Volkswagen Golf Service & Repair Manual: Checking colour indicator, “3-colour”
WARNING
| Danger of injury! Observe warning notices and safety
regulations
→ Chapter! |
|
| General information about colour indicator: |
| Applies for all batteries with “1J0”, “7N0” and “3B0”
indexes in original equipment and for all replacement batteries
191 915 105 AB and from “000 915 105 AX” index. |
| The colour indicator provides you with information about the
electrolyte level and charge state of the battery. |
| Before carrying out a visual check, tap the inspection
window lightly and carefully using the handle of a screwdriver.
The air bubbles, which can influence the display, will dissipate
when doing this. This will make the colour indicator reading
more accurate. |
 Note
| Air bubbles can form under the sight glass, particularly
when a battery has been recharged, i.e. also when the battery
has been charged during normal vehicle operation. These falsify
the reading of the colour indicator. |
| Since the colour indicator is only located in one battery
cell, the indicator also only applies to this battery cell.
Determining the exact condition of the battery is possible only
by means of a battery test
→ Chapter. |
| The colour indicator can be located at various positions on
the battery. |
| Three different colour displays are possible: |
| »Green«, battery is charged
sufficiently. |
| »Black«, battery partly
discharged, charge state < 65% or completely discharged |
| »Colourless or light yellow«,
battery must be renewed. |
WARNING
| It is not permissible to test or charge batteries
whose colour indicator is light yellow. Do not
slave/jump start the vehicle! |
| Danger of explosion when checking and charging or
slave/jump starting. |
| These batteries must be renewed. |
|
|
|
|
WARNING
Danger of injury! Observe warning notices and safety
regulations
→ Chapter!
...
WARNING
Danger of injury! Observe warning notices and safety
regulations
→ Chapter!
...
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–
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–
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–
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→ Chapter
...
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Visual check
Checking colour indicator, “2-colour”