Get Breakdown assistance -> Battery (vehicle) Guide for Mercedes A Class 4 Door Third Generation (2012-2017)

Battery (vehicle)

344

Stow the tyre sealant bottle, the tyre infla-

tion compressor and the warning triangle.

Pull away immediately.

Stop after driving for approximately ten

minutes and check the tyre pressure with

the tyre inflation compressor.

The tyre pressure must now be at least

130 kPa (1.3 bar/19 psi).

To reduce the tyre pressure: depress

pressure release button : next to pres-

sure gauge ;.

When the tyre pressure is correct, unscrew

the filler hose from the valve of the sealed

tyre.

Screw the valve cap onto the tyre valve of

the sealed tyre.

WARNING

If the required tyre pressure is not reached

after driving for a short period, the tyre is too

badly damaged. The tyre sealant cannot

repair the tyre in this instance. Damaged tyres

and a tyre pressure that is too low can signif-

icantly impair the vehicle's braking and driv-

ing characteristics. There is a risk of accident.

Do not continue driving. Contact a qualified

specialist workshop.

To remove the tyre sealant bottle from the

tyre inflation compressor, press together

the locking tabs on the yellow cap.

Pull the tyre sealant bottle out of the tyre

inflation compressor.

i In your vehicle, you will find a sticker with

the Mercedes-Benz Service24h telephone

number, e.g. on the B-pillar on the driver's

side.

Correct the tyre pressure if it is still at least

The filler hose stays on the tyre sealant

bottle.

130 kPa (1.3 bar/19 psi). See the tyre

pressure table on the fuel filler flap for val-

ues.

Drive to the nearest qualified specialist

workshop and have the tyre changed there.

Have the tyre sealant bottle and the filler

hose replaced as soon as possible at a

qualified specialist workshop.

To increase the tyre pressure: switch on

the tyre inflation compressor.

Have the tyre sealant bottle replaced every

four years at a qualified specialist work-

shop.

Battery (vehicle)

Important safety notes

Work on the battery, e.g. removing or fitting,

requires specialist knowledge and the use of

special tools. Therefore, always have work on

the battery carried out at a qualified specialist

workshop.

Battery (vehicle)

345

WARNING

Work carried out incorrectly on the battery

can lead, for example, to a short circuit and

thus damage the vehicle electronics. This can

lead to function restrictions applying to

During the charging process, a battery produ-

ces hydrogen gas. If a short circuit occurs or

sparks are created, the hydrogen gas can

ignite. There is a risk of an explosion.

safety-relevant systems, e.g the lighting sys-

tem, the ABS (anti-lock braking system) or the

ESP^®(Electronic Stability Program). The oper-

ating safety of your vehicle may be restricted.

Make sure that the positive terminal of a

connected battery does not come into con-

tact with vehicle parts.

Never place metal objects or tools on a bat-

You could lose control of the vehicle, for

example:

tery.

It is important that you observe the descri-

bed order of the battery terminals when

connecting and disconnecting a battery.

When jump-starting, make sure that the

battery poles with identical polarity are

connected.

It is particularly important to observe the

described order when connecting and dis-

connecting the jump leads.

Never connect or disconnect the battery

when braking

in the event of abrupt steering manoeuvres

and/or when the vehicle's speed is not

adapted to the road conditions

There is a risk of an accident.

In the event of a short circuit or a similar inci-

dent, contact a qualified specialist workshop

immediately. Do not drive any further. Always

have work on the battery carried out at a

qualified specialist workshop.

terminals while the engine is running.

Further information about ABS (Y page 69)

and ESP^®(Y page 73).

WARNING

Battery acid is caustic. There is a risk of injury.

Avoid contact with the skin, eyes or clothing.

Do not breathe in any battery gases. Do not

lean over the battery. Keep the batteries out

of the reach of children. Immediately rinse off

battery acid thoroughly with plenty of clean

water and seek medical attention at once.

WARNING

Electrostatic build-up can lead to the creation

of sparks, which could ignite the highly explo-

sive gases of a battery. There is a risk of an

explosion.

Before handling the battery, touch the vehicle

body to remove any existing electrostatic

build-up.

Environmental note

Batteries contain pollutants.

It is illegal to dispose of them

with the household rubbish.

They must be collected sep-

arately and disposed of in an

environmentally responsible

recycling system.

The highly flammable gas mixture is created

while the battery is charging and when jump-

starting.

Always make sure that neither you nor the

battery is electrostatically charged. Electro-

static charge is created, for example:

Dispose of batteries in an

environmentally responsible

manner. Take discharged

batteries to a qualified spe-

cialist workshop or to a col-

by wearing synthetic fibre clothing

by friction between clothing and the seat

when you pull or push the battery across

carpet or other synthetic materials

when you rub the battery with a cloth

Battery (vehicle)

346

Wear suitable protective clothing,

in particular gloves, an apron and a

face mask.

lection point for used batter-

ies.

Immediately rinse acid splashes

off with clean water. Consult a doc-

tor if necessary.

! Have the battery checked regularly at a

qualified specialist workshop.

Observe the service intervals in the Service

Booklet or contact a qualified specialist

workshop for more information.

Wear eye protection.

! You should have all work involving the

battery carried out at a qualified specialist

workshop. In the exceptional case that it is

necessary for you to disconnect the battery

yourself, make sure that:

Keep children away.

Observe this Owner's Manual.

you switch off the engine and remove the

key. On vehicles with KEYLESS-GO,

ensure that the ignition is switched off.

Check that all the indicator lamps in the

instrument cluster are off. Otherwise,

electronic components, such as the

alternator, may be damaged.

For safety reasons, Mercedes-Benz recom-

mends that you only use batteries which have

been tested and approved for your vehicle by

Mercedes-Benz. These batteries provide

increased impact protection to prevent vehi-

cle occupants from suffering acid burns

should the battery be damaged in the event of

an accident.

you first remove the negative terminal

clamp and then the positive terminal

clamp. Never swap the terminal clamps.

Otherwise, the vehicle's electronic sys-

tem may be damaged.

In order for the battery to achieve the maxi-

mum possible service life, it must always be

sufficiently charged.

in vehicles with automatic transmission,

the transmission is locked in position P

after disconnecting the battery. The vehi-

cle is secured against rolling away. You

can then no longer move the vehicle.

The battery and the cover of the positive

terminal clamp must be fitted securely dur-

ing operation.

Like other batteries, the vehicle battery may

discharge over time if you do not use the

vehicle. In such cases, have the battery dis-

connected at a qualified specialist workshop.

You can also charge the battery with a

charger recommended by Mercedes-Benz.

For more information, please contact a quali-

fied specialist workshop.

Comply with safety precautions and take pro-

tective measures when handling batteries.

Have the battery charge checked more fre-

quently if you use the vehicle mainly for short

trips or if you leave it standing idle for a

lengthy period. Consult a qualified specialist

workshop if you wish to leave your vehicle

parked up for a long period of time.

When you park the vehicle, remove the key if

you do not require any electrical consumers.

The vehicle will then use very little energy,

thus conserving battery power.

Risk of explosion

Fire, naked flames and smoking

are prohibited when handling the

battery. Avoid creating sparks.

Battery acid is caustic. Avoid con-

tact with the skin, eyes or clothing.

Battery (vehicle)

347

If the power supply has been interrupted, e.g.

if the battery was discharged, you will have to:

Open the bonnet.

Connect the battery charger to the positive

terminal and earth point in the same order

as when connecting the donor battery in

the jump-starting procedure (Y page 348).

set the clock via Audio 20 or COMAND

Online (see separate operating instruc-

tions)

reset the function for folding the exterior

If the indicator/warning lamps do not light up

mirrors in/out automatically, by folding the at low temperatures, it is very likely that the

mirrors out once (Y page 114).

discharged battery has frozen. In this case

you may neither jump-start the vehicle nor

charge the battery. The service life of a bat-

tery that has been thawed may be reduced.

The starting characteristics may be impaired,

especially at low temperatures. Have the

thawed battery checked at a qualified spe-

cialist workshop.

Only charge the installed battery with a bat-

tery charger which has been tested and

approved by Mercedes-Benz. A battery

charger unit specially adapted for Mercedes-

Benz vehicles and tested and approved by

Mercedes-Benz is available as an accessory.

This device permits charging of the battery in

position. Contact a Mercedes-Benz Service

Centre for information and availability. Read

the battery charger's operating instructions

before charging the battery.

Charging the battery

WARNING

During charging and jump-starting, explosive

gases can escape from the battery. There is a

risk of an explosion.

Particularly avoid fire, naked flames, creating

sparks and smoking. Ensure there is sufficient

ventilation while charging and jump-starting.

Do not lean over a battery.

WARNING

Battery acid is caustic. There is a risk of injury.

Avoid contact with the skin, eyes or clothing.

Do not breathe in any battery gases. Do not

lean over the battery. Keep the batteries out

of the reach of children. Immediately rinse off

battery acid thoroughly with plenty of clean

water and seek medical attention at once.

WARNING

A discharged battery can freeze at tempera-

tures below freezing point. When jump-start-

ing the vehicle or charging the battery, gases

can escape from the battery. There is a risk of

an explosion.

Allow the frozen battery to thaw out before

charging it or jump-starting.

! Only use battery chargers with a maxi-

mum charging voltage of 14.8 V.

! Only charge the battery using the jump-

start connection point.

The jump-starting connection point is in the

engine compartment (Y page 348).

Breakdown assistance -> Battery (vehicle) for Your Mercedes A Class 4 Door Third Generation (2012-2017)

Related Topics

Popular Owner Manuals

Latest Owner Manuals