Re: alfa 146 ti central locking problem
sounds like one of the door motors is not working on the front doors, look at the locking pins on the inside (the ones you would push down manually in a non central locking car if that makes sense). The one not moving is the faulty one. The things cycle round, eg the drivers door unlocks but the front passenger does not, the system then thinks the passenger door has been locked and locks everything back up again. Most annoying, cost of part is approc £70 IIRC and DIY able.