2019 Audi A3 Wheel Interchange

tl;dr

The 2019 Audi A3 uses a 5x112 bolt pattern, 57.1 mm center bore, and M14 x 1.5 threads. We have recorded an OEM wheel at 16x6.5 ET43 with 4.94 in backspacing, and a factory tire size of 225/45R17 on some trims. Packages vary by trim and options. Use the on-page wheel calculator to compare any donor setup to your car, then confirm against your door placard and OEM sources.

Recommendation

I set up A3 wheel swaps in this order to avoid rework.

• Confirm your exact car: VIN, trim, brake package, and suspension.
• Match the basics first: 5x112 bolt pattern and 57.1 mm hub.
• If the donor wheel has a larger center bore, plan hub-centric rings to 57.1 mm.
• Keep M14 x 1.5 hardware with the correct seat type. Verify seat style on your existing bolts before buying.
• Use the calculator to test width and offset. Start from the known baseline below.
• Hold tire overall diameter close to stock. Aim within about 2 to 3 percent.
• Visually check inner clearance at the strut and caliper, and outer poke at the fender.
• Before finalizing, confirm load index and speed rating on the tire to meet or exceed OEM.

Known baseline for 2019 Audi A3

Note: Multiple OEM wheel and tire packages were offered. If your trim has larger brakes, smaller diameters may not clear. Always verify your specific package.

How to use the calculator effectively

• Select Wheels from (donor vehicle) that matches the wheels you want.
• Select Installed on (your vehicle) as 2019 Audi A3.
• Adjust Custom wheel size to test rim diameter, width, and offset.
• Adjust Custom tire size to test section width and aspect ratio.
• Changing rim diameter updates the tire diameter in the comparison. Watch the speedometer and clearance changes.

Impact

• Offset change: Lower ET pushes the wheel outward. Higher ET moves it inward toward the strut.
• Width change: Half of the added width grows inward when offset stays the same.
• Tire diameter: Larger diameters raise the car and can rub at full lock. Smaller diameters lower the car and raise indicated speed.
• Center bore fit: A larger aftermarket bore needs rings to 57.1 mm to prevent vibration.
• Hardware: Wrong seat style or length can damage hubs or rotors.

Risks

• Inner rub on strut or brake lines from too much inward move.
• Fender poke and contact over bumps from too little offset.
• Caliper interference when downsizing diameter on trims with larger brakes.
• Vibration from non hub-centric mounting if rings are missing.
• ABS and ESC behavior changes if tire diameters vary too much axle to axle.
• TPMS and load issues if tire specs do not meet OEM requirements.
• Seat mismatch on bolts can loosen under load. Verify ball vs cone seat type visually.

Next actions

Checklist

• Read your door placard for OEM tire size, load, and speed rating.
• Confirm 5x112, 57.1 mm center bore, and M14 x 1.5 threads.
• Open the calculator and load 2019 Audi A3 as your vehicle.
• Enter the donor wheel data or use Custom wheel size.
• Keep tire diameter within about 2 to 3 percent of OEM.
• Verify fender and strut clearance with the calculator and a physical test fit.
• Order hub-centric rings if the wheel bore is larger than 57.1 mm.
• Use the correct seat type bolts at proper length. Do not reuse mismatched hardware.
• After installation, road test at low speed and recheck fasteners after 50 to 100 miles.

Helpful tools and parts

• 57.1 hub-centric rings
• M14 x 1.5 lug bolts
• Wheel hanger guide pin M14 x 1.5
• 1/2 inch torque wrench

If any spec on your car does not match the list above, stop and confirm with your VIN in the factory service information or your dealer parts desk. The calculator on wheelinterchange.com will help you visualize clearance and diameter changes before you buy.