Whenever I unlock my Fabia with the key (no remote), I go and open the boot and its still locked and have to use the boot release to unlock - the central locking does unlock the boot but only when it feels like it.

On the first click it should open ONLY the drivers door, to open the boot you need to use the boot release button. A second click will open the rest of the doors AND allow the boot to be opened.

My car doesnt have remote central locking.

First turn of the key in the lock to unlock will usually unlock the drivers door, a second turn of the key will unlock all the other doors and the boot.

First turn unlocks all doors and sometimes the boot