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  #1  
Old 01-19-2007, 09:17 PM
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Unhappy I think I just destroyed my key

Here's my ordeal...
Been outta town for like 10 days. Today I wanted to start the car and it didn't start. Called my technician, he said it's the battery. He came over and jumped the car.
So far so good...the key that I tried to start the car with is not working anymore. It unlocks the car and it turns into position 2, but it does not start the car. The technician said that this has happened to him before and that I "fried" or unprogrammed my key.
I used the second (working) key to start the car, then turned it off and then used the "broken" key right away to start it and it started. But, if I wait about 20 seconds or so, I guess the immobilzer kicks in or something and the car does not start with the "broken" key.
My question, is there a way to fix this or I just lost $200 (the cost of a new key from the $tealer)?
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Old 01-19-2007, 10:11 PM
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Maybe your Car battery needs to be replaced?

Try reprogramming your key first:

http://www.xoutpost.com/articles/x5/e...ob-bmw-x5.html
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  #3  
Old 01-20-2007, 12:24 AM
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The battery recharged after I drove for about 15 miles on the freeway.
I forgot to mention that I already tried reprogamming the key and apparently this procedure is only for unlocking/locking the car.
Inside the key there must be another chip to turn off the immobilizer.
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Old 01-20-2007, 01:59 PM
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You still should try to have the dealer reprogram the key. If they can't do it, then just walk over to the parts department to order up a new one.
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Old 01-20-2007, 02:43 PM
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the real question is, do you need the second key?
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  #6  
Old 01-20-2007, 07:56 PM
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The dealer cannot reprogram it, asked them today. Of course they suggest ordering a new one. They said chip inside is fried.

Mrkbbd, good point...since it opens and locks the car, I guess I don't need a second master key. I had to order one before, because I locked my original in, then had to break the window to open the car, stuff like that.
Anyway, everyone beware, if you have a dead battery, be very careful, DO NOT try to start the car unless you jump it. $200 will go down the drain very easily.
This is so weak...BMW has to keep the "donations" coming.
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