2023 Audi A4 45 TFSI Quattro
The 2023 Audi A4 45 TFSI Quattro tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2023 Audi A4
Tire geometry â 245/40R18
The 245/40R18 fitted to the 2023 Audi A4 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 2023 Audi A4 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 2023 Audi A4 uses a 5x112 bolt pattern with a 66.5mm hub bore. Safe rim width range for the OEM tire is 7.5J â 8.5J, and offsets in the ET35 â ET45 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2023 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) |
|---|---|---|---|
| 45 TFSI Quattro | 245/40R18 | 18" x 8.0 | ET40 |
Frequently Asked Questions
What tire size does the 2023 Audi A4 45 TFSI Quattro use?
The 2023 Audi A4 45 TFSI Quattro uses 245/40R18 tires as standard equipment.
What is the bolt pattern of the 2023 Audi A4 45 TFSI Quattro?
The 2023 Audi A4 45 TFSI Quattro has a 5x112 bolt pattern with a center bore of 66.5mm.
What is the wheel offset of the 2023 Audi A4 45 TFSI Quattro?
The 2023 Audi A4 45 TFSI Quattro has a wheel offset of ETET40.