damak

Hi to all I am new on this forum an want to upgrade my wife`s car with cruise controll. Since many many tryes it wont work.And slowly i think so it is a specially type of the xsara picasso series , also unpossible without a BSI upgrade. My car is a 2006 1.6 Hdi with ABS without ESP/FAP. I have installed the the cc switch (just the simple version without limiter) Acivated it in BSI/ECU and i think in COM2000. I can check its button ins lexia OK Clutch pedal swtch OK Brake switch OK VF7CH9HXC25835566 10778 But something dont let it activating. I heeard on another forum if i need a sw upgrade of the BSI while just the later modell with FAP supports the CC function ist that right? If yes can i do it at home or do i need a reseller? Any suggestion would be great. Many thanks Sorry for english