2020 MERCEDES-BENZ E-CLASS CABRIOLET brake sensor

%
A brake application may be inter rupte d at
any time if yousteer slightly in the opposite
direction.
Sy stem limits
No lane-cor recting brake application occu rsin
th efo llowing situations:
R You clear lyand actively steer, brake or accel‐
erate.
R If a driving saf ety sy stem inter venes, su chas
ESP ®
,Ac tive Brake Assi stor Active Blind
Spot Assi st.
R You ha veadop ted a sporty driving style with
high cornering speeds or high rates of accel‐
eration.
R When ESP ®
is deactivated.
R When driving with a trailer, the electrical con‐
nection tothe trailer has been cor rectly
es tablished.
R If a loss of tyre pressure or a defective tyre
has been de tected and displ ayed.
If yo u deactivate theAc tive Lane Keeping Assist
wa rning and the lane markings cann otbe clearly de
tected, it is possible that no lane cor recting
brake application take s place (/ page 234).
The sy stem may be impaired or may not function
particular lyin thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, if there are
highly variable shade conditions or in rain,
sno w,fog or heavy spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
th e sun or reflections.
R Ifth e windscreen in the area of the multi‐
function camera is dirty, or if the camera is
mis ted up, damaged or co vered.
R Ifth ere are no lane markings, or se veral
unclear lane markings are present for one
lane, e.g. around roadwor ks.
R Ifth e lane markings are worn, dark or cov‐
ered.
R Ifth e dis tance from theve 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.
R Vehicles with Driving Assistance Pack‐
age: ifth era dar sensors in there ar bumper
are dirty or co vered in snow and an obs tacle
is de tected in your lane, no lane-cor recting
brake application take s place.
Ac tivating/deactivating Active Lane Keeping
Assist
Multimedia sy stem:
4 © 5
Settings 5
Quick access
5 Active Lane Keeping Assist #
Activate or deacti vate the function. Driving and parking
233

#
Clean the net of thefo lding draught stop with
a damp clo thin conjunction with the care
products and cleaning agents recommended
and appr ovedby Mercedes-Benz. Note
s on care of car parts &
WARNING Risk of entrapment if the
windscreen wipers are swit ched on while
th e windscreen is being cleaned
If th e windscreen wipers are set in motion
while you are cleaning the windscreen or
wiper blades, you can be trapped bythe
wiper arm. #
Alw ays switch off the windscreen wip‐
ers and the ignition before cleaning the
windscreen or wiper blades. &
WARNING Risk of bu rns from theta il‐
pipe and tailpipe trims
The exhaust tailpipe and tailpipe trims can
become very hot. If you come into contact with
these parts of theve hicle, you could
burn yourself. #
Alw ays be particular lycareful around
th eta ilpipe and theta ilpipe trims and
supervise children especially closely in
th is area. #
Allow vehicle parts tocool down before
to uching them. To
avo id damage totheve hicle, obser vethe
no tes on cleaning and care of thefo llowing vehi‐
cle parts.
Wheels and rims
R Use wate r and acid-free wheel cleaners.
R Do not use acidic wheel cleaners toremo ve
brake dust. This could damage wheel bolts
and brake components.
R Toavo id 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
R Clean wind owsinside and outside with a
damp clo thand with a cleaning agent recom‐
mended for Mercedes-Benz.
R Do not use dry clo ths or abrasive or solvent-
based cleaning agents toclean the inside of
windo ws.
Wi per blades
R Fold out the wiper blades and clean them
using a damp clo th.
R Do not clean the wiper blades too of ten.
Ex terior lighting
R Clean the lenses with a wet sponge and mild
cleaning agent, e.g. car sha mpoo.
R Only use cleaning agents or cleaning clo ths
th at are suitable for plast ic lenses.
Sensors
R Clean the sensors in the front and rear
bumpers with a soft clo thand car shampoo
(/ page 181).
R When using a high -pressure cleaner,maintain
a minimum dis tance of 30 cm. Maintenance and care
301

It is only permissible
tofit a di fferent wheel
size in theev ent of a flat tyre in order to
drive tothe specialist workshop.
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.
R Obser vethe maximum permissible speed for
th e M+S tyres fitted. If
th e tyre's maximum speed is below that of
th eve hicle, this must be indicated byan
appropriate label in the driver's field of
vision.
R Run in new tyres at moderate speeds forthe
fi rs t10 0 km.
R Replace the tyres af ter six years at the latest,
re ga rdless of wear.
R When replacing with tyres that do not
fe ature run-flat characteristics: vehicles
with MOExtended tyres are not equipped
with a TIREFIT kit at thefa ctor y.Equip the
ve hicle with a TIREFIT kit af terre placing with
tyres that do not feature run-flat characteris‐
tics, e.g. winter tyres.
% You can permanently limit the maximum
ve hicle speed for driving with winter tyres
(/ page 194).
Fo r more information on wheels and tyres, con‐
ta ct a qualified specialist workshop.
Be sure toalso obse rveth efo llowing fur ther
re lated subjects:
R Notes on tyre pressure (/ page 326)R
Tyre pressure table (/ page 327)
R Notes on the emer gency spa rewheel
(/ page 340) Note
s on inter changing wheels &
WARNING Risk of inju rythro ugh dif fer‐
ent wheel sizes
Inter changing the front and rear wheels can
se verely impair the driving characteristics.
The disk brakes or wheel suspension compo‐
nents may also be damaged. #
Onlyinter change the front and rear
wheels if the wheels and tyres ha vethe
same dimensions. Inter
changing the front and rear wheels if the
wheels or tyres ha vediffere nt dimensions can
re nder thege neral operating pe rmit in valid.
The wear pat tern s on the front and rear wheels
dif fer:
R front wheels wear more on the tyre shoulder Wheels and tyres
333

:
Active Light Sy stem inopera‐
tive ...................................................... 368
¯ AdBlue sy stem fault Emer. op.:
max. XXX km/h Start not poss. in
XXX km ................................................ 411
¯ AdBlue sy stem fault Emer‐
ge ncy op. in XXX miles See Owner's
Manual ................................................. 411
¯ AdBlue sy stem fault Engine
st art not possible ................................ .412
¯ AdBlue sy stem fault See Own‐
er's Manual .......................................... 411
5 Add 1 litre engine oil when
next refuelling ...................................... 413
é ATTENTION ASSIST inoperative
.............................................................3 92
é ATTENTION ASSIS T:Take a
break! .................................................. 392
: Automatic driving lights inoper‐
ative .................................................... 367 Á
Change key bat teries ................. 363
J Check brake fluid le vel.............. .384
# Check brake pads See Owner's
Manual ................................................ 384
5 Check eng. oil le v.when next
re fuelling .............................................. 412
ï Check trailer hit chlock .............. 371
h Check tyre(s) .............................. 406
! Clean the fuel filter .................... .377
J Close boot separator .................. 366
ÿ Coolant Stop vehicle Switch
engine off ............................................ 376
_ Currently una vailable Camera
view restricted ..................................... 396
ç Currently unavailable Radar
sensors dirty .......................................3 95
! currently una vailable See Own‐
er's Manual ........................................ .397
÷ currently una vailable See Own‐
er's Manual ........................................ .398 5
Engine oil le vel cannot be
measured ............................................ .414
5 Engine oil le velRe duce oil le vel.. 413
5 Engine oil le velSt op vehicle
Switch engine off ................................. 413
5 Engine oil pressu reStop
Switch off engine ................................. 414
ä Fault Drive at max. 80 km/h ...... 389
6 Front left malfunction Consult
wo rkshop (e xample)............................ 360
_ Front left seat backrest not
loc ked (e xamp le).................................. 374
& inoperative Battery low ..............370
& inoperative Refuel vehicle ..........3 70
& inoperative See Owner's Man. ...370
! inoperative See Owner's Man‐
ual ....................................................... 398
÷ inoperative See Owner's Man‐
ual ....................................................... 399 Index
437

!
Turn on the ignition torelease
th e parking brake ................................ 384
d Vehicle is operational Switch
off ignition before exiting .................... .371
É Vehicle rising Please wait.......... .391
É Vehicle rising .............................. 391
h Warning tyre defect .................... 407
h Wheel sensor(s) missing ............ 405
K While stationar y,apply the
brake before operating the soft top .....3 65
Ø XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss. .............................................. 41 0
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........393
Ac tive Blind Spot Assi stinope rative .... 394
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 394 Ac
tive bonnet malfunction See Own‐
er's Manual .......................................... 373
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 400
Ac tive Brake Assi stFunctions limited
See Owner's Manual ............................ 401
Ac tive Dis tance Assi stavailable
again .................................................. .387
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........386
Ac tive Dis tance Assi stinope rative ....... 387
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........394
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 394
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual .......................................... 391 Ac
tive Steering Assist cur rently
una vailable due tomultiple emer‐
ge ncy stops ......................................... 388
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........387
Ac tive Steering Assist inoperative .......388
Ac tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .........388
Ac tive Stop-and-Go Assist inopera‐
tive See Owner's Manual ..................... 389
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........369
Ad aptive Highbeam Assist inopera‐
tive ...................................................... 369
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .369
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .369 Index
439

Ty
re press. monitor inoperative No
wheel sensors .................................... .405
Ty re pressure Check tyres ...................408
Ty re(s) ove rheated ...............................4 07
Wi thout changing gear, consult work‐
shop ....................................................3 79
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock ...............................74
Locking (emergency key) ...................... .78
Opening (from the inside) ......................75
Po we r closing function .......................... 78
Un locking (emer gency key) .................... 78
Un locking (from the inside) ...................75
Door cont rol panel .................................... .14
Draught stop
Care .................................................... 300 Dr
aw bar
see Tow- bar sy stem
Drive Away Assist .................................... 223
Drive Away Assist
see Pr otection against collision
Drive position Enga ging ..............................................1 66
Drive prog ram display ............................. 16 3
Drive prog rams
see DYNA MIC SELECT
Driver's seat see Seat
Driving abroad Symmetrical low beam ........................ 12 2
Driving saf ety sy stem ............................ .180
ABS (Anti-lock Braking Sy stem) ........... 182
Ac tive Brake Assi st.............................. 186
Ad aptive brake lights .......................... .190
BA S (Brake Assi stSystem) .................. 182
Cameras .............................................. 181
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 185
ESP ®
Crosswind Assi st........................ 185ESP
®
trailer stabilisation .................... .185
Overview ............................................. 182
Ra dar and ultrasonic sensors .............. 181
Re sponsibility ...................................... 180
ST EER CONTROL ................................. 185
Driving sy stem
DY NA MIC BODY CONTROL .................. 205
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st
see Active Dis tance Assi stDISTRONIC
see Active Emergency Stop Assist
see Active Lane Keeping Assist
see Active Parking Assist
see Active Speed Limit Assi st
see Active Steering Assist
see AIR BODY CONTROL
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise control
see Driving saf ety sy stem
see HOLD function
see Limiter
see Parking Assist PARKTRONIC
see Reversing camera Index
441

Fo
il co vering
Ra dar and ultrasonic sensors .............. 181
Fo lding draught stop
Care .................................................... 300
Fitting .................................................... 86
Re moving ............................................. .86
Fr ag rance
see Fragrance sy stem
Fr ag rance sy stem .................................... 14 2
Inserting/removing theflacon ............ .142
Setting ................................................. 14 2
Fr ee software ............................................ 34
Fr equencies
Mobile phone ...................................... 342
Tw o-w ayradio ...................................... 342
Fr ont airbag .............................................. .42
Fr ont passenger seat
see Seat
Fu el .......................................................... .348
Ad ditives .............................................3 48
Diesel ................................................. .348
E10 ...................................................... 347
Fu elreser ve ........................................ 349 Low outside
temp eratures ...................3 48
Pe trol ................................................... 347
Quality (diesel) .................................... 348
Quality (p etro l) .................................... .347
Re fuelling ............................................ 16 9
Sulphur content ................................... 347
Ta nk content ....................................... 349
Fu nction seat
see Door cont rol panel
Fu ses ........................................................ 322
Before replacing a fuse ........................ 322
Fu se assignment diagram ...................3 22
Fu se box in the boot ............................3 24
Fu se box in the engine compartment .. 323
Fu se box in the front passenger foot‐
we ll ...................................................... 324
Fu se box on the dashboard ................. 324
No tes .................................................. 322 G
Garage door opener Cleari ngthe memory ........................... 17 7
Opening or closing the door ................1 77
Programming buttons .......................... 175
Re solving problems ............................. 17 7Synchronising
thero lling code ............ .176
Gearshift recommendation .....................167
Genera l operating permit number
(EU) .......................................................... .343
Genuine parts ............................................ 21
Genuine wood (Care) .............................. 302
Glide mode .............................................. .168 H
Handbrake see Electric parking brake
Handling characteristics (unusual) ....... 325
HANDS-FREE ACCESS ................................ 80
Haza rdwa rning lights ............................ .124
Head airbag ............................................... 42
Head le vel heating (AIRSCARF) ..............107
Head restra int
Fr ont (adjusting mechanically) .............1 00
Re ar (fitting/removing) ........................ 102444
Index