2018 BMW 4 Series Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2018 BMW 4 Series, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x120 |
|---|---|
| Lug Nut / Bolt Size | 14x1.25 |
| Center Bore (CB) | 72.56 mm |
| Offset (ET) | 30-40 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2018 4 Series — Year-Specific Fitment Context
The 2018 model year is the final year of the BMW 4 Series's 5x120 bolt pattern run (since 2014). Wheels from any 2014–2018 BMW 4 Series are cross-compatible with the 2018 model. Important: starting in 2019, BMW switched to 5x112 — those wheels will not fit the 2018 model. Across its full production run (2014–2024), the 4 Series has also used: 5x112.
BMW 4 Series Bolt Pattern by Year
The table below shows how the 4 Series's wheel specifications have changed over the years. The 2018 model year is highlighted.
5x120 Pattern Context
This bolt pattern appears on 633 vehicles in our current database and is considered common.
Examples of other vehicles using 5x120:
Expert Buying Guide for 2018 BMW 4 Series
For your 2018 BMW 4 Series, the bolt pattern is 5x120 with a center bore of 72.56mm. When selecting aftermarket wheels, ensure they are hub-centric or use hub-centric rings to avoid vibrations. The offset range is 30-40mm; staying within this range prevents rubbing or clearance issues. Always use lug nuts with the correct thread pitch (14x1.25) and seat type—conical (60-degree) or ball seat—matching the wheel manufacturer's specifications. Improper lug nuts can lead to wheel loosening or damage. Note that 2019+ 4 Series models use 5x112, which are incompatible.
Historical Fitment Data Reference
In our dataset, BMW 4 Series appears from 2014 to 2024 (11 model years). Across model years, this model appears with 2 bolt patterns (5x112, 5x120).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 2
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 70.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ If using aftermarket wheels, verify the center bore matches 72.56mm or use hub-centric rings to prevent vibrations.
- ✅ Avoid wheels from 2019+ 4 Series (5x112) as they will not fit your 5x120 pattern.
- ⚠️ Confirm bolt pattern carefully. 5x120 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).
- ⚠️ This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
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2018 BMW 4 Series — Frequently Asked Questions
What is the bolt pattern for a 2018 BMW 4 Series?
The 2018 BMW 4 Series uses a 5x120 bolt pattern (also called lug pattern or PCD). The center bore is 72.56mm and the offset is 30-40mm.
What other years of BMW 4 Series have the same bolt pattern as the 2018?
The BMW 4 Series uses the 5x120 pattern from 2014 through 2018. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
Will 2019 BMW 4 Series wheels fit a 2018 model?
No. The 2019 BMW 4 Series switched to a 5x112 bolt pattern, which is not compatible with the 2018 model's 5x120. Using mismatched patterns is unsafe.
How tight should I torque the lug nuts on a 2018 BMW 4 Series?
Refer to your owner's manual for exact specs, but always tighten the 14x1.25 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
What is the center bore of a 2018 BMW 4 Series?
The factory center bore (hub bore) for the 2018 BMW 4 Series is 72.56mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What is the PCD for a 2018 BMW 4 Series?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2018 4 Series, the PCD is 5x120.
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