Get Checking and refilling levels -> 12-volt battery Guide for Seat Arona 4 Door First Generation (2017-2026)

Checking and reﬁlling levels

●

If the warning lamp

ﬂashes although the

All work on batteries requires specialist knowl-

edge. Please refer to a SEAT Ocial Service

or a workshop specialising in batteries: risk of

burns or exploding battery!

be temporarily disabled to prevent the battery

from running ﬂat. These functions will come

back on as soon as the ignition is switched on

and the engine started.

oil level is correct, stop driving. Do not even

run the engine at idle speed! Seek professional

assistance.

The battery must not be opened! Never try to

change the ﬂuid level of the battery. Otherwise

explosive gas is released from the battery that

could cause an explosion.

Engine oil level too low

WARNING

The indicator lamp lights up yellow.

Working on the 12-volt battery and electri-

cal system can cause severe burns, ﬁre and

electric shock. Always read and observe the

following warnings and safety precautions

before working on the battery:

●

Check the engine oil level as soon as possible

››› page 276.

Battery warning indications

●

Change the oil as soon as you have the op-

portunity to do so.

Wear protective goggles.

●

Before working on the 12-volt battery,

switch oꢀ the ignition and all electrical con-

sumers and disconnect the negative cable

from this battery.

Battery acid is extremely corrosive. Wear

protective gloves and eye protection.

Rinse any splashes of electrolyte with

plenty of water.

Fault in the oil level sensor

The control lamp ﬂashes yellow.

●

Always keep children away from the 12-volt

●

Have the check done by a specialised work-

battery electrolyte and the battery itself.

Fires, sparks, open ﬂames and smoking

are prohibited.

shop.

●

Always wear eye protection and protective

●

Until then it is advisable to check the oil level

gloves.

The battery should only be charged in a

well-ventilated zone. Risk of explosion!

every time you refuel.

●

The battery electrolyte is very corrosive It

can cause skin burns and blindness. When

handling the 12-volt battery, protect your

hands, arms and face in particular from acid

splashes

Keep children away from acid and the

battery.

12-volt battery

Always follow the instruction manual.

Introduction

●

Do not smoke while working and never

work in the vicinity of naked ﬂames or sparks.

The 12 volt battery is located in the engine

compartment. Its status is checked and, if nec-

essary, it is replaced as part of maintenance

work.

●

If the vehicle is not used for long periods

Avoid sparks caused by electrostatic dis-

charges, just like when handling electric ca-

The vehicle has a system for monitoring

the current consumption when the engine

is left unused for extended periods of time

››› page 282. Some functions, such as the in-

terior lights, or the remote door opening, may

bles and devices.

●

Never short the battery terminals.

278

Checki1n2g-vaonldt breaﬁttlelinryg levels

Check the level

●

Never use damaged 12-volt batteries. They

Note

could explode. If the 12-volt battery is dam-

The electrolyte level should be checked regu-

larly in high-mileage vehicles, in hot countries

and in older batteries.

During the winter, the starting power may

be reduced, and if necessary, the battery

should be charged.

aged, replace it immediately.

●

Never use a frozen 12 volt battery. When

the battery is discharged, it may freeze at

temperatures close to 0°C (+32 °F). If the 12-

volt battery is frozen, replace it immediately.

●

Check the colour display in the sight glass on

the top of the battery ››› Fig. 189.

Check the electrolyte level

●

If there are air bubbles in the window, tap the

window gently until they disperse.

NOTICE

The “magic eye” indicator, located on the top

of the battery changes colour, depending on

the charge state and electrolyte level of the

battery.

Do not expose the 12-volt battery to direct

sunlight for a prolonged period of time.

●

Ultraviolet rays can damage the battery

casing.

There are two dierent colours:

Yellow or colourless: The battery's electrolyte

level is too low. Go to a specialised work-

shop to have the battery checked and re-

placed if necessary.

NOTICE

If the vehicle is not to be used for a long pe-

riod of time, protect the 12-volt battery from

frost.

Fig. 189 Sight glass on the top of the 12 volt

battery (schematic representation).

Black: The battery’s electrolyte level is correct.

●

The battery may freeze and, as a result,

suꢀer irreparable damage.

Charging, replacing, disconnecting

and connecting the 12-volt battery

Battery access

The 12 volt battery is located in the engine

compartment.

Note

If you suspect that the 12-volt battery is dam-

aged or defective, have it checked by a quali-

ﬁed specialist workshop.

●

Raise the bonnet ›››

in Working in the

After starting the engine with a deeply dis-

charged or newly replaced 12-volt battery,

or after a jump start, some system settings

(time, date, personalised comfort settings

and programs) may be incorrectly set or de-

leted. Check and correct these settings once

the battery is suciently charged.

engine compartment on page 266.

●

Lift the cover that protects the front of the

Charging the 12-volt battery

battery.

Contact a specialist workshop for charging the

12-volt battery, as the battery model ﬁtted in

the vehicle in the factory uses a technology

279

Checking and reﬁlling levels

qualiﬁed technician has both the right technol-

ogy to make the adjustment and the correct

replacement batteries.

to 12 mph). If the warning lights do not go out,

visit a specialist workshop and have the vehicle

checked.

that requires limited voltage charging ›››

SEAT recommends visiting a SEAT dealership

for this.

The use of unsuitable batteries will invalidate

the approval.

If the 12-volt battery has been disconnected for

a long period of time, it is likely that the next

service is not correctly indicated or calculated

››› page 16 . In this case it will be necessary

to take into account the maximum maintenance

intervals allowed ››› page 301.

Replacing the 12-volt battery

The 12-volt vehicle battery has been designed

to suit its location and has special safety fea-

tures. If a 12 volt battery needs to be replaced,

the replacement battery must be installed by

a qualiﬁed technician. SEAT recommends visit-

ing a SEAT dealership. Component information

regarding size, maintenance, power and safety

characteristics to be met can be obtained from

a qualiﬁed technician, who should have the

necessary documentation and technical equip-

ment. SEAT recommends visiting a SEAT deal-

ership.

Vehicles with Start-Stop functions (

››› page 116) are ﬁtted with a special battery.

Therefore, it must only be replaced with a bat-

tery of the same speciﬁcations.

Vehicles with a “Keyless Access” system

››› page 66: If the ignition cannot be switched

on after connecting the 12 volt battery, lock and

unlock the vehicle from the outside. Then try to

switch on the ignition again. If the ignition does

not work, seek professional assistance.

Disconnecting the 12-volt battery

If the 12 volt battery is to be disconnected from

the vehicle's electrical system, please note the

following:

●

Switch o all electrical consumers.

Before disconnecting the battery, unlock the

WARNING

The degassing hole of the 12 volt battery must

always be on side of the negative pole. The

degassing hole on the side of the positive pole

must always be sealed.

vehicle, otherwise the alarm will be triggered.

Attaching the 12-volt battery incorrectly or

using unsuitable batteries may result in short

circuits, ﬁre and serious injury.

●

First disconnect the negative cable and then

the positive cable ›››

●

Use only maintenance-free 12 volt batter-

Only use maintenance-free 12 volt batteries

that comply with the TL 825 06 and VW 7 50 73

standards. These standards must be dated Oc-

tober 2014 or later.

Connecting the 12-volt battery

ies with an anti-spill system with the same

properties, speciﬁcations and dimensions as

the factory-ﬁtted battery.

●

Switch o all electrical consumers before re-

connecting the 12 volt battery.

●

First reconnect the positive cable and then

The 12 volt battery must always be replaced

by a qualiﬁed technician, as the vehicle's elec-

tronic system must also be adjusted as part

of the replacement. In addition, the battery pa-

rameters relating to operational safety can only

be determined with the original battery. Only a

the negative one ›››

After connecting the 12 volt battery and switch-

ing on the ignition, several control lamps may

light up. These lamps go out after a short dis-

tance at a speed of approx. 15 to 20 km/h (10

280

Checki1n2g-vaonldt breaﬁttlelinryg levels

12 volt battery

WARNING

For the sake of the environment

Charging the 12-volt battery creates a highly

explosive mixture of detonating gases.

The indicator lamp lights up YELLOW. The fol-

lowing message is displayed:

●

The battery may contain toxic substances,

such as sulphuric acid and lead. Dispose of

the 12 volt battery in accordance with the

applicable regulations.

●

Only charge the 12-volt battery in a well-

Low level of the 12 V vehicle bat-

tery. Charge while driving

ventilated place.

●

Electrolyte can contaminate the environ-

●

Never charge a 12-volt battery that is fro-

Starting capacity may be limited. If this driver

message goes out after a certain amount of

time, the vehicle's battery has recharged while

driving and reached a sucient level. If the

driver message does not go out, take the vehi-

cle to a specialized workshop.

ment. If any operating ﬂuid leaks out, collect

zen or has thawed. When the battery is dis-

charged, it may freeze at temperatures close

to 0°C (+32°F).

it and dispose of it properly.

●

If the 12-volt battery has frozen, have it re-

Troubleshooting

placed without fail.

●

A short circuit may occur if the wires are

Alternator fault

incorrectly connected to the poles. First

connect the positive cable and then the neg-

ative one.

12 volt battery

The control lamp lights up in RED. The following

messages may be displayed:

The indicator lamp lights up YELLOW. The fol-

lowing message is displayed:

The 12 V battery does not charge.

Park safely!

Error: 12 V vehicle battery. Engine

cannot be started. Go to the work-

shop.

NOTICE

Stop driving! Stop the vehicle at the next

opportunity and in a safe place. The vehicle's

battery is no longer charged from the alterna-

tor while driving, or there is a fault in the 12-volt

on-board network. As the battery gradually dis-

charges, switch o all electrical devices that

are not essential.

●

Never connect or disconnect the 12-volt

battery when the ignition is switched on or

the engine is running. Also, never use a 12-

volt battery that does not meet the vehicle's

battery speciﬁcations. The electrical system

or certain electronic components could be

damaged and electrical malfunctions could

occur.

There is a fault in the connection between the

on-board network and the 12-volt battery.

If the engine is switched o in this situation, it

cannot be restarted. If necessary, use the jump

leads ››› page 252 or seek assistance from

qualiﬁed personnel.

●

Switch o the ignition and any electrical con-

●

sumers that are not required.

●

Never connect accessories that supply

Contact a specialised workshop.

power, such as solar panels or battery

chargers, to the 12-volt socket or cigarette

lighter, to charge the 12-volt battery. This

could damage the vehicle's electrical sys-

tem.

●

Contact a specialised workshop.

Request a check of the electrical system.

281

Checking and refilling levels -> 12-volt battery for Your Seat Arona 4 Door First Generation (2017-2026)

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