2018 MERCEDES-BENZ S-CLASS COUPE warning lights

Displaymessages
Possible causes/consequences and MSolutions
6
SRS Malfunction Service
Required*T
herestra int sy stem is defective .
&
WARNING Risk of injury orfata 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 Emer gency Tensioning Device or
airbag, forex ample.
#Ha ve there stra int sy stem checked and repaired immediately at a qualified specialist workshop.
De tection of a restra int sy stem malfunction:
RThe 6 restra int sy stem warning lamp does not light up when the ignition is switched on.
RThe 6 restra int sy stem warning lamp lights up continuously or repeatedly during a journe y.
#Visit a qualified specialist workshop immediatel y.
416
Displ aymessage s andwarning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
A
Malfunction Service
Required*T
heroll bars are defective.
#Visit a qualified specialist workshop immediatel y.
K
Open/Close Convertible
Top Completely *T
he soft top is not loc ked. If youdr ive at speeds of more than 37 mph (60 km/h) you cannot open or close the soft
to p.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
#Push or pull and hold the soft- top switch until the soft top is fully open or closed.
Lights
Display messages
Possible causes/consequences and MSolutions
b
Example:Check Left Low
Beam *T
he cor responding light source is defective.
#Visit 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.
444
Displaymessage s andwarning/indicator lamps

Displaymessages
Possible causes/consequences and MSolutions
b
Active Headlamps Inopera-
tive*T
he active headlamp s are defective.
#Visit a qualified specialist workshop.
b
Malfunction See Opera-
tor’s Manual *T
heexterior lighting is defective.
#Vi sit a qualified specialist workshop.
b
Auto Lamp Function Inoper-
ative *T
he light sensor is defective.
#Visit a qualified specialist workshop.
b
Switch Off Lights *Y
ou are leaving theve hicle and the lights are still switched on.
#Tu rn the light switch totheà position.
Display messages and warning/indicator lamps 44
5

Instrument Display intheWi descreen Co ck‐
pit
Prog ressive setting (Widescreen Cockpit)
Ifyo 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 Low beam (
→page
109)
T Pa
rking lights (
→page 109)
K High beam
(
→page11 0)
#! Tu
rn signal light (
→page 110)
R Re
ar fog light (
→page 109)
ü Seat belt is not
fastened
(
→page 456)
$ USA: brakes (red) (
→page
449)
J Canada
: brakes (red) (
→page 449)
! ABS malfunction (
→page
449)
÷ ESP
®(→page449)
å ESP
®OFF (→page 449)
F US
A: electric pa rking brake applied
(red) (
→page 449) !
Canada: electric parking brake
applied (red) (
→page
449)
! Electric pa
rking brake (yellow)
(
→page 449)
Ð St
eering assis tance malfunction
(
→pa ge 457)
# Electrical
fault (
→page 458)
6 Re
stra int sy stem (
→page 449)
; Che
ckEngine (
→page 458)
8 Fu
elreser vewith fuel filler cap loca‐
tion indicator (
→page 458)
(→page 458)
? Coolant
too hot/cold (
→page 458)
· Dis
tance warning (
→page 456)
h Ti
re pressure monitoring sy stem
(
→page 462)
44 8
Displ aymessage s andwarning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and MSolutions
÷
ESP®warning lamp lights
up The
yellow ESP
®wa rning lamp is lit while the engine is running.
ESP
®is malfunctioning.
Other driving and driving safe ty systems may also be malfunctioning.
&
WARNING Risk of skidding if ESP®is malfunctioning
If ESP
®is malfunctioning, ESP®cannot car ryout vehicle stabilization. In addition, other driving saf etysy stems are
switched off.
#Drive on carefull y.
#Have ESP®checked at a qualified specialist workshop.
#Drive on carefully.
#Obser vethe messages in the multifunction displa y.
#Consult aqualified specialist workshop.
452
Display messages and warning/indicator lamps

Seat belts
Warning/indicator lamp
Possible causes/consequences and MSolutions
7
Seat beltwarning lamp
lights up Af
terth e engine is star ted, there d seat belt warning lamp lights up for six seconds.
In addition, an acou stic wa rning tone may sound.
The seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts.#Fa sten your seat belt.
If yo u ha veplaced objects on the front passenger seat, the seat belt warning lamp may remain lit.
7
Seat belt warning lamp
fl ashes The
red seat belt warning lamp flashes and an intermitte ntwa rning tone sounds.
The driver or front passenger has not fastened their seat belt while theve hicle is in motion.#Fa sten your seat belt.
There are objects on the front passenger seat.
#Re mo vethe objects from the front passenger seat.
Driving sy stems
Wa rning/indicator lamp
Possible causes/consequences and MSolutions
à
Suspensionwarning lamp The
yellow AIR BODY CONTROL warning lamp is on.
AIR BODY CONTROL is faulty.#Obser vethe messages on the multifunction displa y.
456
Display messages and warning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and MSolutions
·
Distance 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.
#Increasethe dis tance.
Ac tive Brake Assi st.
Ve hicle
Wa rning/indicator lamp
Possible causes/consequences and MSolutions
Ð
Powe 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 werst eering assis tance 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 etyis jeopardized.
#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 in the multifunction displa y.
Displaymessage s andwarning/indicator lamps 457

Engine
Warning/indicator lamp
Possible causes/consequences and MSolutions
;
Engine diagnosiswarning
lamp The
yellow Check Engine warning lamp is lit while the engine is running.
A malfunction has occurr ed inthe engine, theex haust sy stem or the fuel sy stem.
The emissions limit value may ha vebeen exceeded and the engine may be running in eme rgency operation mode.
In some states, legal requ irements stipulate that you must immediately consult a qualified specialist workshop as soon
as theye llow Check Engine warning lamp lights up.
#Ha ve theve hicle checked as soon as possible at a qualified specialist workshop.
#
Electrical malfunction warn‐
ing lamp The
red electri calfault warning lamp is lit.
There is a fault inthe electrics.#Obser vethe messages in the multifunction displa y.
8
Fuelreser vewarning lamp The
yellow fuel reser ve wa rning lamp lights up while driving.
There has been pressure loss in the fuel sy stem. The fuel filler cap is not closed cor rectly or the fuel sy stem is leaking.#Close the fuel filler cap.
If th e fuel filler cap has already been closed cor rectly:
#Visit a qualified specialist workshop.
458
Display messages and warning/indicator lamps