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post #1 of 38 Old 19th January 2010, 02:37 PM Thread Starter
SepangM5
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High Battery Drain!!!!

When I wake up in the morning my car comes on with a message that says high battery drain. I took it to the mechanic the other day when it couldnt start. He check the alternator and said the voltage was too high. H then check the battery cable wires running from the alternator to the battery. He s aid the grpunding wire wasnt connect. He then recheck the voltage and it was nornmal when the car was off 12.5 then when the car is started its 13.5. I am thinking my alternator is going.
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post #2 of 38 Old 19th January 2010, 03:06 PM
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I get that fault every morning. They says high rate of battery discharge. BMW blamed the satellite tracking alarm system I have fitted.
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post #3 of 38 Old 19th January 2010, 03:37 PM Thread Starter
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post #4 of 38 Old 19th January 2010, 04:38 PM
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Originally Posted by SepangM5 View Post
George how long have you been getting that message?
Since the day I installed the tracking device. Had it installed in April last year.
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post #5 of 38 Old 19th January 2010, 05:09 PM
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I had that also for a while. They replaced my alternator, battery... Finally, they rewired my K40 and it was solved.
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post #6 of 38 Old 19th January 2010, 05:54 PM Thread Starter
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I don't think it's my alternator. Everything works perfectly fine. I don't see any dimming in my navigation screen. All my lights are normal. The message dissapear when I start driving and If I turn the car on and off after running for a while it dissapears.
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post #7 of 38 Old 25th January 2010, 10:20 PM
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I have the same high drain battery problem. This is my third time in the shop. First they blamed it on my hard wired radar detector which I removed. 2nd time they blamed it on my after market day time running light bulbs. Third time which is now my car has been in the shop for 11 days now at crevier bmw. They said it is on a battery draw test ( why should it take this long, i don't know) The latest news I got is that they think its my IPOD TOUCH that is causing the problem and they are trying to say the touch is not supported so they might not do anything about it. Getting pretty upset.
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post #8 of 38 Old 26th January 2010, 07:56 AM
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Originally Posted by HDinMotion View Post
I have the same high drain battery problem. This is my third time in the shop. First they blamed it on my hard wired radar detector which I removed. 2nd time they blamed it on my after market day time running light bulbs. Third time which is now my car has been in the shop for 11 days now at crevier bmw. They said it is on a battery draw test ( why should it take this long, i don't know) The latest news I got is that they think its my IPOD TOUCH that is causing the problem and they are trying to say the touch is not supported so they might not do anything about it. Getting pretty upset.
I am in a similar position. My car is still under warranty and a full service plan. I am trying another dealer next week, I am sure its the battery as its already five years old.
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post #9 of 38 Old 26th January 2010, 09:39 AM
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Strange. Mine has been in the dealers for a few days now and they have NO idea. I was getting the problem every morning and then after NOT driving the car for a day I had a flat battery. They have NO idea what the problem is, just that the draw is very high but they don't know where to?! I'd love to see if anyone here has an answer to this.
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post #10 of 38 Old 26th January 2010, 04:41 PM Thread Starter
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I got a new battery in my car its not even a month yet. I know when my car was in the accident they didn't connect the ground wires together properly. Maybe my alternator is going but it shows no sign of that. Because when i got it out the shop 2 weeks later the car wouldnt start so I took it to my bmw mechanic and he fixed the issue. He connect the voltage meter and it was reading fine. The voltage was 12.9 when the car sitting and when it started it was 13.5. I am still getting the message.
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