2004-2011 Mercedes A Class 4 Door Practical advice -> Battery User Manual
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Practical advice -> Battery for Your Mercedes A Class 4 Door Second Generation (2004-2011)

Practical adviceBatteryBatterytery. Avoid creatingR ESP ® is intervening .R there are tears in the sidewalls of theNotes on the vehicle batteryBattery acid is order for the battery to achieve the maxi-Avoid contact with theAfter driving in run-flat mode, you mustmum possible service life, it must always beskin, eyes or the wheel(s) checked for damage at asufficiently suitable protectivequalified specialist workshop which has theHave the battery charge checked more fre-clothing, in particularnecessary specialist knowledge and toolsquently if you use the vehicle mainly for shortgloves, an apron and ato carry out the work required. The faultytrips or if you leave it standing idle for aface must be replaced in every rinse acidMercedes-Benz recommends that you useTo prevent damage from corrosion, onlysplashes off with cleana Mercedes-Benz Service Centre for thisreplace the battery with one that has a centralwater. Consult a doctor ifpurpose. In particular, work relevant toventilation or on safety-related systems must beConsult a Mercedes-Benz Service Centre ifWear eye out at a qualified specialist work-you wish to leave your vehicle parked up forshop.a long period of time.G Risk of injuryi On a vehicle with MOExtended tyres, onlyKeep children MOExtended spare tyres. These mustComply with safety precautions and takebe of the size specified for the measures when handling this Owner'sRisk of , naked flames andH Environmental notesmoking are prohibitedDo not dispose of batteries with the house-when handling the bat-hold rubbish. Dispose of defective batteriesZin an environmentally responsible manner.263
Practical advice
Battery
Battery
tery. Avoid creating
R ESP ® is intervening constantly.
sparks.
R there are tears in the sidewalls of the
Notes on the vehicle battery
Battery acid is caustic.
tyre.
In order for the battery to achieve the maxi-
Avoid contact with the
After driving in run-flat mode, you must
mum possible service life, it must always be
skin, eyes or clothing.
have the wheel(s) checked for damage at a
sufficiently charged.
Wear suitable protective
qualified specialist workshop which has the
Have the battery charge checked more fre-
clothing, in particular
necessary specialist knowledge and tools
quently if you use the vehicle mainly for short
gloves, an apron and a
to carry out the work required. The faulty
trips or if you leave it standing idle for a
face mask.
tyre must be replaced in every case.
lengthy period.
Immediately rinse acid
Mercedes-Benz recommends that you use
To prevent damage from corrosion, only
splashes off with clean
a Mercedes-Benz Service Centre for this
replace the battery with one that has a central
water. Consult a doctor if
purpose. In particular, work relevant to
ventilation cover.
necessary.
safety or on safety-related systems must be
Consult a Mercedes-Benz Service Centre if
Wear eye protection.
carried out at a qualified specialist work-
you wish to leave your vehicle parked up for
shop.
a long period of time.
G Risk of injury
i On a vehicle with MOExtended tyres, only
Keep children away.
use MOExtended spare tyres. These must
Comply with safety precautions and take
be of the size specified for the vehicle.
protective measures when handling batter-
ies.
Observe this Owner's
Risk of explosion
Manual.
Fire, naked flames and
H Environmental note
smoking are prohibited
Do not dispose of batteries with the house-
when handling the bat-
hold rubbish. Dispose of defective batteries
Z
in an environmentally responsible manner.
263
Practical adviceBatteryTake them to a Mercedes-Benz Servicestep out of the vehicle first and touch theCentre or to a special collection point batteries.R Do not wipe the battery using a cloth. Thebattery could be destroyed as a result ofG Risk of injuryelectrostatic charge or due to flyingFor safety reasons, Mercedes-Benz that you only use batteries whichhave been tested and approved for your! Switch off the engine and remove the keyvehicle by Mercedes-Benz. These batteriesbefore disconnecting or removing the ter-provide increased impact protection to pre-minal clamps from the battery. You mayvent vehicle occupants from suffering acid1 Retaining screwotherwise destroy electronic components,burns should the battery be damaged in thesuch as the alternator.2 Capevent of an prevent acid burns, observe the follow-X Remove the floormat*.i Mercedes-Benz recommends that youing safety notes when handling batteries:have all work involving the battery, e.g.X Remove retaining screw 1 by turning itR Do not lean over , charging and replacing, carriedanti-clockwise, e.g. by using a at a qualified specialist workshop, e.g.R Do not place any metal objects on a bat-X Lift up cover 2.a Mercedes-Benz Service . You could otherwise cause a shortcircuit and the battery's gas mixtureInstallation location of the batterycould ignite.R Make sure that you do not create an elec-Your vehicle is equipped with a battery in thetrostatic charge, e.g. by wearing syn-footwell in front of the front-passenger clothing or as a result of friction onThe main fuse box is also located . Therefore, you should not pull orslide the battery over carpets or othersynthetic materials.R Never touch the battery first. To dis-charge a possible electrostatic charge,* optional264
Practical advice
Battery
Take them to a Mercedes-Benz Service
step out of the vehicle first and touch the
Centre or to a special collection point for
bodywork.
old batteries.
R Do not wipe the battery using a cloth. The
battery could be destroyed as a result of
G Risk of injury
electrostatic charge or due to flying
For safety reasons, Mercedes-Benz recom-
sparks.
mends that you only use batteries which
have been tested and approved for your
! Switch off the engine and remove the key
vehicle by Mercedes-Benz. These batteries
before disconnecting or removing the ter-
provide increased impact protection to pre-
minal clamps from the battery. You may
vent vehicle occupants from suffering acid
1 Retaining screw
otherwise destroy electronic components,
burns should the battery be damaged in the
such as the alternator.
2 Cap
event of an accident.
To prevent acid burns, observe the follow-
X Remove the floormat*.
i Mercedes-Benz recommends that you
ing safety notes when handling batteries:
have all work involving the battery, e.g.
X Remove retaining screw 1 by turning it
R Do not lean over batteries.
removing, charging and replacing, carried
anti-clockwise, e.g. by using a coin.
out at a qualified specialist workshop, e.g.
R Do not place any metal objects on a bat-
X Lift up cover 2.
a Mercedes-Benz Service Centre.
tery. You could otherwise cause a short
circuit and the battery's gas mixture
Installation location of the battery
could ignite.
R Make sure that you do not create an elec-
Your vehicle is equipped with a battery in the
trostatic charge, e.g. by wearing syn-
footwell in front of the front-passenger seat.
thetic clothing or as a result of friction on
The main fuse box is also located there.
fabrics. Therefore, you should not pull or
slide the battery over carpets or other
synthetic materials.
R Never touch the battery first. To dis-
charge a possible electrostatic charge,
* optional
264
Practical adviceBattery! Always disconnect the battery in theRemoving the batteryorder described below. Never swap the ter-X Disconnect the battery ( Y page 265).minal clamps. You may otherwise damageX Loosen the bolt which holds the battery inthe vehicle .X Apply the handbrake and shift the selectorX Remove the to position P on vehicles with AUTO-TRONIC*.Charging and fitting the batteryX Switch off all electrical consumers.X Turn the key to position 0 ( Y page 62) inG Risk of injurythe ignition lock and remove charge the battery in a well-ventilated3 Negative terminalX Remove the negative terminal clamp fromarea. As the battery is being charged, gases4 Positive terminalthe escape and generate minor explosions.X Remove the cover from the positive termi-This may injure you and other persons orDisconnecting the batterynal damage to the paintwork or acid cor-rosion on the vehicle.X Remove the positive terminal clamp fromG Risk of accidentthe can obtain information about batteryIf the battery is disconnected:chargers which allow the battery to beX Disconnect the breather hose.R the brake boosting effect will not be avail-charged when still installed from a qualifiedable. Greater braking force will then bespecialist workshop, e.g. a Mercedes-Benzrequired and the brake pedal travel willService longer. If necessary, depress theG Risk of injurybrake pedal with maximum is a risk of acid burns during theR you will no longer be able to turn the keycharging process due to the gases whichin the ignition from the battery. Do not lean overR the selector lever is locked in position Pthe battery during the charging vehicles with AUTOTRONIC*.Z* optional265
Practical advice
Battery
! Always disconnect the battery in the
Removing the battery
order described below. Never swap the ter-
X Disconnect the battery ( Y page 265).
minal clamps. You may otherwise damage
X Loosen the bolt which holds the battery in
the vehicle electronics.
place.
X Apply the handbrake and shift the selector
X Remove the battery.
lever to position P on vehicles with AUTO-
TRONIC*.
Charging and fitting the battery
X Switch off all electrical consumers.
X Turn the key to position 0 ( Y page 62) in
G Risk of injury
the ignition lock and remove it.
Only charge the battery in a well-ventilated
3 Negative terminal
X Remove the negative terminal clamp from
area. As the battery is being charged, gases
4 Positive terminal
the battery.
can escape and generate minor explosions.
X Remove the cover from the positive termi-
This may injure you and other persons or
Disconnecting the battery
nal clamp.
cause damage to the paintwork or acid cor-
rosion on the vehicle.
X Remove the positive terminal clamp from
G Risk of accident
the battery.
You can obtain information about battery
If the battery is disconnected:
chargers which allow the battery to be
X Disconnect the breather hose.
R the brake boosting effect will not be avail-
charged when still installed from a qualified
able. Greater braking force will then be
specialist workshop, e.g. a Mercedes-Benz
required and the brake pedal travel will
Service Centre.
be longer. If necessary, depress the
G Risk of injury
brake pedal with maximum force.
There is a risk of acid burns during the
R you will no longer be able to turn the key
charging process due to the gases which
in the ignition lock.
escape from the battery. Do not lean over
R the selector lever is locked in position P
the battery during the charging process.
on vehicles with AUTOTRONIC*.
Z
* optional
265

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