Volkswagen Golf 1999 Service Manual page 4271

Battery, checking
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Notes:
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 battery test
Page 27-30 .
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.
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
Green sufficient charge (and electrolyte
level) OK
Black no charge or insufficient charge
Page 27-34
Colorless or yellow
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replace battery
13/2/2005
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