2021 MERCEDES-BENZ METRIS MY21 Operator's Manual

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
0075
SRS Malfunction:
Servic eRequired *
The restra int sy stem is malfunctioning. In addition, the0075 warn‐
ing lam ponthe instrument clus terl ights up. &
WARNING Risk of inju rydue tomalfunctions in ther estraint
sy stem
Components in ther estraint sy stem ma ybeactivated uninten‐
tionall yornotdeplo yasp lanned in an accident. #
Have ther estraint sy stem checkeda nd repaired immedi‐
atel yataq ualified specialis tworks hop. Fu
rther information on ther estraint sy stem and its components can
be found unde r"Occupan tsafet y".
0075 Fr .L eftM alf.S ervice
Req. (exa mp le) *T
he cor responding restra int sy stem is malfunctioning. In addition,
the 0075 warning lam ponthe instrument clus terl ights up. &
WARNING Risk of inju rydue tomalfunctions in ther estraint
sy stem
Components in ther estraint sy stem ma ybeactivated uninten‐
tionall yornotdeplo yasp lanned in an accident. #
Have ther estraint sy stem checkeda nd repaired immedi‐
atel yataq ualified specialis tworks hop. #
Consult aqualified specialis tworks hop immediatel y.
0075 Front Left Malfunction
Service Required (exa m‐
ple) *T
he cor responding restra int sy stem is malfunctioning. In addition,
the 0075 warning lam ponthe instrument clus terl ights up. &
WARNING Risk of inju rydue tomalfunctions in ther estraint
sy stem
Components in ther estraint sy stem ma ybeactivated uninten‐
tionall yornotdeplo yasp lanned in an accident. #
Have ther estraint sy stem checkeda nd repaired immedi‐
atel yataq ualified specialis tworks hop. #
Consult aqualified specialis tworks hop immediatel y.
Left Curtai nAirbag
Service Required (exa m‐
ple) *T
he cor responding windo wcurtain airbag is malfunctioning. In addi‐
tion ,the 0075 warning lam ponthe instrument clus terl ights up. &
WARNING Risk of inju ryor fatal injur ydue toam alfunction
in thew indo wcurtain airbag
The windo wcurtain airbag might be triggered unin tentionally or
might no tbetriggered at al lintheeve nt of an accident. #
Have thew indo wcurtain airbag checkeda nd repaired
immediatel yataqualified specialis tworks hop. #
Consult aqualified specialis tworks hop immediatel y. Displ
aymessa gesa nd warning and indicator lamps 247

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
0075
Left Curtain Airbag Mal-
function: Service
Required (exa mp le) *T
he cor responding windo wcurtain airbag is malfunctioning. In addi‐
tion ,the 0075 warning lam ponthe instrument clus terl ights up. &
WARNING Risk of inju ryor fata linjur ydue toam alfunction
in thew indo wcurtain airbag
The windo wcurtain airbag might be triggered unin tentionally or
might no tbetriggered at al lintheeve nt of an accident. #
Have thew indo wcurtain airbag checkeda nd repaired
immediatel yataqualified specialis tworks hop. #
Consult aqualified specialis tworks hop immediatel y. Drivin
gsystems Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
120 km/h orMaximum
Speed 120 km/h *F
or cer tain countries only: them aximum permissible speed has
been exceeded. #
Driv emores lowly.
120 km/h Maximum
Spee dExceeded *F
or cer tain countries only: them aximum permissible speed has
been exceeded. #
Driv emores lowly.
00AD
Attent. Asst Inoperative *A
TTENTION ASSIS Thasfailed. #
Consult aqualified specialis tworks hop.
00AD
Attention Assist Inopera-
tive *A
TTENTION ASSIS Thasfailed. #
Consult aqualified specialis tworks hop.
00AD
Attent. Asst Take Break! *B
ased on cer tain criteria, ATTENTION ASSIS Thas de tected fatigue
or increasing lapse sinconcentration on thep artoft he driver.
Aw arning tone also sounds. #
If necessa ry,t ak eab reak.
On lon gjou rney s, take regular and timel ybreak st hat allo wyouto
re st properly.
Attent. Asst Take a
Break! *B
ased on cer tain criteria, ATTENTION ASSIS Thas de tected fatigue
or increasing lapse sinconcentration on thep artoft he driver.
Aw arning tone also sounds. #
If necessa ry,t ak eab reak.
On lon gjou rney s, take regular and timel ybreak st hat allo wyouto
re st properly. 248
Displaymessa gesa nd warning and indicator lamps

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
Active Distance Assist
---m ph *A
nactivatio nc ondition forA ctiv eDista nce Assi stDISTRONI Chas
no tb eenf ulfilled. #
Comply withthe activation conditions forA ctiv eDistan ce Assi st
DISTRONI C(/pa ge116).
Active Distance Assist
Off *A
ctiv eDista nce Assi stDISTRONI Chasbeen deacti vated
( / pag e116).
In thee vent of adeacti vatio nn otinitia tedbyt he driver ,awarning
to ne sounds as well.
Activ eDistanc eAssist
Inoperative *A
warning tone also sounds. ActiveD ista nce Assi stDISTRONI Cis
malfunctioning .Inaddition, BASm ayhave failed. #
Consult aqualified specialis tworks hop.
Active Distance Assist
and Limiter Inoperative *A
warning tone also sounds. ActiveD ista nce Assi stDISTRONI Cand
th el imiter ar emalfunctioning. #
Consult aqualified specialis tworks hop.
Act.D istance Assist Sus-
pended *Y
ou ar eaccelerating. ActiveD istan ce Assi stDISTRONI Cdoesn ot
inter vene fort he duration of thea cceleration process. #
Remo veyour foot from thea ccelerator pedal.
Ac tiveD istan ce Assi stDISTRONI Cwillbea ctivateda gain.
Active Distance Assist
Curr. Unavailable See
Oper. Manual *A
warning tone also sounds.
Ac tiveD ista nce Assi stDISTRONI Chasbeen switched of fand is
te mp orarily non-operational.
The following causes ar epossible:
R The function is impaired due toheavy rain or sno w.
R The radar sensor sy stem is temp orarily non-operational, e.g. due
to electromagnetic radiation close toTV orradio transmitting
st ations or other sources of radiation.
R The sy stem is outside theo perating temp eratur erange.
R Theo n-board electrica lsyst em voltag eist oo lo w.
If th ec auses mentioned abo veno longer apply ,the displa ymessage
will disappear and ActiveD istan ce Assi stDISTRONI Cwillbeo pera‐
tional again.
If th ed ispla ymessag edoes no tdisappear: #
Stop in accordance wit hthe tra ffic conditions. #
Secur ethe vehicle agains trolling away.
Active Brake Assist Sys-
tem Inoperative *A
ctiveBrake Assi stis una vailable due toam alfunction. #
Consult aqualified specialis tworks hop.
Active Brake Assist Cur-
rently Unavail. *A
ctiv eBrake Assi stistemp orarily non-operational.
The following causes ar epossible:
R The sensor sinthe front bumper ar edirty.
R The function is impaired due toheavy rain or sno w.
R The radar sensor sy stem is temp orarily non-operational, e.g. due
to electromagnetic radiation close toTV orradio transmitting
st ations or other sources of radiation. Displa
ymessages and warning and indicator lamps 249

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
R The sy stem is outside theo perating temp eratur erange.
R Theo n-board electrica lsyst em voltag eist oo lo w.
If th ec auses mentioned abo veno longer apply ,the displa ymessage
will disappear and ActiveB rake Assi stwill be operational again.
If th ed ispla ymessag edoes no tdisappear: #
Stop in accordance wit hthe tra ffic conditions. #
Secur ethe vehicle agains trolling away. #
Switc hoffthee ngine. #
Clean thes ensor sinthe front bumper (/ page184). #
Restar tt he engine.
Active Distance Assist
Now Available *A
ctiv eDista nce Assi stDISTRONI Cisoperationa laga in following
te mp orar ynon- availabilit y.Yo uc an no wswitch ActiveD ista nce
Assi stDISTRONI Conagain ( / page 117, 119).
Cruise Control ---mph *A
nactivatio nc ondition forc ruisec ontrol has no tbeen met.
Fo re xamp le,youa reaimin gtos tore as peed belo w20m ph
(30 km/h). #
If conditions permit, driv eataspeed greater than 20 mph
(30 km/h) and stor et he speed. #
Obser vethea ctivation conditions forc ruisec ontrol
(/ page115).
Cruise Control and Lim-
iter Inoperative *A
warning tone also sounds. Cruise control and thel imiter ar emal‐
functioning. #
Visit aq ualified specialis tworks hop.
Blind Spot Assist Inoper-
ative *B
lind Spo tAssis tism alfunctioning. #
Consult aqualified specialis tworks hop.
Blind Spot Assist Cur-
rently Unavail. See Oper-
ator's Manual *B
lind Spo tAssis tist emporarily non-operational.
The following causes ar epossible:
R Youh ave couple dupat railer.
R The senso rsinther ear bumper ar edirty.
R The function is impaired due toheavy rain or sno w.
R The radar sensor sy stem is temp oraril ynon-operational, e.g. due
to electromagnetic radiation close toTV orradio transmitting
st ations or other sources of radiation.
R The sy stem is outside theo perating temp eratur erange.
If th ec auses mentioned abo veno longer apply ,the displa ymessage
will disappear and Lane Keeping Assis twill be operational again.
If th ed ispla ymessag edoes no tdisappear: #
Stop in accordance wit hthe tra ffic conditions. #
Secur ethe vehicle agains trolling away. #
Switc hoffthee ngine. #
Clean thes ensor sintherear bumper (/ page184). #
Restar tt he engine. 250
Displa ymessages and warning and indicator lamps

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
Park Assist Canceled *A
nacoustic signal sounds as well. The activ eparkin gassis tance
sy stems ha vebeen canceled and ActiveP arking Assis twill automat‐
icall ybea borted. Youh ave touched thes teering wheel, fore xamp le,
or ha vedriven at tooh igh aspeed. #
Steer and brak emanuall y. #
Repeat thep arking procedur eifnecessar y.Compl ywitht he
deactivation conditions (/ page125).
Park Assist Inoperative *P
ARKTRONIC is malfunctioning or de fective. #
Comply withthe instructions and aids in "Function of
PA RKTRONIC"( /pag e122). #
Ifth ed ispla ymessag econtinues tobe displa yed, consult a
qu alified specialis tworks hop:
*A ctiv eParking Assis tisnotavailable or is malfunctioning. #
Swit chofft he ignition. #
Restar tt he engine.
If th ed ispla ymessag econtinues tobe displa yed, or if thed isplay
does no tshowt he 005D symbol: #
Consult aqualified specialis tworks hop.
Lane Keeping Assist
Inoperative *L
ane Keeping Assis tismalfunctioning. #
Consult aqualified specialis tworks hop.
Lane Keeping Assist Cur-
rently Unavail. See Oper.
Manual *L
ane Keeping Assis thas been switched of fand is temp orarily non-
operational.
The following causes ar epossible:
R The windshield is dirty in thec amera's field of vision.
R Visibility is impaired due toheavy rain, sno worfog.
R Lane markings ar eabsent foral ong period of time.
R The lane markings ar eworn, dar korcoveredbyd irtors now, for
ex ample.
If th ec auses mentioned abo veno longer apply ,the displa ymessage
will disappear and Lane Keeping Assis twill be operational again.
If th ed ispla ymessag edoes no tdisappear: #
Stop in accordance wit hthe tra ffic conditions. #
Secur ethe vehicle agains trolling away. #
Clean thew indshield. Engine
Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
003D *A
warning tone also sounds. Displa
ymessa gesa nd warning and indicator lamps 251

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
The batter yisnolonger being charge df or one of thef ollowing rea‐
sons:
R Faulty alternator
R Torn pol y-Vb elt
R Malfunction in thee lectronics #
Stop immediately in accordance wit hthe traf ficc onditions and
switc hoffthee ngine.
Do no tcontinue driving. If youd o,thee ngine ma yoverheat. #
Secur ethe vehicle agains trolling away. #
Consult aqualified specialis tworks hop.
00AC
Stop Vehicle Turn Eng.
Off *A
warning tone also sounds. The coolant is tooh ot. #
Stop immediately in accordance wit hthe traf ficc onditions and
switc hoffthee ngine. &
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 situa‐
tions ma yoccur:
R Youc oul dc om eintoc ontact wi thhotg ases.
R Youc oul dc om eintoc ontact wi thother hot, escaping oper‐
ating 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. &
WARNING Risk of scalding from ho tcoolant
If yo uo pen thec ap, youc oul dbes calded. #
Letthe mo torc ool down befor eopening thec ap. #
When opening thec ap, wear pr otectiv eglove sa nd saf ety
gl asses. #
Open thec ap slowl ytorelease pressure. #
Obser vethec oolant temp eratur edispla y(/pag e142). #
Wait until thee ngine has cooled down. #
Ensur ethat thea ir supply tother adiator is no tobstructed. #
Avoiding high engine loads, driv eontothe neares tqualified spe‐
cialis tworks hop. In doing so, ensur ethat thec oolant temp era‐
tur ed ispla yremain sbelo wt he letter H. 252
Displa ymessages and warning and indicator lamps

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
00AC
Coolant Too Hot: Stop
Vehicle Switc hEngine
Off *A
warning tone also sounds. The coolant is tooh ot. &
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 situa‐
tions ma yoccur:
R Youc oul dc om eintoc ontact wi thhotg ases.
R Youc oul dc om eintoc ontact wi thother hot, escaping oper‐
ating 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. &
WARNING Risk of scalding from ho tcoolant
If yo uo pen thec ap, youc oul dbes calded. #
Letthe mo torc ool down befor eopening thec ap. #
When opening thec ap, wear pr otectiv eglove sa nd saf ety
gl asses. #
Open thec ap slowl ytorelease pressure. #
Stop immediately in accordance wit hthe traf ficc onditions and
switc hoffthee ngine. #
Monitor thec oolant temp eratur edisplay 00AConthei nstrument
clus ter. #
Wait until thee ngine has cooled down. #
Ensur ethat thea ir supply tother adiator is no tobstructed. #
Avoiding high engine loads, driv eontothe neares tqualified spe‐
cialis tworks hop. In doing so, ensur ethat thec oolant temp era‐
tur ed ispla yremain sbelo wt he redm arking.
00AC *T
hefanm otorisd efective.
Ve hicles without steering-wheel buttons: #
Chec kthe coolant temp eratur e(/pag e142).
Ve hicles wit hsteering-wheel buttons: #
Chec kthe coolant temp eratur edisplay 00AConthei nstrument
clus ter.
If th ec oolant temp eratur eisbelowt he maximum value specified
belo w,youc an continue drivin gtothe neares tqualified specialist
wo rkshop.
Av oid 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 H. Displa
ymessages and warning and indicator lamps 253

Displa
ymessages
Possible causes/consequences and 0050 0050Solutions
0091
Check Coolant Level *T
he coolant le velist oo lo w.
* NO
TEEngine damag eduetoinsuf ficient coolant #
Avoid long journe yswit hinsuf ficient coolant. #
Addc oolant ,following then otes on coolant (/ page180).
If yo uf requ ently nee dtoadd coolant: #
Have thee ngine cooling sy stem checkedataq ualified specialist
wo rkshop.
00BD
Check Coolant Level See
Oper. Manual *T
he coolant le velist oo lo w.
* NO
TEEngine damag eduetoinsuf ficient coolant #
Avoid long journe yswit hinsuf ficient coolant. #
Addc oolant ,following then otes on coolant (/ page180).
If yo uf requ ently nee dtoadd coolant: #
Have thee ngine cooling sy stem checkedataq ualified specialist
wo rkshop.
00B2
Check Engine Oil Level
or Check Engine Oil At
Next Refueling *A
warning tone also sounds. The oi llev el in your vehicle has fallen to
th em inimum.
* NO
TEEngine damag ecaused bydriving wit hinsuf ficient
engine oil #
Avoid long journe yswit hinsuf ficient engine oil. #
Che cktheo il le velw hen next refueling, at thel atest
(/ page179). #
If necessa ry,a dd engin eoil (/ page179).
If engine oil frequently needs tobe topped up: #
Have thee ngine checkedataq ualified specialis tworks hop.
ManuallyC heck Oil Level *R
eminder tocheckt he oil le vel.
* NO
TEEngine damag ecaused bydriving wit hinsuf ficient
engine oil #
Avoid long journe yswit hinsuf ficient engine oil. #
Che cktheo il le velw hen next refueling, at thel atest
(/ page179). #
If necessa ry,a dd engin eoil (/ page179). #
Toconfir mthe oil le velc heck: press and hol dthe 0078 button.
00B2 Manually Check Oil Level *R
eminder tocheckt he oil le vel. 254
Displa ymessages and warning and indicator lamps