2019 Audi S4 Wheel Interchange

2019 Audi S4 Wheel Fitment Guide

Known OEM Fitment For 2019 Audi S4

The values below reflect known factory specifications for the 2019 Audi S4. Equipment can vary by trim or package. If anything on your car does not match, confirm against your door placard, owner manual, or your Audi dealer. You can also use the on-page calculator to compare what you have to the specs shown here.

Notes: Factory wheel fasteners and seat style can vary. If your exact fastener type or torque spec is unknown, verify using the owner manual or OEM service information before installation.

How To Use The Wheel Interchange Calculator

The calculator lets you compare a donor wheel and tire to your 2019 Audi S4. It also models custom sizes so you can check clearances before you buy.

• Open the calculator on this page.
• In Wheels from (donor vehicle), enter the wheel and tire you want to try. You can type a vehicle or fill in custom specs.
• In Installed on (your vehicle), select 2019 Audi S4 or enter the known OEM fitment above.
• Use Custom wheel size to adjust rim diameter, width, and offset. Inner and outer clearance changes will update as you type.
• Use Custom tire size to change section width or aspect ratio. When you change rim diameter, the calculator updates tire diameter in the comparison so you can keep overall diameter consistent.
• Review the results:
  • Inner clearance vs strut and brake parts.
  • Outer poke vs fender and bumper liner.
  • Speedometer and ride height change.
• Fine tune offset and tire size until diameter change is small and both inner and outer clearances remain safe.

Fitment Checklist Before You Buy

• Bolt pattern: Must be 5x112.
• Center bore: Hub is 66.5 mm. Wheels with a larger bore require 66.5 mm hub-centric rings. Wheels with a smaller bore will not fit.
• Thread size: M14 x 1.5. Confirm fastener length and seat style for your wheel. Audi commonly uses lug bolts instead of nuts, but verify on your car.
• Seat style: Ball seat vs cone seat varies by wheel. If unknown, check your OEM bolts and the wheel manufacturer. Never mix seat styles.
• Offset and width: Use the calculator to ensure inner clearance to struts and brake calipers is maintained and that outer poke does not contact fenders.
• Brake clearance: The S4 has large brakes. Verify spoke profile and barrel clearance. Ask the wheel seller for a brake template when possible.
• Load rating: Wheel and tire load ratings must meet or exceed OEM.
• Tire diameter: Keep overall diameter change small to protect handling and driver aids. A common guideline is to stay within about 3 percent of stock and verify with the calculator.
• TPMS: Sensor type and relearn procedure can vary by market. If unsure, check your owner manual or OEM sources.
• Spacers: If required for clearance, use hub-centric spacers and matching extended M14 x 1.5 bolts. Recheck hub engagement length. Model the spacer thickness in the calculator by reducing offset.
• Test fit: Always perform a physical test fit on the front and rear, turn the steering lock to lock, and compress the suspension if possible before driving.

Plus Sizing And Common Upgrades

Factory fitment listed above is a solid baseline. Many owners consider plus sizing for looks or performance. Use the calculator to validate any change on your 2019 Audi S4.

• Plus 1 sizing: Move to a 19 inch rim and select a tire with a lower aspect ratio that keeps overall diameter similar. Check inner clearance and fender poke.
• Wider setups: Increasing wheel width improves lateral grip but reduces inner and outer clearance. Adjust offset in the calculator so inner clearance change stays small and the outer edge does not contact the fender.
• Ride and durability: Larger diameter wheels usually add weight and reduce sidewall. Expect firmer ride and higher risk of pothole damage.
• Winter setups: Narrower tires can improve snow traction. Many drivers stay at 18 inch for more sidewall and better protection.
• Brakes: If you plan a big brake kit, confirm the wheel barrel diameter and spoke design with a template from the brake manufacturer before purchase.

Installation Tips

• Work on a cool vehicle. Use proper jacking points and support with stands on a level surface.
• Clean the hub face and center bore. Remove rust and debris so the wheel sits flush. A thin film of anti-seize on the hub face can help prevent sticking. Keep it off fastener seats and threads.
• If using spacers, clean both mating surfaces and ensure they are hub-centric.
• Mount the wheel and hand start all fasteners. A wheel hanger guide pin sized for M14 x 1.5 can simplify alignment.
• Snug in a star pattern. Lower the car and torque to the factory specification from your owner manual or OEM service info.
• Re-torque after a short drive. Many installers recommend rechecking torque after 50 to 100 miles. Use the OEM spec.
• TPMS: Perform the sensor relearn or reset per the owner manual if needed.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench: Shop options
• M14 x 1.5 wheel hanger guide pin: Shop options
• 66.5 mm hub-centric rings: Shop options
• Low profile floor jack with rubber pad: Shop options
• Jack stands, breaker bar, wire brush, anti-seize compound, tire pressure gauge, and blue thread locker as appropriate.

FAQs

• Will any 5x112 wheel fit my 2019 Audi S4?

  No. In addition to 5x112, you need a 66.5 mm center bore or proper hub-centric rings, correct offset and width for clearance, adequate brake barrel and spoke clearance, correct M14 x 1.5 fasteners with the right seat style, and proper load rating. Use the calculator to verify inner and outer clearances before purchase.

• What is the stock wheel and tire size?

  One known OEM setup is 18x8.0 ET40 with 5.57 in backspacing and 245/40R18 tires. Some trims or packages may differ. Check your door placard or VIN-specific OEM data if your car appears different.

• Do I need hub-centric rings for aftermarket wheels?

  If the wheel center bore is larger than 66.5 mm, yes. Use rings that adapt the wheel bore down to 66.5 mm. If the wheel bore is smaller than 66.5 mm, the wheel will not fit your hub.

• Can I run spacers on the S4?

  Possibly. Use quality hub-centric spacers and matching extended M14 x 1.5 bolts with the correct seat style. Model spacer thickness in the calculator by reducing offset. Confirm hub lip engagement, brake and fender clearance, and local regulations.

• How much can I change tire diameter?

  As a general guideline, try to keep overall diameter within about 3 percent of stock and verify speedometer impact in the calculator. Always check clearances at full steering lock and with suspension compression.

• What lug seat style does my car use and what is the torque?

  Seat style and torque may vary by wheel and market. Do not guess. Inspect your OEM fasteners and consult the owner manual or OEM service information for the correct seat type and torque specification.

• Will the TPMS work with new wheels?

  The TPMS setup can vary by market and build. Some systems require sensor transfer or new sensors, others use an indirect system that relearns. Check your owner manual and follow the relearn procedure after installation.

If any value you need is not listed above or varies by trim, use the on-page Wheel Interchange calculator to compare your current setup against potential wheels, and confirm final details with your owner manual or an Audi dealer.