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10-04-2012, 02:39 AM | #1 |
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Car won't turn on! HELP!!!
My 08 e92 M3 has been acting weird lately. It's needed a jump start a few days ago and I took it for a nice 30 min drive to recharge the battery after. 2 days later the battery died again and I got a jump start from my neighbor. This morning the car wouldn't start again and I tried getting a jump start, but that didn't work either. The car just goes "click" once and won't start. & I don't believe it's the battery as all the ignition stuff works and the headlights are able to be turned on. Please help??
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10-04-2012, 02:49 AM | #2 |
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Lights can still turn on even with a low battery. I would suggest taking the battery somewhere and replacing it. They can also test the battery if you have time for that. If a battery doesn't solvethe problem, look into an alternator. But, since you were able to drive for 30 min, i would think the alternator is fine.
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10-04-2012, 03:10 AM | #3 |
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The battery is probably knackered - go for an OEM or OEM pattern replacement.
You may well have to have a BMW dealer to code in the replacement...at least you would in the UK (don't know in the USA) as we use an energy recovery system that requires a particular type of battery that can take a high recharge rate - the battery monitor system also accounts for loss of battery efficiency with time, which requires a reset (recode) when a new battery is fitted. |
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10-04-2012, 06:26 AM | #5 |
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New battery.
Either that or something is wrong with the alternator/IBS system. 9 times out of 10 - battery.
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10-04-2012, 07:31 AM | #6 |
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battery.
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10-04-2012, 08:42 AM | #7 |
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Drives: BPMsport 2012 E92 M3
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+3 on the battery.
FYI it takes a lot more juice to crank a motor than to run the headlights. |
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10-04-2012, 10:18 AM | #8 |
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And I don't think a 30 minute drive would help much recharging the battery if she's already failing.
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10-04-2012, 10:24 AM | #9 |
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10-04-2012, 12:09 PM | #10 |
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Definitely the battery but if your unsure its the battery take it somewhere and have them check out how many amps its putting out. Chances are its probably around 2 or 3 and should be putting out double digits. I just had the same thing happen to me on a non BMW I got the oil changed and when the battery was tested it was putting out 3 amps. Decided not to change not to change it. Two days later went to start the car and it wouldn't start. Everything else would come on.
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10-05-2012, 10:37 PM | #13 |
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Hooked up the jumper cables for 5 mins or so and was able to start the car right up today. So it likely is the battery dying from the short trips I normally take. Hooked up the car to a CTEK 7002 to possible charge & recondition the battery.
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