Hi all I am new to this site. I have a 04 plate z 4 2.2 which I have owned for 3 years. The car has recently developed a problem with the remote central locking. I am unable to unlock the drivers side door using the remote key, it unlocks if I do it manually. However it locks using the remote very puzzling. The passenger door locks and unlocks ok with the remote. Has anyone got any ideas ???