Tire Size Specification
Verified OEM & Service Reference2018 Audi A4 2.0L TFSI (EA888 Gen3 B9) — Tire Size
Recommended interval: Rotate every 5,000–7,500 miles; check cold PSI monthly
Engine / Trim Variant
Factory Tire Size
225/50R17 / 245/40R18 / 245/35R19 / 245/45R18
Quick Purchase
Check verified fitment on Amazon
Technical Specifications
| Front Tire Size | 225/50R17 / 245/40R18 / 245/35R19 / 245/45R18 |
|---|---|
| Rear Tire Size | 225/50R17 / 245/40R18 / 245/35R19 / 245/45R18 |
| Rim / Wheel Size | 17" |
| Matched Trims | 2.0T FWD Premium, 2.0T FWD Premium Plus, 2.0T FWD Prestige |
Compatible Aftermarket Options
Direct OEM cross-references- Buy Michelin / Continental / Pirelli 225/50R17 on AmazonMichelin / Continental / Pirelli225/50R17
Search query: 225/50R17 tire
DIY Fitment & Verification Checklist for 2018 Audi A4
- 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 2018 Audi A4 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 2018 Audi A4?
The primary OEM tire size part number / specification for the 2018 Audi A4 2.0L TFSI (EA888 Gen3 B9) is 225/50R17 / 245/40R18 / 245/35R19 / 245/45R18.
Which aftermarket tire size brands fit the 2018 Audi A4?
Compatible aftermarket options include Michelin / Continental / Pirelli 225/50R17.