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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 01-23-2009, 07:50 PM
tysbmw tysbmw is offline
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My battery is dead

I just came back from a deployment and my battery is dead. I called BMW and they said I need a new battery and the battery need to be program to work with the car. Is that the truth.???. They told me a new battery will cost $ 300.00. My question is, has anyone had a dead battery and replaced it and if so did you used a factory battery or aftermarket and did you need to get the battery programed by BMW.
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  #2  
Old 01-23-2009, 08:21 PM
johndade johndade is offline
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300 sounds bout right and yes you do have to have it programmed.Did you try jumping it though cause it wasnt being used for a long time?
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  #3  
Old 01-23-2009, 10:13 PM
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harjothundal harjothundal is offline
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i would try to charge it from the contacts in the engine bay... when replacing the battery, you are required to reprogram it, though sometimes you can get away without programming and still have the vehicle function ok... if the car hadn't been driven for a long time, then a dead battery is normal... try to give it a good charge and see if that helps.... if not, you can buy an aftermarket battery... do a search on the forum, you can get the exact battery that bmw uses, under a different name for much cheaper...
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  #4  
Old 01-24-2009, 11:03 AM
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id try to jump it first if it starts drive it around for a bit so it can charge.
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  #5  
Old 01-24-2009, 03:27 PM
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unirok unirok is offline
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If it does turn out to be the battery $300.00 installed would be an awesome price from the Dealer.
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  #6  
Old 01-24-2009, 10:46 PM
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ImolaMMM ImolaMMM is offline
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Quote:
Originally Posted by tysbmw View Post
I just came back from a deployment and my battery is dead. I called BMW and they said I need a new battery and the battery need to be program to work with the car. Is that the truth.???. They told me a new battery will cost $ 300.00. My question is, has anyone had a dead battery and replaced it and if so did you used a factory battery or aftermarket and did you need to get the battery programed by BMW.
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  #7  
Old 01-25-2009, 10:58 AM
tysbmw tysbmw is offline
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I try to jump it a few times and I notice that when I connect the jumper cables and try to start it all i hear is a clicking noise and when I press the button to close the sunroof or even open the trunk, it does not work. so I have to used the key to open the trunk. And when I unplug the jumper cables all the power goes away. So Like I mention. when the jumper cable are plug in i get some power in the car but I cannot close the sunroof or open the trunk. The car make a clicking noise when I try to start it. The car is in the garage so i don't mind the trunk being open.
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  #8  
Old 01-25-2009, 11:00 AM
tysbmw tysbmw is offline
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thanks for the welcome back.
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  #9  
Old 01-25-2009, 11:14 AM
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make sure your jumper cables are good and thick enough to handle the power.. I jumped my car a few times and when i used crappy cables it would not jump but only make clicking noises. When i swtiched to bigger better cables the car started. Also if you are using good cables try to jump it direct from the battery in the trunk..
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  #10  
Old 01-25-2009, 11:41 AM
johndade johndade is offline
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Din that was something i was wondering about yesterday is it safe to jump directly from battery? I knew someone with an audi that got jumped like that and ended up messing up some electrical unit.
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  #11  
Old 01-25-2009, 01:55 PM
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I dont think its any differnt than jumping from the points under the hood. well i had to jump my car for about a week directly from the battery while i was waiting to bring it into the dealer. I had no problems... I would make sure your panels are off and make sure you dont short anything out by touching any wires or things like that.
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  #12  
Old 01-25-2009, 02:30 PM
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csmeance csmeance is offline
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Originally Posted by johndade View Post
Din that was something i was wondering about yesterday is it safe to jump directly from battery? I knew someone with an audi that got jumped like that and ended up messing up some electrical unit.
they probably reversed the terminals or had loose contact points.
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  #13  
Old 01-25-2009, 04:12 PM
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harjothundal harjothundal is offline
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i wuold be careful jumping directly from the battery... i would do it from the contacts in the engine bay... they go through some sort of monitoring circuit to ensure there is no damage to any components in teh car... also, have you tried to hook up a charger and leave it running overnight? usually, when you jump a car, the battery still has some juice... in this case, your batt is dead, and the 7 requires a great load of power... if you havnt tried yet, i would leave it charging for a while to see if it helps... then jump it...
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  #14  
Old 01-26-2009, 11:33 AM
Allzwell Allzwell is offline
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I would agree, try a slow charge to bring the battery back rather than a jump.
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