volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 3100 > < Initial Inspection and Diagnostic Overview|Page 3098
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Commercially available hydrometer

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Shop rags

NOTE:

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Minimum battery temperature of 10 °C (50 °F) is required when carrying out specific gravity tests.

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Test can be performed immediately after charging battery.

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Remove all battery cell caps.

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Dip end of hydrometer into cell and extract sufficient electrolyte to allow indicator float to swim freely in the electrolyte. Make note of each cell's
specific gravity reading from indicator float -arrow-. Repeat this sequence until all cells have been tested.

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The greater the electrolyte density (specific gravity) in kg/cubic dm, the higher the indicator float position.

Initial Inspection and Diagnostic Overview|Page 3100 > < Initial Inspection and Diagnostic Overview|Page 3098