2025 Audi A4 35 TDI / 40 TDI (2.0)
The 2025 Audi A4 35 TDI / 40 TDI (2.0) tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2025 Audi A4
Tire geometry â 225/50R17
The 225/50R17 fitted to the 2025 Audi A4 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 2025 Audi A4 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 2025 Audi A4 uses a 5x112 bolt pattern with a 66.5mm hub bore. Safe rim width range for the OEM tire is 7.0J â 8.0J, and offsets in the ET33 â ET43 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2025 Audi A4 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%.
Fitment Specifications
| Engine & Trim | Tire Size | Rim Size | Offset (ET) |
|---|---|---|---|
| 35 TDI / 40 TDI (2.0) | 225/50R17 | 17" x 7.5 | ET38 |
Frequently Asked Questions
What tire size does the 2025 Audi A4 35 TDI / 40 TDI (2.0) use?
The 2025 Audi A4 35 TDI / 40 TDI (2.0) uses 225/50R17 tires as standard equipment.
What is the bolt pattern of the 2025 Audi A4 35 TDI / 40 TDI (2.0)?
The 2025 Audi A4 35 TDI / 40 TDI (2.0) has a 5x112 bolt pattern with a center bore of 66.5mm.
What is the wheel offset of the 2025 Audi A4 35 TDI / 40 TDI (2.0)?
The 2025 Audi A4 35 TDI / 40 TDI (2.0) has a wheel offset of ETET38.