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specialist workshop or toac ollection
pointf or used batteries.
Ifyo uh ave toconnect the12v olt batter y,con‐
ta ct aq ualified specialis tworks hop.
Compl ywiths afet yn otes and take protective
measures when handling batteries.
Risk of explosion
Fire, open flames and smokin gare
prohibite dwhen handling theb atter y.
Av oid creating spar ks.
Electrolyte or batteryacid is cor ro‐
sive. Avoid contact wit hskin, eyes or
clo thing. Wear suitable pr otective
clo thing, in particular glove s, an
apron and aface mask .Immediate ly
ri nse electrolyte or acid splashes off
wit hc lean water.Conta ctap hysician
if necessar y.
Weareyep rotection.
Ke ep children away.
Obser vethis Opera tor's Manual.
If yo udon otintendtou sethev ehicle overan
ex tende dperio doft ime:
RActivat estandb ymode ,or
RConnec tthe batter ytoabatterycharge r
appr ovedbyM ercedes-Benz, or
RConsult aqualified specialis tworks hop to
disconnec tthe battery
St arting assist ance andchargin gthe 12V
battery
Ve hicles with alithium-ion battery
#When chargingt he batter yand during start‐
ing assis tance, al ways use thej ump-s tart
connection point in thee ngine compartment.
* NO
TEDama getotheb atter yfromo ver‐
vo ltage
When chargingu singabatterycharge rw ith‐
out amaximu mcharging voltage, theb attery
or theo n-boar delectronics ma ybedamaged.
#Onlyuse batter ycharger switham axi‐
mum chargingv oltageof1 4.4V.
Allother vehicles
#When chargingt he batter yand during start‐
ing assis tance, al ways use thej ump-s tart
connection point in thee ngine compartment.
Breakdown assis tance 301
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*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
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It isrecommended that youh ave thet hawe d
batter ychec kedataq ualified specialis twork‐
shop.
All vehicles
* NO
TEDama gecaused bynumerouso r
ex tende dattem ptstos tart thee ngine
Nume rous or extende dattem ptstos tart the
engine ma ydamag ethe catalytic con verter
due tonon-combu sted fuel.
#Av oid numerous and extende dattem pts
to star tt he engine.
Obser vethef ollowing points during starting
assis tance and when chargingt he battery:
ROnlyuse undamaged jumper cables/charg‐
ing cables wit hanadequat ecross-section
and insulated term inal clamps.
RNon- insulated parts of thet erminal clamps
mus tnotcom eintoc ontact wi thother me tal
parts while thej umper cables/charging
cables ar econnected totheb atter yort he
jump-s tart connection point.
RThe jumper cables/charg ing cables mustnot
com eintoc ontac twitha nyparts whic hmay
mo vewhen thee ngine is running.
RAlw aysm akes uret hat neither youn orthe
batter yareelect rostaticall ycharged.
RKeep away from fire and open flames.
RDo no tlean overthe batter y.
RWhencharging: onlyuse batter ychar gers
te sted and appr ovedbyM ercedes-Benza nd
re ad theb atter ycharger's operating instruc‐
tions befor echarging theb atter y.
Obser vethea dditional following point sduring
st artin gassis tance:
RSt artin gassis tance ma yonly be pr ovided
using batteries wit hanominal voltag eof1 2
V.
RThe vehicles mus tnot to uch.
RGasoline engine: Onlyaccep tstartin ga ssis‐
ta nce if thee ngine and exhaus tsystema re
cold.
#Secur ethe vehicle byapplying thee lectric
parking brake.
#Au tomatic transmission: Shiftthet rans‐
mission toposition B.
#Makesuret hat thei gnition and all electrical
consumer sareswitched off.
#Open thee ngine hood.
#Slide co ver1 of positiv eterminal 2onthe
jump-s tarting connection point in thed irec‐
tion of thea rrow .
Breakdown assis tance 303
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Displaymessages
Possible causes/consequences and MSolutions
#Switchoffthei gnition and tur nitbacko n.
To appl y:
#Release and then apply thee lectric parking brak emanuall y.
To release:
#Re lease and then apply thee lectric parking brak emanuall y.
If th ee lectric parking brak ecannot be applied or ther ed F (USAonly) or !(Canada only) indicator lamp
continues toflash:
#Do no tcontinue drivin gunde rany circum stances. Consult aqualified specialis tworks hop.
#Wher enecessar y,also safeguar dthe par kedv ehicle agains trolling away.
The yellow ! indicator lam pislit and ther ed F (USAonly) or !(Canada only) indicator lam pflashes for
appr oximatel yten seconds af tert he electric parking brak ehas been applied or released. It then remains lit or goes
out. The electric parking brak eismalfunctioning.
If th eb attery charge leve list oo lo w:
#Chargetheb atter y.
To appl y:
#Switc hthe ignition off.
The electric parking brak eisapplied automaticall y.
Displaymessage sand warning/indicator lamps 363
Page 381 of 446
Displaymessages
Possible causes/consequences and MSolutions
?
*Thefanm otorisf aulty.
#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 w2 48 °F (120 °C).
#
See Operator's Manual *T
he batter yisnotbeing charge d.
* NO
TEPossible engine damag eifyou continue driving#Do no tcontin ue dr ivingunder an ycircum stances.
#Consult aqualified specialis tworks hop.
#Stop thev ehicle immediately ,paying attention toroad and traf ficc onditions ,and switc hoffthee ngine.
#Consult aqualified specialis tworks hop.
#
Start Engine See Opera-
tor's Manual *T
he engine is of fand theb atter ychar geleve list oo lo w.
#Switc hoffelectrica lconsumer sthat ar enotrequ ired.
#Leavethee ngine running foraf ewminutes, or driv efor alonger dis tance.
The batter yisbeing charge d.
Displa ymessages and warning/indicator lamps 37
9
Page 382 of 446
Displaymessages
Possible causes/consequences and MSolutions
#
Stop vehicle See Opera-
tor's Manual*T
he batter yisnolonger being charge da nd theb atter ychar geleve list oo lo w.
* NO
TEPossible engine damag eifyou continue driving#Do no tcontin uedrivingu nder an ycircum stances.
#Consult aqualified specialis tworks hop.
#Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions .Donot
continu edriving under an ycircums tances.
#Switc hoffthee ngine.
#Consult aqualified specialis tworks hop.
#
Stop Vehicle Leave Engine
Running *T
he batter ychar geleve list oo lo w.
#Pulloverand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions .Donot
continu edriving under an ycircums tances.
#St artt he engine.
#Wa it until thed ispla ymessag edisappear sbefor epulling away.
380
Displa ymessages and warning/indicator lamps
Page 391 of 446

Displaymessages
Possible causes/consequences and MSolutions
Stop Vehicle Leave Engine
Running Wait Transmission
Cooling *T
he transmission has overheated. Pulling away can be temp orarily impaired or no tpossible.
#Pull overand stop thev ehicle safely as soon as possible, paying attention toroad and traf ficc onditions .Donot
continu edriving under an ycircums tances.
#St artt he engine.
#Wa it until thed ispla ymessag edisappear sbefor epulling away.
Auxiliar yBattery Malfunc-
tion *T
he auxiliary batteryfor thet ransmission is no longer being charge d.
#Consult aqualified specialis tworks hop.
#Un tilthen, manuall ysetthet ransmission toposition jbefor eyou switc hoffthee ngine.
#Befor eleaving thev ehicle, apply thee lectric parking brake.
Ð
Steering Malfunction Drive
Carefully Service Required *T
he po werassi stanc eoft hesteering is malfunctioning. Youm ayneed touse mor eforce tosteer.
#Driv eonc arefull y.
#Consult aqualified specialis tworks hop.
Displa ymessages and warning/indicator lamps 389