2018 MERCEDES-BENZ E-CLASS SEDAN engine overheat

#Have theb rake fluid rene we datt he
specified inter vals.
Ha ve theb rake fluid regularly changed at aquali‐
fi ed specialis tworks hop.
Onl yuse brak efluid appr ovedbyM ercedes-Benz
according toMB-F reigabe or MB-Appr oval 33 1.0.
Fu rther information on brak efluid:
RintheM ercedes-Benz Specification sfor
Operating Fluids at http://be vo.mercedes-
benz.com
Rat aq ualified specialis tworks hop
Coolant
Note sonc oolant
Obser vethen otes on operating fluids
(
→pag e388).
&
WARNING ‑Riskoff irea nd injur yfrom
antifreeze
If antifreezec omes intocontact wit hhot
component parts in thee ngine compart‐
ment ,itmayignite.
#Allo wthe engine tocool down before
adding antifreeze.
#Make surethat no antifreeze spills out
next tothef iller opening.
#Thoroughl yclean of fany antifreeze
from component parts befor estarti ng
th ev ehicle.
* NO
TEDama gecaused byincor rect cool‐
ant
#Onl yadd coolant that has been pre‐
mixed wit hthe requ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
RIn theM ercedes-Benz Specification sfor
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
RAt aq ualified specialis tworks hop.
* NO
TEOverheating at high outsid etem‐
peratures
If an inappropriat ecoolant is used, the
engine cooling sy stem is no tsufficientl ypro‐
te cted agains toverheating and cor rosion at
high outside temp eratures.
#Alw aysu se coolant appr ovedby
Mercedes-Benz.
#Obser vethei nstruction sinthe
Mercedes-BenzS pecificationsforO per‐
ating Fluids 310.1.
Ha ve thec oolant regularly replaced at aqualified
specialis tworks hop.
The proportion of cor rosion inhibitor/antifreeze
concentrat einthe engine cooling sy stem should
be:
Ram inimum of 50% (antifreeze pr otection
down toappr oximatel y-35 °F (-3 7°C)).
Ram aximum of 55% (antifreeze pr otection
down to-49 °F (-45 °C)).
392
Tech nica ldata

Engine
Displaymessages
Possible causes/consequences and MSolutions
&KHFN &RRODQW /HYHO 6HH
2SHUDWRU
V0DQXDO *T
he coolant le velist oo lo w.
* NO
TEEngine damage duetoinsuf ficient coolant
#Av oid long journe yswit hinsuf ficient coolant.
#Ad dc oolant.
?
&RRODQW 7RR +RW 6WRS 9HKL
FOH 7XUQ (QJLQH 2II *T
he coolant is tooh ot.
#Pull overand stop thev ehicle safely and switc hoffthee ngine, paying attention toroad and traf ficc onditions.
&
WARNING Danger of burn swhen opening theh ood
If yo uo pen theh ood when thee ngine has overheated or during afireint he engine compartment, youc ould
come int ocontact wit hhotgases or other escaping operating fluids.
#Befor eopening theh ood, allo wthe engine tocool down.
#Inthee vent of afireint he engine compartment, keep theh ood closed and call thef ires ervice.
#Wa it until thee ngine has cooled down.
#Mak esuret hat thea ir supply tother adiator is no tobstructed.
#Avoiding high loads on thee ngine, driv eontothe neares tqualified specialis tworks hop. In doing so, ensur ethat
th ec oolant temp eratur edispla yremain sbelo wt he reda rea.
422
Displa ymessages and warning/indicator lamps

Warning/indicator lamp
Possible causes/consequences and MSolutions
?
Coolantwarning lamp The
redc oolant warning lam pislit while thee ngine is running.
Po ssible causes are:RThe temp eratur esensor is malfunctioning
RCoolant le veltoo low
RThe air suppl ytotheradiator is obstructed
RThe radiator fani sd efecti ve
If th er eisana dditional warning tone, thec oolant temp eratur ehasexc eeded them aximum permissible temp erature.
&
WARNING Danger of burn swhen opening theh ood
If yo uo pen theh ood when thee ngine has overheated or during afireint he engine compartment, youc ould come
int oc ontact wit hh otgases or other escaping operating fluids.
#Befor eopening theh ood, allo wthe engine tocool down.
#Inthee vent of afireint he engine compartment, keep theh ood closed and call thef ires ervice.
#Pull overand stop thev ehicle safely and switc hoffthee ngine, paying attention toroad and traf ficc onditions .Do
no tc ontinu edriving under an ycircums tances.
#Obser vethem essages in them ultifunction displa y.
If th ec oolant temp eratur edispla yisatt he lowerend of thet emperatur escale:
#Consult aqualified specialis tworks hop.
454
Displa ymessages and warning/indicator lamps