2015 Audi S5 Wheel Interchange

2015 Audi S5 wheel fitment guide

tl;dr

Use the on-page calculator to compare any wheel to your S5. Match 5x112, 66.6 mm hub, and M14x1.5 threads. Stay close to the recorded OEM offset for a clean, rub-free fit. Verify torque, seat type, and bolt length from OEM sources before driving.

Recommendation

I recommend starting from the OEM records on this page, then testing your target setup in the calculator. Keep overall tire diameter near stock and offset changes small. Test-fit one corner before mounting tires. Re-torque after a short shakedown.

Note: Factory equipment can vary by trim and package. The entries above are what we have on file for 2015. Do not assume all S5s match both lines at once. Use the door-jamb placard and owner’s manual to confirm your baseline, then model changes with the calculator.

Impact

• Offset: Moving far from ET29 on a 20x9 can change fender and suspension clearance. Small changes often work, but verify.
• Width: Wider wheels push inner or outer lips depending on offset. Check both sides in the calculator.
• Tire diameter: Large diameter changes affect speedometer and gearing feel. Keep differences modest for street use.
• Steering and ride: Lower profile tires sharpen response but add impact harshness. Balance looks with daily comfort.
• Brakes: The S5 has sizable calipers. Spoke shape matters for clearance even when diameter looks fine.

Risks

• Rubbing: Outer fender rub on compression or inner liner rub on lock. Check with suspension loaded.
• Fastener mismatch: Wrong seat type or bolt length can loosen or damage hubs. Always match wheel maker guidance.
• Hub vibration: Non-hubcentric fits cause shakes at speed. Use quality 66.6 mm rings if the wheel bore is larger.
• Spacer misuse: Spacers change effective offset and require longer M14x1.5 hardware. Use hubcentric spacers only and re-check torque.
• TPMS: System type can vary by market. Verify whether your car needs sensors in-wheel or uses indirect monitoring.

Next actions

Use the on-page calculator:

• Set “Installed on” to 2015 Audi S5.
• If copying a known setup, set “Wheels from” to that donor or enter a “Custom wheel size.”
• Adjust rim diameter, width, and ET. Then adjust “Custom tire size.” The tool will update tire diameter in the comparison.
• Watch inner and outer clearance, overall diameter difference, and poke vs. strut gap.

Checklist before buying:

• Confirm your car’s OEM wheel and tire sizes on the door placard.
• Match 5x112 bolt pattern and 66.6 mm center bore fit.
• Verify bolt seat type and required bolt length with the wheel manufacturer.
• Confirm torque spec in the Audi owner’s manual or service info.
• If using spacers, specify hubcentric spacers and correct extended M14x1.5 bolts.
• Plan a test fit on one corner. Spin by hand. Turn lock to lock. Compress the suspension if possible.
• After installation, torque in a star pattern. Re-torque after 50–100 miles.
• Schedule an alignment if you change width or offset meaningfully.

Helpful tools:

• 1/2 inch torque wrench
• M14x1.5 wheel hanger guide pin
• 66.6 mm hub-centric rings
• Tire pressure gauge

Gotchas

• Do not mix tire diameters front to rear unless your driveline allows it.
• Do not assume torque values. Audi publishes them by model and year.
• Do not rely on just diameter. Spoke profile and barrel shape can still hit calipers.

How to confirm unknowns

If a value is missing or varies by trim, verify with the door-jamb placard, the owner’s manual, or OEM parts data using your VIN. Then mirror that baseline in the calculator and iterate from there.