TT Quattro Coupe V6-3.2L (BHE) (2005)
Battery: Component Tests and General Diagnostics
Battery With Charge Indicator (Magic Eye), Checking
Battery With Charge Indicator (Magic Eye), Checking
Charge indicator -arrow- displays electrolyte level and charge condition.
NOTE:
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As the charge indicator is located in a single cell, the indication is only valid for that cell. An exact assessment of battery condition should always
be confirmed by performing a load test
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If the charge indicator on batteries in excess of 5 years old are colorless, DO NOT attempt to top and/or recharge battery. Battery must be
replaced.
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Air bubbles that occur normally during battery charging (even during vehicle operation) may adversely affect charge indicator reading. To obtain
an accurate reading, gently tap the charge indicator with a screwdriver handle or rock the vehicle in order to displace any possible air bubbles that
have formed.
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Where equipped, battery cell caps may be covered with plastic foil
Charge indicator readings
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Green = sufficient charge (and electrolyte level) OK
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Black = no charge or insufficient charge.
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Colorless or yellow = critically low electrolyte level. Top up with distilled water immediately.