2009 Audi Q5 Wheel Fitment Guide

I am writing as your risk steward. You want clear answers without fluff. Let’s start with what is known, then work through the edge cases. We will use the wheelinterchange.com calculator where details vary.

1. Baseline

These are the confirmed OEM specs for the 2009 Audi Q5. If your trim or market differs, treat these as a starting point and verify with the on-page calculator and your owner’s manual.

Other factory sizes may exist by package or region. If your door placard shows different values, use those as your baseline and compare them in the calculator.

2. Edge cases

• Brake clearance can be tight with some spoke shapes. Diameter alone does not guarantee clearance.
• Offset changes may push the wheel outward or inward. Fender lips and liners can rub under load.
• Aftermarket wheels often have larger center bores. Hub-centric rings may be required to avoid vibration.
• Fastener seat type can vary by wheel. Ball seat and cone seat are not interchangeable.
• Spacers change both offset and fastener engagement. Bolts may need to be longer in some cases.
• Tire overall diameter affects speedometer and clearance. Small changes can compound with offset changes.
• Regional trims may have different brake packages. Caliper size affects spoke and barrel clearance.

3. Detection

Use the wheelinterchange.com calculator to compare a donor setup to your Q5. Set “Installed on” to 2009 Audi Q5. Enter the OEM baseline above. Then enter the donor or custom values.

• Adjust rim width, diameter, and offset. Watch the change in inner clearance and outer poke.
• Change tire section width and aspect ratio. The tool updates tire diameter for a fair comparison.
• Look for red flags: reduced inner clearance, excessive poke, or large diameter changes.

Confirm physically before purchase when possible. Test fit a single wheel, spin it by hand, and check caliper, liner, and strut clearance at full lock and near full compression.

• Measure hub to wheel bore difference. A simple digital caliper helps. Search digital caliper
• Verify fastener thread and seat type on the wheel. Do not mix seat profiles.
• Count turns of engagement on each bolt. Short engagement can strip under load.

4. Mitigations

• Minor offset mismatch: a thin hub-centric spacer can recover inner clearance. Use hub-centric spacers and appropriate longer bolts when required.
• Vibration from large aftermarket bores: add hub-centric rings sized to 66.5 mm at the hub. Select the wheel-side diameter to match the new wheel bore. Search hub-centric rings
• Seat type mismatch: switch to correct seat bolts for the wheel. Thread remains M14 x 1.5. Length and seat profile must match your setup. Search M14x1.5 wheel bolts
• Diameter drift after a rim change: use the calculator to select a tire profile that keeps overall diameter close to stock.
• Install accuracy: use a quality torque wrench and re-torque after 50–100 km. Follow the factory torque spec in the manual. Search 1/2 inch torque wrench

5. Safe defaults

• Start from the known OEM baseline shown above.
• Keep tire diameter within about 2 percent of stock where possible.
• Favor small offset changes. Aim for minimal inner clearance loss and limited outer poke.
• Use hub-centric rings when wheel bore exceeds 66.5 mm.
• Match fastener thread and seat type. Do not mix seat profiles.
• Use hub-centric spacers only when needed, with proper bolt engagement.
• If anything is unclear, test fit a single corner before committing.

6. Checklist

• Confirm your door placard and service manual against the baseline.
• Enter both setups in the wheelinterchange.com calculator. Note clearance and diameter changes.
• Verify wheel center bore and plan rings if needed.
• Confirm M14 x 1.5 fasteners and correct seat type for the wheel.
• If using spacers, confirm hub-centric design and required bolt length.
• Test fit, spin check, and turn lock-to-lock under light compression.
• Torque to the factory spec using a calibrated tool and re-torque after a short drive.

Final note

Fitment can feel high stakes. With the baseline above and the calculator checks, most risks are manageable. Take small steps, verify each variable, and you will land on a confident setup.