Recently bought a 2005 X3 for the wife, great little car (first X3, but 5th BMW being a E46 330d lover).
Just went to use the spare key (an original so i'm told, but never used by the looks of it) and it won't start the car. Unlocks doors etc OK though. Have tried the reporgamming steps (hold unlock, press lock 3 times etc) but as I understand that only re-sets the remote door lock.
What I think I need is the EWS re-programming. I called the dealer, they seem to be very sketchy about it all - "Might need a new key, £150. Then programming on top, £85". Seems ridiculous, plus i'm sure a new key comes already programmed for your car (in terms of EWS).
Anyway, I'm looking for options to try fixing my existing key. Are there any places that do EWS programing or offer key services in general for more sensible rates (I'm in kent)? Can I do it myself with an EWS1/2/3/3+ programmer (they seem to be available on deal extreme and other sites for under $100).
The key does start the car if it used immediately after the key that works. I'm assuming the immobilizer is still disabled for a number of secons after removing a good key.
Thanks for any advice!