lock MERCEDES-BENZ GL SUV 2012 Owners Manual

Displa
ymessages Possible causes/consequences and
M Solutions
A The tailgat
eisopen.
G WARNING
When the engine is running ,exhaus tgases can enter the vehicle
interior if the tailgate is open.
There is arisk of poisoning.
X Close the tailgate. ? The bonnet is open.
Aw
arning ton ealso sounds.
G WARNING
The open bonne tmay then block your view when the vehicle is in
motion.
There is arisk of an accident.
X Pull over and stop the vehicle safely as soon as possible ,paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 181).
X Close the bonnet. Active bonnet mal‐
function Se
eOwn‐ er's Manual Th
ea ctive bonnet (pedestrian prote ction) is not activ edue to a
malfunction or because it has already been triggered.
X Visit aqualified specialist workshop. C At least one door is open.
Aw
arning ton ealso sounds.
X Close all doors. _
2nd
se
at row, left
Not locked or
2nd sea
tr ow,r ight Not locked Th
es econ drow of seat sisnot engage donthe left-hand and/or
ri gh t-hand side in the rear.
X Fol db ackt he second row of seats unt ilit engages. _
3rd
seat row, left
No
tl ocked or
3rd sea
trow,r ight Not locked Th
et hird row of seats is not engaged on the left-hand or ri ght-hand
side.
X Fol db ackt he third row of seats unt ilit engages. 320
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
j
Ch
eckt railer hitch lock Th
et railer to whitch is no tcorrectly engaged.
Aw arning ton ealso sounds.
X Stop th evehicle immediately, payin gattentio ntoroad and traf-
fic conditions, and switc hoff th eengine.
X Secure the vehicl eagainst rolling away (Y page 181).
X Engage the trailer coupling' sball coupling in the end position
(Y page 259). Ð
Power
steering mal‐
function Se
eOwn‐ er's Manual Th
ep ower steerin gassistanc eisf aulty.
Aw arning ton ealso sounds.
G WARNING
You will need to use mor eforce to steer.
Ther eisar isk of an ac cident.
X Check wheth er youare able to appl ythe ext raforce required.
X If you are abl etosteer safely: carefully drive on to aqualified
specialist workshop.
X If you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop. &
inoperativ
eBat‐ tery low Yo
uh ave attempted to switch on the auxiliary heating or to acti-
vate adeparture tim eusing the on-boar dcomputer after operating
the auxiliary heatin gtwice.
X Let the engine run for 10 seconds.
The auxiliary heating is operational again. The on-board voltage is too low. The auxiliary heating has switched
itself off or cannot be switched on (Y
page 148).
X Driv efor alonger distance.
The battery is being charged. The auxiliary heatin gisoperational
again as soon as the on-boar delectrical system voltage is suf-
ficient. &
inoperative
Refuel
vehicle There is too little fuel in the fuel tank
.The auxiliary heating cannot
be switched on (Y page 148).
X Refuel at the nearest filling station. Displa
ymessages
321On-board compu tera nd displays Z

Displa
ymessages Possible causes/consequences and
M Solutions
&
in
operative See Owner'
sMan. Th
ea uxiliar yheatin ghasatemporary ma lfunction or is faulty.
X When the vehicl eisonalevel surface and the engin ehas cooled
down, make up to four attempts to switch on the auxiliary heat-
ing, waiting several minutes between each attempt
(Y page 148).
X If the auxiliary heating does not switch on, consult aqualified
specialist workshop. Teleph
oneNo service Your vehicl
eisoutside the network provider's transmitter/
receiver range.
X Wait until the mobile phone operational readiness symbol
appears in the multifunction display. ¥
Top
up washer fluid The washe
rfluid level in the washer fluid reservoir has dropped
below the minimum.
X Top up the washer fluid (Y page 364).Wipe
rmalfunction‐ ing Th
ew indscreen wipers are malfunctioning.
X Visit aqualified specialist workshop. Hazard warning
lamp
smalfunction‐ ing Th
eh azard warning lamps are faulty.
X Visit aqualified specialist workshop. Key
Display messages Possible causes/consequences and
M Solutions
Â
Ke
yd oes not belong to vehicle Yo
uh ave put the wrong key in the ignition lock.
X Use the correct key. Â
Replac
ekey Th
ek ey needs to be replaced.
X Visit aqualified specialist workshop. Â
Change ke
ybatter‐ ies Th
eb atteries of the KEYLESS-GO key are discharged.
X Change the batteries (Y page 79).322
Display messagesOn-board computer and displ
ays

Displa
ymessages Possible causes/consequences and
M Solutions
Â
Ke
yn ot detected (red display message) Th
eK EYLESS-GO key is not in the vehicle.
Aw arning ton ealso sounds.
If th eengineiss witched off ,you can no longer loc kthe vehicle
cen trally or start the engine.
X Pull over and stop the vehicle safely as soon as possible ,paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 181).
X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running
because there is interference from
astron gsource of radio waves.
Aw arning ton ealso sounds.
X Pull ove rand sto pthe vehicle safel yassoonasp ossible, paying
attention to roa dand traffic conditions.
X Secure the vehicl eagainst rolling away (Y page 181).
X Operate the vehicle with the key in the ignition lock if necessary. Â
Ke
yn ot detected (white displa
ymes-
sage) The KEYLE
SS-GO key cannot be detected at present.
X Chang ethe location of the key with the KEYLESS-GO functions
in the vehicle.
If the KEYLESS-GO key is still not detected:
X Operate the vehicle with the key in the ignition lock if necessary. Â
Ke
ys till in vehi‐ cle Th
eK EYLESS-GO key has bee ndetected inside the vehicle during
locking.
X Remov ethe KEYLESS-GO key from the vehicle. Â
Remove starting
button
,then insert key KEYLESS-GO is temporarily malfunctionin
gorisdefective. Awarn-
ing ton ealso sounds.
X Inser tthe key in tothe ignition lock and tur nittothedesired
position.
X Visi taq ualifieds pecialist workshop. Â
Clos
edoors to lock vehicle At leas
tone doo riso pen. Awarning ton ealso sounds.
X Close all door sand lock the vehicle again. Display messages
323On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions
!
The yellow AB
Swarning
lamp is lit while the
engine is running. ABS (Anti-lock Brake System) has been deactivated due to
afault.
For this reason, BAS (Brake Assist), BAS PLUS, ESP ®
(Electronic
Stability Program), PRE-SAFE ®
,P RE-SAFE ®
Brake, COLLISION
PREVENTION ASSIST, the HOLD function, hill start assist, cross-
wind driving assistance, adaptive brake lights and ESP ®
trailer
stabilisation, for example, are also deactivated.
ATTENTION ASSIST is deactivated.
G WARNING
The brake syste mcontinue stofunction normally, but without the
functions listed above. The wheel scould therefor elock if you
brake hard ,for example.
The steerabilit yand braking characteris tics may be severely affec-
ted .The brakin gdistance in an emergenc ybraking situatio ncan
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
The danger of skidding and having an accident increases.
X Observ ethe additiona ldisplay messages in the multifunction
display.
X Driv eonc arefully.
X Visit aqualified specialist workshop.
If the ABS control unit is faulty, there is also apossibility that other
systems, such as the navigation system or the automatic trans-
mission ,will not be available. Warning and indicator lamp
sinthe instrument cluster
327On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions
!
The yellow AB
Swarning
lamp is lit while the
engine is running. ABS is temporarily unavailable. Therefore, BAS
,BAS PLUS, ESP ®
,
EBD (electronic brake force distribution), PRE-SAFE ®
,
PRE-SAFE ®
Brake, COLLISION PREVENTION ASSIST, the HOLD
function, hil lstart assist, crosswind driving assistance, the adap-
tive brake lights and ESP ®
trailer stabilisation, for example, are
also deactivated.
ATTENTION ASSIST is deactivated.
Possible causes:
R self-diagnosis is not yet complete.
R the on-board voltage may be insufficient.
G WARNING
The brake syste mcontinue stofunction normally, but without the
functions listed above. The front and rear wheel scould therefore
lock if you brake hard ,for example.
The steerabilit yand braking characteris tics may be severely affec-
ted .The brakin gdistance in an emergenc ybraking situatio ncan
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
There is arisk of an accident.
X Carefull ydrive on asuitable stretch of road, making slight steer-
ing movement sataspeed above 20 km/h.
The functions mentioned above are available again when the
warning lamp goes out.
If the warning lamp is still on:
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. 328
Warnin
gand indicator lam psin th einstru ment clusterOn-board computer and displays

Problem Possible causes/consequences and
M Solutions
!
The yellow AB
Swarning
lamp is lit while the
engine is running. A
warning tone also
sounds. EBD is faulty. Therefore, ABS
,BAS, BAS PLUS, ESP ®
,P RE -SAFE ®
,
PRE-SAFE ®
Brake, COLLISION PREVENTION ASSIST ,the HOLD
function, hill start assist, crosswind drivin gassis tance, the adap-
tive brake lights and ESP ®
trai lers tabilisation, for example, are
also not available.
ATTENTIO NASSIST is deactivated.
G WARNING
Th eb rake system continue stofunction normally, but without the
functions listed above. The front and rear wheel scould therefore
lock if you brake hard ,for example.
The steerabilit yand braking characteristics may be severely affec-
ted. The braking distance in an emergenc ybraking situatio ncan
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
The danger of skidding and having an accident increases.
X Observ ethe additiona ldisplay messages in the multifunction
display.
X Driv eonc arefully.
X Visit aqualified specialist workshop. J֌!
The red brake warning
lamp, the yellow ESP
®
and ESP ®
OFF warning
lamps and the yellow
ABS warning lamp are
lit while the engine is
running. ABS and ESP
®
are malfunctioning. For this reason, BAS PLUS,
PRE-SAFE ®
,P RE-SAFE ®
Brake, COLLISION PREVENTION ASSIST,
the HOLD function, hill start assist, crosswind driving assistance,
the adaptive brake lights and ESP ®
trailer stabilisation, for exam-
ple, are also not available.
ATTENTION ASSIST is deactivated.
G WARNING
The brake syste mcontinue stofunction normally, but without the
functions listed above. The front and rear wheel scould therefore
lock if you brake hard ,for example.
The steerabilit yand braking characteristics may be severely affec-
ted. The braking distance in an emergenc ybraking situatio ncan
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilis ethe vehicle.
The danger of skidding and having an accident increases.
X Observ ethe additiona ldisplay messages in the multifunction
display.
X Driv eonc arefully.
X Visit aqualified specialist workshop. Warnin
gand indicator lam psin th einstrument cluster
329On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions
?
The red coolant warn-
ing lam
pcomes on
while the engin eisrun-
ning. The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator
may be blocked or the electric engine radiator fan may be mal-
functioning.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X
Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Secure the vehicle against rolling away (Y page 181).
X Leave the vehicle and keep asafe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and top up the coolant, observing the
warning notes (Y page 363).
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X Do not start the engine again until the coolant temperature is
under 120 †. The engine may otherwise be damaged.
X Drive to the nearest qualified specialis tworkshop.
X Avoid heav yloads on the engin easyou do so, e.g. driving in
mountainous terrain and stop-star ttraffic. ?
Th
er ed coolan twarn-
ing lamp comes on
while the engine is run-
ning. Awarning tone
also sounds. The coolant temperature has exceeded 120 †. The airflow to the
engine radiator may be blocked or the coolant level may be too
low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartmen tto
catch fire.
Stea mfrom th eoverh eated engine can als ocaus eserious burns
which can occu rjust by opening the bonnet.
This pose sarisk of injury.
X Observe the additional display messages in the multifunction
display.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Secur ethe vehicle against rolling away (Y page 181).334
Warning and indicator lamps in th
einstru ment clusterOn-board computer and displays

Problem Possible causes/consequences and
M Solutions
X
Leave the vehicle and keep asafe distance from the vehicle until
the engine has cooled down.
X Check the coolant level and top up the coolant, observing the
warning notes (Y page 363).
X If you have to top up the coolant frequently, have the engine
cooling system checked.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialis tworkshop.
X Avoid heav yloads on the engin easyou do so, e.g. driving in
mountainous terrain and stop-star ttraffic. Driving systems
Problem Possible causes/consequences and
M Solutions
·
Th
er ed distance warn-
ing function warning
lam pcomes on while
the vehicle is moving. The distance to the vehicle in front is too smal
lfor the speed
selected.
X Increase the distance. ·
The red distance warn-
ing func
tion warning
lam pcomes on while
the vehicle is moving. A
warnin gtone also
sounds. You ar
eapproaching avehicle or astationary obstacle in your line
of travel at too hig haspeed.
X Be prepared to brak eimmediately.
X Pa yc areful attention to the traffic situation. You may have to
brake or take evasive action.
Further information on DISTRONIC PLUS (Y page 198).
Further information on PRE-SAFE ®
Brake (Y page 68).
Further information on the distance warning function
(Y page 63). Warnin
gand indicator lam psin th einstru ment cluster
335On-board computer and displays Z

Usefu
linfor mati on
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variation sare pos-
sible. Note that your vehicl emay not be
equippe dwith all of the function sdescri-
bed. This is also the case for system sand
functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page25). Stowage areas
Loadin
gguidelines G
WARNING
Secure and positio nthe load as described in
the loadin gguidelines.
Otherwise, vehicle occupants could
be injured by the load being thrown around in
the event of sharp braking, asudden change
in direction or an accident.
You will find further information in the "Secur-
ing aload" section.
Even if you follow all the loadin gguidelines,
the load will increase the risk of injury in the
event of an accident. G
WARNING
Keep the tailgate closed when the engine is
running. Otherwise, you could be poisoned by
exhaust fumes enterin gthe vehicle.
The handling characteristics of aladen vehi-
cle are dependent on the distribution of the
load within the vehicle. For this reason, you
should observe the following notes when
transporting aload:
R when transpor ting aload, never exceed the
maximum permissible gross vehicle weight or the permissible axle loads for the vehicle
(includin
goccupants).
R position heavy loads as far forward saspos-
sible and as low down in the load compart-
men tasp ossible.
R the load must not protrude abov ethe upper
edge of the seat backrests.
R always plac ethe load against the rea ror
front seat backrests .Make sure that the
seat backrests are securely locked into
place.
R hook in the safety net when loading.
R always place the load behind unoccupied
seats if possible.
R secure the load with sufficiently stron gand
wear-resistant lashing material. Pad sharp
edges for protection.
i Load restraints are available at any quali-
fied specialis tworkshop, e.g. aMercedes-
Benz Servic eCentre. Stowage compartments
Important safety notes G
WARNING
The stowage compartments must be closed
when item sare store dinthem. Luggage nets
ar en ot designed to secur eheavy item sof
luggage.
You or other vehicle occupant scould be
injure dbyo bjectsbeing thrown around if you:
R brak esharply
R change direction suddenly
R arei nvolved in an accident
Sharp-edge dand fragile object smust not be
placed in the luggag enet. 338
Stowage areasStowing and features