S4 Quattro Cabriolet V8-4.2L (BHF) (2008)
‹› The greater the specific gravity of the electrolyte drawn in, the higher the float will ride.
‹› The specific gravity in kg/dm3 (specific gravity of electrolyte) can be read off the scale - arrow - on the hydrometer.
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Take reading on hydrometer and compare to values given in table:
The specific gravity in normal climatic zones must be at least 1.24 kg/dm3. If specific gravity is too low in all battery cells:
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Charge battery and then repeat electrolyte specific gravity test.
Example 1:
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specific gravity in cell 4 is too low (deviation greater than 0.03 kg/dm3)
Example 2: