E-Class (W211) 2003-2009

replacement battery + hose ventilation

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Old 02-25-2009, 03:26 PM
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replacement battery + hose ventilation

I just replaced my OEM battery with an Interstate Battery for my E500. Car works fine but there was a clear plastic hose (slightly smaller than a pinky) connected to the OEM battery (air circulation to atmosphere?) The Interstate Battery doesnt seem to have a similar sized hole. it has an oval hole but its further away. Is the hose important? thanks in advance!
Old 02-25-2009, 07:24 PM
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Yes, it's important. Car manufacturers don't install unimportant things.

Lead/acid batteries breathe suphuric acid-laced fumes.

Under the hood of the car it's not such a big deal, but in your trunk it is. The hose directs them to a safe location where they won't cause damage to surrounding parts of the car.

Find a way to vent your new--not made for this car--battery.
Old 02-25-2009, 07:53 PM
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any ideas on how? the hose comes from a metal cutout...
Old 02-26-2009, 01:13 AM
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W221 S600, W220 S55 AMG Kompressor, W124 300E, W140 S320, W210 E3204M W164 ML320 Bluetec
Originally Posted by lkchris
Yes, it's important. Car manufacturers don't install unimportant things.

Lead/acid batteries breathe suphuric acid-laced fumes.

Under the hood of the car it's not such a big deal, but in your trunk it is. The hose directs them to a safe location where they won't cause damage to surrounding parts of the car.

Find a way to vent your new--not made for this car--battery.
+1

I would recommend only an OEM battery.
Old 02-26-2009, 09:02 AM
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03 E500 and Corvette
Most replacement bat's have a plug in the vent hole that the car vent line connects to. Hopefully you kept the male plug on the car vent line that plugs into the aftermarket bat. If the bat you bought really is for a MB it will have the place to plug in the vent.

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