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 Posted: May 8, 2019 08:01AM
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US
I assume you mean you ruined the phone batteries, not the car battery. In that case the most likely culprit would be the cheap cigarette lighter adapter you got for 3 bucks at the quickie-mart. If you're using a decent charger/adapter you shouldn't have that issue. 

 Posted: May 8, 2019 05:56AM
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well..  it is a BMW ( MINI) what did you expect? bc

 Posted: May 8, 2019 05:32AM
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Quote:
Originally Posted by slminicooper
I bought a 2007 Mini Cooper Base used.  I have all sorts of weird problems.  I have plugged into the cigarette lighter to charge my phone  and ruined 2 batteries.  (Won't do that again.)

Also, sensors come on, go off, come back, then go off again forever.

Would that be an electrical problem?  And does anyone know how I might diagnose/fix it?
I'm not sure how a phone charger can ruin the battery... Even if you left them connected, the cigarette lighter should become unpowered when you shut off the car....

As for the sensors - what sensors?

This can be an electrical issue, or perhaps the computer software has been corrupted (not unheard of). If this is the case, a reflash of the software by the dealer 'may' correct this...

 Posted: May 8, 2019 04:17AM
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I bought a 2007 Mini Cooper Base used.  I have all sorts of weird problems.  I have plugged into the cigarette lighter to charge my phone  and ruined 2 batteries.  (Won't do that again.)

Also, sensors come on, go off, come back, then go off again forever.

Would that be an electrical problem?  And does anyone know how I might diagnose/fix it?