With the key fob remotes most of the time the housing brakes but the electronics still work fine and Volvo only sells the entire remote and not the housing separately. Plus if you purchase a new key fob remote from Volvo you also need to have programming to mate the new remote up with your car. This is typically an expensive replacement. This cover will work with all three button remotes. Disassembly is easy. Simply pop open the remove with a screw to separate the housing. Remove the electronics and place them in the new key fob cover and join the two halves. While you have your remote disassembled, it's also a good time to replace the battery.