New Beetle L4-1.8L Turbo (BNU) (2005)
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Battery equipped with permanent cell cover -2-.
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Charge indicator -1- displays electrolyte level and charge condition.
CAUTION: Under no circumstances should cover -2- be removed. Battery will be damaged and become unusable.
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.
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 -> replace battery
Visual check
Always carry perform a visual check of the battery before checking no load voltage, electrolyte specific gravity and load test.
Check for:
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Cracked battery case and resulting corrosion damage to surrounding area.
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Loose, damaged or corroded battery posts and terminals.
WARNING:
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Ensure that all battery post/terminal connections are securely installed and tightened according to the torque value specified.
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Intermittent contact at battery terminals may spark or cause electrical system malfunctions.
No Load Voltage, Checking
No Load Voltage, Checking
CAUTION:
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Battery cell caps must be screwed in tightly when charging, measuring voltage or performing load tests.
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The following notes and procedures must be followed to ensure correct measurements.
Special tools, testers and auxiliary items needed