TT Quattro Coupe V6-3.2L (BHE) (2005)
Battery: Description and Operation
Battery With Central Gas Venting
Battery With Central Gas Venting
Function
New generation batteries are equipped with a central gas venting system and integrated flame trap. Function: Gases produced during charging escape
through a central opening on the side of the upper cover. The integrated flame trap prevents flammable gases in the battery from igniting. The flame trap
is comprised of a small round fiberglass mat with a diameter of 15 mm and a thickness of 2 mm. Working as a one-way-valve, it allows gases produced
during charging to vent.
There are two different types of batteries with central gas venting:
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Batteries WITH external vent connection and hose for central gas venting.
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Batteries WITHOUT vent connection and hose for central gas venting.
WARNING:
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Only install batteries of the latest type with central gas venting.
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Where equipped, ensure vent hose and hose connection are always secured to the battery housing during servicing.
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Vent hose must not be kinked or pinched.
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Always use genuine battery cell caps.Plugs must be installed with an O-ring seal.