Owner's Manual - Page 214

For 2011 IBIZA ST.

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212 Checking and refilling levels
WARNING (Continued)
Deactivate the anti-theft alarm by unlocking the vehicle before you
disconnect the battery! The alarm will otherwise be triggered.
When disconnecting the battery from the vehicle electrical system,
disconnect first the negative cable and then the positive cable.
Switch off all electrical consumers before reconnecting the battery.
Reconnect first the positive cable and then the negative cable. Never re-
verse the polarity of the connections. This could cause an electrical fire.
Never charge a frozen battery, or one which has thawed. This could
result in explosions and chemical burns. Always replace a battery which
has frozen. A flat battery can freeze at temperatures around 0°C.
Ensure that the vent hose is always connected to the battery.
Never use a defective battery. This could cause an explosion. Replace
a damaged battery immediately.
For vehicles with the battery in the luggage compartment: Check that
the battery gas ventilation hose is securely attached.
CAUTION
Never disconnect the battery if the ignition is switched on or if the en-
gine is running. This could damage the electrical system or electronic com-
ponents.
Do not expose the battery to direct sunlight over a long period of time,
as the intense ultraviolet radiation can damage the battery housing.
If the vehicle is left standing in cold conditions for a long period, protect
the battery from freezing. If it freezes it will be damaged.
Checking the electrolyte level
The electrolyte level should be checked regularly in high-
mileage vehicles, in hot countries and in older batteries.
Open the engine bonnet and the battery cover ⇒ 
in Safety in-
structions on working in the engine compartment on page 199
⇒ 
in Warnings on handling the battery on page 211.
Check the colour display in the "magic eye" on the top of the
battery.
If there are air bubbles in the window, tap the window gently
until they disperse.
The position of the battery is shown in the corresponding engine compart-
ment diagram ⇒ page 252.
The “magic eye” indicator, located on the top of the battery changes colour,
depending on the charge state and electrolyte level of the battery.
There are two different colours:
Black: correct charge status.
Transparent/clear yellow: the battery must be replaced. Contact a spe-
cialist workshop.
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