2018 MERCEDES-BENZ E-CLASS CABRIOLET engine

Display messages
Possible causes/consequences and M
MSolutions &
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the
ve hicle interior if the boot lid is open when the engine is running, especially if theve hicle is in motion. #
Alw ays switch off the engine before opening the boot lid. #
Never drive with the boot lid open. #
Close the boot lid.
¥ Top up washer fluid *T
hewasher fluid le vel in thewa sher fluid reser voir has dropped below the minimum. #
Top up thewa sher fluid (→ page 398).
ï Check trailer hitch lock
(white displ aymessa ge) *T
he trailer tow hit chwill not be operational when you drive with a trailer. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedure (→ page246). #
When the display message disappears, couple up the trailer and drive on. &
WARNING Risk of an accident if the ball neck is not loc ked
If th e ball neck is not in the loc ked position, the trailer may come loose. 518
Displaymessa ges and warning/indicator lamps

Climate control
Displ
aymessages
Possible causes/consequences and M
MSolutions
Air conditioning Malfunc-
tion See Owner's Manual *O
peration of the climate control sy stem is temp orarily restricted. Air flow and fresh air supply are set toautomatic
mode. #
Have the climate control sy stem checked at a qualified specialist workshop.
Let fresh air into the vehi-
cle interior! Air condition-
ing malf. Visit workshop *T
he climate contro l system is malfunctioning. &
WARNING Risk of inju ryand accident due toan insuf ficient supply of fresh air
If th e climate control sy stem is malfunctioning, carbon dioxide le vels may inc rease in the passenger compart‐
ment. Breathing in carbon dioxide may cause dizziness. #
Open the window toensure that there is a suf ficient supply of fresh ai r. #
Open the window toensure that there is an adequate supply of fresh air. #
Consult a qualified specialist workshop immediatel y.
&
inoperative See Owner's
Man. *T
hestationary heater is temp orarily malfunctioning. #
When theve hicle is on a le vel sur face and the engine has cooled down, make up tofour attem ptsto switch on
th est ationary heater, waiting se veral minutes between each attem pt. #
Ifth est ationary heater does not swit chon, consult a qualified specialist workshop. 520
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
& inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle.
&
inoperative Battery low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched itself off. #
Drive for an extended pe riod until the battery has reached a suf ficient charge leve l again. Soft
top Display messages
Possible causes/consequences and M
MSolutions
K 12 V battery See Owner's
Manual *T
he on-board electrical sy stem voltage is too lo w. #
Start the engine.
K *T
he soft top is not loc ked. If you drive at speeds of more than 60 km/h you cannot open or close the soft top. #
Do not drive at speeds greater than 60 km/h. #
Fully open or close the soft top. Display messages and
warning/indicator lamps 521

Wa
rning and indicator lamps Overview of
warning and indicator lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some warning and indi‐
cator lamps may brief lylight up or flash. This
behaviour is non-critical. These warning and indi‐
cator lamps indicate a malfunction only if they
light up or flash af terth e engine has been star‐
te d or during a journe y.
Instrument display (standard) Instrument display in
the widescreen cockpit Prog
ressive setting Ve
hicles with a widescreen cock pit:Ifyou
select the progressive display setting, the posi‐ tions of
the indicator lamps on the instrument
display will change.
Wa rning and indicator lamps:
L Low beam (→
page127)
T St
anding lights (→ page127)
K High beam (→
page129)
#! Tu
rn signal indicators (→ page129)
R Re
ar fog light (→ page127)
6 Re
stra int sy stem (→ page 527)
ü Seat belt not
fastened (→ page 532)
J Brakes (yellow) (→
page 527)
J Brakes (red) (→
page 527)
! Elect
ric pa rking brake (yellow)
(→ page 527)
! Electric parking brake (red)
(→
page 527)
! ABS malfunction (→
page 527)
÷ ESP®
(→ page 527)
å ESP®
OFF (→ page 527)
L Distance warning (→ page 533) 526
Display messages and warning/indicator lamps

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
÷ ESP ®
wa rning lamp flashes The
yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
At least one wheel and tyre assemb lyhas reached its traction limit (→ page188). #
Adapt your driving style to suit thero ad and weather conditions.
å ESP ®
OFF warning lamp The
yellow ESP ®
OFF warning lamp is lit while the engine is running.
ESP ®
is deacti vated. &
WARNING Risk of skidding when driving wi thESP ®
deacti vated
If ESP ®
is deactivated, ESP ®
cannot car ryout vehicle stabilisation. The availability of fur ther driving saf ety sy stems
is also limited. #
Drive on carefull y. #
Only deactivate ESP ®
for as long as the situation requ ires.
If ESP ®
cannot be activated, ESP ®
is malfunctioning. #
Have ESP ®
ch ecked immediately at a qualified specialist workshop. #
Obser vethe no tes on deactivating ESP ®
(→ page 188).
J The
red brake sy stem warning lamp is lit while the engine is running.
Po ssible causes:
R The brake forc e boosting is malfunctioning and the braking characteristics may be af fected. 528
Display messages and warning/indicator lamps

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 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 on the multifunction displa y. #
Consult a qualified specialist workshop.
J Brake sy stem warning lamp
(yellow) The
yellow brake sy stem warning lamp is lit while the engine is running. &
WARNING Risk of an accident due toa brake sy stem malfunction
If th e brake sy stem is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. #
Adjust your speed and continue todrive carefull y,leaving a suitable dis tance totheve hicle in front. #
Ifth e multifunction display sho wsa display message, please obse rve it. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 531