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      07-03-2014, 12:09 AM   #1
KwlAznKid
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coding key fob

does anyone know if the key fob itself is reprogrammable? ie: if i buy a used one or clean one off ebay can i have someone who knows coding to code it to turn my car on and unlock it? i know obviously it won't have the metal key part but i just need it to unlock the car and turn the engine on. will it work?
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      07-03-2014, 02:07 AM   #2
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Originally Posted by KwlAznKid
does anyone know if the key fob itself is reprogrammable? ie: if i buy a used one or clean one off ebay can i have someone who knows coding to code it to turn my car on and unlock it? i know obviously it won't have the metal key part but i just need it to unlock the car and turn the engine on. will it work?
No. These fobs are one time programmable for a partnership with the vehicles CAS module. In theory it is possible but you would need to know the ISN for the used fob by extracting it from the used keys CAS unit.

So unless you have some special tools don't waste your money. I know there are lots on eBay.

Instead get a virgin key and take it to someone who offers key programming. Or do it yourself if you want to invest in the software / cables.
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      07-03-2014, 11:13 AM   #3
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Originally Posted by Sensible_ View Post
No. These fobs are one time programmable for a partnership with the vehicles CAS module. In theory it is possible but you would need to know the ISN for the used fob by extracting it from the used keys CAS unit.

So unless you have some special tools don't waste your money. I know there are lots on eBay.

Instead get a virgin key and take it to someone who offers key programming. Or do it yourself if you want to invest in the software / cables.
thanks for the reply! so as long as it's a virgin key I can get someone to program it right? so for example like this one: http://www.ebay.com/itm/BRAND-NEW-VI...1c3181&vxp=mtr


if that's he case does anyone here know how to program keys? will pay $ of course!
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      07-03-2014, 12:12 PM   #4
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Yes, that fob appears to be virgin. Bare in mind it will be a Chinese copy, not as good quality as OEM. However I've used similar fobs before and a year later I've had no problems.

Just make sure the frequency is a match. That one is 315mhz.

You won find many people advertising key programming for 2 reasons:

1. A good quality kit is expensive.
2. Key programming is linked my an increase in BMW thefts via this very method.

I used to advertise this but interest was like 0 so I sold the kit.
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