2021 MERCEDES-BENZ METRIS engine

Lights
Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
0049
Check Left Low
Beam (exa mp le) *T
he cor responding light source is defective.
Ha ve defectiv eLED lights replaced at aqualified specialis twork‐
shop. #
Obser vethen otes on changing abulb (/ page80). #
Replace thef aulty bulb at thef ront (/ page81)or rear
(/ page83).
0049
Aut oLamp sIno perative *T
he light sensor is faulty .The automatic drivin glight saremalfunc‐
tioning. #
Swit chthel ight functions on/o ffmanually (/ page77). #
Consul taqualified specialis tworks hop.
0049
Auto Lamp Function
Inoperative *T
he light sensor is faulty .The automatic drivin glight saremalfunc‐
tioning. #
Swit chthel ight functions on/o ffmanually (/ page77). #
Consul taqualified specialis tworks hop.
0049
Malfunction See Opera-
tor’s Manual *T
heexterior lighting is malfunctioning. #
Consult aqualified specialis tworks hop.
*V ehicles wit htrailer hitch: afuse ma ybefaulty.
* NO
TEElectrica lfuses #
Obser vethei nformation in thes upplement. Youm ayoth‐
erwise failto recognize dangers. #
Che ckthef uses and replace an yblown fuses (see "Fuse assign‐
ment "supplement).
If th ed ispla ycontinues tosho wthe message: #
Consult aqualified specialis tworks hop. Indicator and
warning lamps Indicator and
warning lamps on thei nstru‐
ment clus ter Some sy
stems will per form aself-tes twhen the
ignition is switched on. Som eindicator and warn‐
ing lamps ma ybriefly light up or flash. This
behavior is non-c ritical. These indica tora nd warn‐
ing lamps indicat eamalfunction onl yiftheylight
up or flash af tert he engine has been star tedor
during ajourne y. 260
Displa ymessages and warning and indicator lamps

Saf
etys ystems Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0075
Re stra int sy stem warning
lamp *The
redw arning lam pfor ther estraint sy stem is on while thee ngine
is running.
The restra int sy stem is malfunctioning. &
WARNING Risk of inju rydue tomalfunctions in ther estraint
sy stem
Components in ther estraint sy stem ma ybeactivated unintention‐
ally or no tdeplo yasp lanned in an accident. #
Have ther estraint sy stem checkeda nd repaired immediately
at aq ualified specialis tworks hop. #
Paya ttention tothed ispla ymessages. #
Driv eonc arefull y. #
Have ther estraint sy stem and its components checkedbyaq uali‐
fi ed specialis tworks hop immediately.
Fu rther information on ther estraint sy stem and its components can
be found unde r"Occupan tsafet y".
0027 Brak esystemw arning
lamp
004D Brak esystemw arning
lamp
00DF AB Sw arning lamp *
0027 (USAonly) or 004D(Canada only): The AB Sand brak ewarning
lamps ar eonwhilethee ngine is running.
EBD is no tavailable due toam alfunction. As aresult, BAS, hil lstart
assi stand ESP ®
as well as their driving saf etys ystems ar enotavaila‐
ble.
AT TENTION ASSIS Thas been deactivated and additional driving sys‐
te ms ma yhave been switched of fautomaticall y. &
WARNING Risk of skidding if EBD, ABS and ESP ®
arem al‐
functioning
The wheels ma yblock during braking and ESP ®
does no tperform
an yv ehicle stabilization.
The steerability and braking characteristic sareheavil yimp aired
and theb raking dis tance ma yincrease .Inaddition, other driving
saf etys ystems ar eswitched off. #
Driv eonc arefull y. #
Have theb rake system checkedi mmediately at aqualified
specialis tworks hop. #
Switc hoffthee ngine, waitaw hile and restar tt he engine. #
Chec kwhether thed ispla ymessag ehas disappeared and ESP ®
is
operational.
If th ed ispla ymessag econtinues tobe displa yed: #
Driv eonc arefull y. #
Consult aqualified specialis tworks hop immediatel y. Displ
aymessa gesa nd warning and indicator lamps 261

Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0027
Brak esystemw arning
lamp
004D
Brak esystemw arning
lamp *
0027 (USAonly) or 004D(Canada only): The redb rake warning lamp
is on while thee ngine is running.
The reis insuf ficient 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 rak‐
ing characteristic smaybe impaired. #
Pull overand stop thev ehicle safely as soon as possible,
paying attention toroad and traf ficc onditions. Do no tcon‐
tinue driving under an ycircums tances. #
Consult aqualified specialis tworks hop. #
Do no tadd brak efluid. #
Secur ethe vehicle agains trolling away.
00DF
ABS warning lamp *T
he yello wA BSwarning lam pisonw hilethee ngine is running.
ABS ha sbeens witched of fdue toam alfunction. As aresult, BAS, hill
st ar ta ssis tand ESP ®
as well as their driving saf etys ystems ha vealso
been swit ched off.
AT TENTION ASSIS Thas been deactivated and additional driving sys‐
te ms ma yhave been switched of fautomaticall y. &
WARNING Risk of skidding if ABS and ESP ®
are malfunction‐
ing
The wheels ma yblock during braking and ESP ®
does no tperform
an yv ehicle stabilization.
The steerability and braking characteristic sareheavil yimp aired
and theb raking dis tance ma yincrease. In addition, other driving
saf etys ystems ar eswitched off. #
Driv eonc arefull y. #
Have ABS and ESP ®
ch eckedi mmediately at aqualified spe‐
cialis tworks hop. #
Switc hoffthee ngine, waitaw hile and restar tt he engine. #
Chec kwhether thed ispla ymessag ehas disappeared and ESP ®
is
operational.
If th ed ispla ymessag econtinues tobe displa yed: #
Driv eonc arefull y. #
Consult aqualified specialis tworks hop immediatel y.
If th eA BS cont rolu nit is defective, other sy stems ma ybeavailable
onl yw ithr estrictions or ma ybeunavailable.
00E5
ESP ®
wa rning lamp *
The yello wE SP®
wa rning lam pflashes while thev ehicle is in motion.
ESP ®
or traction cont rolinter venes because ther eisar isk of skidding
or at leas tone wheel is spinning.
Cruise contro lhas been automaticall yswitched off. 262
Displa ymessages and warning and indicator lamps

Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions #
When pulling away,a ccelerat eonlyasm uchasisn ecessary. #
Dep ress thea ccelerator pedal less during your journe y. #
Adapty our driving styletos uitther oad and weather conditions. #
Do no tswit ch offE SP ®
.
In exc eptional cases, it ma ybebette rtos witchoff
ESP ®
(/ page111).
00E5 ESP ®
wa rning lamp *
The yello wE SP®
wa rning lam pisonw hilethee ngine is running.
ESP ®
,B AS, hil lstart assist, ESP ®
trailer stabilizatio nand Crosswind
Assis tare nota vailable due toam alfunction.
AT TENTION ASSIS Tisdeactivated and other driving sy stems could be
automaticall ydeactivated. &
WARNING Risk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning ,ESP ®
canno tcarry out vehicle stabiliza‐
tion. In addition ,other driving saf etys ystems ar eswitched off. #
Driv eonc arefull y. #
Have ESP ®
ch eckedataq ualified specialis tworks hop. #
Switc hthe engine off, wait brief lyand star tt he engine again. #
Chec kwhether thed ispla ymessag ehas disappeared and ESP ®
is
operational.
If th ed ispla ymessag econtinues tobe shown: #
Driv eonc arefull y. #
Consult aqualified specialis tworks hop immediatel y.
00BB ESP ®
OFF warning lamp *
The yello wE SP®
OFF warning lam pisonw hilethee ngine is running.
ESP ®
ha sb eens witched off. ESP ®
traile rstabilizatio nand Crosswind
Assis thave been deactivated. &
WARNING Risk of skidding whe ndriving wi thESP ®
deacti va‐
ted
ESP ®
does no tactto stabiliz ethe vehicle. The availabilit yoffur‐
th er driving saf etys yst ems is also limited. #
Driv eonc arefull y. #
Deactivat eESP®
only forasl ong as thes ituation requires.
If ESP ®
canno tbeactivated, ESP ®
is malfunctioning. #
Have ESP ®
ch eckedi mmediately at aqualified specialist
wo rkshop. #
Switc hESP®
on again.
In exceptiona lcases, it ma ybebette rtos witchoff
ESP ®
(/ page111). Displa
ymessages and warning and indicator lamps 263

Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions #
Adapty our driving styletos uitther oad and weather conditions.
If ESP ®
canno tbeswitched on: #
Driv eonc arefull y. #
Have ESP ®
ch eckedataq ualified specialis tworks hop. Seat belt
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00E9
Seat belt warning lamp *The
reds eat belt warning lam plight suporf lashes af tert he engine
has star ted. Aw arning tone ma yalsos ound.
Fo rc ertain countries only: The reds eat belt warning lam plight sup
fo ram aximu mofs ix seconds af tert he ignition has been switched on.
The seat belt warning lam premind sthe driver and co-driver tofast en
th eir seat belts. #
Fasten your seat belt (/ page27).
00E9
Sea tbelt warning lamp *The
redw arning lam pfor thes eat belt lights up af tert he engine
st arts as soon as thed rive r's or co-driver's door has been closed.
The driver's or front passenger's seat belt is no tfas tened. #
Fasten your seat belt (/ page27).
The warning lam pwill go out.
In vehicles wit hthe occupant classification sy stem (OCS), ther ea re
object sonthe co-driver's seat. #
Take theo bject soffthec o-driver's seat and stowthem in awell-
secured place.
The warning lam pwill go out.
00E9 Seat belt warning lamp *The
reds eat belt warning lam pflashes and an intermit tent wa rning
to ne sounds.
The driver' sorfront passenger' sseatb eltisn otfast ened. Youa re
drivin gatas peedgreater than 15 mp h(25 km/h) or ha vebrief ly
ex ceeded 15mp h(25 km/h). #
Fasten your seat belt (/ page27).
The warning lam pand thei ntermittent warning tone will go out.
In vehicles wit hautomatic co-driver airbag shutoff, ther ea reobjects
on thec o-driver's seat. Youa redrivin gatas peedgreater than
15 mp h(25 km/h) or ha vebriefly exceeded 15mp h(25 km/h). #
Take theo bject soffthef ront passenger seat and stowthem in a
we ll-secured place.
The warning lam pand thei ntermittent warning tone will go out. 264
Displa ymessa gesa nd warning and indicator lamps

Drivin
gsystems Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00BA
Wa rning lam pfor dis‐
ta nce warning function *The
redd ista nce warning lam plight supw hilethev ehicle is in motion.
The dis tance tothev ehicle in front is toos mall fort he selected
speed. #
Increase thed ista nce tothev ehicle in front.
00BA Wa rning lam pfor dis‐
ta nce warning function *The
redd ista nce warning lam plight supw hilethev ehicle is in motion.
Aw arning tone also sounds.
Yo ua reapproachin gavehicle or astationar yobstacle on your antici‐
pated routeate xcessiv espeed. #
Beready toappl ythe brakes immediatel y. #
Payc areful attention tothet raffic situation. If necessar y,apply
th eb rake sora void an obs tacle.
Yo uc an find fur ther information about thed ista nce warning function
in "Activ eBrake Assist" (/ page113). Ve
hicle Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00CC
Po we rsteering sy stem
wa rning lamp *The
redp owersteering sy stem warning lam pisonw hilethee ngine is
ru nning .Awarning tone also sounds.
The po werassi stanc efor thes teering ma ybemalfunctioning. Yo u
ma yneed touse mor eforce tosteer. #
Carefully driv eontoaqualified specialis tworks hop and ha vethe
st eering checkedi mmediatel y.
003E
Door indica torlamp *T
he yello w" door open" indicator lam pislit.
Ad oor is no tfull yc losed. #
Close all thed oors. Engine
Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
00B9
Chec kEngine warning
lamp *The
yello wC heckEngine warning lam pisonw hilethee ngine is run‐
ning.
The rema ybeam alfunction in thef ollowing vehicle sy stems:
R Engine management
R Transmission management
R Injection
R Exhaus tsystem Displa
ymessages and warning and indicator lamps 265

Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
R Ignition sy stem (in vehicles wit hagasoline engine)
R Fuel sy stem
This can cause thee missions limit values tobe exc eeded and the
engine torunine mergency mode. #
Have thev ehicle checkedi mmediately at aqualified specialist
wo rkshop.
00B4
Fu elreser ve wa rning
lamp *The
yello wf uel reser ve wa rning lam pisonw hilethee ngine is run‐
ning.
The fue lsuppl yhas dropped int othe reser verange. #
Refuel thev ehicle.
00AC
Coolant warning lamp *
In vehicles without steering-wheel buttons, thec oolant temp erature
displa yisatt hestar toft he bar displa y(/ pag e142).
In vehicles wit hsteering-wheel buttons, thec oolant temp eratur edis‐
pla yont he instrument clus terisatt hestar toft he scale.
The temp eratur esensor fort he coolant temp eratur edispla yisd efec‐
tive.
The coolant temp eratur eisnol onger being monitored. If thec oolant
is tooh ot,the engine ma ybedamaged. #
Stop immediately in accordance wit hthe traf ficc onditions and
switc hoffthee ngine. Do no tcontinue driving. #
Secur ethe vehicle agains trolling away. #
Consult aqualified specialis tworks hop.
00AC
Coolant warning lamp *T
he redc oolant warning lam pisonw hilethee ngine is running.
The coolant le velist oo lo w.
If th ec oolant le velisc orrect, thea ir suppl ytotheradiator ma ybe
impaired or ther adiator's electric fanm aybe faulty.
The coolant is tooh otand thee ngine is no tbeing adequately cooled. #
Paya ttention tothed ispla ymessages. #
Stop immediately in accordance wit hthe traf ficc onditions and
switc hoffthee ngine. #
Secur ethe vehicle agains trolling away. #
Exit thev ehicle and keep asafed ista nce from it unti lthe engine
has cooled down. #
Chec kthe coolant le vela nd add coolant, complyin gwitht he
instructions (/ page180). #
Ifth ec oolant has tobe topped up frequentl y,ha ve thee ngine
cooling sy stem checkedataq ualified specialis tworks hop. #
Ensur ethat thea ir supply tother adiator is no timp aired, e.g. by a
plastic bag that has been blown ont othe grille. #
Chec kthe coolant temp erature: 266
Displa ymessages and warning and indicator lamps

Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions R
Invehicles without steering-wheel buttons –viathed ispla yon
th eo n-boar dcomputer
R Invehicles wit hsteering-wheel buttons –viathea nalog dis‐
pla yont he instrument clus ter #
Do no tres tart thee ngine until thec oolant temp eratur eisbelow
th es pecified maximum value. If youd o,thee ngine ma ybedam‐
aged. #
Driv eontot he neares tqualified specialis tworks hop. Avoid high
engine loads, e.g. driving on hill yroads or stop-and-go driving.
During normal driving and if thec oolant le velisc orrect, thec oolant
te mp eratur edispla yisp ermitted torise toletter Hor ther ed mar k.
00AC
Coolan twarning lamp *The
redc oolant warning lam pisonw hilethee ngine is running .A
wa rning tone also sounds.
The coolant temp eratur ehasexc eeded them aximum value specified
belo w.The air supply tother adiator ma ybeimpaired or thec oolant
le ve lm aybe tool ow.
The engine has no tbeen suf ficiently cooled and ma ybedamaged. &
WARNING Risk of bu rnsw hen opening theh ood
If yo uo pen theh ood when thee ngine has overheated or when
th er eisaf ireint he engine compartment, thef ollowing situations
ma yoccur:
R Youc oul dc om eintoc ontact wi thhotg ases.
R Youc oul dc om eintoc ontact wi thother hot, escaping operat‐
ing fluids. #
Befor eopening theh ood, allo wthe ove rheated engine to
cool down. #
Inthee vent of afireint he engine compartment, keep the
hood closed and call thef ires ervice. #
Paya ttention tothed ispla ymessages. #
Stop immediately in accordance wit hthe traf ficc onditions and
switc hoffthee ngine. #
Secur ethe vehicle agains trolling away. #
Exit thev ehicle and keep asafed ista nce from it unti lthe engine
has cooled down. #
Chec kthe coolant le vela nd add coolant, complyin gwitht he
instructions (/ page180). #
Ifth ec oolant has tobe topped up frequentl y,ha ve thee ngine
cooling sy stem checkedataq ualified specialis tworks hop. #
Ensur ethat thea ir supply tother adiator is no timp aired, e.g. by a
plastic bag that has been blown ont othe grille. #
Chec kthe coolant temp erature: Displa
ymessages and warning and indicator lamps 267