[MattyV8]

Finally replaced my key fob case - total cost for new case with gaskets, battery and screws plus little audi badge on front - £9 delivered. The key doesn't feel cheap as I thought and actually looks oem.

Really easy to do, take the badge off, unscrew the screw then pull apart. There are 2 little screws at the bottom which need to be removed to get access to the circuit board. Put the new battery in and put back together.

I used my old key with the new spring and button so still looks new.

Pressed unlock and worked perfectly. Car sensed keyless features too. I put it in the ignition and turned on and off just to be sure.