Page 477 of 549
Ty
res Display messages
Possible causes/consequences and M
MSolutions
h Warning tyre defect *T
he tyre pressure in one or more tyres has dropped suddenly. The wheel position is displa yed. &
WARNING Risk of an accident from driving wi thaflat tyre
Flat tyres are dangerous in thefo llowing ways:
R The tyres can overheat and cause a fire.
R ‑ The driving characteristics, steering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Do not drive with a flat tyre. #
Obse rveth e no tes on flat tyres. No
tes on flat tyres (/ page 393). #
Stop theve hicle, paying attention toroad and traf fic conditions. #
Check the tyres.
h Check tyre(s) *T
he tyre pressure in one or more tyres has dropped significantl y.The wheel position is displa yed. 474
Displaymessa ges and warning/indicator lamps
Page 478 of 549

Display messages
Possible causes/consequences and M
MSolutions &
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 (/ page 409) andthe tyres.
h
Rectify tyre pressure *T
he tyre pressure is too low in at least one of the tyres, or the tyre pressure dif fere nce between the wheels is too
great. #
Check the tyre pressure and add air, if necessar y. #
When the tyre pressure is cor rect, restart the tyre pressure monitoring sy stem (/ page412). Displ
aymessa ges and warning/indicator lamps 475
Page 479 of 549

Display messages
Possible causes/consequences and M
MSolutions
h Tyre press. monitor cur-
rently unavailable *T
here is inter fere nce from a po werful radio signal source. As a result, no signals from the tyre pressure sensors are
re cei ved. The tyre pressure monitoring sy stem is temp orarily una vailable. #
Drive on.
The tyre pressure monitoring sy stem restarts automatically as soon as the cause has been rectified.
h
Wheel sensor(s) missing *T
he tyre pressure sensor signal is missing from one or more tyre(s). The pressure of the af fected tyre is not dis‐
pl ay ed. #
Have thefa ulty tyre pressure sensor replaced at a qualified specialist workshop.
h Tyre press. monitor inoper-
ative No wheel sensors *T
he wheels fitted do not ha vesuitable tyre pressure sensors. The tyre pressure monitoring sy stem is deactivated. #
Fit wheels with suitable tyre pressure sensors.
h
Tyre press. monitor inoper-
ative *T
he tyre pressure monitoring 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. 476
Displaymessa ges and warning/indicator lamps
Page 483 of 549

Display messages
Possible causes/consequences and M
MSolutions &
WARNING Risk of accident in theeve nt of a fault with the driving and driving saf ety sy stems
If th e dif fere ntial lo cks are malfunctioning, the ABS, ESP ®
, ETS/4ETS and BAS driving and driving sa fety sys‐
te ms may also malfunction.
The wheels may lock when braking. The braking dis tance may increase in an emergency braking situation. #
Drive on carefully. #
Consult a qualified specialist workshop immediatel y. #
Drive on carefully. #
Consult a qualified specialist workshop immediatel y.
Differential lock active ABS
and ESP not available *
ABS and ESP ®
are not available when the dif fere ntial lo cks are switched on.
Other driving and driving saf ety sy stems may also be una vailable.
The brake sy stem continues tooperate normally. The braking dis tance may increase in an emergency braking situa‐
tion. &
WARNING Risk of skidding if ABS and ESP ®
are una vailable
If ABS and ESP ®
are una vailable, the wheels could lock when braking and ESP ®
cann otper form vehicle stabili‐
sation.
The steering capability and braking characteristics are thus se verely impaired. The br aking distance may
increase in an eme rgency braking situation. In addition, other driving saf ety sy stems are switched off. 480
Display messages and warning/indicator lamps
Page 484 of 549

Display messages
Possible causes/consequences and M
MSolutions #
Drive on carefull y. #
Switch on the dif fere ntial lo cks only for off-road driving. #
Switch off the dif fere ntial lo cks immediately af ter off-road driving. #
Drive on careful ly. #
Switch on the dif fere ntial lo cks only for off-road driving. #
Switch off the dif fere ntial lo cks immediately af ter off-road driving.
Desert drive progr. active
ESP unavailable See Own-
er's Manual *
ABS and ESP ®
are restricted in the Desert drive program.
Other driving and driving saf ety sy stems may also be una vailable.
The brake sy stem continues tooperate normally. The braking dis tance may increase in an emergency braking situa‐
tion. &
WARNING Risk of skidding if ABS and ESP ®
are restricted
If ABS and ESP ®
are restricted, the wheels could lock when braking and ESP ®
cann otper form vehicle stabilisa‐
tion.
The steering capability and braking characteristics are thus se verely impaired. The br aking distance may
increase in an emergency braking situation. In addition, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Activate the Desert drive prog ram only when driving on sand. Display messa
ges and warning/indicator lamps 481
Page 496 of 549
?
Coolant
too hot/cold (/ page 500)
h Ty
re pressure monitor (/ page 502)ï
Tr
ailer hit chnot operational
(/ page 504) Saf
ety sy stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! Re d indicator lamp, elect ric
parking brake applied
!
Ye llow elect ric pa rking
brake indicator lamp is mal‐
functioning The
red elect ric pa rking brake indicator lamp flashes or is lit. The yellow indicator lamp is also lit if the electric parking
brake malfunctions. #
Obser vethe messages on the multifunction displa y.
÷
ESP ®
wa rning lamp flashes The
yellow ESP ®
wa rning lamp flashes while theve hicle is in motion.
At least one wheel and tyre assemb lyhas reached its traction limit (/ page179). #
Adapt your driving style to suit thero ad and weather conditions. Display messages and
warning/indicator lamps 493
Page 499 of 549

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
! ABS warning 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 drive sy stems and driving saf ety sy stems may also be malfunctioning. &
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. The br aking distance may increase in
an eme rgency braking situation. In addition, 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. #
Drive on carefully. #
Obser vethe messages on the multifunction displa y. #
Consult a qualified specialist workshop.
÷ ESP ®
wa rning lamp lights
up The
yellow ESP ®
wa rning lamp is lit while the engine is running.
ESP ®
is malfunctioning
Other drive sy stems and driving saf ety sy stems may also be malfunctioning. 496
Display messages and warning/indicator lamps
Page 508 of 549

1,
2, 3 ...
4MATIC ..................................................... 16 2
Fu nction .............................................. 16 2
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V)
360° Camera ........................................... 203
Fu nction .............................................. 203
Opening the camera co ver (r eve rsing
camera) .............................................. .207
Selecting a view .................................. 206
Setting favo urites ................................ 207
Swit ching automatic operation
on/off (r eversing camera) .................. .207 A
A/C function Activating/deactivating (multimedia
sy stem) ................................................ 13 3
Switching on/off (control panel) ......... 13 3
ABS (Anti-lock Braking Sy stem) ............ .178 Ac
celeration
see Kickdown
Ac cess data
Editing (Blue tooth®
) .............................3 28
Setting (Blu etoo th®
) ............................ 327
Setting up (business telephony) .......... 326
Ac cident and breakdown manage‐
ment
Mercedes me connect ........................ .320
Ac oustic locking verification signal
Ac tivating/deactivating ......................... 72
Ac tivating/deactivating automatic
vo lume adjustment
Burmes ter®
sur round sound sy stem ... 360
Ac tive Brake Assi st
Fu nction/no tes ................................... 183
Setting ................................................. 185
Ac tive Di stance Assist DISTRO NIC........ 19 0
Calling up a speed .............................. .191
Displ ays in the instrument display .......1 94
Fu nction .............................................. 19 0
Increasing/decreasing speed .............. 191
Re quirements: .................................... .191 Selecting ..............................................
191
St eering wheel buttons ........................ 191
St oring a speed .................................... 191
Switching off/deacti vating .................. 191
Switching on/activating ....................... 191
Sy stem limitations ...............................1 90
Ac tive headlamps .................................... 12 0
Ac tive Lane Keeping Assist .....................219
Ac tivating/deactivating ...................... .220
Ac tivating/deactivating (multimedia
sy stem) ............................................... 222
Ac tivating/deactivating thewa rning .. .222
Fu nction ............................................... 219
Sensitivity (function/no tes) ................. 221
Setting the sensitivity .......................... 222
Sy stem limitations ...............................2 19
Tr ailer operation .................................. .219
Ac tive Parking Assist .............................. 207
Cross Traf fic Alert ................................ 213
Drive AwayAssi st................................ 212
Exiting a pa rking space ........................ 210
Fu nction .............................................. 207
Manoeuvring assi stance ...................... 213
Pa rking ................................................ 209
Sy stem limitations ...............................2 07 Index
505