The bolt pattern for the 2005 Audi S4 is 5x112 mm (five lug nuts on a 112 mm circle).
In the 2005 S4, part of the B6 generation, the wheel hub bore is 66.6 mm. This combination is common among Audi models from the era and is shared with many VW Group vehicles. When replacing wheels, verify both the bolt pattern and the hub bore, and consider hub-centric rings if the new wheel’s bore differs from 66.6 mm.
Bolt Pattern Basics
Understanding bolt patterns helps ensure wheel compatibility and proper hub centering. For the 2005 Audi S4, the 5x112 bolt circle is the standard across many Audi models of that era.
The following specs help verify wheel compatibility when shopping for wheels or adapters.
- Bolt pattern: 5x112 mm
- Center bore: 66.6 mm
- Hub-centric fit: Most wheels designed for 5x112 will require the correct bore or a hub-centric ring to ensure precise centering
A proper fit ensures hub centering and safe operation; mismatch can lead to vibrations, improper seating, and increased wear. Always confirm with the wheel manufacturer and, if possible, test-fit before final installation.
Summary
For a 2005 Audi S4, the key specification is a 5x112 bolt pattern with a 66.6 mm center bore. Confirm these dimensions, along with offset and clearance, when selecting wheels to ensure safe, proper mounting.