MERCEDES-BENZ S-CLASS SALOON LONG 2020 Owners Manual

Brakes
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! Elect ric pa rking brake indi‐
cator lamp (red)
!
The elect ric pa rking brake
(yellow) indicator lamp *T
he red elect ric pa rking brake indicator lamp flashes or is lit.
The yellow elect ric pa rking brake indicator lamp also lights up in theev ent of a malfunction. #
Notethe messages on the driver's displa y.
J
Brake sy stem warning lamp
(yellow) *T
he 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. The hill
start assist may be malfunctioning. #
Adjust your speed and drive on carefull y,leaving a suitable dis tance totheve hicle in front. 558
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Ifth e driver's display sho wsa display message, obse rve it. #
Consult a qualified specialist workshop.
J Brake sy stem warning lamp
(red) *T
he 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.
R The reis insuf ficient brake fluid in the brake fluid reser voir. #
Notethe messages on the driver's displa y. &
WARNING Risk of accident and inju ryif brake forc e boosting is malfunctioning
If brake forc e boosting is malfunctioning, increased brake pedal forc e may be necessary for braking. The braking
ch aracteristics may be impaired. The braking dis tance can increase in emergency braking situations. #
Stop in a safe location immediately. Do not continue driving! #
Consult a qualified specialist workshop. &
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid le vel is too lo w,the braking ef fect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and traf fic conditions. Do not continue driv‐
ing. Display messages and
warning/indicator lamps 559

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Consult a qualified specialist workshop. #
Do not top up the brake fluid. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
L Wa rning lamp for dis tance
wa rning function *T
he 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.
Fu nction of Active Brake Assi st (/ page 243).
ä Suspension warning lamp
(yellow) *T
heyellow AIRMATIC warning lamp is lit.
A fault has occur red in AIRMATIC. #
Notethe messages on the driver displa y.560
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
ä Suspension warning lamp
(red) *T
hered AIRMATIC warning lamp is lit.
A fault has occur red in AIRMATIC.
* NO
TEThe vehicle's driving characteristics will ha vechanged significantl y. #
Consult a qualified specialist workshop. #
Notethe messages on the driver displa y. #
Consult a qualified specialist workshop.
Ä Ac tive Brake Assi stwa rning
lamp *T
he Active Brake Assi styellow warning lamp is lit.
The sy stem is restricted or una vailable. #
Notethe messages on the driver displa y. Displ
aymessa ges and warning/indicator lamps 561

Driving saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! ABS warning lamp *T
he 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 sy stems and driving saf ety sy stems may also be malfunctioning. #
Notethe messages on the driver's displa y. &
WARNING Thereis a risk of skidding if EBD or ABS is malfunctioning
The wheels may lock during braking.
The steerability and braking characteristics are heavily impaired and the braking dis tance may increase. In addi‐
tion, 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. ÷
ESP ®
wa rning lamp flashes *
The yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
One or more wheels has reached its grip limit (/ page 222). #
Adapt your driving style to suit thero ad and weather conditions. 562
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
÷ ESP ®
wa rning lamp lights
up *
The yellow ESP ®
wa rning lamp is lit while the engine is running.
ESP ®
is malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. #
Comp ly wi th th e messages on the driver's displa y. &
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. å
ESP ®
OFF warning lamp *
The yellow ESP ®
OFF warning lamp is lit while the engine is running.
ESP ®
is deacti vated.
Other driving sy stems and driving saf ety sy stems may also be inoperative. &
WARNING Risk of skidding when driving wi thESP ®
deacti vated
ESP ®
does not act tostabilise theve hicle. The availability of fur ther driving saf ety sy stems is also limited. #
Drive on carefull y. #
Deactivate ESP ®
only for as long as the situation requ ires. Display messages and
warning/indicator lamps 563

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
If ESP ®
cann otbe activated, ESP ®
is malfunctioning. #
Have ESP ®
ch ecked immediately at a qualified specialist workshop. #
Obser vethe no tes on deactivating ESP ®
(/ page 222). Mercedes me connect
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
H Mercedes me connect
wa rning lamp *At least one of
the main functions of the Mercedes me connect sy stem or of the SOS emer gency call sy stem is mal‐
functioning. #
Consult a qualified specialist workshop. 564
Display messages and warning/indicator lamps

Ty
re pressure moni tor Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp
fl ashes *The
yellow tyre pressure monitor warning lamp (pressure loss/malfunction) flashes for appro ximately one minu te
and then remains lit.
The tyre pressu remonitor is malfunctioning. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
The tyre pressure monitoring sy stem cann otissue a warning if there is pressure loss in one or more of the tyres.
Ty res with insuf ficient tyre pressure may impair the driving characteristics as well as steering and braking. #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. h
Ty re pressure monitoring
sy stem warning lamp lights
up *T
he 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
R The tyres can bu rst.
R The tyres can wearexc essively and/or une venly.
R The driving characteristics as well as thesteering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. Display messages and
warning/indicator lamps 565

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Adjust the tyre pressure if necessar y. #
Stop theve hicle in accordance with the tra ffic conditions. #
Check the tyre pressure and the tyres. 566
Display messages and warning/indicator lamps

1,
2, 3 ...
3D driver display Function/no tes..................................... 291
3D in stru ment clus ter
see 3D driver display
4MATIC Function................................................ 205
12 V battery
see Battery (vehicle)
48 V on-board electrical sy stem
see EQ Boo sttech nology
230 V so cket
see Soc ket (230 V)
360° Camera Activating using GPS (r eversing cam‐
era)........................................................ 267
But ton.................................................. .266
Care ...................................................... 356
Fu nction................................................ 262
Opening the camera co ver (r eve rsing
camera)................................................. 267
Selecting a view................................... .267
Setting (r eversing camera).................... 267 Switching automatic operation
on/off (r eversing camera).................... .267 A
A/C function Activating/deactivating (MBUX mul‐
timedia sy stem).....................................1 74
ABS (Anti-lock Braking Sy stem) .............. .221
Ac celeration
see Kickdown
Ac cident and Breakdown Manage‐
ment
Mercedes me connect........................... 325
Ac oustic locking verification signal
Ac tivating/deactivating........................... 78
Ac tivating a commuter route................... 318
Ac tive Blind Spot Assi st
Ac tivating/deactivating......................... 255
Brake application.................................. 254
Fu nction................................................ 251
Sy stem limitations................................. 251
Tr ailer operation.................................... 254 Ac
tive bonn et(pedestrian pr otection)
Operation............................................. .348
Ac tive Brake Assi st
Fu nction/no tes..................................... 24 3
Setting................................................... 247
Ac tive Di stance Assist DISTRO NIC
Ac tive Emergency Stop Assis t............... 239
Ac tive Lane Change Assi st.................... 24 0
Calling up a spee d................................. 232
Fu nction................................................ 229
Increasing/decreasing speed................ 232
Re quirements:...................................... .232
Ro ute-based speed adap tatio n.............. 235
Selecting............................................... 232
St eering wheel buttons......................... 232
St oring a speed.....................................2 32
Switching off/deactivating.................... 232
Switching on/activating........................ 232
Sy stem limitations................................. 229
Ac tive Eme rgency Stop Assist ................ .239
Ac tive headlamps...................................... 15 5
Ac tive Lane Change Assi st
Ac tivating/deactivating......................... 24 3
Fu nction................................................ 24 0 Index
567