2018 MERCEDES-BENZ E-CLASS CABRIOLET sensor

Function of Cross Traf fic Alert
00CE Also read the instructions on Blind Spot
Assist (
→page 193).
Ve hicles with Blind Spot Assis t:Dr ivers can
also be warned of any crossing traf fic when
back ing out of a parking space. If a critical situa‐
tion is de tected, a warning symbol appears on
th e camera image of the multimedia sy stem. If
th e driver does not respond tothewa rning, the
ve hicle's brakes can be applied automaticall y.To
do this, the function uses thera dar sensors in
th e bumper. The area adjacent totheve hicle is
continually monitored.
If th era dar sensors are obstructed byvehicles
or other objects, de tection is not possible.
The Cross Traf fic Alert function is acti veunder
th efo llowing conditions:
RIf Blind Spot Assist is activated.
RIf th eve hicle is backing up at walking pace.
RIfth e maneuvering assis tant function is acti‐
va ted in the multimedia sy stem.
The Cross Traf fic Alert function is not available
on inclines. Deactivating/activating
the maneuvering
assistant
Multimedia sy stem:
00869HKLFOH00CFk $VVLVWDQFH00CF&DPHUD
3DUNLQJ00CF0DQHXYHULQJ $VVLVW
00BBSwitch the function on 0073or off 0053.
ATTENTION ASSIST
Fu nction of ATTENTION ASSIST
AT TENTION ASSIST assists you on long, mon oto‐
nous journe ys, e.g. on free ways and trunk roads.
If AT TENTION ASSIST de tects indicators of fati‐
gue or increasing lapses in concentration on the
part of the driver, it suggests taking a brea k.
AT TENTION ASSIST is only an aid. It cann ot
alw ays de tect fatigue or lapses in concentration
until too late. The sy stem is not a substitute for a
we ll-res ted and attentive driver. On long jour‐
ne ys,tak ere gular breaks in good time that allow
fo r ade quate recuperation.
Yo u can choose between two settings.
RStandard: normal sy stem sensitivity
RSensitive: higher system sensitivity. The
driver is warned earlier and the attention
le ve l de tected byATTENTION ASSIST is adap‐
te d accordingly.
If dr owsiness or inc reasing lapses in concentra‐
tion are de tected, the$77(17,21 $66,67 7DNH
D %UHDN warning appears in the Instrument Dis‐
pla y.Yo u can ackn owledge the message and
ta ke a break where necessar y.Ifyo u do not take
a break and ATTENTION ASSIST continues to
de tect increasing lapses in concentration, you
will be warned again af ter a minimum of
15 minutes.
Driving and parking 18
9

Blind Spot AssistandActive Blind Spot
Assi st
Function of Blind Spot Assist and Active
Blind Spot Assi st
Blind Spot Assist uses two lateral,rear-facing
ra dar sensors tomonitor the area up to130ft
(40 m) behind your vehicle and 10ft(3 m)
directly next to yourvehicle.
If a vehicle is de tected at speeds ab ove appr ox‐
imately 8 mph (12 km/h) and this vehicle subse‐
qu ent lyenters the monitoring range di rectly next
to yo urvehicle, thewa rning lamp in the outside
mir ror lights up red.
If a vehicle is de tected close to yourvehicle in
th e lateral monitoring range and youswit chon
th e turn signal indicator in the cor responding
direction, a warning tone sounds once. The red
wa rning lamp in the outside mir rorflashes. If the
turn signal indica torre mains on, all other de tec‐
te dve hicles are indicated only bytheflashing of
th ere dwa rning lamp.
If yo uove rtake a vehicle quickl y,no warning is
given.
0071 WARNING Risk of accident despite Blind
Spot Assist
Blind Spot Assist does notreact tovehicles
approaching and overtaking you at a greatly
di fferent speed.
As a result, Blind Spot Assist cannot warn
drivers in this situation.
00BBAlw ays pay careful attention tothe traf‐
fi c situation and maintain a safe dis‐
ta nce at the side of theve hicle.
Blind Spot Assist and Active Blind Spot Assi st
are only aids. They may failto detect some vehi‐
cles and are no substitute for attentive driving.
Alw ays ensure that there is suf ficient dist anceto
th e side forot her road users and obs tacles.
Sy stem limitations
The sy stem may be limited in thefo llowing situa‐
tions:
Rth e sensors are dirty or co vered
Rpoor visibility, e.g. due tofog, heavy rain,
snow or spr ay
Rnarrow vehicles, e.g. bicycles, are within the
monitoring range
Wa rnings may be issued in er ror when driving
close tocrash barr iers or similar solid lane bor‐
ders. Warnings may be inter rupte d when driving
alongside long vehicles, e.g. truc ks,fo r a pro‐
longed time.
Blind Spot Assist is not operational when reve rse
ge ar is engaged.
Fu nction of braking applications (Active
Blind Spot Assist)
If Ac tive Blind Spot Assi stdetects a risk of a side
impact in the monitoring range, a cours e-cor‐
re cting brake application is car ried out. This is
designed tohelp youav oid a collision.
The course-cor recting brake application is availa‐
ble in the speed range between appr oximately
20 mph (30 km/h) and 125mp h (200 km/h).
Driving and parking 19
3

RThe distance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
RThe lane markings change quickl y,e.g. lanes
branch off, cross one ano ther or mer ge.
RThe car riag ew ay isvery nar row and winding.
Ve hicles with Driving Assistance pac kage or
Driving Assistance Plus pa ckage: Active Lane
Ke eping Assist uses radar sensors tomonitor
se veral areas around theve hicle. If thera dar
sensors in there ar bumper are dirty or co vered
with snow ,th e sy stem may be impaired or may
not function. If an obs tacle in the lane in which
yo u are driving has been detected, no lane-cor‐
re cting brake application occurs .
Ac tivating Active Lane Keeping Assist
0071
WARNING Risk of accident despite
Ac tive Lane Keeping Assist warning
A lane-cor recting brake application cannot
al wa ys bring theve hicle back into the origi‐
nal lane.
00BBAlw aysst eer, brake or accelera teyour‐
self, especially if Active Lane Keeping
Assist warnsyo u or makes a lane-cor‐
re cting brake application.
0071
WARNING Risk of accident despite inter‐
ve ntion of Active Lane Keeping Assist
Ac tive Lane Keeping Assist does not de tect
traf fic conditions or road users. In very rare
cases, the sy stem may make an inappropri‐
ate brake application, e.g. af ter intentional ly
driving over a solid lane marking.
The brake application can be inter rupte d at
any time if yousteer slightly in the opposite
direction.
00BBAlw ays make sure that there is suf fi‐
cient dist ancetothe side forot her traf‐
fi c or obs tacles.
0071
WARNING Risk of accident despite Lane
Ke eping Assist
Lane Keeping Assist cannot always clearly
de tect lane markings.
In such cases, Lane Keeping Assist can:
Rgive an unnecessary warning
Rnot give a warning
00BBAlw ays pay particular attention tothe
traf fic situation and keep within the
lane, especially if Active Lane Keeping
Assist alerts you.
Re quirement
The driving speed is at least 40 mph (60 km/h).
Driving and parking 19
7

00BBAro ute has been received: select6WDUW
5RXWH *XLGDQFH IURP %HJLQQLQJ RI 5RXWH or
6WDUW 5RXWH *XLGDQFH IURP &XUUHQW 3RVLWLRQ .
Ro ute guidance starts from the selected
position.
Ro ute guidance with cur rent traf fic re ports
Traf fic information overview
Tr af fic re ports are receive d using Live Traf fic
Information and are used forro ute guidance.
This service isuna vailable in some countries.
00CE There may be dif fere nces between the traf fic
re ports receive d and the actual road and
traf fic conditions.
Impor tant information on Live Traf fic Informa‐
tion:
RCu rrent tra ffic reports are receive d via the
Internet connection.
RThe traf fic situation is update d at short,regu‐
lar inter vals.
RThe status of the service subscription can be
displa yed (→page 261). Information on
theve hicle's position is regular ly
sent toDaimler AG. The da tais immediately ren‐
de red anonymous byDaimler AGand forw arded
to the tra ffic data pr ovider. Using this data, traf‐
fi c re ports releva nt totheve hicle's position are
sent totheve hicle. The vehicle acts as a sensor
fo rth eflow of traf fic and helps toimpr ovethe
qu ality of the traf fic re ports.
If yo u do not wish totransmit your vehicle posi‐
tion, you can ha vethis service deactivated at an
authorized Mercedes-Benz Center.
Displaying subscription information
Requ irements:
RThevehicle is equipped with Live Traf fic
Information.
Multimedia sy stem:
00861DYLJDWLRQ00CFZ 2SWLRQV
The subscription expiry date is automatically dis‐
pla yed:
Rone month before theex piry date
Rone week before theex piry date
Ron theex piry date
00BBTo displ aymanuall y:select /LYH 7UDIILF 6XE
VFULSWLRQ ,QIR.
Depending on thest atus, one of thefo llowing
messages appears:
Rth e period of validity forth e subscription
is displa yed.
Rthe subscription has expired.
00CE The subscription can be extended:
Rat an au thorized Mercedes-Benz Center
Rvia an MB Info call tothe Mercedes-Benz
Cus tomer Assis tance Center
Display ingthe traf fic map
Requ irements:
RFor Live Traf fic Information: theve hicle is
equipped with a communication module fea‐
turing an activated, integrated SIM card.
RWhen theve hicle is star ted, the communica‐
tion module automatically es tablishes an
Internet connection. Traf fic information is
made available shortly af terw ards.
Multimedia sy stem 261

Observethefo llowing information:
Note s on cleaning and car eA voiding vehicle damage
Wheels/rims Usewate r and acid-free wheel cleaners.
RDo not use acidic wheel cleaners toremo vebrake dust.
This could damage wheel bolts and brake components.
RTo avoid cor rosion of the brake discs and brake pads,
drive theve hicle for a few minutes af ter cleaning before
parking it. The brake discs and brake pads warm up and
dry out.
Wi ndo ws
Cleanthe windo wsonthe inside and outside using a damp
clo thand cleaning agents recommended byMercedes-Benz. Do not use dry clo
ths or abrasive or sol vent-based cleaning
agents toclean the inside of windo ws.
Wi per blades
Fold out the wiper blades and clean them using a damp clo th.D o not clean the wiper blades too of ten.
Ex terior lighting
Cleanthe windo wswith a wet sponge and mild cleaning
agent, e.g. car sha mpoo. Only use cleaning agents or cleaning clo
thsth at are suitable
fo r plast ic covers.
Sensors Cleanthe sensors in the front and rear bumper and in the
ra diator grille with a soft clo thand car shampoo. When using a high-pressure cleaner, mainta
in a minimum dis‐
ta nce of 11.8 in (30 cm).
328
Maintenance and care

The system checks the tire pressure and the tire
te mp erature of the tires fitted totheve hicle by
means of a tire pressure sensor.
New tire pressure sensors, e.g. in winter tires,
are automatically taught-in thefirs t time they are
driven.
The tire pressure and the tire temp erature
appear in the multifunction display
(
→page 202).
If th ere is a subs tantial pressure loss or if the
tire temp erature is excessive, a warning will be
given:
RVi a display messages (→page 425).
RViath e0077 warning lamp in the instrument
clus ter (→page 459).
It is the driver's responsibility toset the tire
pressure tothere commended cold tire pressure
suitable forth e operating situation. Set the tire
pressure for cold tires using a tire pressure
ga uge. Notethat the cor rect tire pressure forth e
cur rent operating situation must firs t be taught-
in to the tire pressure monitoring sy stem. In most cases,
the tire pressure monitoring sys‐
te m will auto matically update the new refere nce
va lues af teryo u ha vechanged the tire pressure.
Yo u can, ho wever,also update there fere nce val‐
ues byrestarting the tire pressure mon

itoring
sy stem manually (→page 359).
Sy stem limitations
The sy stem may be impaired or may not function
in thefo llowing situations:
RIf th e tire pressure is set incor rectly.
RIfth ere is a sudden pressure loss caused, for
ex ample, byafo re ign object penetrating the
tire.
RIf th ere is a malfunction caused byano ther
ra dio signal source.
Make sure toobser vethefo llowing fur ther rela‐
te d subjec t:
RNotes on tire pressure (→page 354)
Checking the tire pressure with the tire pres‐
sure moni toring sy stem
Requ irement:
RThe ignition is switched on. On-board computer:
00866HUYLFH00CF7LUHV
One of thefo llowing displa ysappears:
RCur rent tire pressure and tire temp erature of
th e individual wheels:
R7LUH SUHVVXUH ZLOO EH GLVSOD\HG DIWHU GULYLQJ D
IHZ PLQXWHV
R7LUH 3UHVVXUH 0RQLWRU $FWLYH: thete ach-in
process of the sy stem is not yet comple te.
The tire pressures are already being moni‐
to re d.
00BBCompare the tire pressure with there com‐
mended tire pressure forth e cur rent operat‐
358
Wheels and tires

Observethefo llowing when selecting, ins talling
and replacing tires:
ROnly use tires and wheels of the same type
(summer tires, winter tires, MOEx tended
tires) and the same make.
ROnly ins tall wheels of the same size on one
axle (left and right).
It is only permissible toins tall a dif fere nt
wheel size in theeve nt of a flat tire in order
to drive tothe specialist workshop.
ROnly ins tall tires of the cor rect size onto the
wheels.
RVe hicles with a tire pressure monitoring
sy stem: all mounte d wheels must be equip‐
ped with functioning sensors forth e tire
pressure monitoring sy stem.
RAt temp eratures below 45 °F (7 °C), use win‐
te r tires or all-season tires mar ked M+S for
all wheels.
Wi nter tires bearing the004D snowflake sym‐
bol in addition tothe M+S marking pr ovide
th e best possible grip in wintry road condi‐
tions.
RFo r M+S tires, only use tires with the same
tread.
RObser vethe maximum permissible speed for
th e M+S tires ins talled.
If th is is below theve hicle's maximum speed,
th is must be indicated in an appropriate label
in the driver's field of vision.
RRu n in new tires at moderate speeds forth e
fi rs t 60 miles (100 km).
RRe place the tires af ter six years at the latest,
re ga rdless of wear.
RWhen replacing with tires that do not fea‐
ture run-flat characteristics: vehicles with
MOExtended tires are not equipped with a
TIREFIT kit at thefa ctor y.Equip theve hicle
with a TIREFIT kit af terre placing with tires
th at do not feature run-flat characteristics,
e.g. winter tires.
Fo r more information on wheels and tires, con‐
ta ct a qualified specialist workshop.
Be sure toalso observ eth efo llowing fur ther
re lated subjects:
RNo tes on tire pressure (→page 354)
RTire and Loading Info rmation placard
(→page 360)
RTi re size designation, load-beari ng capacity,
speed rating and load ind ex(→page 368)
RTire pressure table (→page 355)
Note s onrotating wheels
0071
WARNING Risk of injury thro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels if the
wheels or tires ha vediffere nt dimensions
may se verely impair the driving characteris‐
tics.
The wheel brakes or wheel suspension com‐
ponents may also be damaged.
00BBRo tate front and rear wheels only ifth e
wheels and tires are of the same dimen‐
sions.
Wheels and tires 37
5

0071WARNING ‑ Risk of fire and injury from
windshield washer concentrate
Wi ndshield washer concentrate is highly
fl ammable. It could ignite if it comes into
con tact wi thhot engine component parts or
th eex haust sy stem.
00BBMake sure that no windshield washer
concentrate spills out next tothefiller
opening.
0075 NO
TEDama getotheex terior lighting
due tounsuit able wind shieldwasher fluid
Uns uitable wind shieldwasher fluid may dam‐
age the plastic sur face of theex terior light‐
ing.
00BBOnly use windshield washer fluid whic h
is also suit ablefor use on plast ic surfa‐
ces, e.g. MB SummerFit or MB Winter‐
Fit.
0075 NO
TEBlocked spr aynozzles caused by
mixing windshield washer fluids
00BBDo not mix MB SummerFit and MB Win‐
te rFit with other windshield washer flu‐
ids.
Do not use distilled or de-ionized water asthefill
le ve l sensor may be triggered er roneously.
Re commended windshield washer fluid:
RAbo vefreezing point: e.g. MB SummerFit
RBelow freezing point: e.g. MB WinterFit
Fo rth e cor rect mixing ratio referto the informa‐
tion on the antif reeze conta iner.
Mix thewa sher fluid with the windshield washer
fl uid all year round.
Re frigerant
Note s onrefrigerants
Obser vethe no tes on operating fluids
(
→page 387). 0075
NO
TEDama gedue toincor rect refriger‐
ant
If a non-appr ovedre frigerant is used, the cli‐
mate control sy stem may be damaged.
00BBOnly use there frigerant R‑134a
0075 NO
TEDama getothe climate control
sy stem due toincor rect refrigerant com‐
pressor oil
00BBOnly use refrigerant compressor oil that
has been appr ovedby Mercedes-Benz.
00BBDo not mix the appr ovedre frigerant
compressor oil with a dif fere nt refriger‐
ant compressor oil.
Wo rkon the climate control sy stem may only be
car ried out byaqu alified specialist workshop. All
applicable regulations, as well as SAEstandard
J639, must be adhered to.
392
Tech nical da ta