This is what you need for $48.86 (add something to get the order over $49 for free shipping)https://www.fcpeuro.com/products/bmw...or-s119445001zLocation of the sensorshttps://www.realoem.com/bmw/enUS/sho...65#13627525014Personally, I would replace both. at 2:50 he explains where t...