The Mégane II Owners' Club

basically my AFM was showing up as weak on the diagnostics so i've finally changed it. problem i have is that the problems i had before i changed it are still there. i can live with them but thats not the point. do i need to clear them or should the ECU pick up that the AFM is now giving the correct readings?

i dont want to disconnect the battery either as i dont know my radio code etc.