We may have found other answers which could help you.
Click here for Berlingo Van 19Citroen dispatch rear door lock issue?
Servo ?
Battery drain (or alternator or electrics?) on Citroen Berlingo 2008?
Citroen Berlingo 1.6 hdi will not start with key?
How can I fix my central locking?
central door locking on Citroen Dispatch van not working properly?