Buttons as in? Are you trying to get the E46 style keys with door unlock and unlock functions?
I dot think it is possible unless the dealer is willing to put a chip from yor car into a different key. Due to te EWS system all the keys have a chip in them and without the car will not start. This is why eBay keys are garbage. Their a waste of money. Ask the dealership if they would be willing to do this.
Let us know because that would be really cool if try say yes.
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