Question about 2001 BMW 330

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Starting issues i've had my bmw 330xi for 6months and it's now it's having troubles starting first i was told it was an alternator which drained my battery i then replaced my alternator and bought a new battery and the car worked for about 2 weeks and now it wont start the only way to start it is to jump it. i don't want to drain another battery so i don't move it. the lights in the dash come on and stay lit longer than usual. i don't know what the problem could be any help is well apreciated.

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A common fault for flat batteries reguardless of car band is the boot light.check that the boot light is turning off when the boot lid is closed.

Posted on Feb 10, 2009

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Posted on Jan 02, 2017

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Something is draining the battery on our 2002 bmw z 3. The battery and alternator checks out good. What could be the problem??


The problem is that an electrical component in the BMW that should be dormant when the vehicle is shut down is actively drawing power.
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My 2006 BMW 330xi idles hight when driving?


How high? Do you have a check engine light on?

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I have a bmw 3 series and have been having trouble with the car not starting. it has had a new battery and last week a new alternator but now seems to be worse


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1 Answer

How do you pair a phone to a bmw 330xi


go to verizon, by two phones, now you have a pair. Then you can call yourself and you have paired the phones to any car, not just a 330xi.

Most states have outlawed phone usage anyway. So that was you in the slow lane weaving all over the place trying to text, use the phone, call the wifes girlfriend at the office.

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1 Answer

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3 Answers

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Actually a 2008 650i -- battery trouble?


Sounds like an alternator problem. A bad diode can drain the battery(feed back). Replace alternator and if battery is more than 3 years old replace it too. It takes 20 amps just to power the fuel injection. The Bosch alternator should be rated at 100 amps or better. Low output will affect everything you described. Perform an OBDII scan for a look at stored faults. Let the scan be a guide to any other problems that may be present

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