CHANDLER'SFORD

Does anyone know where I can buy a second hand ecu for the central locking on my 2002 1.9 tdi Galaxy ? I think its a Bosch - model pa66 gf 15 - also got markings on it as follows H02/SD02/C01 - removed itas it seems blown due to flooding in the under seat well - drivers side solenoid was burnt out due to constantly working and we thought that changing the ecu would sort it out - bizarrely the central locking seems to work still though but the drivers door wont lock. Any thoughts where to get a new ecu anyone please ?