Reply With QuoteI just put in a Duralast a couple months ago. Look for a hole that the vent hose goes thru in the floor centered behind the battery.(towards the rear of the car)
Big, Big Time Poster
Quick Battery Question
Battery failed in our 95 525i Touring last night so I'm going with the Autozone 49-DL. The Interstate battery that was in there had no vent tube like the one in my 90 535i does & there was no sign of a factory venting set up. Did they do away with this on the later cars?
90 535im
02 R1100S, 87 R100S
76 R90/S,73 R75/5
Alfa Romeos- 65 Giulia Spider Veloce
& 66 Duetto 1600 Spider
Major Contributor
I just put in a Duralast a couple months ago. Look for a hole that the vent hose goes thru in the floor centered behind the battery.(towards the rear of the car)
Big, Big Time Poster
I just checked & I found where the hole is. On my car its filled with factory sealant & coated with the original paint so it's obvious no battery has ever been vented in this car. Maybe by late 95 production they figured modern sealed batteries didn't require it??
90 535im
02 R1100S, 87 R100S
76 R90/S,73 R75/5
Alfa Romeos- 65 Giulia Spider Veloce
& 66 Duetto 1600 Spider
3 Grand Master
then pop it out, and plug it in. i'm thinking that maybe that was supposed to be something that the dealer or unloading point did, as you wouldn't want the "ocean spray" to come in the car.
Major Contributor
My car had a BMW vented battery but the tube was not hooked up, the tube didn't fit the vent. The Duralast came with everything needed to vent, including an adapter to connect the battery vent to the tube.
When I bought mine, they had a deal that if you bought a little package with felt terminal protectors and dielectric grease, for $1.99, they gave you 10% off the price of the battery at AutoZone...It was around $65 with tax IIRC.
Big, Big Time Poster
Not to be argumentative but why is the vent set up necessary with a sealed battery? Obviously my car has gone 11 years & 137k without it and there are no signs of corrosion around the battery.
90 535im
02 R1100S, 87 R100S
76 R90/S,73 R75/5
Alfa Romeos- 65 Giulia Spider Veloce
& 66 Duetto 1600 Spider
Big, Big Time Poster
Which model Duralast did you buy? I just got off the phone with Autozone & they said there is no adapter/vent arrangement included with the #49-DL that they show for my 95.Originally Posted by KenB
90 535im
02 R1100S, 87 R100S
76 R90/S,73 R75/5
Alfa Romeos- 65 Giulia Spider Veloce
& 66 Duetto 1600 Spider
Major Contributor
Mine was the 49-DL also...maybe it's a different non-vented version for the '95.
3 Grand Master
it isn't for corrosion, its more for explosion abatement. if you spend any time around an unenclosed battery (by that i mean one that you can see all of the time), you'll see that vibration, movement, queer electrical loads WILL cause it to spark at the terminals, even if only once in a blue moon. the same is true with lightswitches, occasionally, you can observe a spark come off of a household light switch. unless you are dealing with a truly sealed gel battery (like an optima) that you can mount upside down and such, any other choice will not be truly sealed. even maintenence free batteries have provisions for removing the venting caps with screwdrivers and such. if it is a car battery, and it isn't a gel type, it vents explosive h2 gas to the atmosphere under electrolysis (hence bmw's insistence for a vent kit). if the car was new, maybe then i'd say that one's risk is low, but considering how connections corrode, get worse, &c. as the car gets older, i certainly wouldn't want that thing under my back seat without a vent on it. car batteries explode underhood every day--well maybe not every day, but i've certainly seen one--and the ones underhood don't even NEED vent kits.
3 Grand Master
if you go into the store, and look for their group 49 battery, there will be a little plastic pouch stuck onto the top or side of the battery with the vent tube and line extender in it.
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