A4 Quattro Wagon V6-3.0L (AVK) (2002)
Battery: Testing and Inspection
Battery With Charge Indicator
Battery With Charge Indicator
Distinguishing features
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Such batteries have a charge indicator.
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This charge indicator -arrow-provides information on the electrolyte level and charge of the battery to be tested.
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There are three different color indicators:
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Green ->Battery adequately charged.
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Black ->Not or inadequately charged.
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Colorless or yellow ->Critical electrolyte level reached; topping off with distilled water essential.
NOTE: If a battery is more than 5 years old and the indicator of the charge indicator is colorless, the battery is to be replaced with a new one.
Test sequence
NOTE:
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Air bubbles may form under the charge indicator, particularly if a battery has been recharged, i.e. even if the battery has been charged while
driving. These air bubbles falsify the color indicator of the charge indicator.
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If batteries are installed with caps for production reasons, these are covered with plastic sheeting.
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Before performing visual inspection, tap gently and carefully on charge indicator with the handle of a screwdriver.
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This dissipates the air bubbles
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Read color indicator of "charge indicator".