[Bostoniabemmer]

Can someone help me? Just came out of bmw dealer , the same thing thats in the pic happened to, i have a 335 2011 sedan, they were trying to charge me like $400 just for the part it self and he said that They dont sell it without the sensor, I dont even know if im supposed to drive like that, im also running with dinan stage 2 , can anyone help me please