2009 Mercedes-Benz CLK-Class Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2009 Mercedes-Benz CLK-Class, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x112 |
|---|---|
| Lug Nut / Bolt Size | B 12x1.50 |
| Center Bore (CB) | 66.6 mm |
| Offset (ET) | 37 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2009 CLK-Class — Year-Specific Fitment Context
The 2009 model year is the final year of the Mercedes-Benz CLK-Class's 5x112 bolt pattern run (since 1998). Wheels from any 1998–2009 Mercedes-Benz CLK-Class are cross-compatible with the 2009 model.
Mercedes-Benz CLK-Class Bolt Pattern by Year
The table below shows how the CLK-Class's wheel specifications have changed over the years. The 2009 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 2009 Mercedes-Benz CLK-Class
For your 2009 Mercedes-Benz CLK-Class, the bolt pattern is 5x112 with a center bore of 66.6mm. When selecting aftermarket wheels, ensure the center bore matches or use hub-centric rings to prevent vibration. The offset is critical: stock is around 37mm. Deviating more than ±5mm may cause rubbing or clearance issues. Always use the correct lug nuts: B 12x1.50 thread pitch with ball seat (Mercedes-specific). Using incorrect lug nuts (e.g., conical) can lead to wheel loosening. Re-torque after 50 miles of driving. Note: 1998–2009 CLK wheels are cross-compatible, but verify offset and bore.
Historical Fitment Data Reference
In our dataset, Mercedes-Benz CLK-Class appears from 1998 to 2009 (12 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: 1
- Observed lug-size variants for this model: 1
- Observed total offset span across years: 0.0 mm
Quick Tips & Safety Warnings
- ✅ Always use ball-seat lug nuts (not conical) to match Mercedes wheel seats; conical nuts can damage the wheel and cause failure.
- ✅ After installing new wheels, re-torque lug nuts to 110 Nm (81 lb-ft) after 50 miles of driving to ensure proper seating.
- ✅ If using aftermarket wheels with a larger center bore, install hub-centric rings (66.6mm ID to wheel's bore OD) to avoid vibrations.
- ⚠️ Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- ⚠️ Confirm bolt pattern carefully. 5x112 is often confused with other common 5-lug patterns.
- ⚠️ Torque lugs in a star pattern to 80 ft-lbs (108 Nm), then re-check torque after 50-100 km (30-60 miles).
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2009 Mercedes-Benz CLK-Class — Frequently Asked Questions
What is the bolt pattern for a 2009 Mercedes-Benz CLK-Class?
The 2009 Mercedes-Benz CLK-Class uses a 5x112 bolt pattern (also called lug pattern or PCD). The center bore is 66.6mm and the offset is 37mm.
What other years of Mercedes-Benz CLK-Class have the same bolt pattern as the 2009?
The Mercedes-Benz CLK-Class uses the 5x112 pattern from 1998 through 2009. Wheels from any of these model years are dimensionally compatible with the 2009, provided the offset and center bore also match.
What is the center bore of a 2009 Mercedes-Benz CLK-Class?
The factory center bore (hub bore) for the 2009 Mercedes-Benz CLK-Class is 66.6mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
Do 2009 Mercedes-Benz CLK-Classs use lug bolts or lug nuts?
The 2009 CLK-Class requires B 12x1.50 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
What is the PCD for a 2009 Mercedes-Benz CLK-Class?
PCD stands for Pitch Circle Diameter, which is the same as the bolt pattern. For the 2009 CLK-Class, the PCD is 5x112.
What does 37mm offset mean for the 2009 CLK-Class?
An offset of 37mm means the wheel's mounting surface is 37mm away from its centerline. Changing this value drastically can affect suspension geometry and wheel bearing wear on your Mercedes-Benz.
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