Warning/
indic ator
lamp 00510051
Sign altype
Poss iblecause s/cons equen cesand 0050 0050
Sol utions 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning.
The coola ntleve lis too low.
If the coola ntleve lis correct, theairflowtothe engine radiator may beblocked
or the electric engineradiator fanmay bedefective .
The coola ntistoo hotand theengine isno longer being coole dsuffi ciently .
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Pul lover andstop thevehicl esafel yand switch offthe engine, paying atten-
tion toroad andtraffic conditions.
X Secure thevehicl eaga inst rolling awa y(Y pag e145).
X Leave thevehicl eand keep asafe dista ncefrom thevehicl euntil theengine
has coole ddow n.
X Che ckthe coola ntleve land add coola nt,obser vingthewarni ngnotes
(Y pag e277) .
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem
checked.
X Make surethattheairsup plytothe engine radiator isnot blocked ,e.g. by
snow, slush orice.
X Do not start theengine againuntil thecoola nttempera tureisbel ow 248 ‡
(120 †).Otherwi se,the engine couldbe dama ged.
X Drive tothe neares tqua lified speci alist worksho p.
X Avoid heavyloa dson the engine asyou doso, e.g. drivinginmountai nouster-
rain andstop-and-go traffic. 00AC
0051
The redcoola ntwar ning lamp comes onwhi lethe engine isrunning. Awarn-
ing tone alsosound s.
The coola nttempera turehasexceede d248 ‡(120 †).The airflowtothe
engine radiator may beblocked orthe coola ntleve lmay betoo low.
G WARNING
The engine isnot being coole dsuffi ciently andmay bedama ged.
Do not drive when yourengine isoverhe ated.Thiscancaus esome fluidswhi ch
may have leaked into theengine compartment tocatch fire.
Steam fromtheoverhe atedengine canalsocaus eserio usburns whichcan
occur justbyopeni ngthe hood.
There isarisk ofinjury .
X Observe theadditiona ldisp laymessa gesinthe multi function display.
X Pul lover andstop thevehicl esafel yand switch offthe engine, paying atten-
tion toroad andtraffic conditions.
X Secure thevehicl eaga inst rolling awa y(Y pag e145) .
X Leave thevehicl eand keep asafe dista ncefrom thevehicl euntil theengine
has coole ddow n.
X Che ckthe coola ntleve land add coola nt,obser vingthewarni ngnotes
(Y pag e277).
X Ifyou have toadd coola ntfrequ ently, havetheengine coolingsystem
checked. 240
Warning
andindic atorlamps inthe instrum entclusterOn-bo ardcomput erand displays
Exam
ple: eng ineoilcap
X Tu rn cap 0043cou nter-c lockwi seand remove
it.
X Add engineoil.
If the oille vel isat or below the MIN mark
on the oildi ps tick, add1.1 USqt(1.0 liter)
of eng ineoil.
X Re place cap 0043onthe fillerneck andturn
clo ckwi se.
Ensu retha tthe cap locks into place
sec urely.
X Ch eck theoille vel again wi th the oildi ps tick
(Y page 275 ).
Fur therinfo rma tionon eng ineoil
(Y page 338 ). Ch
eckin gand addi ngoth erservi ce
produ cts
Ch eckin gco olant leve l G
WA
RNING
The cooling system ispre ssu rize d,partic u-
la rly when the moto ris wa rm. Ifyo uop en
the cap,yo ucou ldbe sca lded ifhot coolant
sp rays out.The reisaris kof inju ry.
Let the enginecoo ldo wn befor eyo uop en
the cap.We arpro tecti veglove sand protec-
tive eyew earwh en openi ng. Open the cap
sl ow lyto release pre ssu re.
! The
coolant level mustonl ybe che cked
and correcte dwh en the enginehascoo led
do wn (coolant temp eratureund er104 ‡
(40 †).Ch ecki ngthe coolant level when the
coo lant temp eratureis ove r104 ‡(40 †)
can lead todama getothe engineorthe
eng inecoo ling system . X
Pa rk the vehicleon alevel surfa ce.
Onl yche ckthe coolant level when the vehi-
cle ison alevel surfa ce and theenginehas
coo led do wn.
X Tu rn the Sma rtKeyto positio n0048 inthe igni-
tio nlock (Ypage 125 ).
X Ch eck thecoolant temp eraturedisp layin
the instrument cluster .
The coolant temp eraturemu stbe below
104 ‡(40 †).
X Tu rn the Sma rtKeyto positio n005A
(Y page 125 )in the igniti onlock .
X Slo wlytur ncap 0043cou nter-c lockwi seand to
rel ieve exce sspre ssu re.
X Tu rn cap 0043furthe rcou nter-c lockwi seand
rem ove it.
If the coolant isat the level ofma rker bar
0087 inthe fillerneck when cold,the reis
eno ughcoo lant incoo lant exp ansion
tank 0044.
X Ifnece ssary,ad dcoo lant tha tha sbe en tes-
ted and appro ved byMe rced es-Benz.
X Re place cap 0043and turnit clo ckwi seasfar
as itwi llgo .
For furthe rinfo rma tionon coo lant, see
(Y page 339 ).
Win dshi eld wa she rsys tem G
WA
RNING
Ce rta incomp onents inthe enginecomp art-
ment, such asthe engine,ra diato rand parts
of the exhaust system ,can become very
hot. Workin gin the enginecomp artment
po ses aris kof inju ry.
Wh ere possi ble, letthe enginecoo ldo wn
and touchonl ythe comp onents descri bedin
the followi ng. En
gine compartmen t
277Mai ntenan ceand care Z
