Page 441 of 533

Displa
ymessages
Possible causes/consequences and M
MSolutions
J Check brake fluid level *T
her eisi nsufficient brak efluid in theb rake fluid reser voir. &
WARNING Risk of an accident du etolowbrak efluid le vel
If th eb rake fluid le velist oo lo w,theb raking ef fect and theb raking characteristic smaybe impaired. #
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. #
Consult aqualified specialis tworks hop.
Do no ttop up theb rake fluid. #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions .Donot
continu edriving under an ycircums tances. #
Consult aqualified specialis tworks hop.
Do no ttop up theb rake fluid.
#
Chec kbrak epad wear *T
he brak elinings ha vereached thew ear limit. #
Consult aqualified specialis tworks hop.
G Inoperative *O
ne or mor emainf unctions of theM ercedes me connect sy stem ar emalfunctioning. #
Consult aqualified specialis tworks hop. 438
Displa ymessages and warning/indicator lamps
Page 442 of 533

Displa
ymessages
Possible causes/consequences and M
MSolutions
Active Brake Assist Func-
tions currently limited See
Owner's Manual *
Ve hicles with theD riving Assistance Package: ActiveB rake Assi stwit hc ross-traf ficf unction, Evasi veSteering
Assis torP RE‑SAFE ®
PLUS ar etemporarily una vailable or onl ypartiall yavailable.
Ve hicles without theD riving Assistance pa ckage: ActiveB rake Assi stistemp orarily una vailable.
The ambien tcondition sareoutside thes ystem border s. #
Driv eon.
As soon as thea mbient conditions ar ewithin thes ystem borders, thes ystemw ill become available again. #
Ifth ed ispla ymessag edoes no tdisappear ,stopt he vehicle while paying attention toroad and traf ficc onditions
and restar tt he engine.
Active Brake Assist Func-
tions limited See Owner's
Manual *
Ve hicles with Drivin gAssistanc ePacka ge: ActiveB rake Assi stwit hc ross-traf ficf unction, Evasi veSteering
Assis torP RE‑SAFE ®
PLUS is malfunctioning.
Ve hicles without theD riving Assistance Package: ActiveB rake Assi stis malfunctioning. #
Consult aqualified specialis tworks hop.
PRE-SAFE inoperative See
Owner's Manual *
PRE‑SAFE ®
functions ar emalfunctioning. #
Consult aqualified specialis tworks hop. Displa
ymessages and warning/indicator lamps 439
Page 443 of 533
Displa
ymessages
Possible causes/consequences and M
MSolutions
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R soiling of thes ensors
R heavy rain
R extende dcountr ydriving wi thout other traf fic, e.g. in thed esert
Driving sy stems and driving saf etys ystems ma ybem alfunctioning or temp orarily una vailable.
Onc ethe cause of thep roblem is no longer present ,driving sy stems and driving saf etys ystems 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 nallsenso rs . #
Restar tt he engine. 440
Displaymessa gesa nd warning/indicator lamps
Page 444 of 533
Displa
ymessages
Possible causes/consequences and M
MSolutions
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R soiling of thes ensors
R heavy rain
R extende dcountr ydriving wi thout other traf fic, e.g. in thed esert
Driving sy stems and driving saf etys ystems ma ybem alfunctioning or temp orarily una vailable.
Onc ethe cause of thep roblem is no longer present ,driving sy stems and driving saf etys ystems 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 nallsenso rs . #
Restar tt he engine. Displa
ymessages and warning/indicator lamps 441
Page 445 of 533
Displa
ymessages
Possible causes/consequences and M
MSolutions
6 Restraint sys. malfunction
Consult workshop *T
herestra int sy stem is faulty . &
WARNING Risk of inju ryor fata linjur ydue toam alfunctio nintherestra int sy stem
If th er estraint sy stem is malfunctioning, restra int sy stem components ma ybetriggered unintentionally or
might no tbetriggered at all in thee vent of an accident. Thi smayaffect thes eat belt tensioner or airbag, for
ex ample. #
Have ther estraint sy stem checkeda nd repaired immediately at aqualified specialis tworks hop. De
tection of arestraint sy stem malfunction:
R The 6 restra int sy stem warning lam pdoes no tlight up when thei gnition is switched on.
R The 6 restra int sy stem warning lam plight supc ontinuousl yorrepeatedl yduring ajourne y. #
Consult aqualified specialis tworks hop immediatel y.442
Displaymessa gesa nd warning/indicator lamps
Page 446 of 533

Displa
ymessages
Possible causes/consequences and M
MSolutions
Front-passenger airbag
enabled See Owner's Man-
ual *T
he front passenger airbag is enabled while thev ehicle is in motion:
R evenw henac hild, asmall adult or an object weighin gless than thes ystemw eight thre shold is located on the
front passenger seat
R evenw hent he front passenger seat is no toccupied
The sy stem ma ydetect objects or forc es that ar eaddin gtot heweight applied tothes eat. &
WARNING Risk of inju ryor fata linjur ywhen using achild restra int sy stem while thef ront passenger airbag
is enabled
If yo us ecur eac hild in achild restra int sy stem on thef ront passenger seat and thef ront passenger airbag is
enabled, thef ront passenger airbag can deplo yintheevent of an accident.
The child could be stru ck bythea irbag. #
Ensure, bo thbefor eand during thej ourne y,that thes tatus of thef ront passenger airbag is cor rect.
NEVER us earearwardfacing child restra int on aseat pr otected byan ACTIVE FRONT AIRB AGin front of it;
DE ATHorS ERIOU SINJU RYtotheC HILD can occur. #
Pullovera nd stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Chec kthe status of thea utomatic front passenger airbag shutof f. #
If necessar y,consult aqualified specialis tworks hop immediatel y. Displ
aymessa gesa nd warning/indicator lamps 443
Page 447 of 533

Displa
ymessages
Possible causes/consequences and M
MSolutions
Front-passenger airbag dis-
abled See Owner's Manual *T
he front passenger airbag is disabled, eventhough an adult or aperson wit habuild cor responding tothat of an
adult is seated on thef ront passenger seat. If additional forc es ar eapplied tothes eat, thew eight thes ystem
de tects ma ybetoo low. &
WARNING ‑Riskofi njuryor eve nfatal injur ywhen thef ront passenger airbag is disabled
If th ef ront passenger airbag is disabled, It will no tbedeployedint heeve nt of an accident and canno tperform
its intended pr otectiv efunction.
Ap erson in thef ront passenger seat could then, fore xamp le, com eintoc ontact wi th thevehicle interior ,espe‐
cially if thep erson is sitting tooc lose tothed ashboard. #
Beawareoft hestatus of thef ront passenger airbag bo thbefor eand during thej ourne y. #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Chec kthe status of thea utomatic front passenger airbag shutof f. #
If necessar y,consult aqualified specialis tworks hop immediatel y.444
Displaymessa gesa nd warning/indicator lamps
Page 448 of 533
Drivin
gsystems Displa
ymessages
Possible causes/consequences and M
MSolutions
À ATTENTION ASSIST: Take a
break! *A
TTENTION ASSIS Thas de tected fatigue or an increasing la ckof concentration on thep artoft he driver
(→ pag e219). #
Ifnecessa ry,t ak eab reak.
À
ATTENTION ASSIST inoper-
ative *A
TTENTION ASSIS Tismalfunctioning. #
Consult aqualified specialis tworks hop.
É Vehicle rising *Y
our vehicle is adjusting tothel eve lyou ha veselected.
É Vehicle rising Please wait *T
hevehicle le velist oo lo wandthev ehicle is rising tothes elected vehicle le vel. #
Wait until thed ispla ymessag edisappear sbefor epulling away. Displ
aymessa gesa nd warning/indicator lamps 445