Should I plug 2nd vent hole?
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GLC300
Should I plug 2nd vent hole?
Just replaced the battery on my 2018 GLC300. The new battery has vent holes in both sides. The vent tube goes in the left side vent hole. The new battery came with a plug and a note that essentially says "If the manufacturer plugs the 2nd vent hole, use this plug."
Unfortunately I didn't think to check the OEM battery before I got rid of it. Does anyone know if I should use that plug to plug the 2nd hole (on the right side)? Or should I just leave it unplugged. Will it hurt it if I do/don't?
Unfortunately I didn't think to check the OEM battery before I got rid of it. Does anyone know if I should use that plug to plug the 2nd hole (on the right side)? Or should I just leave it unplugged. Will it hurt it if I do/don't?
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Joined: Nov 2021
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From: Hong Kong, China
2021 S450 4Matic
I do not have a 2018 GLC300 and so I speak from a general perspective.
Unless your vehicle has two vent tubes for you to plug into both vent holes of the battery, the 2nd vent hole should be plugged with the supplied plug.
Leaving the 2nd vent hole unplugged, hazardous gas (or even worse, corrosive acidic liquid) could come out and even accumulate. Obviously this is dangerous and not desirable.
Unless your vehicle has two vent tubes for you to plug into both vent holes of the battery, the 2nd vent hole should be plugged with the supplied plug.
Leaving the 2nd vent hole unplugged, hazardous gas (or even worse, corrosive acidic liquid) could come out and even accumulate. Obviously this is dangerous and not desirable.
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