coding bmw e87 120d 2005

[Mr.Potato]

thanks im just slowly figuring it out myself and rooting the  internet but ive got most of the options done what i needed just one pissing me off the seat occupancy mat ive coded it out but the error still there i want to unplug the sensor and see if it works but i cant find it lol

I have done this a couple of times. I had to unplug the sensor BEFORE I coded it out. 
Otherwise it will not accept the coding, just put the parameter back to its default when you are done. 

I am 99% sure this will fix your issue regarding the occupancy fault.