volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 6650 > < Initial Inspection and Diagnostic Overview|Page 6648
Page 13
background image

-

Commercially available hydrometer

-

Shop rags

NOTE:

-

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

-

Specific gravity of all cells must be checked.

-

Switch ignition off

-

Remove all battery cell caps.

-

Dip end of hydrometer into cell and extract sufficient electrolyte to allow indicator float to swim freely (the greater the electrolyte density in 
kg/cu.dm, the higher the indicator float position). Note each cell's specific gravity reading from float -arrow-. Repeat sequence until all cells are

Initial Inspection and Diagnostic Overview|Page 6650 > < Initial Inspection and Diagnostic Overview|Page 6648