belt MERCEDES-BENZ E-CLASS CABRIOLET 2018 Service Manual

#
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. #
Adjusting the AIRSCARF vent (→ page 154).
Ma kesure that there are no objects co vering the
intake grille on the back of the head restra int. Ste
ering wheel Ad
justing the steering wheel manually &
WARNING Risk of inju rythro ugh adjust‐
ing vehicle 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 ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion #
Before starting the engine: adjust the
driver's seat, the head restra ints, 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 eke y with you and lock theve hicle.
This also applies tothe digital vehicle
ke y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. 11 0
Seats and stowing

wa
rds, e.g. during sudden braking or in the
ev ent of an accident.
R Ifth is we rethe case, theve hicle occu‐
pant would be forc ed into the seat belt by
th ere ar ben chseat/rear seat or bythe
seat backrest. The seat belt would not be
able toprov ide the intended pr otection
and could cause additional injur y.
R Objects or loads in the boot cann otbe
re stra ined bythe seat backrest. #
Make sure that the seat backrest and
th ere ar ben chseat/rear seat are
engaged before everytrip. Bo
th seat backrests can be folded forw ards sep‐
aratel y. #
Pull switch 1. #
Foldthe cor responding seat backrest for‐
wa rds. Fo
lding there ar seat backrest back
* NO
TEDama getothe seat belt The seat belt could become trapped and
thus
damaged when folding back the seat back‐
re st. #
Make sure that the seat belt is not trap‐
ped when folding back the seat back‐
re st. #
Movethe driver's or front passenger seat for‐
wa rds, if necessar y. Seats and
stowing 117

Mir
rors Operating
the outside mir rors &
WARNING Risk of inju rythro ugh adjust‐
ing vehicle 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 ints, thesteering wheel or the mir‐
ro r while theve hicle is in motion
R ifyo ufast enyour seat belt while theve hi‐
cle is in motion #
Before starting the engine: adjust the
driver's seat, the head restra ints, the
st eering wheel or the mir ror and fasten
yo ur seat belt. &
WARNING Risk of accident due tomis‐
judgement of dis tances when using the
outside mir ror
The outside mir rors reflect objects on a
smaller scale. The objects in view are in fact
closer than they appear.
As a result, you may misjud gethe dis tance
between you and thero ad user driving
behind you, e.g. when changing lanes. #
Therefore, alw ays look over your shoul‐
der in order toensure that you are
aw are of the actual dis tance between
yo u and thero ad users driving behind
yo u. 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. Light and sight
13 9

Electric pa
rking brake Electric parking brake function (app
lying
automatically) &
WARNING Risk of accident and inju ry
due tochildren left unat tended in the
ve hicle
If ch ildren are left unat tended in theve hicle,
th ey could:
R ope rate ve hicle equipment and become
trapped, forex ample.
In addition, children could also set theve hi‐
cle in motion, forex ample, by:
R releasing the parking brake.
R shifting the automatic transmission out of
park position j.
R starting the engine. #
Never lea vechildren and animals unat‐
te nded in theve hicle. #
When leaving theve hicle, alw aysta ke
th eke y with you and lock theve hicle.
This also applies tothe digital vehicle ke
y if the "Digital Vehicle Key" function
is activated via Mercedes me connect. The electric parking brake is applied if
the trans‐
mission is in position jand one of thefo llow‐
ing conditions is fulfilled:
R The engine is switched off.
R The seat belt tongue is not inser ted in the
seat belt buckle of the driver's seat and the
driver's door is opened.
% Toprev ent application: pull the handle of the
electric parking brake.
In thefo llowing situations, the electric parking
brake is also applied:
R Active Dis tance Assi stDISTRONIC is bringing
th eve hicle toast andstill.
R The HOLD function is keeping theve hicle sta‐
tionar y.
R Active Parking Assist is keeping theve hicle
st ationar y. This is only
the case if one of thefo llowing con‐
ditions is also fulfilled:
R The engine is switched off.
R The seat belt tongue is not inser ted in the
seat belt buckle of the driver's seat and the
driver's door is opened.
R There is a sy stem malfunction.
R The po wer supply is insuf ficient.
R The vehicle is stationary for a lengt hyperiod.
When the electric parking brake is applied, the
re d! indicator lamp appears in the instru‐
ment clus ter.
The electric parking brake is not automatically
applied if the engine is switched off bythe ECO
st art/ stop function.
Electric parking brake function (releasing
automatically)
The electric parking brake is released when the
fo llowing conditions are fulfilled:
R The engine is running.
R The seat belt tongue is inser ted into the seat
belt buckle of the driver's seat. 184
Driving and pa rking

R
The transmission is in position hork and
yo u depress the accelera tor pedal or you
shift from transmission position jtoh or
k.
R Ifth e transmission is in position k,the boot
lid must be closed.
If th e seat belt tongue is not inser ted into the
seat belt buckle of the driver's seat, thefo llow‐
ing conditions must be fulfilled:
R The driver's door is closed.
R You mo vethe transmission out of transmis‐
sion position joryou ha veprev iously
driven fasterthan 3 km/h.
R Ifth e transmission is in position k,the boot
lid must be closed.
When the electric parking brake is released, the
re d! indicator lamp in the instrument clus‐
te r goes out. Applying/releasing
the electric pa rking
brake manually
Applying #
Push handle 1.
The red! indicator lamp appears in the
instrument clus ter. %
The electric parking brake is only securely
applied if the indicator lamp is lit continu‐
ously.
Re leasing #
Swit chon the ignition. #
Pull handle 1.
The red! indicator lamp in the instru‐
ment clus ter goes out.
Emer gency braking #
Press and hold handle 1.
When theve hicle has been braked to a
st andstill, the electric parking brake is
applied. The red! indicator lamp appears
in the instrument clus ter. Note
s on parking up theve hicle If
yo u lea vetheve hicle par ked up for longer than
fo ur we eks, the disconnected battery may be
damaged bydeep dischar ge.
If yo u lea vetheve hicle par ked up for longer than
six weeks, it may suf fer disuse dama ge. Driving and pa
rking 18 5

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 limitations
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.
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 activated when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
R Ifth ere is a malfunction in the sy stem or
in the po wer supply.
R Ifth e HOLD function is deactivated by
depressing the accelerator pedal or the
brake pedal, e.g. byave hicle occupant.
R Ifth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with or if the battery is disconnec‐
te d. #
Alw ays deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle. *
NO
TEDama gefrom auto matic braking When
Active Brake Assi st,Ac tive Dis tance
Assi stDISTRONIC or the HOLD function are
activated, theve hicle brakes autonomously
in cer tain situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash 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 not acti‐
va ted.
R The transmission is in position h,kori. 214
Driving and pa rking

Ac
tivating the HOLD function #
Dep ress the brake pedal and af ter a short
time 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 When Active Dis tance Assi stDISTRONIC is
acti vated.
R The transmission is switched toposition j.
R When theve hicle is secured with the electric
parking brake. In
thefo llowing situations, theve hicle is held by
th e transmission position jorby the electric
parking brake:
R When the seat belt is unfas tened and the
driver's door is opened.
R When the engine is switched off.
R When there is a malfunction in the sy stem or
if th e po wer 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
R The driving style
The drive program can be adjus ted using the
DY NA MIC SELECT switch. AIR
BODY CONT ROL AIR
BODY CONT ROL function
AIR BODY CONTROL is an air suspension sy stem
with variable damping for impr oved driving com‐
fo rt. The all-round le vel control sy stem ensures
th e best possible suspension and const ant
ground clearance, even wi tha laden vehicle.
When driving at speed, theve hicle is lo wered
automatically toimpr ovedriving saf ety and to
re duce fuel consum ption. You also ha vethe
option of manually adjusting theve hicle le vel.
AIR BODY CONTROL includes thefo llowing com‐
ponents and functions:
R air suspension with variable spring rate
R automatic le vel control sy stem.
R speed-dependent lo wering toreduce fuel
consum ption
R manually selec table high-le vel setting for
greater ground clearance
R ADS PLUS (Adaptive Damping Sy stem with
const ant damping forc e adjustment)
R DYNA MIC SELECT switch and le vel button Driving and parking
215

Yo
u can ha vethefo llowing status information for
AT TENTION ASSIST displa yed in the assis tance
menu of the on-board computer:
R The length of the journey since the last
break.
R The attention le vel de term ined byATTENTION
ASSIS T.
If AT TENTION ASSIST is unable tocalculate the
attention le vel and cannot issue a warning, the
System suspended messageappears.
If a warning is given in the instrument displa y,
th e multimedia sy stem of fers to sear chfor a rest
area. You can select a rest area and start naviga‐ tion
tothis rest area. This function can be activa‐
te d and deactivated in the multimedia sy stem.
Sy stem limitations
AT TENTION ASSIST is active in the 60 km/h to
200 km/h speed range.
The functionality of ATTENTION ASSIST is
re stricted, and warnings may be dela yed or not
occur at all in thefo llowing situations:
R Ifyo u ha vebeen driving for less than appr ox‐
imately 30 minutes.
R Ifth ero ad condition is poor (une venro ad
sur face or po tholes).
R Ifth ere is a strong side wind.
R Ifyo u adopt a sporty driving style (high cor‐
nering speeds or high rates of acceleration).
R Ifth e time has been set incor rectl y.
R In active driving situations, if youch ange
lanes and vary your speed frequentl y.The
ATTENTION ASSIST tiredness or alertness
assessment is dele ted and restar ted when con‐
tinuing the journey in thefo llowing situations:
R Ifyo u unfas tenyo ur seat belt and open the
driver's door (e.g. changing drivers or taking
a break).
Setting ATTENTION ASSI ST
Multimedia sy stem:
Vehicle kAssistance ATTENTION
ASSIST
Setting options #
Select Standard, SensitiveorOff.
Suggesting a rest area #
Select Suggest rest area . #
Activate Oor deacti vate the function ª.
If AT TENTION ASSIST de tects fatigue or
increasing la ckof attention, it suggests a
re st area in the vicinit y. #
Select a sugges tedre st area: you are gui‐
ded tothe selected rest area. 236
Driving and parking

Displa
ysinthe media displa y:
SOS READY : emergency call available
SOS NOT READY: the ignition is not on or there
is a malfunction with the emer gency call sy stem.
During an active emer gency call, Gappears
in the displa y.
Yo u can find more information on there gional
av ailability of the Mercedes-Benz emer gency call
sy stem at: http://www.mercedes-benz.com/
connect_ecall.
% Ifth ere is a malfunction in the emer gency
call sy stem (e.g. a fault with the speaker,
microphone, airbag, SOS button), a cor re‐
sponding message appears inthe multifunc‐
tion display of the instrument clus ter.
Tr iggering an automatic emer gency call
Re quirements:
R The ignition is switched on.
R The star ter battery is suf ficiently charge d.
If re stra int sy stems such as airbags or seat belt
te nsioners ha vebeen activated af ter an acci‐ dent,
the Mercedes-Benz emer gency call sy stem
may automatically initiate an emer gency call.
The emergency call has been made:
R Avo ice connection is made tothe Mercedes-
Benz emer gency call centre.
R A messa gewith accident data is transmitted
to the Mercedes-Benz emer gency call centre.
The Mercedes-Benz emergency call centre
can transmit theve hicle position data toone
of the public emer gency services call cen‐
tres.
R In cer tain situations data is also transmitted
in thevo ice channel tothe Mercedes-Benz
emer gency call centre.
This allo wsmeasu resfo rre scue, reco very or
to wing toa Mercedes-Benz Service Cent reto
be initiated quickl y.
The SOS button in theov erhead control panel
fl ashes until the emer gency call is finished.
It is not possible toimmediately end an auto‐
matic emer gency call.
If th e Mercedes-Benz emer gency call sy stem
cann otconnect tothe Mercedes-Benz emer‐ ge
ncy call centre, the emer gency call is au tomat‐
ical lysent tothe public emer gency services call
centre.
If no connection can be made tothe public
emer gency services, a cor responding message
appears inthe displa y. #
Dial the emer gency call number 11 2onyour
mobile phone.
If an eme rgency call has been initiated:
R Remain in theve hicle if thero ad and traf fic
conditions permit youto do so until a voice
connection is es tablished with the emer‐
ge ncy call centre operator.
R Based on the call, the operator decides
whe ther it is necessary tocall rescue teams
and/or the police tothe accident site.
R If no vehicle occupant answers, an ambu‐
lance is sent totheve hicle immediately.
Tr iggering a manual emer gency call #
Press and hold the SOS button in theove r‐
head control panel for at least one second. 354
Multimedia sy stem

Note
s on cleaning and car eA voiding vehicle damage
Ta ilpipes
Clean with cleaning agents recommended byMercedes-Benz,
particular lyin the winter and af terwa shing theve hicle. Do not use acidic cleaning agents.
Tr ailer hitch R
Remo vetraces of rust on the ball, e.g. with a wire brush.
R Remo vedirt with a lint-free clo th.
R After cleaning, oil or grease the ball head lightl y.
R Obser vethe no tes on care in the trailer hitch manufactur‐
er's operating instructions. Do not clean
the ball neck with a high-pressure cleaner or sol‐
ve nt. Note
s on care of the interior &
WARNING Risk of inju ryfrom pla stic
parts breaking off af terth e use of sol‐
ve nt-based care products
Ca reand cleaning products con taining sol‐
ve nts can cause su rfaces in the cockpit to
become porous. When
the airbags are deplo yed, plastic parts
may break away. #
Do not use any care or cleaning prod‐
ucts containing sol vents toclean the
cockpit. &
WARNING Risk of inju ryor death from
bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, forex ample, cause seat belts to
te ar or fail in an accident. #
Never blea chor dye seat belts. Maintenance and care
409