2012 MERCEDES-BENZ M-Class charging

Disp
laymessa ges Poss
iblecauses/c onseq uences and M Solu
tions The
yello w! warning lamp lightsup. The redF (USA
on ly)/ ! (Canadaonly) indic ato rlamp flashes for
appro ximately10 sec onds aftertheelec tric park ingbrak ehas
been applied orrele ased. Itth en goes outorrem ains lit.
The electric park ingbrak eis malf unctionin g.
X Swit choff theign ition and turnit back on.
X En gage theelec tric park ingbrak e.
If it is no tp ossible toengage theelectric parking brake:
X Shift thetrans mission toP.
X Visit aquali fiedspecialist workshop.
If it is not possible torelease theelectric parking brake:
X Release theelectric parking brakeautomatically (Ypage 156).
If the electric parking brakestillcann otbe released:
X Consult aquali fiedspecialist workshop. The
yellow !warning lamplights up.When yourelease orapply
the electric parking brakemanually ,the red F (USA
only)/ !(Canada only)indicator lampflashes.
The electric parking brakeismalfunct ioning.Itis not possible to
apply theelectric parking brakemanually .
X Shift thetrans mission toP.
X Visit aquali fiedspecialist workshop. F(USA
only)!(Canada
only) Pkg
Brake Inoperative The
yellow !warning lamplights up.The redF (USA
only)/ !(Canada only)indicator lampflashes for
approximately 10seconds aftertheelectric parking brakehas
been applied orreleased. Itthen goes outorremains lit.
The electric parking brakeismalfunct ioning,e.g.because of
overvoltage orundervoltage.
X Remove thecause forthe overvoltage orundervoltage, e.g.by
charging thebattery orrestart ingthe engine.
X En gage orrelease theelectric parking brake.
If it remains impossible toapply orrelease theelectric parking
brake:
X Switch offthe ignition andturn itback on.
X En gage orrelease theelectric parking brake.
If the electric parking brakestillcann otbe released:
X Consult aquali fiedspecialist workshop. Display
messages
243On-board computer and displays Z

electr
ostaticcharge ordue tospark
format ion.
! Befor eworkin gon the batter y,e.g.
loosenin gthe batter yterm inals, switch off
the engine andremove theSmart Keyfrom
the ignition .Onv ehicles withKEYLE SS-GO,
make surethattheignition isswitch edoff.
Check thatallthe indicat orlamps inthe
inst rument clusterareoff. You may
other wisedestr oyelectr oniccompon ents,
such asthe altern ator.
! Like other batter ies,thevehicle battery
may discharge overtime ifyou donot use
the vehicle. Inthis case have thebatter y
chec kedataqualified specialist workshop,
such asan authoriz edMercedes- Benz
Center .You can also charge thebattery
with acharger recomm endedbyMercedes-
Benz .Cont act anauthorized Mercedes-
Benz Center formore inform ation.
The battery andthecover ofthe positive
termin alclamp mustbeinstalled securely
during operation. i
Remove
theSmart Keyifyou park the
vehicle anddonot require anyelectric al
consumer s.The vehicle willthen usevery
little energy, thusconser vingbattery
power.
Mercedes-B enzrecomm endsthatyoudonot
carry outwork onbatteries yourself,e.g.
removing orcharging. Alwayshavethiswork
performed ataquali fiedspecialist workshop,
e.g. anauthorized Mercedes-B enzCenter. Charging
thebatt ery G
WARNIN
G Never
charge abattery stillinstalled inthe
vehicle unlessabattery charger unitapproved
by Mercedes-B enzisbeing used.Gases may
escape duringcharging andcause explosions
that may result inpaint damage, corrosion or
personal injury. Ab
attery charge runit spe cially ad apted for
Mer cedes-Be nzveh icles and teste dand
ap pro ved byMer cedes-Be nzisava ilab leas an
acce ssory.It pe rmi tsthe charging ofthe
ba ttery inits installed po sitio n.Co ntact an
au thor izedMer cedes-B enzCenter forfurther
info rma tiona nd ava ilab ility .
Ch arg ethe battery inacco rdance with the
sep arateins truc tions for the battery charger. G
WAR
NING The
reisaris ko facid burns during the
cha rging pro cess dueto the gases which
esca pefrom thebattery .Donot lean over the
battery duringthecharging process. G
WARNING Batt
eryacid iscaustic. Avoidcontactwith the
skin, eyesorclothin g.
! Only charge theinstalled batterywitha
battery charger whichhasbeen testedand
approved byMercedes-B enz.These battery
chargers allowthebattery tobe charged
while stillinstalled.
! Only usebattery chargers witha
maximum chargingvoltageof14.8 V.
! Only charge thebattery usingthejump-
start ingconn ection point.
The jump-st artingconnection pointisin the
engine compartm ent(Ypage 341).
X Open thehood (Ypage 312).
X Connect thebattery charger tothe positive
termin aland earth pointinthe same order
as when connectin gthe donor battery in
the jump-st artingprocedure
(Y page 341).
X Read thebattery charger's operating
instr uctions beforecharging thebattery. 340
Bat
teryBreakdown assistance

Jump
-starting G
WARNING Failure
tofollow thesedirections willcause damage tothe electronic componen ts,and canlead
to abattery explosion andsevere injuryordeath.
Never leanover batteries whileconnecting orjump startin g.You might getinjured.
Battery fluidcontains sulfuric acid.Donot allow thisfluid tocome incont actwith eyes, skinor
clothing. Incase itdoes, immediately flushaffected areawithwater, andseek medical helpif
necessary.
Ab attery will also producehydro gengas, whichis flam mable andexplosiv e.Keep flamesor
spar ksaway from battery, avoid improper connectiono fjumpe rcables, smoking,etc.
At tempt ingtojum pstart afroz en bat tery can result initexp lodin g,caus ingpers onalinj ury.
Read allinstruct ionsbefo reproc eedin g.
! Avoid repe atedand lengthy start ing attempt s.Ot her wise, non-com bust edfuel may
damage thecat alytic converter27
and creat earisk offire.
Do notu se arapid-charging devicetostart theengine.
Make surethejumper cablesarenot damage d.
Make surethejumper cablesarenot touching anyother metal objects whentheyare
conn ected tothe battery.
If your vehicle's batteryisdischarged, theengine canbejump-start edfrom another vehicle
or from asecond batteryusingjumper cables.
Observe thefollowi ngpoints:
X The battery isnot accessible inall vehicles. Ifthe other vehicle's batteryisnot accessible,
jump-start thevehicle usingasecond batteryorajump- start ing device.
X On lyjum p-start theveh iclewhen theen gin eis co ldand thecat alyti cconvert ersystem has
cooled down28
.
X Do not start theengine ifthe battery isfroz en.Let the battery thawfirst.
X Jump-start ingmay onlybeperformed frombatteries withanominal voltageof12 V.
X Only usejumper cableswhichhaveasufficient cross-section andinsulated terminalclamps.
X Make surethatthejumper cablescannotcome intocontactwith parts, suchasthe pulley
or the fan. These partsmove whentheengine isstart edand while itis runnin g.
X Ifthe battery isfully discharged, leavethebattery thatisbeing usedtojump-st artconn ected
for afew minutes beforeattempt ingtostart .This charges theempty battery alittle. i
Jumper
cablesandfurther information aboutjump-st artingcanbeobtained fromany
authorized Mercedes-Ben zCent er,for example.
X Make surethatthetwo vehicles donot touch.
X Secure thevehicle byapplying theelectr icparkin gbrake.
X Shift thetran smission toposition P.
27 Only vehicles withagasoline engine.
28 Only vehicles withagasoline engine. Jum
p-starting
341Breakdown assistance Z