Service Team here has and is going above and beyond ! See my posts on 2016 535d Collision sensor issue and car I purchased 6 weeks ago from independent dealer in CA. see link below. The team are seeking support from regional BMW manager to have the faulty sensor replaced. Hoping it gets approved as sensor cost is $5,100
https://www.bimmerfest.com/forums/showthread.php?t=133535
https://www.bimmerfest.com/forums/showthread.php?t=133535