA MIC BODY CONTROL continuously adjusts
th ech aracteristics of the suspension dampers to
th e cur rent operating and driving conditions.
The da mping is tuned individually for each wheel
and is af fected bythefo llowing factors:
R The road sur face conditions
R Vehicle load
R The drive program selected Driving and parking
205

%
The contra stof the display may be impaired
by abrupt, direct sunlight or by other light
sources, e.g. when driving out of a garage . In
th is case, pay particular attention.
% Have the display repaired or replaced if, for
ex ample, pixel er rors considerably restrict its
use.
See the no tes on cleaning the 360° Camera
(/ page 301).
Calling up the view of the 360° Camera
using reve rsege ar
Re quirements:
R The Auto reversing camera function is activa‐
te d in the multimedia sy stem (/ page219). #
Shift toreve rsege ar. #
Select the desired view in the multimedia
sy stem (/ page215). #
If, af ter shifting toreve rsege ar, the image of
th ere ve rsing camera is not shown: switch off
th e ignition, press and hold thec button,
switch on the ignition and engage reve rse
ge ar again. Swit
ching reve rsing camera automatic mode
on/off
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
parking remains with you. Make sure that no
persons, animals or objects etc. are in the
manoeuvring range. Pay attention to your sur‐
ro undings and be ready tobrake at all times.
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Camera & parking #
Switch Auto reversing camera on or off.
Opening the camera co ver of the reve rsing
camera
Multimedia sy stem:
4 © 5
Settings 5
Assistance
5 Camera & parking #
Select Open camera cover.
% The camera co ver closes auto maticallyafter
some time or af ter an ignition cycle. Ac
tive Parking Assist Fu
nction of Active Parking Assist
Ac tive Parking Assist is an elect ronic pa rking
assis tance sy stem, which uses ultrasound with
th e assis tance of there ve rsing camera and 360°
Camera. When you are driving forw ards up to
appr oximately 35 km/h, the sy stem automati‐
cally measures parking spaces on bo thsides of
th eve hicle.
Ac tive Parking Assist of fers thefo llowing func‐
tions:
Ve hicles with reve rsing camera
R Parking in parking spaces parallel tothero ad
Ve hicles with 360° Camera
R Parking in parking spaces parallel tothero ad
R Parking in parking spaces perpendicular to
th ero ad (optionally either forw ards or
re ve rse)
R Parking in parking spaces that are delineated
on lyby markings (for example at thero ad‐
side)
R Exiting a parking space parallel tothero ad Driving and parking
219

#
Select Exit space 2. #
If,forex ample, thePlease engage forward
gear message appears in the media display:
select the cor responding transmission posi‐
tion.
The vehicle mo ves out of the parking space
and is brought toast andstill byActive Park‐
ing Assist (at an angle tothe direction of
tra vel).
The Ø Parking Assist finished, take con-
trol of vehicle message appears. #
Take control of theve hicle and comple tethe
parking process. %
The vehicle path shown on the media display
may dif fer from the actual vehicle path. The
turn signal indicator is switched on automati‐
cally when theex iting procedure begins.
Yo u are responsible for selecting the turn signal
indicator in accordance with the traf fic condi‐
tions. If necessar y,select the turn signal indica‐
to r according ly. Manoeuvring assistant
Fu
nction of Drive Away Assist
Drive AwayAssi stcan reduce the se verity of an
impact when pulling away. If an obs tacle is
de tected in the direction of tr avel, theve hicle's
speed is brief lyreduced toappr ox. 2 km/h. If a
critical situation is de tected, theÉ symbol
appears in the media displa y.
% You can cancel an inter vention byDrive
Aw ayAssi stat any time bydeactivating
Pa rking Assist PARKTRONIC (/ page211). &
WARNING Risk of accident caused by
limited de tection per form ance of Drive
Aw ayAssi st
Drive AwayAssi stcannot al ways clearly iden‐
tify objects and traf fic situations. #
Alw ays pay careful attention tothe traf‐
fi c situation; do not rely on Drive Away
Assi stalone. #
Be prepared tobrake or swer veas nec‐
essar y,prov ided the tra ffic situation
permits and that it is safe totake eva‐
sive action. Drive
AwayAssi stis only an aid. It is not a sub‐
st itute foryo ur attention tothe sur roundings.
The responsibility for safe manoeuvring and
parking remains with you. Make sure that no
persons, animals or objects etc. are in the
manoeuvring range.
A risk of a collision may arise in thefo llowing sit‐
uations, forex ample:
R Ifth e inter changes the accelerator and brake
pedals. Driving and parking
223