I have a Mk 6 Fiesta (Zetec, Climate). As far as people have told me, it is capable of remote central locking, but just didn't come with a remote key when I bought it second hand (it was only supplied with the standard 'passive' engine/door lock/immobiliser key (with a blue 'chip' in it).
If I wanted to add RCL, is it easy/cheap to do? Also, how might I check once and for all whether it actually has the ability to lock remotely? The lights flash when I lock it manually with the engine key, if that means anything. It also has a boot popper button in the dashboard, and I'm 90% sure it has an immobiliser.