2011 Audi S6 Wheel Interchange

tl;dr

The 2011 Audi S6 takes a 5x112 bolt pattern, 57.1 mm center bore, and M14x1.5 threads. Our snapshot shows an ET48 wheel with a 9.0 inch width. There is a data conflict on rim and tire diameter. The wheel shows 20 inch, while the tire lists R19. Do not assume. Confirm your exact OEM size using the on-page calculator and your OEM sources before buying.

Recommendation

Work in a simple lifecycle. Verify, model, measure, then mount.

1) Verify your OEM spec

• Check the driver door placard and owner’s manual for wheel and tire size.
• Compare to the table below. Note the rim and tire diameter mismatch. Treat it as unconfirmed.

2) Model changes in the calculator

• Set “Installed on” to 2011 Audi S6.
• Use “Custom wheel size” to try widths and offsets near your OEM baseline.
• Use “Custom tire size” to keep overall diameter close to stock. The tool updates tire diameter when you change rim diameter.
• Check inner clearance to suspension and outer poke vs fender.

3) Measure on the car

• Measure strut clearance and fender lip room with a straightedge.
• Confirm hub bore is 57.1 mm or plan hub-centric rings to 57.1 mm ID.
• Match lug bolt seat style to the wheel. Do not mix seat types.

4) Test fit and torque

• Test fit one front and one rear. Spin to check caliper clearance.
• Torque lug bolts to factory spec from the Audi manual.
• Road test. Listen for rubbing. Re-torque after 50–100 miles.

Known OEM fitment snapshot

Values shown are from available data for the 2011 Audi S6. Items not listed should be verified with OEM sources. If a value conflicts with your car, use your car’s placard and the calculator as the source of truth.

Note the diameter mismatch. Some trims use 19 inch, others may use 20 inch. Confirm your exact variant using the VIN, door placard, or Audi documentation, then model it in the calculator.

Impact

• Width changes move the tire inward and outward. Watch strut and fender clearance.
• Offset changes shift the wheel centerline. Small changes matter on big brakes.
• Diameter changes alter tire diameter. This affects speedometer and gearing.
• Center bore mismatch causes vibration unless corrected with hub-centric rings.
• Lug seat mismatch reduces clamping and can loosen bolts.

Use the calculator to visualize inner clearance, outer poke, and tire diameter change. Changing rim diameter in the tool updates the tire diameter field so you can keep overall diameter sensible.

Risks

• Rubbing under compression or at full lock if poke increases too much.
• Strut or liner contact if inner clearance is reduced excessively.
• Brake caliper interference with certain spoke shapes or small barrel diameters.
• Vibration from non-hubcentric mounting without rings.
• Handling changes and ABS calibration drift from large tire diameter changes.
• Incorrect load or speed rating reducing safety margin.

Next actions

Checklist

• Confirm your OEM wheel and tire size on the door placard.
• Run your current size in the calculator as the baseline.
• Compare donor wheels using “Wheels from” and “Installed on” fields.
• Adjust custom wheel width and offset until inner and outer clearances look safe.
• Keep overall tire diameter close to stock. Watch the calculator’s tire diameter readout.
• Plan for hub-centric rings if donor center bore is larger than 57.1 mm.
• Verify lug bolt seat type for the new wheels. Match it exactly.
• Test fit, verify brake clearance, then torque to spec and re-torque later.

Helpful tools

• Wheel hanger guide pin M14x1.5
• 1/2 inch torque wrench
• Hub-centric rings 57.1 mm ID
• Digital caliper for quick measurements

Gotchas

• Do not reuse OEM ball-seat bolts on cone-seat wheels or vice versa.
• Backspacing and offset must both clear the caliper. Check both.
• Tire stretch or ballooning can mislead clearance estimates. Use realistic sizes.
• Always verify on-car before mounting tires to new wheels.

If any spec is unclear for your 2011 Audi S6, treat it as unknown. Confirm with the calculator on wheelinterchange.com and Audi OEM documentation before purchase.