warning light MERCEDES-BENZ E-CLASS CABRIOLET 2017 Repair Manual

Display messages
Possible causes/consequences and M
MSolutions
J Close boot separator *T
he boot separator is open. #
Close the boot separator. Lights
Display messages
Possible causes/consequences and M
MSolutions
b Example:Left dipped beam *T
he cor responding light source is defective. #
Consult a qualified specialist workshop.
% LED light bulbs: the display message forth e cor responding lamp only appears when allthe light-emitting diodes
in the lamp ha vefailed.
b Active Light System inoper-
ative *T
he active headlamp s arefaulty. #
Consult a qualified specialist workshop. 460
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
b Intelligent Light System
inoperative *T
he Intelligent Light Sy stem is faulty. The lighting sy stem continues tofunction properly without the functions of
th e Intelligent Light Sy stem. #
Consult a qualified specialist workshop.
b Malfunction See Owner's
Manual *T
heexterior lighting is faulty. #
Consult a qualified specialist workshop.
Ve hicles with a trailer hitch: a fuse may haveblown. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Check the fuses and replace them if necessary .
b AUTO lights inoperative *T
he light sensor is faulty. #
Consult a qualified specialist workshop.
b Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. #
Turn the light switch totheà position. Display messages and
warning/indicator lamps 461

Display messages
Possible causes/consequences and M
MSolutions
b Switch on headlamps *Y
ou are driving without dipped-beam headlamps. #
Turn the light switch totheL orà position.
Adaptive Highbeam Assist
Plus inoperative *A
daptive Highbeam Assist Plus is faulty. #
Consult a qualified specialist workshop.
Adaptive Highbeam Assist
Plus currently unavailable
See Owner's Manual *A
daptive Highbeam Assist Plus is temp orarily una vailable.
The sy stem borders ha vebeen reached (→ page119). #
Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again. The Adaptive Highbeam
Assist Plus available again display message appears.
Adaptive Highbeam Assist
Plus Camera view restric-
ted See Owner's Manual *T
he camera view is restricted. Possible causes:
R dirt on the windscreen in the camera's field of vision
R heavy rain, snow or fog
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 are available again.
If th e display message does not disappear: #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Clean the windscreen. 462
Display messages and warning/indicator lamps

Wa
rning and indicator lamps Overview of
warning and indicator lamps Some sy
stems per form a self-test when the igni‐
tion is switched on. Some warning and indicator
lamps may briefly light up or flash. This behav‐
iour is non-critical. These warning and indicator
lamps only indicate a malfunction if they light up
or flash af terth e engine is star ted or during a
journe y.
Instrument Display (standard) Instrument Display in
theWi descreen Co ck‐
pit Prog
ressive setting (Widescreen Cockpit) If
yo u select the progressive display setting in
ve hicles with a Widescreen Cockpit, the position
of the indicator lamps in the Instrument Display
ch anges.
Wa rning and indicator lamps:
L Dipped beam (→
page114)
T St
anding lights (→ page114)
K Main beam (→
page116)
#! Tu
rn signal light (→ page116)
R Re
ar fog light (→ page114)
ü Seat belt is not
fastened
(→ page 470)
J Brakes (red) (
→page 464)
! ABS malfunctioning (→
page 464)
÷ ESP®
(→ page 464)
å ESP®
OFF (→ page 464)
! Electric parking brake (→
page 464)
Ð St
eering assis tance malfunctioning
(→ page 472)
# Electrical
fault (→ page474)
6 Re
stra int sy stem (→ page 464) Display messages and
warning/indicator lamps 463

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
÷ ESP ®
wa rning lamp flashes The
yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
ESP ®
is inter vening . #
Adapt your driving style to suit thero ad and weather conditions.
÷ ESP ®
wa rning lamp lights
up The
yellow ESP ®
wa rning lamp is lit while the engine is running.
ESP ®
is malfunctioning.
Other driving and driving sa fety sy stems may also be faulty. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisation. In addition, other driving saf ety sy stems are
switched off. #
Drive on carefull y. #
Have ESP ®
ch ecked at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages in the multifunction displa y. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 467

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
6 Re stra int sy stem warning
lamp The
redre stra int sy stem warning lamp is lit while the engine is running.
The restra int sy stem is malfunctioning. &
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or might not
be triggered at all in theeve nt of an accident. This may af fect the seat belt tensioner or airbag, forex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages in the multifunction displa y. #
Consult a qualified specialist workshop immediatel y.Seat belt
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
lights up The
red seat belt warning lamp lights up af terst arting the engine.
In addition, an acoustic warning tone may sound.
The seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt .
If yo u ha veplaced objects on the front passenger seat, thewa rning lamp may remain lit. 47 0
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
fl ashes The
red seat belt warning lamp flashes and an intermit tent wa rning tone sounds.
The driver or front passenger has not fastened their seat belt while theve hicle is in motion. #
Fasten your seat belt .
There are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
· Dis tance warning warning
lamp The
red dis tancewarning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obs tacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the dis tance.
Ac tive Brake Assi st . Displ
aymessa ges and warning/indicator lamps 471

Ty
res Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp lights
up The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. &
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. Display messages and
warning/indicator lamps 477

K
Top lo wering ............................... 459
To p up coolant See Owner ’sManual ....431
¥ Top up washer fluid .................... .458
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 428
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 427
Tr af fic Sign Assi stinope rative ............. 428
jTr ailer coupling extending… .........448
Tr ansmission Malfunction Stop ............ 451
Ty re press. monitor cur rently una vail‐
able .................................................... .443
Ty re press. monitor inoperative ...........444
Ty re press. monitor inoperative No
wheel sensors .................................... .444
Ty re pressure Check tyres ...................441
Ty re(s) ove rheated ...............................4 44
Ty re(s) ove rheated Reduce speed ........445
d Vehicle is operational Switch
off the ignition before exiting .............. .451 É
Vehicle rising Please wait............ 421
ÉVe hiclerising ...............................4 21
h Warning tyre defect .....................443
hWheel sensor(s) missing .............444
K While stationar y,apply the
brakes before operating the soft top.
.............................................................4 59
Wi thout changing gear, consult work‐
shop ....................................................4 50
Dist ance control
see Dis tance Pilot DISTRONIC
Di stance Pil otDISTRONIC ...................... .180
Ac tivating ............................................ 183
Ac tivation conditions ........................... 183
Ac tive Emergency Stop Assist .............1 89
Ac tive Lane Change Assi st.................. 188
Calling up a speed .............................. .183
Deactivating ........................................ 183
Fu nction .............................................. 180
Le ver ................................................... 183
Selecting ............................................. 183
Setting a speed ................................... 183
St oring a speed ................................... 183Sy
stem limits ....................................... 180
Distance recorder .................................. .230
DISTRO NIC
see Dis tance Pilot DISTRONIC
Door Additional door lock .............................. 63
Locking (emer gency key) ...................... .68
Opening (from inside) ............................63
Un locking (emer gency key) .................. .68
Un locking (from inside) ........................ .63
Door cont rol panel .................................... .13
Draught stop
Care .................................................... 357
Drive Away Assist .................................... 207
Drive position Selecting .............................................. 151
Drive prog ram display ............................. 14 8
Drive prog rams
see DYNA MIC SELECT
Driving light see Automatic driving lights 490
Index

Driving saf
ety sy stem ............................ .166
ABS (Anti-lock Braking Sy stem) ........... 167
Ac tive Brake Assi st.............................. 172
Ad aptive brake lights .......................... .177
BA S (Brake Assi stSystem) .................. 16 8
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 171
ESP ®
(Electronic Stability Prog ram)
Crosswind Assist ................................. 171
ESP ®
(Electronic Stability Prog ram)
trailer stabilisation .............................. .171
Overview ..............................................1 67
Ra dar sensors ...................................... 16 6
Re sponsibility ...................................... 16 6
ST EER CONTROL ................................. 172
Driving saf ety sy stem
see ESP ®
(Elect ronic Stability Prog ram)
Driving sy stem
AIR BODY CONTROL ............................ 191
DY NA MIC BODY CONTROL .................. 191
Driving sy stem
see 360° Camera
see Active Blind Spot Assi st
see Active Lane Keeping Assist see
ATTENTION ASSIST
see Blind Spot Assist
see Cruise control
see Dis tance Pilot DISTRONIC
see Driving sa fety sy stem
see HOLD function
see Limiter
see Parking Assist PARKTRONIC
see Parking Pilot
see Reversing camera
see Speed Limit Pilot
see Steering Pilot
see Traf fic Sign Assi st
Driving tips Driving abroad (changing the lights) ..... 11 4
Gene ral driving tips ............................ .144
Ru nning-in no tes ..................................1 44
Dr ow siness de tection
see ATTENTION ASSIST
Dr ow siness warning
see ATTENTION ASSIST
DY NA MIC BODY CONT ROL
Suspension .......................................... 191Dynamic handling cont
rol sy stem
see ESP ®
(Elect ronic Stability Prog ram)
DY NA MIC SELECT ................................... .148
Configu ring drive program I ................. 14 9
Displ aying engine data ........................ 14 9
Displ aying vehicle data ........................ 14 9
Drive prog ram display ......................... .148
Drive programs ................................... .148
Fu nction .............................................. 14 8
Operating (DYNAMIC SELECT switch) .............................................................1 48
Selecting the drive prog ram ............... .148 E
E10 ............................................................ 409
Easy entry feature
Operation/no tes ................................. 100
Setting ................................................. 101
Easy exitfeature
Operation/no tes ................................. 100
Setting ................................................. 101
EBD (Electronic Brake forc e Distribu‐
tion)
Function/no tes .................................... 171 Index
491