service AUDI A4 2000 B5 / 1.G Battery Workshop Manual

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Battery
The battery is one of the most important
electrical components in the vehicle. If it
functions properly, the battery will make a
significant contribution to customer satisfaction.
To ensure a long service life, the battery must be
checked, serviced and maintained as described
in this section.
In addition to starting the engine, the battery has
additional functions as a buffer and supplier of
electrical power for the entire vehicle electrical
system.
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Note:

When installing the battery (if the battery has a central gas vent), make
absolutely certain that the hose is not pinched off. This allows the battery
be freely vented via the diffuser and the hose. If the battery does not have
a hose, make sure that the opening on the top of the battery's cover is not
plugged.
Make sure battery is securely mounted
If the battery is not secured properly, there is a risk that the following
might occur: - Install in reverse order of removal.
Shortened service life due to damage caused by vibrationBattery cell and plate damageDamage to battery case by the hold-down clamp (possible release of
electrolyte resulting in costly damage). Poor collision safety
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