steering MERCEDES-BENZ E-CLASS CABRIOLET 2018 Manual Online

Display messages
Possible causes/consequences and M
MSolutions
_ Front left seat backrest not
locked (Example) *T
he seat backrest of the cor responding front seat is not engaged. #
Foldthe seat backrest back until it engages.
Ð Steering malfunction Stop
immediately See Owner's
Manual *T
hesteering is malfunctioning Steering capability is considerably impaired. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
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. #
Consult a qualified specialist workshop. #
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. #
Consult a qualified specialist workshop.
Ð *T
he po wer assi stance forth esteering is malfunctioning. &
WARNING Risk of an accident due toaltered steering characteristics
If th e po wer assi stance of thesteering fails partially or comple tely, you will need touse more forc eto steer. 516
Displaymessa ges and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Steering malfunction
Increased physical effort
See Owner's Manual #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y.
Active bonnet malfunction
See Owner's Manual *T
he active bonnet (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered. #
Consult a qualified specialist workshop.
M *T
he bonnet is open. &
WARNING Risk of accident due todriving with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up when theve hicle is in motion and block your vie w. #
Never unlock the engine bonn etwhen driving. #
Before every trip, ensure that the engine bonn etis loc ked. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions. #
Close the bonn et.
C *A
t least one door is open. #
Close all doors.
N *T
he boot lid is open. Display messages and
warning/indicator lamps 517

Ð
Po
we r-assis tedsteering malfunction
(→ page 538)
à AIR
BODY CONTROL malfunction
(→ page 533)
à DY
NA MIC BODY CONTROL malfunc‐
tion (→ page 533) ;
Engine diagnostics (→
page 534)
% Preglow
# Electrical
fault( →page 534)
8 Fu
elreser vewith fuel filler cap loca‐
tion indicator (→ page 534) ?
Coolant
too hot/cold (→ page 534)
h Ty
re pressure monitor (→ page 536)
ï Tr
ailer hit chis not operational or is
swivelling (→ page 538) Saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! Re d indicator lamp, elect ric
parking brake applied
!
Ye llow elect ric pa rking
brake indicator lamp is mal‐
functioning The
red elect ric pa rking brake indicator lamp flashes or is lit. The yellow indicator lamp is also lit if the electric parking
brake malfunctions. #
Obser vethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 527

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! ABS warning lamp The
yellow ABS warning lamp is lit while the engine is running.
ABS is malfunctioning.
If th ere is an additional warning tone, EBD is malfunctioning.
Other drive sy stems and driving saf ety sy stems may also be malfunctioning. &
WARNING Thereisrisk of skidding if EBD or ABS is malfunctioning
If EBD or ABS is malfunctioning, the wheels could lock when braking
The steering capability and braking characteristics are thus se verely impaired. The br aking distance may increase in
an eme rgency braking situation. In addition, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages on the multifunction displa y. #
Consult a qualified specialist workshop.
÷ ESP ®
wa rning lamp lights
up The
yellow ESP ®
wa rning lamp is lit while the engine is running.
ESP ®
is malfunctioning
Other drive sy stems and driving saf ety sy stems may also be malfunctioning. 530
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions &
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tyre pressure and the tyres.
h Ty re pressure monitoring
sy stem warning lamp
fl ashes The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) flashes for appro ximately one
minu teand then remains lit.
The tyre pressu remonitoring sy stem is faulty. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
If th e tyre pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure loss in
one or more of the tyres. Display messages and
warning/indicator lamps 537

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Ty res with insuf ficient tyre pressure ma y,forex ample, af fect theve hicle's handling characteristics, steering and
braking. ‑ #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. #
Consult a qualified specialist workshop. Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Ð Po we rst eering sy stem
wa rning lamp The
red po werst eering sy stem warning lamp is lit while the engine is running.
The po wer-assis tedsteering or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
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. #
Consult a qualified specialist workshop. #
Obser vethe messages on the multifunction displa y.538
Display messages and warning/indicator lamps

Ac
tive Lane Keeping Assist .................... 24 2
Ac tivating/deactivating ...................... .244
Ac tivating/deactivating thewa rning .... 24 5
Fu nction .............................................. 24 2
Setting the sensitivity .......................... 24 5
Sy stem limitations ...............................2 42
Ac tive Parking Assist .............................. 229
Cross Traf fic Alert ............................... 234
Drive AwayAssi st................................ 234
Exiting a pa rking space ...................... .232
Fu nction .............................................. 229
Manoeuvring assi stance ...................... 235
Pa rking ................................................ 230
Sy stem limitations ...............................2 29
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 205
Display ................................................ 205
Fu nction .............................................. 205
Ac tive Steering Assist ............................ .208
Ac tivating/deactivating ...................... .210
Ac tive Emergency Stop Assist .............. 211
Ac tive Lane Change Assi st................... 210
Displ ays in the instrument display .......2 12Fu
nction .............................................. 208
Sy stem limitations ...............................2 08
Ad aptive brake lights ..............................19 8
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive functions, MULTIBEAM LED
see Intelligent Light Sy stem
Ad aptive Highbeam Assist Plus
Fu nction .............................................. 13 2
Switching on/off ................................. 13 3
Ad Blue ®
.................................................... 464
Ad ditives .............................................4 64
Capacity .............................................. 464
Fill le vel .............................................. .257
No tes ................................................... 176
Purity ................................................... 464
Ra nge .................................................. 257
To pping up ...........................................1 77
Ad ditional door lo ck.................................. 76
Ad ditional value range
Setting display content ........................ 255
Ad diti ves.................................................. 465
Ad Blue ®
............................................... 464 Engine oil ............................................ 465
Fu
el ..................................................... 462
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
Ad dress book
see Contacts
Ad justing the balance/ fader
Burmes ter®
sur round sound sy stem ... 390
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ... 390
Ad justing treble, mid- range and bass
settings
Burmes ter®
sur round sound sy stem ... 390
ADS PLUS damping sy stem
see AIR BODY CONTROL
Ad versewe ather light ............................ .132
Af ter-sales service centre
see ASS YST PLUS Index
541

Overview ..............................................3
74
Sea rching for a track ........................... 376
Sea rching for and auth orisingthe
device .................................................. 375
Selecting a media pl ayer ...................... 376
Switching device via NFC ..................... 376
Boot lid Activating/deactivating theta ilgate
opening limiter ...................................... 84
Closing .................................................. 82
HANDS-FREE ACCESS .......................... .82
Locking separa tely ................................ 83
Opening ................................................. 81
Opening dimensions ............................4 68
Boot separator Closing ................................................. .91
Opening .................................................91
Brake Assi stSystem
see BAS (Brake Assi stSystem)
Brake fluid
No tes .................................................. 466
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 19 2Brakes
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
Driving tips ........................................... 161
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 19 2
HOLD function .................................... .214
Limited braking ef fect (salt-trea ted
ro ads) .................................................. .161
New/replaced brakepads/brake
discs .................................................... 16 0
Ru nning-in no tes ..................................1 60
Braking assi stance
see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions .............. 16
To w- starting ........................................ .431
To wing away ........................................ 427
Tr ansporting theve hicle ......................4 29
Wheel change ...................................... 447
Breakdown see Flat tyre Breakdown assistance call
see Mercedes me connect
Burmes ter®
sur round sound sy stem .....3 89
Ad justing the balance/fader ............... 390
Ad justing the sound focus ................... 390
Ad justing treble, mid-range and bass
settings ............................................... 390
Au tomatic volume adjustment ............ .390
Calling up the sound menu .................. 389
Information .......................................... 389
Switching the sur round sound on/off
............................................................ .390
Buttons Steering wheel .................................... 253 C
Call list Making a call ....................................... 342
Overview ............................................. 342
Calling up the sound menu
Burmes ter®
sur round sound sy stem ... 389
Calls ..........................................................3 38
Ac cepting ............................................ 338
Ac tivating functions du ring a call ........ 339 Index
545

Display content
Setting the additional value range ....... 255
Displ aymessage ...................................... 472
Calling up (on-board co mputer) .......... .472
No tes ................................................... 472
Display messages ¯ - - - km/h .................................. .493
ç - - - km/h ................................... 492
È - - - km/h ................................... 494
#12 V battery See Owner's Man‐
ual ....................................................... 498
K 12V battery See Owner's Man‐
ual ....................................................... 521
#48 V battery See Owner's Man‐
ual ....................................................... 500
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........496
Ac tive Blind Spot Assi stinope rative .... 492
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 487 Ac
tive bonnet malfunction See Own‐
er's Manual .......................................... 517
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 485
Ac tive Brake Assi stFunctions limited
See Owner's Manual ........................... 483
Ac tive Dis tance Assi stavailable
again .................................................. .493
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........493
Ac tive Dis tance Assi stinope rative ...... 493
Ac tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 495
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........489
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 490
bAc tive Light Sy stem inoperative .. 523Ac
tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 495
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........488
Ac tive Steering Assist inoperative .......487
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 525
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .525
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .524
¯ AdBlue sy stem fault Engine
st art not possible ................................ 505
¯ AdBlue sy stem fault Perf.
re duced in XXX km See Owner's
Manual ................................................ 504 550
Index

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