2007 Audi S6 Wheel Interchange
OEM wheel/tire sizes and fitment specs for the 2007 Audi S6.
2007 Audi S6 Wheel Fitment Guide
You want wheels that fit, clear the brakes, and drive safely. The common problem is mixed or incomplete specs. The data below lists what is known for this model year. Where values conflict or may vary by package, I explain how to confirm with the door placard, OEM sources, and the on-page calculator here on wheelinterchange.com.
1. Goal
Select wheels and tires for a 2007 Audi S6 that mount without rub, keep correct hardware, and maintain safe geometry within your constraints.
2. Prerequisites
- Check the tire placard on the driver door for your exact factory size.
- Read the size and offset stamped on your current wheels.
- Inspect brake caliper size and clearances if upsizing width or diameter.
- Know your use case. Daily, winter, track, or show changes the trade-offs.
- Tools recommended:
- Torque wrench for correct tightening
- Digital calipers to verify center bore and spacer thickness
- Wheel hanger guide pin M14x1.5 for bolt-on mounting
- Hub-centric rings to 57.1 mm if aftermarket wheels have a larger bore
Known OEM Fitment Baseline
The following values are provided. Some packages may vary. Use them as a starting assumption and validate on your car.
| Spec | Value |
|---|---|
| Bolt pattern | 5x112 |
| Center bore | 57.1 mm |
| Thread size | M14 x 1.5 |
| Rim diameter | 20 in |
| Rim width | 9.0 in |
| Wheel offset | ET 48 mm |
| Backspacing | 6.39 in |
| Tire section width | 265 mm |
| Tire aspect ratio | 35 |
| Tire rim diameter | 19 in |
Note the 20 inch wheel entry and 19 inch tire entry are inconsistent. That suggests more than one OEM package, or a data mix. Confirm your factory size on the door placard and your current wheel stampings. Then use that confirmed size as the baseline in the calculator below.
3. Step by step
3.1 Confirm your baseline
- Open your driver door and read the tire placard. Record tire size and load index.
- Remove one wheel if needed and read the cast or etched size and ET offset inside the wheel.
- Your hub is 57.1 mm and bolt pattern is 5x112. Thread is M14x1.5. Keep these constraints constant.
3.2 Use the Wheel Interchange calculator
- In Wheels from (donor vehicle), choose the source vehicle or enter Custom wheel size.
- In Installed on (your vehicle), select 2007 Audi S6.
- Set Custom wheel size to the candidate rim diameter, width, and offset.
- Set Custom tire size by section width and aspect ratio. The tool updates total tire diameter automatically when you change rim diameter.
- Compare inner clearance, outer poke, track change, and ride height difference against your confirmed baseline.
3.3 Manage offset and width trade-offs
- More positive offset moves the wheel inward. Risk is strut or upright contact.
- Less positive offset moves the wheel outward. Risk is fender rub or poke.
- Wider wheels increase both inner and outer reach. Balance with offset in the tool.
3.4 Keep overall tire diameter reasonable
- Use the calculator to keep overall diameter close to stock. This helps speedometer accuracy and ABS logic.
- A small diameter change is usually fine. Larger changes increase rubbing risk and speed error.
3.5 Check brake and suspension clearance
- Big S6 brakes need room behind spokes and at the barrel.
- After entering sizes, do a physical test fit. Spin the wheel by hand and check for contact.
- Measure spoke-to-caliper and barrel-to-caliper clearance with feeler gauges or calipers.
3.6 Hardware and hub fit
- Center bore must seat on the 57.1 mm hub. If the wheel bore is larger, use quality hub-centric rings sized to 57.1 mm.
- Use M14x1.5 wheel bolts of correct length and correct seat type for the wheel. Audi OEM wheels often use a ball seat. Many aftermarket wheels use a cone seat. Verify visually or with the wheel supplier.
- If you add spacers, you will likely need longer bolts and a hub-centric spacer that maintains a 57.1 mm lip. Keep hub engagement and fastener engagement within OEM guidance.
- Tighten fasteners to the torque specified in the Audi service information for your vehicle.
4. Validation
- With the car on the ground, turn lock to lock and listen for contact.
- Drive slowly over a speed bump. Load the suspension and recheck for rub marks.
- Use GPS or a known-speed stretch to check speedometer error after changes.
- Balance the wheels and road test at highway speed. The car should be smooth and track straight.
- Re-torque the wheel bolts after the first short trip to confirm clamp load.
5. Troubleshooting
- Rubbing on the inner side: Increase positive offset, use a narrower wheel or tire
Wheel interchange calculator
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