The bolt pattern for a 2013 Audi A4 is 5x112 mm. In practical terms, this means five lug holes arranged on a circle with a diameter of 112 millimeters; the hub bore on this model is 66.5 mm. This configuration is common across many Audi and VW Group vehicles and significantly affects wheel compatibility, hub adapters, and brake clearance.
What the numbers mean for wheel fitment
Understanding bolt pattern numbers helps determine which wheels will mount safely and run true. A 5x112 pattern indicates five lugs spaced evenly around a circle with a 112 mm diameter. The center bore size determines how the wheel centers on the hub; if the wheel bore is larger, hub-centric rings are often used to improve centering and reduce vibrations.
2013 A4 specifics: center bore, lug type, and fitment basics
The A4 uses a hub-centric design with a center bore of 66.5 mm. The lug mounting employs M14x1.5 threads with a 60-degree conical seating surface. When selecting wheels, verify the wheel width, offset, and brake clearance are compatible with your exact trim and wheel size, and consult the vehicle’s documentation or a wheel professional if in doubt.
Key wheel-fitting specifics to confirm for the 2013 A4:
- Bol t pattern: 5x112 mm
- Center bore: 66.5 mm
- Lug hardware: M14x1.5 threads with a 60-degree cone seat
- Brake and suspension clearance: ensure adequate space for calipers and suspension components
- Torque considerations: follow manufacturer torque specs for lug attachments
Hub rings may be required if the wheel bore is larger than the hub bore to ensure proper centering and reduce vibrations. If you use wheels with a smaller bore, you may need adapter rings to achieve a proper fit.
Center bore details and hub-centric rings
Center bore size matters for precise wheel alignment. With a 66.5 mm bore on the 2013 A4, many aftermarket wheels require hub-centric rings to ensure accurate centering. Hub rings help transfer the load from the wheel to the hub smoothly, minimizing runout and potential vibrations.
Summary
For a 2013 Audi A4, the standard bolt pattern is 5x112 mm, with a center bore of 66.5 mm and lug hardware sized M14x1.5 with a 60-degree conical seat. When choosing wheels, confirm the bolt pattern, center bore, seat type, and brake clearance, and consider hub rings if the wheel bore does not match the hub. Always verify specifications for your exact vehicle configuration and wheel size before purchase or installation.