Page 280 of 446

Batterydisconnection periods
The AS SYST PLUS service inter vald isplay
can onl ycalculat ethe serviced uedate when
th eb attery is connected.
#Notedown thes ervice due dat edispla yedi n
th ei nstrument displa ybefor edisconnecting
th eb atter y(
→page277).
Engin ecom partment
Activ eh ood( pedestrian pr otection)
Operation of thea ctiv ehood (pedestrian pro‐
te ction)
In cer tain accident situations ,the risk of injury
to pedestrians can be reduced bythea ctuation
of thea ctiv ehood. The rear area of thee ngine
hood is raised byappr oximatel y85m m.
Fo rthe driv etotheworkshop, rese tthe trig‐
ge reda ctiv ehood yourself.Ift he activehood
has been triggered, pedestrian pr otection may
be limited.
Aq ualified specialis tworks hop mus tre-ins tate
th ef ull functionality of thea ctiv ehood. The activ
ehood is no tavailable in all countries.
Re setting thea ctiv ehood
&
WARNING Risk of burn sfromh otcom‐
ponent parts in thee ngine compartment
Cer tain component parts in thee ngine com‐
partmen tcan be very hot, e.g. thee ngine,
th ec ooler and parts of thee xhaust system.
#Le tthe engine cool down and only
to uc ht he component parts described
as follo ws .
#With your handf lat, push down activ ehood
1 inthea reaa round theh inges on bo th
sides (ar rows).
The engine hood mus tengag einp osition.
#Ifth ea ctiv ehood can be raised slightly at
th er ear in thea reaoft he hinges, repeat the
st ep until it engages cor rectl yinp osition.
Opening/closing the engine hood
&
WARNING Risk of accident if thee ngine
hood is unlatched while driving
An unloc kede ngin ehood ma yopen up when
th ev ehicle is in motion and bloc kyour vie w.
#Neveru nlatc hthe engine hood while
driving.
#Befor eevery trip, ensur ethat the
engine hood is latched.
27 8
Maintenance and care
Page 282 of 446
&WARNING Risk of injury from usingthe
windshield wiper swhile thee ngine hood
is open
When thee ngine hood is open and thew ind‐
shield wiper saresetinm otion ,you can be
trappe dbythe wiper linkage.
#Alw ayss witc hoffthew indshield wipers
and ignition befor eopening thee ngine
hood.
#To open: pull lever1 torelease thee ngine
hood.#Push hood catch 1upwards and lif tthe
engine hood appr oximatel y15in( 40 cm).
#Toclose: lowe rthe engine hood and le titfall
wit hal ittle momentum from aheight of
appr oximatel y8in (20 cm).
#Ifth ee ngine hood can still be lif teds lightl y,
open thee ngine hood again and close it with
al ittle mor eforce until it engages cor rectly.
280
Maintenance and care
Page 291 of 446

Information on cleaning and careAvoiding vehicl edamage
Ta ilpipes
Clean withcleaning agent srecommende dbyMercedes-Benz,
particular lyin thew inter and af terw ashing thev ehicle. Use acid-free cleaning agents.
Tr aile rhitch
RRemo verust on theb all, e.g. wit hawireb rush.
RRe mo vedirtw ithal int-free clo th.
RAf terc leaning, oil or grease theb all head lightl y.
RObservethec leanin ginstruction sinthe operating instruc‐
tions of thet railer hitc hmanufacturer. Do no
tclean theb all nec kwiths olvent sorap owerwasher.
Note sonc areoft he interior
&
WARNING Risk of injury from plastic
parts breakin goffafte rt he use of sol‐
ve nt-based car eprodu cts
Ca reand cleanin gproducts con tainin gsol‐
ve nts can cause surf aces inthec ockpit to
become porous.
When thea irbags ar edeplo yed, plastic parts
ma ybreak away.
#Do no tuse anyc areorc leaning prod‐
ucts containing sol vents toclean the
cockpit.
& WARNING Risk of injury or deathfrom
bleached seat belts
Bleaching or dyeing seat belts can se verely
we aken them.
This can, fore xamp le, caus eseat beltst o
te ar or fail in an accident.
#Ne verb lea ch or dy eseat belts.
Maintenance and care 289
Page 304 of 446

*NO
TEDamaging theb atter ythrough
ove rvoltage
When chargingu singabatterycharge rw ith‐
out amaximu mcharging voltage, theb attery
or thev ehicle electronics ma ybedamaged.
#Onlyuse batter ycharger switham axi‐
mum chargingv oltageof1 4.8V.
&
WARNING Risk ofexplosion from hydro‐
ge ng as igniting
Ab atter ygene ratesh ydrogen gasd uring the
ch argingp rocess. If ther eisas hortcircuit or
spar ksstar ttof orm, ther eisad anger of the
hy drogen gasigniting.
#Mak esuret hat thep ositiv eterminal of
th ec onnected batter ydoes no tcome
int oc onta ct wi thvehicle parts.
#Ne verp lace me talo bject sort ools on a
batter y.
#When connectin gand disconnectin gthe
batter y,yo um usto bserv ethe descri‐
bed order fort he batter yclamps.
#When giving startin gassis tance, al ways
mak esuret hat youo nly connec tbat‐
te ry term inals wit hidentical polarity.
#During startin gassis tance, youm ust
observ ethe described order forc on‐
necting and disconnecting thej umper
cables.
#Do no tconnect or disconnect theb at‐
te ry cla mp sw hile thee ngine is running.
&
WARNING Risk ofexplosion during
ch argingp rocess and startin gassis tance
During thec harging process and starting
assis tance, theb atter ymayrelease an explo‐
siv eg as mixture.
#Avoid fire ,o pen flames,c reating spar ks
and smoking.
#Mak esuret hat ther eiss ufficient venti‐
latio ndurin gthe chargingp rocess and
during startin gassis tance.
#Do no tlea no verab atter y.
Ifth ei ndicator/warning lamps in thei nstrument
clus terdon otlight up at lo wtemperatures, it is
ve ry likel ythat thed ischar gedb atter yhas fro‐
zen.
& WARNING Risk ofexplosion from afro‐
zen battery
Ad ischar gedb atter ymayfreeze at temp era‐
tures slightl yabove or belo wfreezing point.
During startin gassis tance or batter ycharg‐
ing, batter ygas ma ybereleased.
#Alwayst hawaf roze nb atte ryout firs t
befor echarging it or per form ing start‐
ing assis tance.
* NO
TEShor tening thes ervice lif eofthe
batter ybycharging theb atter yatl ow
te mp eratures
Chargin gthe batter yatveryl ow temp era‐
tures ma yshor tent he service lif eofthe bat‐
te ry and ha vean egativ eeffect on starting.
#Do no tcharg ethe batter yatveryl ow
te mp eratures.
302
Breakdown assis tance
Page 316 of 446

&WARNING Risk of accident caused by
re peated drop in tir epressure
If th et irep ressur edrops repeatedl y,the
wheel, valveort irem aybe damaged.
Insuf ficient tir epressur ecan cause thet ires
to bur st.
#Inspect thet iref or signs of fore ign
objects.
#Chec kwhether thew heel or valveh as a
leak.
#If yo ua reunab leto rectify thed amage,
conta ctaq ualified specialis tworks hop.
Yo uc an find informatio nontirep ressur efor the
ve hicle's factor y-ins talled tires on thef ollowing
labels:
RTi re and Loading Info rmatio nplacar dont he
B‑pi llarofyour vehicle (→pag e319).
RTire pressur etable on thei nside of thef uel
fi ller flap (→pag e314).
Obse rvet he maximum tir epressure
(
→pag e325). Use
asuitable pressur egaug etoc heckthe tire
pressure. The outer appearance of atired oes
no tp ermit an yreliable conclusion about thet ire
pressure.
Ve hicles with atirep ressur emonitoring sys‐
te m: Youc an also checkt he tir epressur eusing
th eo n-boar dcomputer.
Onl ycorrect tir epressur ewhent he tires are
cold. Conditions forc old tires:
RThe vehicle has been par kedw itht he tires
out of direct sunlight foratl east thre eh ours.
RThe vehicle has tr aveled less than 1m ile
(1.6 km).
Ar ise in thet iret emperatur eof18°F( 10°C)
increases thet irep ressur ebya pprox.10k Pa
(0. 1b ar/1.5 psi). Take this int oaccount when
ch ecking thet irep ressur eofw armt ires.
The tire pressure re commendedfori ncreased
load/speedint he tirepressur etable can af fect
th er ide comfort.
&
WARNING Risk of accident from unsuita‐
blea ccessori es onthet irev alves
If yo um ountunsuitable accessories onto tire
va lves, thet irev alves ma ybeoverloaded and
malfunction, whic hcan cause tir epressure
loss. Tire pressur emonitoring sy stems for
re trofitting will cause thet irev alvetor emain
open .This can als oresult in tir epressure
loss.
#Onl yscrew standar dvalvec aps or valve
cap sspecifically appr ovedby
Mercedes-Benzf oryour vehicle onto
th et irev alve.
Tire pressur etable
The tir epressur etable is on thei nside of the
fuel filler flap.
% The dat ashown in thei mages is example
data.
31 4
Wheels and tires
Page 355 of 446

Safetys ystems
Displa ymessages
Possible causes/consequences and MSolutions
!
÷
Currently Unavailable See
Operator'sManual *
ABS and ESP
®aret emporaril yunavailable.
Other drivinga nd drivingsafet ys ystems ma yalso be malfunctioning.
&
WARNING Risk of skidding if ABS and ESP®arem alfunctioning
If ABS and ESP
®ar em alfunctioning ,the wheels could loc kwhen braking and ESP®cann otcar ryout vehicle
st abilization.
The steering capability and braking characteristic sarethus se verely impaired .The brakin gdista nce in an emer‐
ge ncy braking situatio ncan increase. In addition, other driving saf etys ystems ar eswitched off.
#Driv eonc arefull y.
#Have ABS and ESP®checkedi mmediately at aqualified specialis tworks hop.
#Carefully driv eonasuitablestre tchofr oad, making slight steering mo vements at aspeed abo ve19 mp h
(30 km/h).
#If th ed ispla ymessag edoes no tdisappear ,consult aqualified specialis tworks hop immediately .Drive carefully.
Displa ymessages and warning/indicator lamps 353
Page 356 of 446
Displaymessages
Possible causes/consequences and MSolutions
÷
Currently Unavailable See
Operator'sManual *
ESP
®is temp orarily una vailable.
Other drivinga nd drivingsafet ys yst ems ma yalso be malfunctioning.
&
WARNING Risk of skidding if ESP is malfunctioning®
If ESP®is malfunctioning ,ESP®canno tcarry out vehicle stabilization. In addition,o ther driving saf etys ystems
ar es witched off.
#Driv eonc arefull y.
#Have ESP®checkedataq ualified specialis tworks hop.
#Carefully driv eonasuitablestre tchofr oad, making slight steering mo vements at aspeed abo ve19 mp h
(30 km/h).
#If th ed ispla ymessag edoes no tdisappear ,consult aqualified specialis tworks hop immediately .Drive carefully.
354
Displa ymessages and warning/indicator lamps
Page 367 of 446
Displaymessages
Possible causes/consequences and MSolutions
6
SRS Malfunction Service
Required*T
herestra int sy stem is malfunctioning (
→pag e31).
&
WARNING Risk of injury orfata linjur ydue toam alfunctio nintherestra int sy stem
If th er estraint sy stem is malfunctioning, restra int sy stem components ma ybetriggered unintentionall yor
might no tbetriggered at all in thee vent of an accident. Thi smayaffect theE mer gency Tensioning Device or
airbag, fore xamp le.
#Have ther estraint sy stem checkeda nd repaired immediately at aqualified specialis tworks hop.
Re cognizing arestraint sy stem malfunction
RThe 6 restra int sy stem warning lam pdoes no tlight up when thei gnition is switched on.
RThe 6 restra int sy stem warning lam plightsupc ontinuousl yorrepeatedly during ajourne y.
#Visit aq ualified specialis tworks hop immediatel y.
Displaymessage sand warning/indicator lamps 365