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reynot 02-07-2013 09:57 AM

new battery
Hello, i have a 2005 120d and for personal reasons I haven't been able to use it for almost 2 years. Its parked in my garage and I think its time to pull it back together and start using it again. My 1st concern is the battery, it is obviously dead by now. My question is, do I really have to buy the original battery at the dealer (costs US$500) or can I just buy a simple equivalent battery with same specs (voltage/amperage)?

This is one of many questions Ill have and I know you guys will help me through this since last time I used my car it was under warranty so I had nothing to worry about, now Im on my own =(

Thx a lot

SilverX3 02-07-2013 10:44 AM

After market battery s $160 and works just fine... Google for compatible one

reynot 02-07-2013 02:53 PM

Tyvm, I just thought it had to be some special kind of battery designed for bmw, ill be getting a standard battery and let you guys know how it goes. Thx for helping

1zamboni 02-07-2013 08:48 PM

If you can find a way to register then you won't need to get a BMW battery.

mr_bean 02-08-2013 03:19 AM

Make sure the new battery has the same electrolyte as the old one (liquid instead of gel) and that it has the same amp-hour rating (Ah). After installing it, you'll need to have the battery management system reset.

codog2 02-08-2013 03:23 AM

Not sure about diesels but here in the us the gas engines don't need to have the battery registered. At least the 2005s

SilverX3 02-08-2013 11:35 AM

can drive around without battery registration till next service add extra 1/2 hour job

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