The left rear door on my Cubic doesn't lock and unlock with the central locking. I've had the motor out and I can hear it click but there is no movement on the locking cable. I suspect it's just seized inside but I'm scared of taking it to bits in case a load of springs pop out and I can't reassemble it. Has anyone had one in bits before? There is a spare on ebay but it's for a Cube and the child lock is in a different position. Does anyone know if it's the same part as another model? It's got Renault written on it.