2018 MERCEDES-BENZ S-CLASS SEDAN engine

Safety sy stems
Wa rning/indicator lamp
Possible causes/consequences and MSolutions
$
Brakewarning lamp (USA)
J
Brakes warning lamp (Can‐
ada) The
red brake sy stem warning lamp is lit while the engine is running.
Po ssible causes are:
RThe brake forc e boosting is malfunctioning and the braking characteristics may be af fected.
RThere is not enough brake fluid inthe brake fluid reser voir.
&
WARNING Thereis arisk of an accident if brake forc e boosting is malfunctioning
If brake forc e boosting is malfunctioning, the wheels may lock when braking. Braking characteristics may be
impaired. The braking dis tance in an eme rgency braking situation can increase.
#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.
&
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid leve l is too lo w,the braking ef fect and the braking characteristics may be impaired.
#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.
Do not add brake fluid.
Display messages and warning/indicator lamps 503

Warning/indicator lamp
Possible causes/consequences and MSolutions
!
ABSwarning 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 driving and driving safe ty systems may also be faulty.
&
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 .Th ebr aking dis tance in an emer‐
ge ncy braking situation can increase. In addition, other driving saf etysy 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 in the multifunction displa y.
#Visit a qualified specialist workshop.
÷
ESP®wa rning lamp flashes The
yellow ESP
®wa rning lamp flashes while theve hicle is in motion.
ESP
®is inter vening .
#Ad apt your drivin gst yle to suit thero ad and weather conditions.
Display messages and warning/indicator lamps 505

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.
506
Display messages and warning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and MSolutions
å
ESP®OFFwarning 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 stabilization. The availability of fur ther driving saf etysy 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.
#Ha ve ESP®checked immediately at a qualified specialist workshop.
#Obser vethe no tes on deactivating ESP®.
Display messages and warning/indicator lamps 507

Warning/indicator lamp
Possible causes/consequences and MSolutions
6
Restra 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 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 am‐
ple.
#Ha ve 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.
#Visit a qualified specialist workshop immediatel y.
Displaymessage s andwarning/indicator lamps 509

Seat belts
Warning/indicator lamp
Possible causes/consequences and MSolutions
7
Seat beltwarning lamp
lights up Af
terst arting the engine, there d seat belt warning lamp lights up for 6 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, thewa rning lamp may remain lit.
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.#Fa sten your seat belt.
There are objects on the front passenger seat.
#Re mo vethe objects from the front passenger seat.
51 0
Displ aymessage s andwarning/indicator lamps

Vehicle
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.
512
Displ aymessage s andwarning/indicator lamps

Engine
Warning/indicator lamp
Possible causes/consequences and MSolutions
;
Engine diagnosiswarning
lamp The
yellow engine diagnosis 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 values may be exceeded and the engine may be running in emergency operation mode.
In some states, legal requ irements stipulate that you must immediately consult a qualified specialist workshop as soon
as theye llow engine diagnosis 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 cal malfunction warning lamp is lit.
There is a malfunction in the 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 was already proper lyclosed: consult a qualified specialist workshop.
Display messages and warning/indicator lamps 51
3