Confirm Tire SizeWhere can I find my tire size?
Shopping for tires? Select tire size to proceed.
2003 BMW 525i Base
BMW equips your vehicle with more than one possible size during production.
Please select the size installed on your vehicle from the choices below.
Original Equipment Wheel Diameter: 16"
225/55R16Original Equipment Wheel Diameter: 17"
235/45ZR17