brake sensor MERCEDES-BENZ E-CLASS CABRIOLET 2018 User Guide

R
Ifth e lane markings are worn, dark or cov‐
ered.
R Ifth e dis tance totheve hicle in front is too
short and thus the lane markings cann otbe
de tected.
R Ifth e lane markings change quickl y,e.g.
lanes branch off, cross one ano ther or
mer ge.
R Ifth e car riag ewa y is very nar row and wind‐
ing.
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 sn ow,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 de tected, no lane-cor‐
re cting brake application occu rs.Ac
tivating/deactivating Active Lane Keeping
Assist (vehicles with Parking Assist
PA RKTRONIC) &
WARNING Risk of accident despi te
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. #
Alw aysst eer, brake or accelera teyour‐
self, especially if Active Lane Keeping
Assist warnsyo u or makes a lane-cor‐
re cting brake application. &
WARNING Risk of accident despi teinter‐
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. #
Alw ays make sure that there is suf fi‐
cient di stance tothe side forot her traf‐
fi c or obs tacles. &
WARNING Risk of accident despi teLane
Ke eping Assist
Lane Keeping Assist cann otalw ays clearly
de tect lane markings.
In su chcases, Lane Keeping Assist can:
R give an unnecessary warning
R not give a warning #
Alw ays pay particular attention tothe
traf fic situation and keep within the
lane, especially if Active Lane Keeping
Assist alerts you. Be sure
toobser vethe sy stem limitations of
Ac tive Lane Keeping Assist. 244
Driving and pa rking

Obser
vethefo llowing information: Note
s on cleaning and car eA voiding vehicle damage
Wheels/rims Usewate r and acid-free wheel cleaners. R
Do not use acidic wheel cleaners toremo vebrake dust.
This could damage wheel bolts and brake components.
R Toavoid cor rosion of the brake discs and brakepads, drive
th eve hicle for a few minutes af ter cleaning before parking
it. The brake discs and brakepads 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 lenses with 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 lenses.
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, main
tain a minimum dis‐
ta nce of 30 cm.
Re versing camera
and 360° Camera R
Open the camera co ver with the multimedia sy stem
(→ page 228).
R Use clean water and a soft clo thtoclean the camera lens. Do not use a high-pressure cleaner.408
Maintenance and care

*
NO
TEDama getosummer tyres at low
ambient temp eratures At
low ambient temp eratures, tears could
fo rm when driving with summer tyres, caus‐
ing permanent damage tothe tyre. #
Attemp eratures below 7 °C, use M+S
tyres. Ac
cessory pa rts th at are not appr ovedfo ryo ur
ve hicle byMercedes-Benz or are not being used
cor rectly can impair the operating saf ety.
Before pu rchasing and using non-appr oved
accesso ries, visit a qualified specialist workshop
and enquire about:
R Suitability
R Legal stipulations
R Factory recommendations &
WARNING Risk of accident wi thhigh
per form ance tyres
The special tyre tread in combination with
th e optimised tyre compound, means that th
erisk of skidding or hydroplaning on wet
ro ads is inc reased.
In addition, the tyre grip is greatly reduced at
a low outside temp erature and tyre running
te mp erature. #
Switch on the ESP ®
and adapt your
driving style accordingly. #
Use M+S tyres at outside temp eratures
of less than 50 °F. Obse
rveth efo llowing when selecting, fitting and
re placing tyres:
R Countr y-specific requirements for tyre
appro valth at define a specific tyre type for
yo ur vehicle.
Fu rthermore, the use of cer tain tyre types in
cer tain regions and areas of operation can
be highly beneficial.
R Only use tyres and wheels of the same type
(summer tyres, winter tyres, MOEx tended
tyres) and the same make.
R Only fit wheels of the same size on one axle
(left and right). It is only permissible
tofit a di fferent wheel
size in theeve nt of a flat tyre in order to
drive tothe specialist workshop.
R Only fit tyres of the cor rect size onto the
wheels.
R Do not make any modifications tothe brake
sy stem, the wheels or the tyres.
The use of shims or brake dust shields is not
permitted and may in validate theve hicle's
ge neral operating pe rmit.
R Vehicles with a tyre pressure monitoring
sy stem: allfitted wheels mu stbe equipped
with functioning sensors forth e tyre pres‐
sure monitoring sy stem.
R Attemp eratures below 7 °C, use winter tyres
or all-season tyres mar ked M+S for all
wheels.
Wi nter tyres bearing thei snowflake
symbol in addition tothe M+S marking pro‐
vide the best possible grip in wintry road
conditions.
R For M+S tyres, only use tyres with the same
tread. Wheels and tyres
445

Display messages
Possible causes/consequences and M
MSolutions #
Stop theve hicle as soon as possible, paying attention toroad and traf fic conditions. Do not continue driv‐
ing. #
Consult a qualified specialist workshop. #
Do not top up the brake fluid. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances. #
Do not top up the brake fluid. #
Consult a qualified specialist workshop.
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R soiling of the sensors
R heavy rain or snow
R extended country driving wi thout other traf fic, e.g. in the desert
Driving sy stems and driving saf ety sy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: #
Pull over and stop theve hicle, paying attention toroad and traf fic conditions. #
Clean all senso rs (→page 407). 478
Displaymessa ges and warning/indicator lamps

ÛPlease
wait Charging high- volt‐
age battery .......................................... 500
PRE- SAFE inoperati veSee Owner's
Manual ................................................ 483
Ra dar sensors dirty See Owner's
Manual .................................................4 78
_ Rear left seat backrest not
loc ked (Example) .................................. 51 5
h Rectify tyre pressure ....................51 0
Re duce speed ...................................... 512
Ø Refill Ad Blue Eng. start not pos‐
sible .................................................... 504
ØRe fill Ad Blue See Owne r’s Man‐
ual .......................................................5 04
!Re lease parking brake .................476
¸ Replace air cleaner ...................... 497
ÀRe placekey See Owner's Man‐
ual ........................................................ 514
Á Replace key ................................ .513
8 Reser vefuel le vel........................ 500 6Re
stra int sys. malfunction Con‐
sult workshop ...................................... 486
Re versing not poss. Consult work‐
shop ....................................................5 07
Risk of vehicle rolling Driver door
open and transmission not in P ...........507
Ru n Flat Indicator inope rative .............. 512
# See Owner's Manual ................... 496
Speed limit (winter tyres) XXX km/h ... 494
ÐSt eering malfunction Incre ased
ph ysical ef fort See Owner's Manual .....516
Ð Steering malfunction Stop
immediately See Owner's Manual ........516
St op vehicle Lea veengine running
Wa itTransmission cooling ...................506
#St opvehicle Lea veengine run‐
ning ..................................................... 497
#St opvehicle See Owner's Man‐
ual .......................................................4 98
ÉSt opvehicle Vehicle too low ........ 491 çsuspended
..................................4 93
bSwitch off lights .......................... 523
bSwitch on headla mps.................. 524
To shift out of P or N,depress brake
and start engine .................................. 507
K Top lo wering ............................... 522
ØTo p upAdBlue Perf.re duced in
XXX miles See Owner's Manual ...........506
Ø Top up AdBlue Perf.re duced:
XXX km/h Nostart in XXX km ............ 505
To p up coolant See Owner ’sManual ... 497
¥To p upwasher fluid ...................... 51 8
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 490
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 489
Tr af fic Sign Assi stinope rative ............. 488
ïTr ailer coupling extending… .........51 5
Tr ansmission Malfunction Stop ........... 506 Index
553

!Tu
rnon the ignition torelease
th e parking brake ................................ 473
h Tyre press. monitor cur rently
una vailable .......................................... .511
h Tyre press. monitor inoperative
No wheel sensors ................................ .511
h Tyre press. monitor inoperative ....511
Ty re pressure Check tyres ...................508
Ty re(s) ove rheated ...............................5 12
É Vehicle rising Please wait............ 488
ÉVe hiclerising ...............................4 90
hWa rning tyre defect .....................509
hWheel sensor(s) missing ..............511
K While stationar y,apply the
brakes before operating the soft top.
.............................................................5 22
Wi thout changing gear, consult work‐
shop ....................................................5 07
Display on the windscreen
see Head-up display Distance control
see Active Dis tance Assi stDISTRONIC
Di stance recorder
see Trip dis tance
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock ...............................76
Locking (emergency key) ...................... .80
Opening (from the inside) ......................76
Un locking (emer gency key) .................. .80
Un locking (from the inside) .................... 76
Door cont rol panel .................................... .14
Draught stop
Care .................................................... 406
Dr aw bar
see Tow- bar sy stem
Drive Away Assist .................................... 234
Drive position Engaging .............................................. 17 0
Drive prog ram display ............................. 16 8
Drive prog rams
see DYNA MIC SELECT Driver's seat
see Seat
Driving abroad Symmetrical dipped beam ...................1 27
Driving lights see Automatic driving lights
Driving saf ety sy stem ............................ .186
ABS (Anti-lock Braking Sy stem) ........... 187
Ac tive Brake Assi st.............................. 19 3
Ad aptive brake lights .......................... .198
BA S (Brake Assi stSystem) .................. 188
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 19 2
ESP ®
Crosswind Assi st........................ 19 2
ESP ®
trailer stabilisation .................... .192
Overview .............................................. 187
Ra dar sensors ...................................... 187
Re sponsibility ...................................... 186
ST EER CONTROL ................................. 19 3
Driving sy stem
DY NA MIC BODY CONTROL .................. 215
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st554
Index