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 480 of 549
Display messages
Possible causes/consequences and M
MSolutions
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.
Tyre(s) overheated *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. #
Drive more sl owly.
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 may bur st, particularly at high speeds. #
Reduce speed so that the tyres cool down. #
Reduce speed so that the tyres cool down. Display messages and
warning/indicator lamps 477
Page 481 of 549
Key
Display messages
Possible causes/consequences and M
MSolutions
Á Key not detected (red dis‐
play message) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page142).
Á
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
Á Key not detected (white
display message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, start the engine with theke y in the slot (/ page142). 478
Displaymessa ges and warning/indicator lamps
Page 482 of 549
Display messages
Possible causes/consequences and M
MSolutions
Á Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page73).
Á
Place the key in the
marked space See Owner's
Manual *T
hekey de tection function is malfunctioning. #
Change the location of theke y in theve hicle. #
Start theve hicle with theke y in the slot (/ page142). Ve
hicle Display messages
Possible causes/consequences and M MSolutions
Front/rear differential lock
system malfunction *T
he dif fere ntial lo cks are malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be malfunctioning. Display messages and
warning/indicator lamps 47 9
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
