Page 463 of 533
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 ekeyinthes ma rtphone: onlyafew or 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 the" Digital Car Keyint he
smartphone" service. #
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).
 Change key batteries *T
hekeyb atte ry is dischar ged. #
Replace theb atter y. 460
Displa ymessages and warning/indicator lamps
Page 464 of 533

Displa
ymessages
Possible causes/consequences and M
MSolutions
 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.
 Plac ethe keyint he
marke dspac eSeeOwner'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 . Displa
ymessages and warning/indicator lamps 461
Page 465 of 533

Ve
hicle Displa
ymessages
Possible causes/consequences and M
MSolutions
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.
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 onl ybeshiftedtop osition jwhen thev ehicle is stationar y. 462
Displa ymessages and warning/indicator lamps
Page 467 of 533

Displa
ymessages
Possible causes/consequences and M
MSolutions
Stop vehicle Leave engine
runnin gWait Transmission
cooling *T
he transmission has overheated. Pulling away can be temp orarily impaired 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 veengine 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. 464
Displa ymessages and warning/indicator lamps
Page 471 of 533
Displa
ymessages
Possible causes/consequences and M
MSolutions
M *T
he engine bonne tisopen. &
WARNING Risk of accident du etodriving wit hthe engine bonne tunlo cked
An unloc kede ngin ebonn etma yopen up when thev ehicle is in motion and bloc kyour vie w. #
Neveru nloc kthe engine bonne twhen driving. #
Befor eevery trip, ensur ethat thee ngine bonn etis loc ked. #
Pull overand stop thev ehicle safely as soon as possible. #
Close thee ngine bonn et.
C *A
tlea st one door is open. #
Close al ldoo rs. 468
Displaymessa gesa nd warning/indicator lamps
Page 472 of 533
Displa
ymessages
Possible causes/consequences and M
MSolutions
N *T
he boo tlid is open. &
WARNING Risk ofexhaus tgas poisoning
Combustio nengines emit poisonous exhaus tgases suc hascarbon monoxide. Exhaus tgases can enter the
ve hicle interior if theb ootlid is open when thee ngine is running ,especially if thev ehicle is in motion. #
Alw ayss witc hoffthee ngine befor eopening theb ootlid. #
Neverd rive wit hthe boo tlid open. #
Close theb ootlid.
_ Example:Front left seat
backrest not locked *T
he seat backres tofthe cor responding front seat is no tengaged. #
Push thes eat backres tbacku ntil it engages.
¥
Top up washer fluid *T
hewasher fluid le velint hewasher fluid reser voir has dropped belo wthe minimum. #
Topupt hewasher fluid . Displa
ymessages and warning/indicator lamps 469
Page 475 of 533

Displa
ymessages
Possible causes/consequences and M
MSolutions
Adaptive Highbeam Assist
Plus Camera view restric-
ted See Owner's Manual *T
he camer aviewisr estricted. Possible causes:
R dirtont he windscreen in thec amera's field of vision
R heavy rain, sno worfog
Driv ings ystems and driving saf etys yst ems ma ybemalfunctioning or temp orarily una vailable.
Onc ethe cause of thep roblem is no longer present ,driving sy stems and driving saf etys yst ems ar eavailable again.
If th ed ispla ymessag edoes no tdisappear: #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Clea nthe windscreen. Wa
rning and indicator lamps Overvie
wofwarningand indicator lamps Som
esystems per form aself-tes twhen thei gni‐
tion is switched on. Some warning and indicator
lamps ma ybriefly light up or flash. This behav‐
iour is non-critical. Thes ewarning and indicator
lamps onl yindicat eamalfunction if they light up
or flash af tert he engine is star tedord uring a
journe y. Instrument displa
yinthe widesc reen cockpit Prog
ressiv esetting (widescreen cockpit) 472
Displaymessa gesa nd warning/indicator lamps
Page 476 of 533
If
yo us elect thep rogressiv edispla ysetting in
ve hicles wit hawidescreen cockpit, thep osition
of thei ndicator lamps in thei nstrument display
ch anges.
Wa rning and indicator lamps:
L Dipped beam (→
page119 )
T St
anding light s(→pag e119 )
K Main beam (→
page121 )
#! Tu
rn signal light (→ page121 )
R Re
ar fogl ight (→ page119 ) ü
Seat bel
tisnotfast ened
(→ pag e482)
J Brakes (red) (→
page474 )
J Brakes (yell
ow)(→pag e474 )
! ABS malfunction (→
page474 )
÷ ESP®
(→ page 474)
å ESP®
OFF (→ page474 )
! Electric parking brak
e(→pag e474 ) Ð
St
eering assis tance malfunction
(→ page 484)
# Electrical
fault (→ page485)
6 Re
stra int sy stem (→ page474 )
; Engine diagnosis (→
page485)
8 Fu
elreser vewit hfuel filler cap loca‐
tion indicator (→ page485)
? Coolant
tooh ot/cold (→ page485)
· Dis
tance warning (→ page483)
h Ty
re pressur emonitoring sy stem
(→ pag e488) Displa
ymessages and warning/indicator lamps 473