2013 Audi S6 Wheel Interchange

2013 Audi S6 Wheel Fitment Guide

Known OEM Fitment For 2013 Audi S6

The data below reflects known factory specifications for the 2013 Audi S6. If your vehicle has special packages or market-specific equipment, confirm details in the owner’s manual, the driver door jamb label, or through your Audi dealer before purchasing wheels or tires.

Notes: Backspacing is design dependent and may vary slightly by wheel model. If any value is unknown for your specific trim or market, verify with OEM sources before you buy.

How To Use The Wheel Interchange Calculator

The calculator lets you compare a donor vehicle’s wheels to your 2013 Audi S6, or test custom wheel and tire sizes. Follow these steps:

• Set Installed on (your vehicle) to 2013 Audi S6. Confirm the OEM baseline values above are shown.
• To compare another setup, select Wheels from (donor vehicle) or choose Custom wheel size to enter rim diameter, rim width, and offset you want to test.
• If you change rim diameter, the calculator updates tire diameter in the comparison. Adjust Custom tire size (section width and aspect ratio) to keep overall diameter close to stock.
• Review changes the tool displays:
  • Inner clearance change - distance to suspension and brake components.
  • Outer poke change - how far the wheel will sit toward the fender.
  • Tire overall diameter difference - affects speedometer, gearing, ABS, and ride height.
• Aim to keep tire diameter within about plus or minus 3 percent of OEM for street use, and verify you maintain safe inner clearance and fender coverage.
• Use the calculator to model spacers if needed. A spacer reduces effective offset by its thickness.

Fitment Checklist Before You Buy

• Bolt pattern: Must be 5x112. Anything else will not mount correctly.
• Center bore: Hub is 66.6 mm. A wheel with a larger bore requires 66.6 mm hub-centric rings. A smaller bore will not fit.
• Fasteners: Thread is M14 x 1.5. Length and seat type must match the wheel and any spacers. Never mix ball-seat and cone-seat hardware.
• Offset and width: Use the calculator to ensure inner clearance remains positive to struts, liners, and brake calipers, and that outer poke does not contact fenders. Avoid pushing the tire beyond the fender edge where prohibited.
• Brake clearance: The S6 uses large brakes. Confirm caliper clearance with the exact wheel model. A physical test fit or a manufacturer’s brake template is recommended.
• Load rating: Wheel and tire load ratings must meet or exceed the vehicle requirements. Check the tire placard for minimum load index and match or exceed it.
• Speed rating: Match or exceed OEM where required.
• TPMS: The TPMS type may vary by market and equipment. If your car uses in-wheel sensors, transfer or install compatible sensors and perform relearn as required. Consult your owner’s manual.
• Spacers: If used, choose hub-centric spacers that replicate the 66.6 mm hub lip and use appropriately longer M14 x 1.5 bolts. Recalculate effective offset.
• Test fit: Always test fit one corner, turn lock-to-lock, and compress the suspension to check clearance before mounting tires or driving.

Plus Sizing And Common Upgrades

Plus sizing increases rim diameter while using a lower-profile tire to keep the overall tire diameter close to stock. With the 2013 Audi S6, many owners consider moving up in diameter or width for aesthetics or performance. Because brake size, fender tolerances, and market equipment can vary, confirm every change with the calculator and a physical test fit.

• Keep overall tire diameter within a small variance of OEM to minimize speedometer and ABS impacts. Use the calculator to monitor diameter and ride height change.
• If you widen the wheel, verify inner clearance to suspension and liners and maintain adequate fender coverage. Small offset adjustments may be required, which the calculator will show as inner and outer changes.
• All-wheel drive caution: Maintain the same rolling diameter on all four corners. Staggered tire diameters are not recommended. If using staggered widths, keep overall diameters equal front and rear.
• Winter packages: A smaller wheel diameter may be possible if brake caliper clearance is adequate. Verify with an OEM winter wheel spec or a physical test fit and use the calculator to keep overall diameter appropriate.

Installation Tips

• Prepare the hub: Clean rust and debris from the 66.6 mm hub with a wire brush so wheels seat fully. If using rings, ensure they sit flush.
• Hardware: Confirm M14 x 1.5 bolts with the correct seat type for the wheel. If spacers are installed, use appropriately longer bolts.
• Mounting: Use a wheel hanger guide pin to align heavy wheels and protect threads. Hand start all bolts.
• Tightening: Lower the car until the tire just contacts the ground, then torque bolts in a star pattern to the specification in your Audi service information. Do not use an impact gun for final torque. Do not lubricate bolt threads unless the OEM procedure requires it.
• Final checks: Spin the wheel by hand to confirm brake clearance. After a short drive, re-torque the bolts and check for any contact or rubbing on full steering lock and over bumps.
• TPMS: If equipped with sensors, complete relearn or programming per the owner’s manual.
• Alignment: Any significant offset or width change warrants an alignment check to ensure proper handling and tire wear.

Tools And Helpful Supplies

• 1/2 inch drive torque wrench: Search on Amazon
• Thin wall lug socket set: Search on Amazon
• Wheel hanger guide pin M14 x 1.5: Search on Amazon
• Hub-centric rings 66.6 mm to wheel bore: Search on Amazon

Also useful: quality floor jack and stands, breaker bar, wire brush, tire pressure gauge, and a paint-safe fender cover.

FAQs

• What wheel specs fit the 2013 Audi S6 without issues?

  Start from the OEM baseline 19x8.5 ET45 with 255/40R19, 5x112 bolt pattern, 66.6 mm center bore, and M14 x 1.5 bolts. Use the calculator to compare any new setup. Maintain safe inner clearance and fender coverage and keep overall tire diameter close to stock.

• Can I run 20 inch wheels on my S6?

  Possibly, provided brake clearance is adequate and the tire size keeps overall diameter within a small variance of OEM. Use the calculator to model the change and physically test fit for caliper clearance and fender clearance.

• Do I need hub-centric rings?

  If the aftermarket wheel has a larger center bore than 66.6 mm, yes, use rings to 66.6 mm. A wheel with a smaller bore will not fit the hub. Rings improve centering and help prevent vibration.

• What lug bolts should I use?

  Thread must be M14 x 1.5. The seat type must match the wheel design, and the length must account for any spacers. Never mix seat types and do not reuse hardware that is worn or damaged.

• What is the correct torque for the lug bolts?

  Refer to your owner’s manual or Audi service information for the exact torque for your market and equipment. Torque in a star pattern on clean, dry threads unless OEM procedures specify otherwise.

• Can I use spacers to clear suspension or calipers?

  Yes, when necessary and chosen carefully. Use hub-centric spacers that replicate the 66.6 mm hub lip and extend the lug bolts accordingly. Recalculate effective offset in the calculator and test fit.

• Is a staggered setup OK on the S6?

  The vehicle is all-wheel drive. If using staggered widths, keep rolling diameters the same front and rear to protect the drivetrain. Confirm clearance and tire rotation options before purchase.

• Will smaller winter wheels fit?

  Possibly, if they clear the brakes. Verify against OEM winter package specifications or perform a physical test fit. Use the calculator to keep overall tire diameter within an acceptable range and ensure adequate inner and outer clearances.