2021 MERCEDES-BENZ METRIS cooling

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

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