BMW 320i xDrive tire size
The most common factory tire size for the BMW 320i xDrive is 225/45R18, on 12 of the 13 year and trim fits listed. The table lists every year from 2013 to 2018 and the size each trim was built with. Pick your year and trim to see the tires that fit.
BMW 320i xDrive tire sizes by year
| Year | Factory tire size | Trims |
|---|---|---|
| 2018 | 225/45R18load index 91, speed rating V | Base, Sedan |
| 225/45R18 front, 255/40R18 rearload index 91, speed rating Y | Base, Sedan | |
| 225/50R17load index 94, speed rating V | Base, Sedan | |
| 2017 | 225/45R18load index 91, speed rating V | Base, Sedan |
| 225/45R18 front, 255/40R18 rearload index 91, speed rating Y | Base, Sedan | |
| 225/50R17load index 94, speed rating V | Base, Sedan | |
| 2016 | 225/45R18load index 91, speed rating V | Base, Sedan |
| 225/45R18 front, 255/40R18 rearload index 91, speed rating Y | Base, Sedan | |
| 225/50R17load index 94, speed rating V | Base, Sedan | |
| 2015 | 225/45R18load index 91, speed rating V | Base, Sedan |
| 225/45R18 front, 255/40R18 rearload index 91, speed rating Y | Base, Sedan | |
| 225/50R17load index 94, speed rating V | Base, Sedan | |
| 2014 | 225/45R18load index 91, speed rating V | Base, Sedan |
| 225/45R18 front, 255/40R18 rearload index 91, speed rating Y | Base, Sedan | |
| 225/50R17load index 94, speed rating V | Base, Sedan | |
| 2013 | 225/45R18load index 91, speed rating V | Base, Sedan |
| 225/45R18 front, 255/40R18 rear | Sedan, w/M Sport Pkg. | |
| 225/50R17load index 94, speed rating V | Base, Sedan |
Check your own tire
A trim can be sold with more than one wheel size. The size printed on the sidewall of your current tire, or on the placard in the driver's door jamb, is the one your vehicle has.