Page 577 of 629
Seat belt
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
lights up The
red seat belt warning lamp will light up once the drive sy stem has star ted.
In addition, a warning tone may sound.
*T he seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt (/ page 35).
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 intermit tent wa rning tone sounds.
*T he driver or front passenger has not fastened their seat belt while theve hicle is in motion. #
Fasten your seat belt(/ page 35).
*T here are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. 574
Displaymessa ges and warning/indicator lamps
Page 578 of 629
Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
ä Suspension warning lamp The
yellow rear axle le vel control warning lamp is on.
*T here is a fault with there ar axle le vel control. #
Obser vethe messages on the multifunction displa y.
L
Wa rning lamp for dis tance
wa rning function The
red dis tancewarning lamp lights up while theve hicle is in motion.
*T he 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 202). Display messages and
warning/indicator lamps 575
Page 579 of 629

Ty
res Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp lights
up The
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
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tyre pressure and the tyres. 576
Displaymessa ges and warning/indicator lamps
Page 580 of 629
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 monitoring sy stem warning lamp (pressure loss/malfunction) flashes for appro ximately one
minute and then remains lit.
*The tyre pressu remonitoring sy stem is faulty. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
If th e tyre pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure loss
in one or more of the tyres.
Ty res with insuf ficient tyre pressure ma y,forex ample, af fect theve hicle's handling characteristics, steering and
braking. ‑ #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 577
Page 581 of 629

Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
ï Tr ailer tow hit chwarning
lamp The
red trailer tow hit chwarning lamp is on.
*The trailer tow hit chis not operational or is swivelling. &
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. #
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. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. #
Notethe messages on the multifunction displa y.
If th e trailer hitch is swivelling: #
Wait until the ball coupling has reached the operational position.
Ù
Wa rning lamp for electric
po we rst eering The
red elect ric po werst eering warning lamp is lit while the drive sy stem is running.
*The po wer-assis tedsteering 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 ety is jeopardised. 578
Displaymessa ges and warning/indicator lamps
Page 582 of 629
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
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. #
Notethe messages on the multifunction displa y.Drive sy
stem Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
O Re duced po werwa rning
lamp The
yellow reduced po werwa rning lamp is on.
*D rive system po wer output is reduced. #
Notethe messages on the multifunction displa y.
Ú
Sy stem er rorwa rning lamp The
red sy stem er rorwa rning lamp is on.
*T here is a malfunction in the drive sy stem. #
Notethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 57 9
Page 583 of 629
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
# Elect rical fault warning
lamp The
red elect rical fault warning lamp is lit.
*T here is a fault with the electrics. #
Notethe messages on the multifunction displa y.580
Display messages and warning/indicator lamps
Page 584 of 629

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 ........................................... 235
Ca re .................................................... 469
Fu nction .............................................. 235
Opening the camera co ver (r eve rsing
camera) .............................................. .238
Selecting a view .................................. 238
Setting favo urites ................................ 238
Swit ching automatic operation
on/off (r eversing camera) .................. .238 A
A/C function Activating/deactivating (multimedia
sy stem) ................................................ 151
ABS (Anti-lock Braking Sy stem) ............ .198 Ac
celerator pedal
see Haptic accelerator pedal
Ac cess data
Setting (Blue tooth®
) ............................ 428
Ac cident and breakdown manage‐
ment
Mercedes me connect ........................ .418
Ac oustic locking verification signal
Ac tivating/deactivating ......................... 73
Ac oustic presence indica tor (sound
ge nerator)
No tes ................................................... 15 8
Ac tivating/deactivating automatic
vo lume adjustment
Ad vanced sound sy stem ......................4 58
Burmes ter®
sur round sound sy stem ... 457
Ac tive Blind Spot Assi st......................... 250
Ac tivating/deactivating ...................... .253
Brake application ................................. 252
Fu nction .............................................. 250
Sy stem limitations ...............................2 50
Tr ailer operation .................................. 252 Ac
tive Brake Assi st
Fu nction/no tes ................................... 202
Setting .................................................2 08
Ac tive Di stance Assist DISTRO NIC......... 212
Ac tive Emergency Stop Assist .............2 22
Ac tive Lane Change Assi st................... 221
Calling up a speed ............................... 214
Displ ays in the instrument display .......2 23
Fu nction ............................................... 212
Increasing/decreasing speed .............. 214
Re quirements: .................................... .214
Ro ute-based speed adap tation ........... .217
Selecting .............................................. 214
St eering wheel buttons ........................ 214
St oring a speed .................................... 214
Switching off/deacti vating .................. 214
Switching on/activating ....................... 214
Sy stem limitations ...............................2 12
Ac tive Eme rgency Stop Assist ...............222
Ac tive headlamps .................................... 137
Ac tive Lane Change Assi st..................... 221
Ac tivating/deactivating ...................... .222
Fu nction .............................................. 221 Index
581