Page 509 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions
Tyre(s) overheated Reduce
speed *A
tlea st one tyre is overheating. &
WARNING Risk of an accident from driving wi thove rheated tyres
Overheated tyres ma yburst,p articularly at high speeds. #
Reduce speed so that thet yres cool down. #
Reduce speed so that thet yres cool down. Key
Displa
ymessages
Possible causes/consequences and M MSolutions
 Replace key *T
hekeyn eeds tobe replaced. #
Consult aqualified specialis tworks hop.
, Replace key See Owner's
Manual *
Ve hicles with adigital vehicl ekey: onlyaf ewor no authorisations remain fors tartin gt he engine. #
Mak esuret hat thei nterne tconnection is no tlimited bycer tain mobile phon esettings. #
Open theM ercedes me connect weba pp http://www.mercedes.me. and call up thed igital vehicle keys ervice. #
Deactivat ethe service firs ta nd then activat eitagain. #
Ifth ed ispla ymessag estilla ppears, con tact theM ercedes-Benz Cus tomer Assis tance Center (C AC). 506
Displa ymessages and warning/indicator lamps
Page 510 of 585
Displa
ymessages
Possible causes/consequences and M
MSolutions
 Change key batteries *T
hekeyb atte ry is dischar ged. #
Replace theb atter y.
Â
Key not detected (white
displa ymessage) *T
hekeyisc urrently und etected. #
Chang ethe location of thek eyinthev ehicle. #
Ifth ek eyisstill no trecognised, star tt he engine wit hthe keyint he stow agec ompartment .
 Key no tdetected (red dis‐
pla ym essage) *T
hekeyc anno tbed etected and ma ynolonger be in thev ehicle.
The keyisn olon gerint hevehicle and yous wit ch offt he engine:
R youc an no lon gers tart thee ngine.
R youc anno tcentrally loc kthe vehicle. #
Ensur ethat thek eyis in thev ehicle.
If th ek eydetection function ha samalfunction du etoastrongradio signal source: #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Place thek eyinthes towa ge compartment fors tartin gt he engine wit hthe key. Displa
ymessages and warning/indicator lamps 507
Page 511 of 585
Displa
ymessages
Possible causes/consequences and M
MSolutions
 Place the key in the
marked space See Owner's
Manual *T
hekeyd etection function is malfunctioning. #
Chang ethe location of thek eyinthev ehicle. #
Startt he vehicle wit hthe keyint he stow agec ompartment . Ve
hicle Displa
ymessages
Possible causes/consequences and M MSolutions
j Trailer coupling extending… *R
etra ct or extend theb all nec k.
Do no tattem pttospeed up, slo wdownori nitiatethe retracting or extending process using your hand, foot or other
aids. During ther etra cting or extending process, do no tcoupl eat railer.
When theb all nec khasreached an operational position ,the displa ymessag edisappears. 508
Displa ymessages and warning/indicator lamps
Page 512 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions
j Check trailer hitch lock *T
he trailer hitc hisnotoperational when youa redrivin gwithat railer. #
Stop thev ehicle immediately ,paying attention toroad and traf ficc onditions ,and switc hoffthee ngine. #
Uncoupl ethe trailer and safeguar ditagains trolling away. #
Initiat eanewswivelling procedur e. #
Ifth eb all nec kisextended, press and hol dthe button on thet ailgat euntil theb all nec kengages beneat hthe
bumper. #
When thed ispla ymessag edisappears, couple up thet railer and driv eon. &
WARNING Risk of an accident if theb all nec kisnotloc ked
If th eb all nec kisnotinthel oc kedp osition ,the trailer ma ycome loose. #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions.
Do no tcontinu edriving under an ycircums tances. #
Uncoupl ethe trailer and secur eitagains trolling away. #
Initiat eanewswivelling procedur eand do no tre-couple thet railer until thed ispla ymessag edisappears. If
th ed ispla ymessag edoes no tdisappear ,the trailer hitc hisdefectiv eand theb all nec kisnotloc ked. #
Do no tcouple up thet railer .Drive on without thet railer .Notet he reduced ground clearance due tothe
unlo cked ball nec k. #
Consult aqualified specialis tworks hop.
The trailerh itchisn otoperational when thev ehicle is at astandstill. Displa
ymessages and warning/indicator lamps 509
Page 513 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions #
Uncoupl ethe coupled trailer and safeguar ditagains trolling away. #
Initiat eanewswivelling procedur e. #
Ifth eb all nec kisretra cted: press and hol dthe button on thet ailgat euntil theb all nec kengages verticall yin
th el oc kedp osition and then engages beneat hthe bumper. #
Ifth eb all nec kisextended: press and hold theb utton on thet ailgat euntil theb all nec kengages beneat hthe
bumper.
If th ed ispla ymessag edoes no tdisappear ,the trailer hitc hisdefectiv eand theb all nec kisnotloc ked. #
Do no tcouple up thet railer .Drive on without thet railer .Notet he reduced ground clearance due tothe
unlo cked ball nec k. #
Consult aqualified specialis tworks hop.
Apply brake to deselect
Park (P) position *
Yo uh ave attem ptedtos hiftthe transmission out of position jand int oanother transmission position. #
Depress theb rake pedal.
To shift out of PorN,
depress brake and start
engine *
Yo uh ave attem ptedtos hiftthe transmission out of position jori intoa nother transmission position. #
Depress theb rake pedal. #
Startt he engine.
Risk of vehicle rolling
Driver door open and trans-
mission not in P *
The driver's door is no tfully closed and thet ransmission is in position k,iorh. #
Shif tthe transmission toposition jwhen youp arkt he vehicle. 51 0
Displaymessa gesa nd warning/indicator lamps
Page 514 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions
Np ermanently active Risk
of vehicle rolling *
While thev ehicle is rolling or while youa redriving, thet ransmission has been shif tedtop osition i. #
Depress theb rake pedal tostop and, when thev ehicle is stationar y,shif tthe transmission toposition j. #
Tocontinu eyour journe y,shif tthe transmission toposition hork.
Only select Park (P) when
vehicle is stationary *
The transmission can be shif tedtop osition jonlyw hen thev ehicle is stationar y.
Without changin ggear,
consult workshop *T
he transmission is malfunctioning. The transmission position can no longer be shif ted. #
When thet ransmission is in position h,consult aqualified specialis tworks hop and do no tshif tthe transmis‐
sion position. #
Fora llot her transmission positions, par kthe vehicle safely. #
Consult aqualified specialis tworks hop.
d Vehicle is operational
Switch off the ignition
before exiting *Y
ou ar eleaving thev ehicle when it is in aready-to-driv estate. #
When youl eave thev ehicle, switc hoffthei gnition and take thek eywit hyou. #
Ifyo udon otlea vethev ehicle, switc hoffthee lectrical consumers, e.g. thes eat heater .Otherwise, the12V
batter ymaydischar geand it will then be possible tostar tt he vehicle onl yusing adonor batter y(startin gassis‐
ta nce). Displa
ymessa gesa nd warning/indicator lamps 511
Page 515 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions
Transmission Malfunction
Stop *
The transmission is malfunctioning. The transmission shifts toposition iautomaticall y. #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Switc hthe transmission toposition j. #
Consult aqualified specialis tworks hop.
Reversing not poss. Con-
sult workshop *T
he transmission is malfunctioning. Reverseg ear can no longer be engaged. #
Consult aqualified specialis tworks hop.
Stop vehicle Leave engine
running Wait Transmission
cooling *T
he transmission is overheating. Pulling away ma ybet emporaril yimp aired or no tpossible. #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions .Donot
continu edriving under an ycircums tances. #
Lea vethee ngine running. #
Wait until thed ispla ymessag edisappear sbefor epulling away.
Auxiliar ybattery malfunc-
tion *T
he auxiliary batteryfor thet ransmission is no longer being charge d. #
Consult aqualified specialis tworks hop. #
Untilthen, alw aysm anually se tthe transmission toposition jbefor eyou switc hoffthee ngine. #
Befor eleaving thev ehicle, apply thee lectric parking brake.
Air conditionin gMalfunc-
tion See Owner's Manual *O
peration of thec limat econtrol sy stem is temp orarily restricted. Air flow and fresh air suppl yaresettoa utomatic
mode. #
Have thec limat econtrol sy stem checkedataq ualified specialis tworks hop. 512
Displaymessa gesa nd warning/indicator lamps
Page 516 of 585
Displa
ymessages
Possible causes/consequences and M
MSolutions
Apply brake to select R *
Yo uh ave attem ptedtos hiftthe transmission out of position hand int otransmission position k. #
Depress theb rake pedal. #
Switc hthe transmission toposition k.
j
Operation only possible in
transmission position N *
Yo uh ave attem ptedtos wivel theb all nec kand thet ransmission is no tinposition i. #
Switc hthe transmission toposition i.
j
Operation only possible in
transmission position P *
Yo uh ave attem ptedtos wivel theb all nec kand thet ransmission is in position k,iorh. #
Depress theb rake pedal. #
Switc hthe transmission toposition j. Displa
ymessages and warning/indicator lamps 513