Bosch 0986479333 Brake Disc

Bosch 0986479333 Brake Disc

The Bosch 0986479333 Brake Disc is a high‑performance braking component designed for the front axle of Mercedes‑Benz E‑Class models, including the W211 and S211 series. This disc features advanced ventilation, a high carbon content, and an engineered rim profile that delivers superior heat dissipation and consistent stopping power under demanding driving conditions.

Key Technical Specifications

• Diameter: 304 mm (12 inches)
• Thickness: 30 mm (1.18 inches)
• Material Composition: High‑carbon steel alloy with a carbon content of approximately 8–10%
• Ventilation: Multi‑channel drilled and slotted design for optimal airflow
• Surface Finish: Polished outer rim to reduce brake dust and improve heat transfer
• Certification: ECE‑R90 compliant, ensuring compliance with European safety standards
• Compatibility: Designed for the front axle of Mercedes‑Benz E‑Class (W211/S211) models; also suitable for other vehicles requiring a 304 mm front disc with similar mounting specifications.

Design Features and Performance Benefits

The ventilated design incorporates both drilled holes and slotted channels, creating a high‑volume airflow that effectively removes heat from the braking surface. This reduces the risk of brake fade during prolonged or aggressive driving sessions.

The disc’s high‑carbon composition enhances its thermal conductivity while maintaining structural integrity. The carbon content also contributes to a lighter overall weight, which can improve vehicle handling dynamics by reducing unsprung mass.

Its polished rim surface not only provides an aesthetically pleasing finish but also improves the contact interface with brake pads, ensuring even pad wear and consistent braking performance over time.

Installation and Maintenance Guidelines

• Mounting: The disc uses a standard 304 mm mounting flange compatible with most front axle assemblies on the specified Mercedes‑Benz models. Ensure that the hub bore is clean and free of debris before installation.
• Brake Pad Compatibility: Pair with high‑performance brake pads designed for ventilated discs to maximize heat dissipation and reduce pad wear.
• Torque Specifications: Tighten the mounting bolts to the manufacturer’s recommended torque (typically around 80–100 Nm) using a calibrated torque wrench. Perform a full torque sequence in a star pattern to ensure even clamping pressure.
• Inspection: Regularly inspect the disc for signs of wear, glazing, or scoring. Replace if the thickness falls below the minimum safe limit (usually around 24 mm).
• Cleaning: Use a non‑abrasive brake cleaner to remove dust and debris. Avoid using oil or grease on the braking surface.

Applications and Vehicle Compatibility

The Bosch 0986479333 Brake Disc is specifically engineered for the front axle of Mercedes‑Benz E‑Class vehicles, including:

• MERCEDES‑BENZ E‑CLASS (W211)
• MERCEDES‑BENZ E‑CLASS (S211)

Because of its standardized dimensions and mounting interface, the disc can also be adapted to other vehicles that require a 304 mm front brake disc with similar flange geometry. However, always verify compatibility with the vehicle’s braking system before installation.

Quality Assurance and Manufacturing Standards

Bosch is renowned for its stringent quality control processes. Each disc undergoes:

• Dimensional inspection to ensure precise diameter, thickness, and rim profile.
• Material testing to confirm carbon content and alloy composition.
• Heat treatment verification ensuring optimal hardness and thermal properties.
• Functional testing under simulated braking conditions to validate performance metrics such as stopping distance, fade resistance, and pad wear characteristics.

Environmental Considerations

The high‑carbon alloy used in the Bosch 0986479333 Brake Disc is engineered for durability, reducing the frequency of replacement and thereby minimizing waste. Additionally, the disc’s efficient heat dissipation reduces the likelihood of brake pad glazing, which can lead to premature pad wear and increased particulate emissions.

Conclusion

The Bosch 0986479333 Brake Disc delivers a blend of advanced engineering, superior thermal performance, and reliable durability. Its ventilated design, high‑carbon composition, and precise manufacturing make it an ideal choice for drivers seeking consistent braking power and longevity in Mercedes‑Benz E‑Class vehicles or other compatible platforms.