Page 402 of 453

Display messages
Possible causes/consequences and M
MSolutions
Active Brake Assist Func-
tions limited See Owner's
Manual *F
orvehicles with the Driving Assis tance Package, thefo llowing functions may be temp orarily una vailable or limited:
R Active Brake Assi stwith cross-traf fic function
R Evasi veSteering Assist
R PRE‑SAFE ®
PLUS
Ve hicles without the Driving Assistance Package: Active Brake Assi stistemp orarily una vailable or only partially
av ailable. #
Consult a qualified specialist workshop.
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R Dirt on the sensors
R Heavy rain or snow
R Extended country driving wi thout other traf fic, e.g. in the desert
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, the driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: #
Stop theve hicle in accordance with the tra ffic conditions. #
Clean all sensors (/ page 307). #
Restart the drive sy stem. Display messages and
warning/indicator lamps 399
Page 407 of 453

Display messages
Possible causes/consequences and M
MSolutions
Reduce speed *A
t least one tyre is overheating. The af fected tyres are displ ayed in red. At temp eratures close tothe limit value,
th e tyres are displa yed in yello w. &
WARNING Risk of an accident from driving wi thove rheated tyres
Overheated tyres can bur st. #
Reduce speed so that the tyres cool down. Wa
rning and indicator lamps Overview of indicator and
warning lamps Some sy
stems will per form a self-test when the
ignition is switched on. Some indicator and
wa rning lamps may briefly light up or flash. This
behaviour is non-critical. These indicator and
wa rning lamps indicate a malfunction only if they
light up or flash af terth e drive sy stem has been
st ar ted or during a journe y. Instrument display
Depending on
the display setting, the positions
of the indicator lamps on the instrument display
may dif fer from theex ample shown. Indicator and
warning lamps:
6 Re
stra int sy stem (/ page 406)
ü Seat belt (/
page 406)
_ Reduced po wer (/ page 407)
Ú Sy
stem er ror (/ page 407)
# Electrical
fault (/ page 407)
ï Trailer hit ch (/page 408)
Ù Powe rst eering (/ page 408)
! Elect
ric pa rking brake (red)
(/ page 410)
! Electric parking brake (yell
ow)
( / page 410) 404
Displaymessa ges and warning/indicator lamps
Page 408 of 453
J
Brakes (yell
ow) (/ page 410)
J Brakes (red) (/
page 410)
L Distance warning (/ page412)
! ABS (/
page413)
÷ ESP®
(/ page 413)
å ESP®
OFF (/ page 413)
h Ty
re pressure monitoring sy stem
(/ page 415)
T St
anding lights (/ page123)
L Low beam (
/page 123)
K High beam (/
page124)
#! Tu
rn signal lights (/ page124)
R Re
ar fog light (/ page123) Displ
aymessa ges and warning/indicator lamps 405
Page 413 of 453
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 multifunction displa y.
J
Brake sy stem warning lamp
(yellow) *T
he yellow brake sy stem warning lamp is lit while the drive sy stem 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 drive on carefull y,leaving a suitable dis tance totheve hicle in front. #
Ifth e multifunction display sho wsa display message, obse rve it. 41 0
Displaymessa ges and warning/indicator lamps
Page 414 of 453

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
Consult a qualified specialist workshop.
J Brake sy stem warning lamp
(red) *T
he red brake sy stem warning lamp is lit while the drive sy stem 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 multifunction 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. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 411
Page 415 of 453
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
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 209). 412
Displaymessa ges and warning/indicator lamps
Page 416 of 453

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 drive sy stem is running.
ABS is malfunctioning.
If an additional warning tone sounds, EBD is malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be malfunctioning. #
Notethe messages on the multifunction 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 ha vereached their grip limit (/ page190). #
Adapt your driving style to suit thero ad and weather conditions. Display messages and
warning/indicator lamps 413
Page 420 of 453

1,
2, 3 ...
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V)
230 V so cket
see Soc ket (230 V)
360° Camera Care...................................................... 307
Fu nction................................................ 226
Opening the camera co ver (r eve rsing
camera)................................................. 229
Selecting a view................................... .229
Switching auto matic operation
on/off (r eversing camera).................... .229 A
A/C function Activating/deactivating (MBUX mul‐
timedia sy stem).....................................1 40
ABS (Anti-lo ckBraking Sy stem) .............. .189
Ac celerator pedal
see Haptic accelerator pedal Ac
cident and Breakdown Manage‐
ment
Mercedes me connect........................... 278
Ac oustic locking verification signal
Ac tivating/deactivating........................... 71
Ac oustic presence indica tor (sound
ge nerator)
No tes..................................................... 147
Ac tive Blind Spot Assi st
Brake application................................... 219
Fu nction................................................. 218
Sy stem limitations................................. 218
Tr ailer operation.................................... .219
Ac tive Brake Assi st
Fu nction/no tes..................................... 209
Setting................................................... 213
Ac tive Di stance Assist DISTRO NIC
Ac tive Emergency Stop Assis t............... 208
Calling up a speed................................. 202
Fu nction................................................ 19 9
Increasing/decreasing speed................ 202
Ro ute-based speed adap tatio n.............. 204
Selecting............................................... 202
St oring a speed.....................................2 02Switching off/deactivating.................... 202
Switching on/activating........................ 202
Sy stem limitations................................. 19 9
Ac tive Eme rgency Stop Assist ................ .208
Ac tive headlamps...................................... 12 6
Ac tive Lane Keeping Assist
Ac tivating/deactivating......................... 223
Ac tivating/deactivating thewa rning.....2 23
Fu nction................................................ 220
Setting the sensitivity............................2 23
Sy stem limits.........................................2 20
Tr ailer operation.................................... 220
Ac tive Parking Assist
Exiting a parking space......................... 236
Fu nction................................................ 233
Pa rking................................................. .235
Sy stem limitations................................. 233
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st
Displ ay.................................................. 204
Fu nction................................................ 204 Index
417