2015 BMW 4 Series Bolt Pattern & Tire Size
The 2015 BMW 4 Series OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2015 BMW 4 Series has a 5x120 bolt pattern, an OEM tire size of 225/50R17, and a 72.6mm center bore.
Other years of the BMW 4 Series
2015 BMW 4 Series Engine & Trim Levels
Detailed tire and wheel breakdown for the 2015 BMW 4 Series
Tire geometry â 225/50R17
The 225/50R17 fitted to the 2015 BMW 4 Series has a section width of 225mm and an aspect ratio of 50%, mounted on a 17-inch rim. That gives a sidewall height of 112.5mm (4.43") and an overall outside diameter of 656.8mm (25.86"). At highway speed this tire completes roughly 485 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2015 BMW 4 Series while keeping the speedometer accurate, target a 235/42R18 (plus-one). For a softer ride or winter setup, a 215/58R16 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.
Wheel fitment specs
The 2015 BMW 4 Series uses a 5x120 bolt pattern with a 72.6mm hub bore. Safe rim width range for the OEM tire is 7.0J â 8.0J, and offsets in the ET32 â ET42 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2015 BMW 4 Series is printed on the driver-side door jamb sticker â always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.
OEM Wheel & Tire Specs
Frequently Asked Questions
What tire size does the 2015 BMW 4 Series 420i/428i use?
The 2015 BMW 4 Series 420i/428i uses 225/50R17 tires as standard equipment.
What tire size does the 2015 BMW 4 Series 435i/440i M-Sport use?
The 2015 BMW 4 Series 435i/440i M-Sport uses 225/40R19 tires as standard equipment.
What is the bolt pattern of the 2015 BMW 4 Series?
The 2015 BMW 4 Series has a 5x120 bolt pattern with a center bore of 72.6mm.
What is the wheel offset of the 2015 BMW 4 Series?
The 2015 BMW 4 Series has a wheel offset of ET37.
Other Vehicles with 5x120 Bolt Pattern
The following vehicles share the same 5x120 bolt pattern as the 2015 BMW 4 Series, making wheel interchangeability possible (verify offset and center bore before swapping).