Cylinder Head Bolt - Febi Bilstein - 02499
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eBayFebi Bilstein Head Bolt fits Mercedes Benz - 02499 - OE Equivalent Quality & Fit
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Product Information
Full details
The Febi Bilstein Cylinder Head Bolt (02499) is an essential precision component for automotive technicians and DIY mechanics performing engine block service. Engineered with a high-strength 10.9 grade, this bolt provides the necessary clamping force to maintain engine integrity and seal combustion pressure. While it offers superior durability through its phosphatized surface, users must note that it requires specific torque sequence knowledge and professional-grade tools for proper, safe installation.
All features
| Model Part Number | 02499 |
|---|---|
| Brand | Febi Bilstein |
Extended Product Information
FAQs
Can I reuse these cylinder head bolts?
No. Cylinder head bolts are typically torque-to-yield fasteners and should be replaced with new ones every time the head is removed.
What does 10.9 grade mean?
It is a standard indicating the bolt's tensile strength, confirming it is high-tensile steel suitable for demanding automotive engine applications.
Why is the surface phosphatized?
The phosphatized coating provides excellent corrosion resistance and acts as a base for lubricants, helping the bolt seat properly during high-torque installation.
Do I need a special tool for the Male Star head?
Yes, you must use a compatible Star or E-Torx type socket that fits the specific head profile of the bolt.
How do I ensure these fit my car?
Cross-reference the MPN 02499 with your vehicle's engine code or VIN using the official manufacturer’s parts catalog.
Troubleshooting
Bolt head seems to strip during tightening
Ensure you are using the correct size Male Star socket and that it is fully seated on the bolt head before applying torque.
Bolt feels 'spongy' while tightening
This often indicates the bolt is stretching beyond its limit; stop immediately, verify the bolt is the correct part, and check if the block threads have been damaged.
Pros and Cons
Pros
- High-strength 10.9 steel grade for maximum safety
- Phosphatized finish protects against rust and wear
- Precise OEM-equivalent dimensions for reliable fitment
- Engineered for consistent clamping force
Cons
- Requires specific professional-grade socket for Male Star head
- Installation requires technical knowledge of torque specs
- Not compatible with all engine types; verification required
Setup, Compatibility & Care
Before installation, always verify the part number against your vehicle's service manual or manufacturer catalog, as cylinder head bolts are application-specific. Ensure the engine block threads are clean, dry, and free of debris or old oil, as hydraulic locking can cause damage to the block. We recommend using a new set of bolts every time the cylinder head is removed, as these are often designed as torque-to-yield fasteners. Always follow the manufacturer's specified tightening sequence—typically working from the center outward—to ensure even distribution of pressure across the cylinder head surface.