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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Help please



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      06-23-2012, 02:40 PM   #1
KillaE90
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Help please

So my car wouldnt turn on in the morning so i turned it on with a battery jumper. So i drove it and everything is fine and come home. Try to drive it a hour later and its not turning on again. What can it be?
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      06-23-2012, 03:14 PM   #2
triger716
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Charge the battery. Chances are just driving it didn't recharge the battery enough to start it again. You may also need a new battery. You could also have a problem with your alternator which caused the dead battery to begin with.
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      06-23-2012, 03:17 PM   #3
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Quote:
Originally Posted by triger716
Charge the battery. Chances are just driving it didn't recharge the battery enough to start it again. You may also need a new battery. You could also have a problem with your alternator which caused the dead battery to begin with.
Thanks for your response. But i dont even know why it died in the first place. It died over night. If i scan it would the error show up?
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      06-23-2012, 03:21 PM   #4
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It could be a dead battery, but I'd charge it again to see if it will hold a charge. If not, get a new battery.
If problem persists, probably your alternator.
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      06-23-2012, 03:26 PM   #5
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Quote:
Originally Posted by Masterkush
It could be a dead battery, but I'd charge it again to see if it will hold a charge. If not, get a new battery.
If problem persists, probably your alternator.
Thanks !!
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      06-23-2012, 03:34 PM   #6
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Quote:
Originally Posted by triger716 View Post
Charge the battery. Chances are just driving it didn't recharge the battery enough to start it again. You may also need a new battery. You could also have a problem with your alternator which caused the dead battery to begin with.
I don't know if it could be the alternator because if the alternator is broke then no power to the car or battery recharge. When the battery and altenator is dead then no power at all. Sounds more like the battery is past the point.
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      06-23-2012, 03:42 PM   #7
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You have a 06 right? Most likely the battery. If it's the original battery It's most likely your problem if not it's still a good idea to change it.
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      06-23-2012, 03:42 PM   #8
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Quote:
Originally Posted by CamelBiscuit
Quote:
Originally Posted by triger716 View Post
Charge the battery. Chances are just driving it didn't recharge the battery enough to start it again. You may also need a new battery. You could also have a problem with your alternator which caused the dead battery to begin with.
I don't know if it could be the alternator because if the alternator is broke then no power to the car or battery recharge. When the battery and altenator is dead then no power at all. Sounds more like the battery is past the point.
So maybe the battery you saying?
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      06-23-2012, 03:50 PM   #9
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Yup. That's just my thoughts.
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      06-23-2012, 04:01 PM   #10
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Quote:
Originally Posted by CamelBiscuit
Yup. That's just my thoughts.
You right, my brother just did a test and its the battery
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      06-23-2012, 04:29 PM   #11
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dont forget to get it programmed at the dealer with new battery....
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      06-23-2012, 05:22 PM   #12
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Quote:
Originally Posted by Kolyan2k
dont forget to get it programmed at the dealer with new battery....
What would happen if not?
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      06-23-2012, 06:16 PM   #13
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Quote:
Originally Posted by KillaE90 View Post
What would happen if not?
If you have the BT tool you can do it yourself(you said you checked for codes earlier?) The alternator will think its the old battery and charge as though it is a old dying battery and it will kill your new battery FAST! maybe get a month out of it.
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      06-23-2012, 06:16 PM   #14
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Quote:
Originally Posted by KillaE90 View Post
What would happen if not?
search. there is a big thread about this....it can catch on fire and burn all cables or something.
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      06-23-2012, 10:04 PM   #15
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So i changed the battery and parked at home. Left with a friend in his car and came back to the car being dead again. My mother said the car alarm went off and eventually stopped. Any idea what the hell is going on?
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