[Avulon]

There are three main parts to the key case, the front (with the buttons), the back (which importantly holds the RFID chip without which your car won't start!), and the blade holder. The blade holder is a small plastic piece with a slot for the blade and also a hole through which a roll pin goes through the holder and blade together to hold them together. The blade holder clips into the case front with a levering action parallel with the wide plane of the key blade.


If you hold the key 'flat' with buttons down facing and then try to 'bend' the key as if you'd be moving the join between blade and case away from you is IIRC the right motion. this can be easier if the blade is held in a vice horizontally with the case nearly up to the side of the jaws, A wide flat screwdriver can then be used to impart careful leverage.


Depending on the condition post removal you may be able to re-use the blade carrier, (you can always try it in the new case and see if it cllips in solid enough). If not, then you'll have to drift out the roll pin and use the blade carrier from the new case.



Note what I said earlier about the back - don't forget to either transfer the RFID chip to the new case back or (simpler) use the old back on the new case. You'll obviously also need to transfer the remote locking circuit board.