I was wondering if anyone knows the spec for a parasitic drain on e30's. I searched alittle but didnt find much, I currently have .08Amps. i know the general spec for most cars is .05Amps, but my battery dies every other couple of days.
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Parasitic Draw Spec Plz
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80mA is practically nothing. For an example as a comparison, a 3 watt light bulb (like what is in the gauge cluster) running at 12 volts is drawing 250mA. I would say your alternator is bad and that is why your battery is draining. Measure the voltage at the battery with the car running. Should be around 14V. If it's any lower, the alternator is bad.
I'd also just check your battery terminals. They could be corroded causing the battery to not charge. Sometime it's the simple things that cause all the problems.
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I'll be honest with you. If I have a car in the shop with 80mA draw, I am going to look for something. I like to see less than 30mA before I feel like they're ok. Ideally less than 20mA. If you battery doesn't have a cell going out, or something, you should be able to let your car sit for over a month before the battery dies.
Do you know how to pin point where your draw is coming from?
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ya i was thinkin 80mA wasnt too much either, the terminals are clean, and the alternator works, the car will still die with a full battery charge and never being turned on for a couple days.
Im gonna start pullin fuses to see what drops the most, but i need my roommate here since the battery is in the back and fuse box up front.
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hit up http://www.wedophones.com/BMWManualsLead.htm and pick out your ride.
It has all the equipment powered through each fuse.
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Originally posted by Charles325i View PostI was wondering if anyone knows the spec for a parasitic drain on e30's. I searched alittle but didnt find much, I currently have .08Amps. i know the general spec for most cars is .05Amps, but my battery dies every other couple of days.
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