2020 Mercedes-Benz GLC Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2020 Mercedes-Benz GLC, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x112 |
|---|---|
| Lug Nut / Bolt Size | 14x1.5 |
| Center Bore (CB) | 66.6 mm |
| Offset (ET) | 30-50 |
| Torque Specs | 100 ft-lbs (135 Nm) |
2020 GLC — Year-Specific Fitment Context
The 2020 Mercedes-Benz GLC is in year 5 of 9 using the 5x112 pattern (2016–2024). Wheels from any 2016–2024 Mercedes-Benz GLC are cross-compatible with the 2020 model.
Mercedes-Benz GLC Bolt Pattern by Year
The table below shows how the GLC's wheel specifications have changed over the years. The 2020 model year is highlighted.
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 2020 Mercedes-Benz GLC
For your 2020 Mercedes-Benz GLC, the 5x112 bolt pattern and 66.6mm center bore are critical. Aftermarket wheels must be hub-centric; use hub-centric rings if the bore is larger to prevent vibration. Offset should stay within 30-50mm; deviations risk rubbing or poor handling. Always use 14x1.5 lug nuts with the correct seat type: Mercedes uses ball seats (radius), not conical. Mixing seat types can cause wheel loosening. Verify load rating matches your vehicle's weight. For optimal safety, consult a professional fitter.
Historical Fitment Data Reference
In our dataset, Mercedes-Benz GLC appears from 2016 to 2024 (9 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: 2
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 91.0 mm
Quick Tips & Safety Warnings
- ✅ Re-torque lug nuts after 50-100 miles of driving to ensure proper seating.
- ✅ Avoid using conical seat lug nuts on Mercedes wheels; they require ball seat (radius) lugs.
- ✅ Check for brake caliper clearance when using aftermarket wheels, especially with low offsets.
- ⚠️ 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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2020 Mercedes-Benz GLC — Frequently Asked Questions
What is the bolt pattern for a 2020 Mercedes-Benz GLC?
The 2020 Mercedes-Benz GLC uses a 5x112 bolt pattern (also called lug pattern or PCD). The center bore is 66.6mm and the offset is 30-50mm.
What other years of Mercedes-Benz GLC have the same bolt pattern as the 2020?
The Mercedes-Benz GLC uses the 5x112 pattern from 2016 through 2024. Wheels from any of these model years are dimensionally compatible with the 2020, provided the offset and center bore also match.
Why is matching the 66.6mm center bore important for the 2020 GLC?
The 66.6mm center bore ensures the wheel is perfectly centered on the hub. If the wheel is lug-centric instead of hub-centric, you may experience steering wheel vibration at highway speeds.
How tight should I torque the lug nuts on a 2020 Mercedes-Benz GLC?
Refer to your owner's manual for exact specs, but always tighten the 14x1.5 hardware in a star or crisscross pattern. Re-torque after the first 50 miles of driving.
Do 2020 Mercedes-Benz GLCs use lug bolts or lug nuts?
The 2020 GLC requires 14x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
Can I use spacers on my 2020 Mercedes-Benz GLC?
Yes, but ensure the wheel spacers match the 5x112 bolt pattern and 66.6mm center bore. Also verify that you have enough thread engagement for your 14x1.5 hardware.
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