#
Immedia tely rinse su rfaces that com ein
con tact wi thDEF when filling wit hwater
or remo veDEF wi thad am pcloth and
col dw ater.
If DEF has alread ycrystallized, clean using a
spon geand col dwater. If
yo uo pen theD EFtank ,small amounts of
ammoni avapor ma ybereleased. Do no tinhale
an ya mmonia vapor that ma ybereleased. Fill the
DEF tank only in well-ventilated areas.
DEF consum ption and filling capacity
DEF consum ption
Lik efuel consum ption, DE Fconsum ption is highly
dependent upon driving stylea nd operating con‐
ditions. DEFc onsumption is usuall ywithin a
ra ng eof0a nd10%oft he fuel consum ption. If
necessar y,DEF mu stbe refilled in acco rdance
wit hthe instructions when ther efill messag eis
displa yedint he instrument clus ter.This ma yalso
be necessar ybetwe en thes cheduled mainte‐
nance.
To tal capacity of DEF tank Ve
hicl eT otal capacity
All model s5 .8gal(22 liter s) Exhau
stgasa ftertreatment
The vehicle mus tbeoperated wit hDEF if the
ex haus tgas af tertre atment sy stem is tofunction
cor rectl y.
If yo uo perat ethe vehicle without DEF or with
emissions-rele vant malfunctions ,the legal MOT
appr oval is in validated. The vehicle could be pro‐
hibited from publicr oad usebyan of ficia lordi‐
nance.
It ma ybei mprop eror punishable in some coun‐
tries tooperat eavehicle that uses no DE Forone
th at does no tcompl ywitht he specifications of
th ese operating instructions.
Engine management monitor sthe exhaus tgas
af te rtre atment component sfor compliance with
emiss ions la wsand regulations. If youa ttem ptto
operat ethe vehicle without DEF ,withd iluted DEF
or wit hadiffe re nt reducing agent ,this will be
de tected bythee ngine management sy stem.
Other emissions- releva nt malfunctions ,e.g.
me tering malfunctions or sensor er rors,a re also
de tected and log ged. The engin
emanagement sy stem subsequently
pr eve nts thee ngine being restar teda fter issuing
aw arning message.
Therefor eadd DE Ftank regular lyduring vehicle
operation or ,atthe latest, af terr eceiving thef irst
wa rning messag eviathei nstrument clus ter. Engine oil
Note
sone ngine oil
Obser vethen otes on operating fluids
(/ page247). *
NO
TEEngine damag ecaused byan
incor rect oil filter ,incor rect oil or addi‐
tives #
Do no tuse engine oil soroilfilter sother
th an those whic hmeetthe specifica‐
tions necessar yfor thep rescribed
service inter vals. #
Do no talter thee ngine oil or oil filter in
order toachie velonger chang einter vals
th an presc ribed. #
Do no tuse additives. #
Have thee ngine oil changed af tert he
prescribed inter vals. Mercedes-Benz
recommends having theo il
ch anged at aqualified specialis tworks hop.
Fu rther information on engine oil and oil filter:
R intheMBS pecification sfor operating fluidsat
http://be vo.mercedes-benz.com (b yentering
th ed esignation)
R ataq ualified specialis tworks hop Te
ch nica ldata 251
0024
Canada: Elect
ricp arkin gb rake
applied (red) (/ page283)
0024 Electric parkin
gbrake (yellow)
(/ page283)
00CC Po
we r-assis teds teering malfunction
(/ page289)
003D Elect
rical malfunction
(/ page 290)
0075 Re
stra int sy stem (/ page283)
00B9 Chec
kEngine (/ page290)
00D4 Fu
elreser vewit hfuel filler cap loca‐
tion indicator (/ page290)
00AC Coolant
tooh ot/cold (/ page290)
00BA Dis
tance warning (/ page289)
0028 Preglow
0077 Ti
re pressur emonitor Saf
etys ystems Wa
rning/indicator
lamp Po
ssible causes/consequences and 0050 0050Solutions
0024
and
0049
Elect ricp arkin gb rake
applied redi ndicator
lam p(USA) does no tlight
up
0024 Elect ricp arkin gb rake
applied redi ndicator
lam p(Canada) does not
light up
0024 Elect ricp arkin gb rake
malfunctionin gyellow
indicator lam plight sup Ve
hicles with electric parking brake: thee lectric parking brak ered
indicator lam pdoes no tlight up. The elect ricp arkin gb rake yello wi ndi‐
cator lam plight sup.
* Meanin gofthe indicator lamps:
R The redi ndicator lam pdoes no tlight up: thee lectric parking
brak ehas been released.
R The yello wi ndicator lam plight sup:thee lectric parking brak eis
malfunctioning. #
Obser vethem essages on them ultifunction displa y. #
Switc hthe ignition of fand bac kon. #
Ifth ef ault messag epersists ,consult aqualified specialis twork‐
shop. #
Park thev ehicle only on le velg round and secur eitagains trolling
aw ay ( /pag e143). Displ
aymessa gesa nd warning and indicator lamps 283
