Hi posted last week about a bsd system on my 18month old mazda cx5,with 3500 on clock, took it to the dealer he told me slight damage I had done to my right rear bumper when I scraped it on my drive wall had damaged the radar sense, so it would not be a warrenty claim and would cost me £1020, I said okay, but was making trips to hospital and would take in in in a couple of weeks,then this happen I turned on my blue tooth which had never been activated mainly because being 75 yrs old I never felt happy using phone in car, after 4 weeks of the radar sensor s cutting out they are working fine, I have no idea how this has happened but saved me £1000 just thought I would tell all of you in case it happens to any of you