Have a look at RealOEM (copy of the BMW parts system up to Dec 2019), and put the last 7 characters of your VIN into the ‘Serial Number’ box. That will pull up your version. The sensors are in the Rear Axle section, Ride Height sub-section. You might be as well to get your build sheet via one of the on line VIN decoders so you can see the option codes that were part of the build. Those codes will help narrow dine exactly which part numbers you need to then find.