Page 462 of 585

Model
Replacement
amount
E3 50 d4MATIC
E3 50 d4MATIC All-
Te rrain 8.
0l
All other models 6.3 lNote
sonb rake fluid Obser
vethen otes on operating fluids
(→ pag e452). &
WARNING Risk of an accident du eto
va pour poc kets form ing in theb rake sys‐
tem
The brak efluid cons tantl ya bsorbs moi sture
from thea ir.T his lo werstheb oiling point of
th eb rake fluid. If theb oiling point is tool ow,
va pour poc kets ma yformint he brak esys‐
te mw hen theb rake sa reapplied hard.
This impair sthe braking ef fect. #
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:
R intheM ercedes-Benz Specification sfor
Operating Fluids at http://be vo.mercedes-
benz.com
R ataq ualified specialis tworks hop Coolant
Note
sonc oolant
Obser vethen otes on service products
(→ pag e452). &
WARNING Risk offire ‑a nd inju ryfrom
antifreeze
If antifreeze comes int ocontact wit hhot
component parts in thee ngine compart‐
ment ,itmayignite. #
Allo wthe engine tocool down before
yo ut op up thea ntifre eze. #
Mak esuret hat no antifreeze spills out
next tothef iller opening. #
Thoroughl yclean thea ntifre eze from
componen tparts befor estartin gt he
ve hicle. *
NO
TEDama gecaused byincor rect cool‐
ant #
Onlyadd coolant that has been pre‐
mixed wit hthe requ ired antifreeze pro‐
te ction.
Fu rther information on coolant:
R IntheM ercedes-Benz Specification sfor
Operating Fluids 310.1, e.g. online at
http://be vo.mercedes-benz.com.
R Ataq ualified specialis tworks hop. Te
ch nica ldata 459
Page 463 of 585

*
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:
R am inimum of 50% (antifreeze pr otection
down toappr oximatel y-37 °C).
R am aximum of 55% (antifreeze pr otection
down to-45 °C). Note
sonw indscreen washer fluid Obser
vethen otes on operating fluids
(→ pag e452). &
WARNING ‑Riskoff irea nd injur ydue to
windscreen washer concentrate
Wi ndsc reen washer concentrat eishighly
fl ammable. It coul dignit eifitc omes into
con tact wi thhote ngine component parts or
th ee xhau stsystem. #
Mak esuret hat no windscreen washer
concentrat espills out next tothef iller
opening. *
NO
TEDama getothee xterio rlighting
due tounsuitable windsc reen washer
fl uid Uns
uitable windsc reen washer fluids may
damag ethe plastic sur face of thee xterior
lighting. #
Only use windsc reen washer fluids
whic harealso suitable foru se on plas‐ tic sur
faces, e.g. MB SummerFi torMB
Wi nterFit. *
NO
TEBlocked spr aynozzles caused by
mixing windscreen washer fluids #
Do no tmix MB SummerFit and MB Win‐
te rFit wit hother windscreen washer flu‐
ids. Do no
tuse distilled or de-ionised waterast hefill
le ve ls ensor ma ybetriggered er roneously.
Re commended windscreen washer fluid:
R Abo vefreezing point :e.g. MB SummerFit
R Belo wfreezing point :e.g. MB WinterFit
Fo rthe cor rect mixing ratio refertot he informa‐
tion on thea ntifre eze conta iner.
Mix thew ashe rfluid wit hthe windscreen washer
fl uid all year round. 460
Tech nica ldata
Page 479 of 585
Displa
ymessages
Possible causes/consequences and M
MSolutions
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R soiling of thes ensors
R heavy rain
R extende dcountr ydriving wi thout other traf fic, e.g. in thed esert
Driving sy stems and driving saf etys ystems ma ybem alfunctioning or temp orarily una vailable.
Onc ethe cause of thep roblem is no longer present ,driving sy stems and driving saf etys ystems ar eavailable again.
If th ed ispla ymessag edoes no tdisappear: #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Clea nallsenso rs . #
Restar tt he engine. 476
Displaymessa gesa nd warning/indicator lamps
Page 480 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions
Radar sensors dirty See
Owner's Manual *T
heradar sensor sy stem is malfunctioning. Possible causes:
R soiling of thes ensors
R heavy rain
R extende dcountr ydriving wi thout moving traf fic, e.g. in thed esert
Driving sy stems and driving saf etys ystems ma ybem alfunctioning or temp orarily una vailable.
Onc ethe cause of thep roblem is no longer present ,driving sy stems and driving saf etys ystems ar eavailable again.
If th ed ispla ymessag edoes no tdisappear: #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Clea nallsenso rs . #
Restar tt he engine.
Active Brake Assist Func-
tions currently limited See
Owner's Manual *
Ve hicles with theD riving Assistance Package: ActiveB rake Assi stwit hc ross-traf ficf unction, Evasi veSteering
Assis torP RE‑SAFE ®
PLUS ar etemporarily una vailable or onl ypartiall yavailable.
Ve hicles without theD riving Assistance pa ckage: ActiveB rake Assi stistemp orarily una vailable.
The ambien tcondition sareoutside thes ystem border s. #
Driv eon.
As soon as thea mbient conditions ar ewithin thes ystem borders, thes ystemw ill become available again. #
Ifth ed ispla ymessag edoes no tdisappear ,stopt he vehicle while paying attention toroad and traf ficc onditions
and restar tt he engine. Displa
ymessages and warning/indicator lamps 477
Page 490 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions
Active Lane Keeping Assist
Camera view restricted
See Owner's Manual *
Ve hicles without Activ eS teering Assis t:thec amer aviewisr estricted.
Po ssible causes:
R dirtont he windscreen in thec amera's field of vision
R heavy rain, sno worfog
Driv ings ystems and driving saf etys yst ems ma ybemalfunctioning or temp orarily una vailable.
Onc ethe cause of thep roblem is no longer present ,driving sy stems and driving saf etys yst ems ar eavailable again.
If th ed ispla ymessag edoes no tdisappear: #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Clea nthe windscreen.
Blind Spot Assist currently
unavailabl eSee Owner's
Manual *B
lind Spo tAssis tist emporaril yunavailable.
The sy stem border shave been reached (→ page248). #
Driv eon.
Once thec ause of thep roblem is no longer present ,the sy stem will be available again.
or #
Ifth ed ispla ymessag edoes no tdisappear ,stopt he vehicle while paying attention toroad and traf ficc onditions
and restar tt he engine. #
If necessar y,clean ther ear bumper .Ifthe bumper is extreme lydirty ,the sensor sinthe bumper ma ybemal‐
functioning. Displa
ymessages and warning/indicator lamps 487
Page 491 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctiv eBlind Spo tAssististemp orarily una vailable.
The sy stem border shave been reached (→ page248). #
Driv eon.
Once thec ause of thep roblem is no longer present ,the sy stem will be available again. #
Ifth ed ispla ymessag edoes no tdisappear ,stopt he vehicle while paying attention toroad and traf ficc onditions
and restar tt he engine.
Blind Spot Assist not availa-
ble when towing atrailer
See Owner's Manual *W
hen youe stablish thee lectrical connection tothet railer ,Blind Spo tAssis tisu navailable. #
Press thel eft-hand side of touc hc ontrol an dacknowl edgethe displa ymessage.
Active Blind Spot Assist
not available when towing
at railer See Owner's Man-
ual *W
hen youe stablish thee lectrical connection tothet railer ,Activ eBlind Spo tAssistis una vailable. #
Press thel eft-hand side of touc hc ontrol an dacknowl edgethe displa ymessage.
Blind Spot Assist inopera-
tive *B
lind Spo tAssis tism alfunctioning. #
Consult aqualified specialis tworks hop.
Active Blind Spot Assist
inoperative *A
ctiveBlind Spo tAssistis malfunctioning. #
Consult aqualified specialis tworks hop. 488
Displa ymessages and warning/indicator lamps
Page 492 of 585

Displa
ymessages
Possible causes/consequences and M
MSolutions
Active Parking Assist and
PARKTRONIC inoperative
See Owner's Manual *A
ctiveParking Assis tand Parking Assis tPARKTRONIC ar emalfunctioning. #
Stop thev ehicle, paying attention toroad and traf ficc onditions ,and restar tt he engine. #
Ifth ed ispla ymessag econtinues tobe displa yed, consult aqualified specialis tworks hop.
Traffic Sign Assist currently
unavailable See Owner's
Manual *T
raffic Sign Assis tistemporaril yunavailable. #
Driv eon.
Onc ethe cause of thep roblem is no longer present ,the sy stem will be available again.
Traffic Sig nAssist Camera
view restricted See Own-
er' sM anual *T
he camer aviewisr estricted. Possible causes:
R dirtont he windscreen in thec amera's field of vision
R heavy rain, sno worfog
Driv ings ystems and driving saf etys yst ems ma ybemalfunctioning or temp orarily una vailable.
Onc ethe cause of thep roblem is no longer present ,driving sy stems and driving saf etys yst ems will become availa‐
ble again.
If th ed ispla ymessag edoes no tdisappear: #
Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions. #
Clea nthe windscreen.
Traffic Sign Assist inopera-
tive *T
raffic Sign Assis tismalfunctioning. #
Consult aqualified specialis tworks hop. Displa
ymessages and warning/indicator lamps 489
Page 496 of 585

Engine
Displa
ymessages
Possible causes/consequences and M
MSolutions
Top up coolant See Own-
er’s Manual *T
he coolant le velist oo lo w.
* NO
TEEngine dama gedue toinsuf ficient coolant #
Avoid long journe yswit hinsuf ficient coolant. #
Addc oolant .
?
Coolant Stop vehicle
Switc hengin eoff *T
he coolant is tooh ot. #
Stop thev ehicle immediately ,paying attention toroad and traf ficc onditions ,and switc hoffthee ngine. &
WARNING Danger of bu rnsw hen opening theb onnet
If yo uo pen thee ngine bonn etwhen thee ngine has overheated or during afireint he engine compartment, you
could come int ocontact wi thhotg ases or other escaping operating fluids. #
Befor eopening theb onnet ,allowt he engine tocool down. #
Inthee vent of afireint he engine compartment, keep thee ngine bonn etclosed and cal lthe fire service. #
Wait 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 w1 20 °C. Displ
aymessa gesa nd warning/indicator lamps 493