2018 Audi A4 Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2018 Audi A4, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x112 |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 66.5 mm |
| Offset (ET) | 30-45 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2018 A4 — Year-Specific Fitment Context
The 2018 Audi A4 is in year 23 of 29 using the 5x112 pattern (1996–2024). Wheels from any 1996–2024 Audi A4 are cross-compatible with the 2018 model.
Audi A4 Bolt Pattern by Year
The table below shows how the A4's wheel specifications have changed over the years. The 2018 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 1996 | 5x112 | 57.1 | 45 |
| 1997 | 5x112 | 57.1 | 45 |
| 1998 | 5x112 | 57.1 | 45 |
| 1999 | 5x112 | 57.1 | 45 |
| 2000 | 5x112 | 57.1 | 45 |
| 2001 | 5x112 | 57.1 | 45 |
| 2002 | 5x112 | 57.1 | 45 |
| 2003 | 5x112 | 57.1 | 45 |
| 2004 | 5x112 | 57.1 | 45 |
| 2005 | 5x112 | 57.1 | 45 |
| 2006 | 5x112 | 57.1 | 45 |
| 2007 | 5x112 | 57.1 | 45 |
| 2008 | 5x112 | 57.1 | 45 |
| 2009 | 5x112 | 57.1 | 45 |
| 2010 | 5x112 | 66.6 | 45 |
| 2011 | 5x112 | 66.6 | 45 |
| 2012 | 5x112 | 66.6 | 45 |
| 2013 | 5x112 | 66.6 | 45 |
| 2014 | 5x112 | 66.6 | 45 |
| 2015 | 5x112 | 66.6 | 45 |
| 2016 | 5x112 | 66.6 | 45 |
| 2017 | 5x112 | 66.6 | 45 |
| ▸ 2018 | 5x112 | 66.5 | 30-45 |
| 2019 | 5x112 | 66.5 | 30-45 |
| 2020 | 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 2018 Audi A4
For your 2018 Audi A4, the 5x112 bolt pattern and 66.5mm center bore are critical. Aftermarket wheels must use hub-centric rings to prevent vibrations and ensure proper load transfer. The offset range of 30-45mm is sensitive; straying outside can cause rubbing or clearance issues. Always verify lug nut thread pitch (14x1.5) and seat type—Audi uses ball seats, not conical. Using incorrect lug nuts risks wheel detachment. Stick to OEM or verified aftermarket specs for safety.
Historical Fitment Data Reference
In our dataset, Audi A4 appears from 1996 to 2024 (29 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: 90.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts to 90 ft-lb after 50 miles of driving.
- ✅ Avoid using conical seat lug nuts; Audi requires ball seat (radius) for proper fit.
- ✅ Check inner clearance with 30mm offset; lower offsets may rub on suspension components.
- ⚠️ Confirm bolt pattern carefully. 5x112 is often confused with other common 5-lug patterns.
- ⚠️ This fitment uses a wide offset range. Check brake clearance and fender clearance before buying wheels.
- ⚠️ 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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2018 Audi A4 — Frequently Asked Questions
What is the bolt pattern for a 2018 Audi A4?
The 2018 Audi A4 uses a 5x112 bolt pattern (also called lug pattern or PCD). The center bore is 66.5mm and the offset is 30-45mm.
What other years of Audi A4 have the same bolt pattern as the 2018?
The Audi A4 uses the 5x112 pattern from 1996 through 2024. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
Can I put aftermarket wheels on my 2018 Audi A4?
Absolutely. Just ensure the aftermarket wheels have a 5x112 bolt pattern, an offset near 30-45mm, and a center bore of at least 66.5mm (using hub rings if larger).
What does 30-45mm offset mean for the 2018 A4?
An offset of 30-45mm means the wheel's mounting surface is 30-45mm 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 2018 Audi A4?
Yes, but ensure the wheel spacers match the 5x112 bolt pattern and 66.5mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
How do I measure the bolt pattern on my 2018 Audi?
The 2018 A4 uses a 5x112 pattern. For 4, 6, or 8-lug wheels, measure center-to-center across opposite holes. For 5-lug, measure from the center of one hole to the back of the opposite hole.
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