OEM wheel and tire fitment specs for the 2003 Audi S6, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.
Recorded OEM specifications for the 2003 Audi S6, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.
Donor vehicles with overlapping OEM specs
These are vehicle-year records whose recorded OEM ranges overlap this 2003 Audi S6. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 142 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
OEM specs overlapOEM ranges overlap – confirm the specific wheel
Bolt pattern5x112 · Same recorded PCD
Center bore57.1 mm · same recorded hub figure
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.
Dataset suggestionWheel spacer ≈ 5.5 mm – not a verified installation requirement.
Hub-centric rings of about 66.5 → 57.1 mm mm may be relevant if the wheel bore is larger than the hub. A spacer of about 5.5 mm is a dataset suggestion only; clearance is not verified.
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Approximate position vs the mid OEM package: outer change -7.85 mm, inner change -4.85 mm. This uses aggregated width/offset ranges, not a specific wheel.
OEM specs overlapOEM ranges overlap – confirm the specific wheel
Bolt pattern5x112 · Same recorded PCD
Center bore57.1 mm · same recorded hub figure
Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.
Audi S6 Years With Compatible Wheels
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2003 Audi S6. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare
Compare wheel compatibility between two vehicles
Wheels from (donor vehicle)
Selected Car:
Custom wheel size (optional)
Tip: change values here to simulate custom wheels and immediately see the impact in the comparison below.
Custom tire size (optional)
Installed on (your vehicle)
Selected Car:
2003 Audi S6
Compare Rims
Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
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5x112
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
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57.1 mm
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
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M14 x 1.5
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
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17"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
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8.0"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
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35 mm
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
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-
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
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-
Compare Tires
Specification
Wheels from
Installed on
Result (Click it)
Section Width
The width of the tire from sidewall to sidewall, measured in millimeters.
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Aspect Ratio
The height of the tire’s sidewall expressed as a percentage of its width.
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Diameter
The wheel diameter for which the tire is designed to fit.
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Tire Pressure
The recommended air pressure for safe and efficient driving.
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Overall Diameter
The total height of the tire and wheel combined affects clearance and speedometer accuracy.
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-
Wheel Fitment Parts for the 2003 Audi S6
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
2003 Audi S6 Wheel Fitment Guide
This page summarizes verified factory wheel and tire specs for the 2003 Audi S6 and explains how to use the on-page calculator at wheelinterchange.com to compare donor wheels and custom sizes safely. Values not listed here may vary by trim or market. When a value is unknown, confirm it with the calculator comparison, your owner’s manual, or official Audi service information.
Factory Wheel and Tire Specifications
Vehicle
2003 Audi S6
Bolt pattern
5x112
Center bore
57.1 mm
Thread size
M14 x 1.5
OEM rim size
17 x 8.0 in
OEM offset (ET)
ET35 mm
OEM backspacing
5.38 in
OEM tire size
255/40R17
Notes: Lug hardware seat type and torque are not listed here. Verify seat type and torque in the owner’s manual or Audi service documentation. Do not mix ball-seat and cone-seat hardware.
How to Use the Wheel Interchange Calculator
Compare donor wheels to your 2003 Audi S6
In Wheels from (donor vehicle), select the vehicle the wheels came from or enter a custom wheel and tire size.
In Installed on (your vehicle), select 2003 Audi S6.
Adjust Custom wheel size for the donor wheel diameter, width, and offset. If you also change tire size, set section width and aspect ratio. Changing rim diameter will update calculated tire diameter in the comparison.
What to watch in the comparison
Inner clearance to suspension and brakes. Large increases in backspacing or positive offset reduce inner clearance.
Outer poke relative to fender edge. Lower offset or wider wheels extend outward.
Overall tire diameter difference. Keep the change small to minimize speedometer error and avoid rubbing. Many installers target within about 3 percent, but always verify with a physical test fit.
Fitment Safety Checklist
Bolt pattern must match exactly. The 2003 Audi S6 uses 5x112.
Center bore is 57.1 mm. If an aftermarket wheel has a larger bore, use hub-centric rings sized to 57.1 mm. If the bore is smaller than 57.1 mm the wheel will not seat without machining.
Thread size is M14 x 1.5. Confirm hardware seat type in OEM sources. Many VAG applications use ball-seat bolts, but do not assume. Match seat type to the wheel’s seat profile.
Start from the OEM reference of 17x8 ET35. Use the calculator to see how changes in width or offset affect inner clearance and outer poke before buying.
Backspacing relationship. More backspacing means the wheel sits further inward. Backspacing is a function of wheel width and offset, so always evaluate both together in the calculator.
Load rating. Wheels and tires must meet or exceed the axle load requirements of the S6. Check wheel and tire load indexes on product labels.
Brake clearance. Verify spoke and barrel clearance over the S6 brake calipers with a physical test fit. Do not rely on diameter alone.
ABS and speedometer. If overall tire diameter changes, expect speedometer variance. Use the calculator to compare diameters and aim for a small variance. Road test and compare with GPS if needed.
Spacers, Adapters, and Hardware Notes
Hub-centric spacers should match the 57.1 mm hub and replicate a proper hub lip to the wheel. Using spacers typically requires longer M14 x 1.5 bolts matched to spacer thickness and seat type.
If your S6 uses wheel bolts, a guide pin makes mounting easier and helps protect threads.
Torque the fasteners in a star pattern using the manufacturer’s torque specification from the owner’s manual or service manual. Re-torque after 50 to 100 miles of driving.
Choosing Alternate Wheel and Tire Sizes
There are many size combinations that can work, but exact limits depend on suspension condition, brake package, and alignment. Use the calculator to model changes from the OEM 17x8 ET35 with 255/40R17. Review inner clearance, outer poke, and tire diameter change before purchase. When in doubt, perform a test fit.
Troubleshooting Common Issues
Vibration at speed. Check that the wheel is hub-centric to 57.1 mm, verify balance, and confirm correct seat type on bolts.
Rubbing on turns or bumps. Compare your setup to OEM in the calculator to see where clearance is reduced. Consider a tire with a slightly narrower section width or adjust offset appropriately.
Uneven tire wear. Verify alignment and ensure tires match on all four corners in size and load rating.
How to Confirm Unknown Specs
Use the on-page calculator to compare your planned setup to the OEM 17x8 ET35 and 255/40R17. Review inner and outer position changes and tire diameter.
Check your owner’s manual or Audi service information for hardware seat type and torque values. A dealer parts counter can also confirm hardware style for your VIN.
Measure your current wheels. A digital caliper can verify center bore. Wheel markings on the back of spokes often list size and offset.
A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.
