A4 Sedan V6-3.2L (BKH) (2007)
Battery: Description and Operation
Battery Specific Gravity, Measuring In All Cells
Lead-Acid Battery without Visual Indicator
Lead acid batteries with removable battery cell sealing caps, without charge indicator "Magic Eye" and filled with fluid electrolyte (wet battery)
require regular maintenance. The removable sealing caps allow for topping off with distilled water.
CAUTION!
Risk of injury from direct exposure to battery acid!
‹› Prior to handling or servicing batteries, read, understand and observe the Warnings and Safety Measures => [ There is a risk of
injury from the battery
acid. ] See: Battery.
Risk of explosion due to the explosive gas that forms during battery charging.
‹› Observe warning notes and safety precautions => [ Risk of explosion due to the explosive gas
that forms during battery charging. ] See: Battery.
Battery Specific Gravity, Measuring in All Cells
Special tools, testers and auxiliary items required
‹› Refractometer (T10007) or
‹› Commercially available hydrometer
Prerequisites
‹› The temperature of the battery acid must be at least +10 °C.
Procedure
In conjunction with battery test => [ Battery, Testing with Midtronics Battery/Starting/Charging System Analyzer MCR340A ] See: Testing and
Inspection/Component Tests and General Diagnostics/Battery Testing, the specific gravity measurement gives information about the condition of the
battery.
CAUTION!
Risk of injury from direct exposure to battery acid.
‹› Follow accident prevention regulations when working with battery acid => [ There is a risk of injury from the battery
acid. ] See: Battery.
‹› Wear protective eyewear and clothing => [ Protect against injury by using protective
eyewear and clothing. ] See: Battery.
‹› Specific gravity of electrolyte can be checked immediately after charging battery.
-
Remove all battery cell sealing plugs.
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Dip hydrometer into battery cell and siphon off enough electrolyte until float floats freely in electrolyte.