Benz. These batteries provide inc reased impact
pr otection topreve ntvehicle occupants from
suf fering aci dburns should theb atter ybed am‐
aged in thee vent of an accident.
Al lv ehicles exceptv ehicles wit halithium-
ion battery
& WARNING Risk ofexplosion due toelec‐
tros tatic charge
Electros taticch arge can cause spark swhich
ma yignit ethe highly flammable gasm ixture
in theb atter y.
#Todischar geanye lectros tatic charge
th at ma yhave built up, touc ht he me tal
ve hicle body befor ehandling theb at‐
te ry.
The highly flammable gasm ixtur eisc reated
while theb atter yisc harging and during starting
assis tance.
&
WARNING Danger of chemical burns
from theb atter yacid
Batter yacid is caustic.
#Avoid contact wit hthe skin, eyes or
clo thing.
#Do no tlean overthe batter y.
#Do notinhal ebattery gases.
#Ke ep children away from theb atter y.
#Immediate lyrinse batter yacido ffthor‐
oughl ywithp lenty of clean waterand
seek medicala ttention immediately.
Allvehicles
+ENVIRONMENTAL NOTEEnvironmental
damage causedbyimproper disposal of
batteries
Bat teries conta in pollutants. It is
illegal todispose of them wit hthe household
ru bbish.
#
Dispose of batteries in an
environmen tallyr esponsibl emanner.
Ta ke dischar gedb atteries toaq ualified
specialis tworks hop 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 hthe skin, eyes
or clo thing. Wear suitable pr otective
clo thing, in particular glove s, an
Breakdown assis tance 34
1
apron andaface mask .Immediate ly
ri nse electrolyte or acid splashes off
wit hc lean water.Consult adocto rif
necessar y.
Wear saf etyg lasses.
Keep 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 andchargingt he12V
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. *
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.
342
Breakdown assis tance
#When givingstartin 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.
The service li feof ab atter ythat has been
th awe dmaybe dramaticall yshor tened.
It is recommended that youh ave athawe db at‐
te ry checkedataq ualified specialis tworks hop. 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/charging
cables wit hasufficient cross-section and
insula tedt erminal clamps.
RNon- insulated parts of thet erminal clamps
mus tnotcom eintoc ontact wi thother me tal
parts while thej umper/charging cable is
connected totheb attery/jump-s tart connec‐
tion point.
RThe jumper/charging cable mus tnotcome
int oc ontact wi thanyp arts whic hmaymo ve
when thee ngine is running.
Breakdown assist ance34
3
RAlwaysm akes uret hat neither youn orthe
batter yiselectrost aticallycharged.
RKeep away from fire and open flames.
RDo no tlean overthe batter y.
RWhencharging: onlyuse batter ychargers
te sted and appr ovedbyM ercedes-Benza nd
re ad theb atter ychar ger'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 eof
12 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 ransmis‐
sion toposition j.
#Makesuret hat thei gnition and all electrical
consumer sareswitched off.
#Open theh ood.
#Slide co ver1 of positiv eclamp 2onthe
jump-s tarting connection point in thed irec‐
tion of thea rrow .
#Connect positiv eclamp 2onyour vehicle to
positiv epole of thed onor batter yusing the
jumper/charging cable .Alway sb egin with
positiv eclamp 2onyour ow nv ehicle firs t.
#Du ring thes tarting assistance proce ‐
du re:st ar tt he engine of thed onor vehicle
and runati dles peed.
#Connect then egativ epole of thed onor bat‐
te ry and ground po int3 ofyour ow nv ehicle
by usingt he jumper/charging cable. Begin
wit hthe donor batter yfirst .
#Du ring starting assist ance:star tt he
engine of your ow nv ehicle.
#During thec hargingp roce ss: star tt he
ch argingp rocess.
#During starting assist ance:lett he engines
ru nf or se veralm inutes.
#During starting assist ance:beforediscon‐
necting thej umper cable, switc honanelec‐
trical consumer in your ow nv ehicle, e.g. the
re ar wind owheater or lighting.
When thes tartin ga ssis tance/charging process
is compl ete:
34 4
Breakdown assis tance
#First,r emo vethej umper/charging cable
from ground point 3and negativ epole of
th ed onor batter y,then from positiv eclamp
2 and positiv epole of thed onor batter y.
Begine acht imew itht he contacts on your
ow nv ehicle firs t.
#Af terr emoving thej umper/charging cable,
close co ver1 of positiv eclamp 2. Fu
rther information can be obtained at aquali‐
fi ed specialis tworks hop.
To ws tarting or towing away
Perm itted towing me thods
Mercedes-Ben zrecommends transportin gyour
ve hicle in thec ase of abreakdown, rath er than
to wing it away. *
NO
TEDama getothev ehicle due to tow‐
ing away incor rectly
#Obser vethei nstruction sand no teso n
to wing away.
Breakdown assis tance 34
5
Perm itted towing me thods
Ve hicl eequipment/to wing
me thod
Bo th axlesont hegroundFront axle raisedRe ar axle raised
Ve hicles wit hmanual transmission Yes, maximum 31miles( 50 km) at
31 mp h(50 km/h) Ye
s, maximum 31miles( 50 km) at
31 mp h(50 km/h) Ye
s, maximum 31miles( 50 km) at
31 mp h(50 km/h)
Ve hicles wit hautomatic transmis‐
sion Ye
s, maximum 31miles( 50 km) at
31 mp h(50 km/h) No
Yes, if thes teering wheel is fixe di n
th ec enter position wit hasteering
wheel loc k.
4MATIC vehicles Yes, maximum 31miles( 50 km) at
31 mp h(50 km/h) No
No
Towing wit haraiseda xle:towing should be
per form ed byatow ing compan y.
Towing thev ehicle wit hbotha xlesont he
gr ound
#Obser vethen otes on thep ermitted towing
me thods (→pag e345) (→pag e346).
#Mak esuret hat theb atter yisc onnected and
ch arge d.
When theb atter yisd ischar ged:
Rthee ngine cannot bestar ted.
Rth ee lectric parking brak ecannot bereleased
or applied.
Rve hicles with automatic transmission: the
automatic transmission canno tbeshiftedt o
position iorj.
34 6
Breakdown assis tance
%Vehicles with automatic transmission: if
th ea utomatic transmission cannot be shif‐
te dtop osition i,ort he multifunction dis‐
pla yint he instrument clus terd oes no tshow
anything, ha vethev ehicle transpor ted
aw ay(
→pag e348). Atow ing vehicle wit hlift‐
ing equipment is requiredforv ehicle trans‐
por tation.
* NO
TEDama gedue to to wing away at
exc essively high speeds or over long dis‐
ta nces
The driv etra in could be damaged when tow‐
ing at excessively high speeds or over long
dis tances.
#At ow ing speed of 30 mph(50 km/h)
mus tnotbe exc eeded.
#Atow ing dis tance of 30 miles (50 km)
mus tnotbe exc eeded.
&
WARNING Risk of accident whe ntow ing
av ehicle whic histoo heavy
If th ev ehicle being tow- star tedort owed
aw ay is heavier than thep ermissible gross
mass of your vehicle, thef ollowing situations
can occur:
RThe towing eyem aybecome de tach ed.
RThe vehicle/trailer combination may
swer veoreve noverturn.
#If ano ther vehicle is tow- star tedo r
to we da way,its weight mus tnotexc eed
th ep ermissible gross mass of your ow n
ve hicle.
Ifav ehicle mus tbetow-sta rted or towe da way,
its weight mus tnotexc eed thep ermissible gross
mass of thet ow ing vehicle.
#Information on thep ermissible gross mass of
th ev ehicle can be found on thev ehicle iden‐
tification plate.
#Ve hicles with automatic transmission: do
no to pen thed rive r's door or front passenger
door ,otherwise thea utomatic transmission
automaticall yshifts toposition j.
#Installth et ow ing eye(→pag e350).
#Attach thet ow bar.
* NO
TEDama gedue toincor rect connec‐
tion
#Onl yconnect thet ow ro pe or towb arto
th et ow ing eyes.
#Deactivat ethe automatic locking mechanism
(→pag e64).
#Do no tactivat ethe HOLD function.
#Deactivat eActiv eBrake Assi st(→pag e164).
#Ve hicles with automatic transmission:
shif tthe automatic transmission toposition
i.
#Re lease thee lectric parking brake.
Breakdown assis tance 34
7
&WARNING Risk of accident duetol imi‐
te ds afet y-re lated function sduring the
to wing process
Saf ety-re lated function sarelimited or no lon‐
ge ra vailable in thef ollowing situations:
Rthei gnition is switched off.
Rtheb rake system or po wersteering sys‐
te mism alfunctioning.
Rthee nergy supply or theo n-boar delectri‐
cal sy stem is malfunctioning.
When your vehicle is then towe da way,signif‐
icantly mor eeffor tm aybe requ ired tosteer
and brak ethan is normall yrequired.
#Use atow bar.
#Mak esuret hat thes teering wheel can
mo vefreely ,befor etow ing thev ehicle
aw ay.
* NO
TEDama gedue toexcessiv etracti ve
po we r
Ifyo up ullaway sharpl y,thet ractiv epowe r
ma ybet oo high and thev ehicles could be
damaged.
#Pull away slowl yand smoo thly.
Loading the vehicl efor transport
#Obser vethen otes on towing away
(→pag e346).
#Connec tthe towb arto thet ow ing eyet o
load thev ehicle.
#Vehicles with automatic transmission:
Shif tthe automatic transmission toposition
i.
% Ve
hicles with automatic transmission:
The au tomatic transmission ma ybelocked
in position jinthee vent of damage tothe
electrical sy stem. Toshif ttoi,p rovide the
on-boar delectrical sy stem wit hpowe r
(
→pag e342).
#Load thev ehicle ont othe transpor ter.
#Ve hicles with automatic transmission:
Shif tthe automatic transmission toposition
j.
#Use thee lectric parking brak etosecurethe
ve hicle and pr event it from rolling away.
#Onl ysecur ethe vehicle bythew heels.
Ve hicles with AD SPLUS(Ad aptiv eDamping
Sy stem PLUS)
&
WARNING Risk of an accident when
transporting vehicles wit hAdaptive
Damping Sy stem PLUS
The reduced damping forc es on thev ehicle
being transpor tedc an cause thev ehicle/
trailer combinatio ntostart to swing.
As aresult, when transporting vehicles with
th eA daptiv eDampingS ystemP LUS,the
ve hicle/trailer combination ma ystart to skid.
Consequentl y,yo uc ould lose cont rolofy our
ve hicle.
#When transporting, ensur ethat:
34 8
Breakdown assis tance