VW Polo manuals

Volkswagen Polo Service & Repair Manual: 3-Color Visual Indicator, Checking

  WARNING
Risk of injury. Follow all Warnings and Safety Precautions. Refer to → Chapter „Warnings and Safety Precautions“.
Visual Indicator General Information
Applies to all original equipment batteries with index “1J0” , “7N0” and “3B0” and to all replacement batteries, part number 191 915 105 AB, and beginning with index “000 915 105 AX”.
The visual indicator shows the electrolyte level and the battery state of charge.
To obtain an accurate reading, gently tap the charge indicator with a screwdriver handle or rock vehicle slightly. By doing this, the air bubbles that occur normally during battery charging (even during vehicle operation) that adversely affect charge indicator reading will be displaced. The visual indicator will be more accurate.
  Note
Air bubbles can especially form under visual indicator when a battery is charged, including when charged while driving. This will cause an incorrect display.
The display is valid for only that one battery cell in which the visual indicator is located. An exact assessment of battery condition should always be confirmed by performing battery charge test → Chapter „Battery Tester -VAS6161-“.
The visual indicator may be located on different locations on the battery.
There Are Three Possible Color Indications:
»Green«: Battery is sufficiently charged.
»Black«: Insufficiently charged, less than 65% or discharged.
»Colorless or light yellow«, battery must be replaced.
  WARNING
Do not check or charge batteries that have a visual indicator that is bright yellow. Jump starting must not be used!
There is a risk of explosion during testing, charging or jump starting.
These batteries must be replaced.
   
Visual Display in Battery Cover, Checking
...

“2 Color” Visual Indicator, Checking
  WARNING Risk of injury. Follow all Warnings and Safety Precautions. Refer to → Chapter „Warnings and ...

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