2015 Audi S4 Bolt Pattern & Tire Size
The 2015 Audi S4 OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2015 Audi S4 has a 5x112 bolt pattern, an OEM tire size of 245/40R18, and a 66.5mm center bore.
Other years of the Audi S4
2015 Audi S4 Engine & Trim Levels
Detailed tire and wheel breakdown for the 2015 Audi S4
Tire geometry â 245/40R18
The 245/40R18 fitted to the 2015 Audi S4 has a section width of 245mm and an aspect ratio of 40%, mounted on a 18-inch rim. That gives a sidewall height of 98.0mm (3.86") and an overall outside diameter of 653.2mm (25.72"). At highway speed this tire completes roughly 487 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 Audi S4 while keeping the speedometer accurate, target a 255/33R19 (plus-one). For a softer ride or winter setup, a 235/47R17 (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 Audi S4 uses a 5x112 bolt pattern with a 66.5mm hub bore. Safe rim width range for the OEM tire is 8.0J â 9.0J, and offsets in the ET42 â ET52 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2015 Audi S4 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
| Engine & Trim | Tire Size | Rim Size | Offset (ET) | |
|---|---|---|---|---|
| 3.0 TFSI V6 Quattro | 18x8.5J | ET47 |
Frequently Asked Questions
What tire size does the 2015 Audi S4 3.0 TFSI V6 Quattro use?
The 2015 Audi S4 3.0 TFSI V6 Quattro uses 245/40R18 tires as standard equipment.
What is the bolt pattern of the 2015 Audi S4?
The 2015 Audi S4 has a 5x112 bolt pattern with a center bore of 66.5mm.
What is the wheel offset of the 2015 Audi S4?
The 2015 Audi S4 has a wheel offset of ET47.
Other Vehicles with 5x112 Bolt Pattern
The following vehicles share the same 5x112 bolt pattern as the 2015 Audi S4, making wheel interchangeability possible (verify offset and center bore before swapping).