2014 BMW X3 with the central locking and proximity smart key not working. These particular vehicles have seven interior aerials to control the locking system and thanks to a previous Repair solution uploaded by Daniel Armer we were able to trace the problem back to water ingress. TaT members can read the full Repair solution at https://www.tat.net.au/tatsafact/2899 Join up at www.tat.net.au/social.html to access our Repair solution database. Hi-Bolt | The Automotive Technician