2017 Audi S7 Wheel Interchange
2017 Audi S7 Wheel Fitment Baseline
I am looking at this like a risk steward. We start with what is known and verifiable for a 2017 Audi S7. Then we check the edge cases before any purchase.
| Spec | Value |
|---|---|
| Bolt pattern | 5x112 |
| Center bore | 66.6 mm |
| Thread size | M14 x 1.5 |
| Rim diameter | 19 in |
| Rim width | 8.5 in |
| Wheel offset ET | 32 mm |
| Backspacing | 5.51 in |
| Tire size | 255/40R19 |
Some builds may ship with other factory wheel sizes. Trim and brake package can change clearances. If your car differs, confirm with your door jamb placard, the owner manual, or an Audi dealer using your VIN. You can also use the on page calculator to compare your actual wheel and tire to this baseline.
Edge cases to consider before you buy
- Big brake clearance. The S7 may have large front calipers. Spoke shape and barrel profile can interfere even if diameter and width look fine.
- Offset sensitivity. Small offset changes can move the wheel inward or outward. Inner moves can hit the upright. Outer moves can poke past the fender.
- Aftermarket center bores. Many wheels have larger bores. You will need 66.6 hub centric rings for a proper fit.
- Lug seat style. Audi OEM wheels often use a ball seat. Many aftermarket wheels use a cone seat. Using the wrong seat can loosen under load.
- Spacer use. Spacers may help spoke to caliper clearance. They also reduce hub engagement and change fender clearance. Longer, correct seat bolts may be required.
- Winter setups. Narrower tires can help in snow. They also change sidewall behavior and clearance near the knuckle.
- Speedometer change. Tire diameter changes affect speed and gearing. Check the percent change before driving.
Detection using the calculator and simple checks
The calculator on this page compares Wheels from a donor vehicle vs Installed on your vehicle. Set the baseline to the known S7 spec above. Then try your candidate wheel in Custom wheel size and Custom tire size.
- Adjust rim width and offset. Watch inner clearance and outer poke. Aim for minimal changes unless you can measure the space on your car.
- Change tire section width or aspect ratio. The tool updates tire diameter when rim diameter changes. Keep overall diameter close to baseline for speed accuracy.
- Brake and barrel check. If you can, test fit one front wheel. Spin it by hand. Look and listen for contact at the caliper and knuckle.
- Lock to lock test. With the car on the ground, turn full left and right. Check the fender liner, upright, and harnesses.
- Bounce test. Load the suspension over a speed bump at low speed. Listen for rub at the arch lips and rear bumper tab areas.
If your current S7 is not on the listed spec, enter your actual tire and wheel from the sidewall and casting marks. Compare that to any new setup. This narrows the risk.
Mitigations if the fit looks marginal
- Choose a wheel with the correct 66.6 hub bore. If the wheel bore is larger, add quality hub centric rings. Plastic or aluminum can work when sized correctly.
- Maintain the 5x112 bolt pattern and M14 x 1.5 hardware. Match the lug seat style to the wheel. Do not mix seat types.
- Nudge tire size, not just wheel size. A 5 to 10 mm section width change can solve liner rub without hurting handling in most cases.
- Use spacers only when needed for caliper clearance. Ensure adequate hub lip engagement and use appropriate extended bolts. Recheck torque after 50 to 100 miles.
- Get an alignment after major changes. Toe shift can cause rub and premature wear.
Safe defaults that avoid surprises
- Keep close to the stock 19 x 8.5 ET32 and 255/40R19 overall diameter.
- Stay with 5x112, 66.6 center bore, and M14 x 1.5 hardware.
- If changing offset or width, make small moves and verify with the calculator first. Then test fit one front wheel.
- Confirm lug seat style and bolt length with the wheel maker before mounting.
- Torque to the Audi spec from the owner manual and recheck on a cold wheel.
Quick checklist before installation
- Door placard and VIN check complete. Specs match or variances noted.
- Calculator shows acceptable inner clearance, outer poke, and diameter change.
- Center bore 66.6 mm confirmed or hub rings ready to install.
- Bolt pattern 5x112 confirmed. Hardware thread M14 x 1.5 matched.
- Lug seat style verified for the wheel. Correct bolts on hand.
- If using spacers, hub engagement and bolt length are adequate.
- Test fit performed. Lock to lock and bounce checks passed.
- Torque applied per Audi spec. Recheck after initial miles.
Helpful tools and parts
Use the on page comparison to model any change before you buy. If a value is missing for your exact trim, confirm with the owner manual or an Audi parts desk. That simple step can prevent costly returns and rubbing issues.
Questions or edge scenarios you want to sanity check. Run them through the calculator, note the deltas, and we can walk the risk down together.
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