1998 Audi A8 Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 1998 Audi A8, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x112 |
|---|---|
| Lug Nut / Bolt Size | B 14x1.50 |
| Center Bore (CB) | 57.1 mm |
| Offset (ET) | 42 |
| Torque Specs | 100 ft-lbs (135 Nm) |
1998 A8 — Year-Specific Fitment Context
The 1998 Audi A8 is in year 2 of 28 using the 5x112 pattern (1997–2024). Wheels from any 1997–2024 Audi A8 are cross-compatible with the 1998 model.
Audi A8 Bolt Pattern by Year
The table below shows how the A8's wheel specifications have changed over the years. The 1998 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1997 | 5x112 | 57.1 | 42 |
| ▸ 1998 | 5x112 | 57.1 | 42 |
| 1999 | 5x112 | 57.1 | 42 |
| 2000 | 5x112 | 57.1 | 42 |
| 2001 | 5x112 | 57.1 | 42 |
| 2002 | 5x112 | 57.1 | 42 |
| 2003 | 5x112 | 57.1 | 42 |
| 2004 | 5x112 | 57.1 | 42 |
| 2005 | 5x112 | 57.1 | 42 |
| 2006 | 5x112 | 57.1 | 42 |
| 2007 | 5x112 | 57.1 | 42 |
| 2008 | 5x112 | 57.1 | 42 |
| 2009 | 5x112 | 57.1 | 42 |
| 2010 | 5x112 | 57.1 | 42 |
| 2011 | 5x112 | 66.6 | 42 |
| 2012 | 5x112 | 66.6 | 42 |
| 2013 | 5x112 | 66.6 | 42 |
| 2014 | 5x112 | 66.6 | 42 |
| 2015 | 5x112 | 66.6 | 42 |
| 2016 | 5x112 | 66.6 | 42 |
| 2017 | 5x112 | 66.6 | 42 |
| 2018 | 5x112 | 66.5 | 30-45 |
| 2019 | 5x112 | 66.5 | 30-45 |
| 2021 | 5x112 | 66.5 | 30-45 |
| 2022 | 5x112 | 66.5 | 30-45 |
| 2023 | 5x112 | 66.5 | 30-45 |
| 2024 | 5x112 | 66.5 | 30-45 |
5x112 Pattern Context
This bolt pattern appears on 1490 vehicles in our current database and is considered common.
Examples of other vehicles using 5x112:
Expert Buying Guide for 1998 Audi A8
For the 1998 Audi A8, the 5x112 bolt pattern is shared across 1997–2024 models, enabling cross-compatibility. However, the 57.1mm center bore is critical: aftermarket wheels often have a larger bore, requiring hub-centric rings to prevent vibration and ensure proper load transfer. The 42mm offset is sensitive; deviations beyond ±5mm may cause rubbing or clearance issues. Always verify lug nut specifications: use 14x1.50 thread pitch with ball-seat (R14) or conical-seat (60-degree) nuts as required by the wheel. Improper seating can lead to loosening. Re-torque after 50-100 miles. Avoid universal fitments without hub rings.
Historical Fitment Data Reference
In our dataset, Audi A8 appears from 1997 to 2024 (27 model years). Across recorded model years, this model generally keeps the same bolt pattern.
- Observed bolt-pattern variants for this model: 1
- Observed center-bore variants for this model: 3
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 87.0 mm
Quick Tips & Safety Warnings
- ✅ Always use hub-centric rings (57.1mm ID to wheel's bore) for aftermarket wheels to prevent vibration.
- ✅ Re-torque lug nuts to 90 ft-lb after 50-100 miles; check for proper ball or conical seat engagement.
- ✅ Verify offset: stock is 42mm; offsets 35-45mm typically fit, but test for strut and fender clearance.
- ⚠️ Confirm bolt pattern carefully. 5x112 is often confused with other common 5-lug patterns.
- ⚠️ Torque lugs in a star pattern to 100 ft-lbs (135 Nm), then re-check torque after 50-100 km (30-60 miles).
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1998 Audi A8 — Frequently Asked Questions
What is the bolt pattern for a 1998 Audi A8?
The 1998 Audi A8 uses a 5x112 bolt pattern (also called lug pattern or PCD). The center bore is 57.1mm and the offset is 42mm.
What other years of Audi A8 have the same bolt pattern as the 1998?
The Audi A8 uses the 5x112 pattern from 1997 through 2024. Wheels from any of these model years are dimensionally compatible with the 1998, provided the offset and center bore also match.
What does 42mm offset mean for the 1998 A8?
An offset of 42mm means the wheel's mounting surface is 42mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Audi.
Can I use spacers on my 1998 Audi A8?
Yes, but ensure the wheel spacers match the 5x112 bolt pattern and 57.1mm center bore. Also verify that you have enough thread engagement for your B 14x1.50 hardware.
What is the PCD for a 1998 Audi A8?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 1998 A8, the PCD is 5x112.
Can I put aftermarket wheels on my 1998 Audi A8?
Absolutely. Just ensure the aftermarket wheels have a 5x112 bolt pattern, an offset near 42mm, and a center bore of at least 57.1mm (using hub rings if larger).
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