Tire Size Specification
Verified OEM & Service Reference2025 Audi A6 55 TFSI 3.0L V6 Turbo (C8) — Tire Size
Recommended interval: Rotate every 5,000–7,500 miles; check cold PSI monthly
Engine / Trim Variant
Factory Tire Size
245/45R20 / 245/45R19 / 255/40R20 / 255/35R21
Quick Purchase
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Technical Specifications
| Front Tire Size | 245/45R20 / 245/45R19 / 255/40R20 / 255/35R21 |
|---|---|
| Rear Tire Size | 245/45R20 / 245/45R19 / 255/40R20 / 255/35R21 |
| Rim / Wheel Size | 20" |
| Matched Trims | Allroad, Premium, Premium Plus |
Compatible Aftermarket Options
Direct OEM cross-references- Buy Michelin / Continental / Pirelli 245/45R20 on AmazonMichelin / Continental / Pirelli245/45R20
Search query: 245/45R20 tire
Tire Size Fitment by Engine / Trim (2025 Audi A6)
| Engine / Trim | Oil Spec & Capacity | OEM Oil Filter |
|---|---|---|
| 45 TFSI (2.0L Turbo I4) | 0W-20 • 5.7 qt (5.4L) | 06L-115-562-B |
| 55 TFSI (3.0L V6 Turbo) | 0W-20 • 7.4 qt (7.0L) | 06M-198-405-F |
DIY Fitment & Verification Checklist for 2025 Audi A6
- Confirm your engine code or trim variant above before ordering parts, as mid-year production changes can affect tire size fitment.
- When purchasing OEM or aftermarket brands (Motorcraft, ACDelco, Mopar, Wix, Fram, Mobil 1, Bosch, NGK), cross-check the Amazon Garage Confirmed Fit badge with your 17-digit VIN.
- Always consult your 2025 Audi A6 owner's manual for exact torque specs and fluid service intervals.
Sources: NHTSA vPIC & OEM Service SpecificationsReport an inaccurate spec or part number
Frequently Asked Questions
What is the OEM tire size specification for a 2025 Audi A6?
The primary OEM tire size part number / specification for the 2025 Audi A6 55 TFSI 3.0L V6 Turbo (C8) is 245/45R20 / 245/45R19 / 255/40R20 / 255/35R21.
Which aftermarket tire size brands fit the 2025 Audi A6?
Compatible aftermarket options include Michelin / Continental / Pirelli 245/45R20.