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      02-24-2018, 01:28 AM   #17
HarryFD
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Drives: 2003 BMW Z4
Join Date: Jul 2017
Location: PNW

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Quote:
Originally Posted by Duped View Post
The old battery had a vent installed but when I installed the new one it wasn't easy to see it so i assumed it didn't have one. I ordered a dorman battery vent from amazon which looked like similar to the one installed and it was easier than driving to the dealer across town.

How safe is it to drive ventless?
The vent is to prevent the accumulation of corrosive fumes in your trunk which will damage the electronics and metal. My 911 has a similar setup and if you do not vent a conventional battery, the metal slowly gets eaten away.
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