Hi hope someone can help?

Just recently purchased 05 plate 1.2 active punto, remote locking keeps unlocking by itself and intermittently does not lock. When using key on drivers side I have to keep key turned to the left and I hear the central locking clicking then locks. The scary thing is I go out the next morning and the 2 doors are unlocked. The car has been back to the garage and a new actuator (think that's what it's called) fitted, however problem still there.

Grateful for any help or advice.

I have a similar issue with my 03 reg Punto Mk2. Sometimes it will unlock within 5 seconds, sometimes it can be a few minutes, other times it is just unlocked in the morning.

Any way to disable the system to it won't unlock?