Hi there I have a Citroen Picassso year 2000 central locking playing up the locking mechanism became loose inside door drivers side a few months ago I sorted that but now central locking playing up if I try with the fob it doesn't work it locks and then unlocks straight away, lock the car with...

Hi, can someone tell me if I'll need a code for when I put this in my Picasso and what it is please. Numbers on sticker are: T0A199 PROD NO: FD0501490073572 VDO RD3-00 VDACLF10073572 REF CITROEN: 96 443 209 7700 VDL0073572 Thanks in advance.