Wow...a 2025 already..lol....you must have hitched a ride on a time machine!!.....I have a 2015 450i so hope they are still similiar, but need to know...can yours fly?? Just kidding....seriously I dont think they have changed much... The speed sensor has always been a small issue from my research. On mine the speed sensor is located down beside the dipstick for checking the oil. Therevis a single screw holding it in. Snug fit in the hole so a little twisting, turning to pull it out. Sometimes they can be cleaned andvthey will work again for a while. Be sure the electrical connection is clean and makes good contact as this is an area where crud can collect.If you have to buy a new one, they were not that expensive, I paid around 50 bucks for mine a couple years back. let us know what you find !!
