Elring 104.930 Nuts and Bolts

Elring 104.930 Nuts and Bolts: Precision Engineered for Cylinder Head Applications

The Elring 104.930 is a high‑performance bolt set specifically designed for the cylinder head of Volkswagen, Audi, Seat, Skoda, and related models. This kit delivers reliable fastening strength, ensuring optimal compression and engine durability across a wide range of engines, including the popular 1.8 L 20V variants.

Key Features

• Material Quality: Made from high‑strength alloy steel, treated with advanced heat‑treatment processes to resist fatigue and corrosion under extreme engine temperatures.
• Thread Specification: M11 × 1.5 threads, matching the original factory design for a secure fit on all compatible cylinder heads.
Length & Diameter: Each bolt measures 96 mm, providing the correct length to engage the full depth of the head gasket and engine block.
• Torque Requirements: Designed for precise torque settings (typically 120–140 Nm), ensuring even clamping force across all studs.
• Compatibility: Fits a broad range of models: Audi A4, A6, Cabriolet, Volkswagen Passat Variant, B5, and other Polydrive platforms (3B2, 3B3, 3B5).
• Installation Ease: Pre‑torqued in the factory, these bolts simplify rebuilds and head replacements.

Applications & Supported Models

The Elring 104.930 is engineered for engines that require a robust cylinder head fastening solution. Commonly used on:

• Audi A4 (8D2, B5) – 1.8 L 20V, 1995‑2002 models.
• Audi A6 (C4, C5) – 1.8 L 20V, 1999‑2007 variants.
• Volkswagen Passat Variant (3B5) – 1.8 L 20V, 1999‑2002 models.
• Volkswagen Passat B5 – 1.8 L 20V, 1994‑2000 variants.
• Seat and Skoda models sharing the same engine architecture.

Installation Guidelines

1. Preparation: Clean all mating surfaces thoroughly. Remove any old gasket material and inspect for damage.
2. Gasket Placement: Install a new high‑quality head gasket, ensuring correct orientation.
3. Bolt Seating: Place the Elring 104.930 bolts into their respective holes, aligning them with the cylinder head studs.
4. Tightening Sequence: Follow the manufacturer’s recommended torque sequence (typically a crisscross pattern) to achieve even pressure distribution.
5. Final Torque Check: Use a calibrated torque wrench to verify each bolt meets the specified torque value.

Maintenance & Longevity

These bolts are designed for long‑term service life. However, regular inspection during routine maintenance is advised. Look for signs of:

• Thread Wear: Slight loosening or cross‑threading.
• Corrosion: Surface rust or pitting.
• Bolt Deformation: Visible bending or distortion.

If any of these issues are detected, replace the affected bolts immediately to prevent head gasket failure and engine damage.

Why Choose Elring 104.930?

• OEM Quality Assurance: Meets or exceeds original equipment specifications.
• Consistent Performance: Maintains compression integrity under high operating temperatures.
• Reliability: Proven track record in both European and global markets.
• Ease of Replacement: Standardized dimensions allow for quick swaps during rebuilds.

Conclusion

The Elring 104.930 Nuts and Bolts represent a critical component in the engine assembly, ensuring that cylinder heads remain securely fastened under demanding conditions. Their precise engineering, durable material composition, and broad compatibility make them an essential choice for anyone working on Volkswagen, Audi, Seat, or Skoda engines within the specified model range.