Bosch 0986479446 Brake Disc

Bosch 0986479446 Brake Disc – Premium Performance for Renault Laguna and Latitude Models

The Bosch 0986479446 Brake Disc is a high‑quality, OEM‑approved disc designed specifically for the rear axle of the Renault Laguna III, Laguna Grandtour, and Latitude Limousine. Manufactured with Bosch’s renowned precision engineering, this disc delivers reliable stopping power, durability, and consistent performance in a wide range of driving conditions.

Key Technical Specifications

• Diameter: 300 mm (11.81 inches)
• Thickness: 11 mm (0.43 inches)
• Inner Diameter (hole): 114.3 mm (4.5 inches) – compatible with standard rear wheel hubs
• Material Composition: High‑strength steel alloy with a hardened surface layer for wear resistance
• Weight: Approximately 1.2 kg per disc, ensuring minimal unsprung mass impact
• Certification: ECE R90 – meets European safety and performance standards for automotive brake components
• Package: Single disc (one piece) – typically sold in pairs for rear axle installation

Design Features & Performance Benefits

The Bosch 0986479446 is engineered with a solid, full‑disc construction, providing uniform heat distribution during braking. This design reduces the risk of brake fade and ensures consistent stopping performance even under heavy load or prolonged use.

• Heat Management: The disc’s thickness and material allow for efficient dissipation of thermal energy, maintaining optimal friction levels.
• Corrosion Resistance: Protective coating resists rust and oxidation, extending the life of the brake system in varied climates.
• Compatibility: Designed to fit the original rear wheel hub and caliper mounting points on the specified Renault models without modification.
• Ease of Installation: Standard bolt pattern and dimensions allow for straightforward replacement by technicians or knowledgeable DIYers.

Installation Guidelines

Replacing a rear brake disc is a critical maintenance task that should be performed with care. Follow these steps to ensure proper fitment and safety:

1. Safety First: Secure the vehicle on a flat surface, engage the parking brake, and place wheel chocks behind the front wheels.
2. Remove the Wheel: Use a lug wrench or impact gun to loosen and remove the rear wheel. Keep all fasteners in an organized container.
3. Detach the Caliper: Loosen the caliper mounting bolts, then carefully slide the caliper away from the disc. Support it with a jack stand or caliper hanger to avoid strain on brake lines.
4. Remove the Old Disc: If the disc is bonded to the hub by rust or corrosion, use a hammer and punch or a disc removal tool to gently tap it free. Avoid damaging the hub surface.
5. Install the New Disc: Place the Bosch 0986479446 onto the hub, aligning the mounting holes with the hub’s bolt pattern. Tighten the mounting bolts in a star‑pattern sequence to ensure even pressure.
6. Reattach the Caliper: Position the caliper over the new disc and secure it with the original bolts. Verify that the brake pads sit correctly against the disc surface.
7. Wheel Reassembly: Replace the wheel, hand‑tighten the lug nuts, lower the vehicle, then torque the lug nuts to the manufacturer’s specification using a calibrated torque wrench.
8. Brake Fluid Check: Inspect the brake fluid level and condition. If necessary, top up or replace the fluid according to the vehicle’s service schedule.
9. Test Drive: After installation, perform a short test drive at low speed to confirm that braking feels smooth and responsive. Listen for any unusual noises such as squealing or grinding.

Maintenance & Longevity Tips

To maximize the lifespan of your Bosch 0986479446 Brake Disc, adhere to these best practices:

• Regular Inspection: Check for signs of wear, cracks, or uneven surface texture during routine brake system inspections.
• Brake Pad Compatibility: Use high‑quality brake pads that match the disc’s specifications. Mismatched pads can accelerate disc wear.
• Avoid Overheating: In heavy traffic or hilly terrain, use engine braking and avoid prolonged hard stops to reduce heat buildup.
• Cleanliness: Keep the disc surface free from debris, oil, or brake dust. Use a non‑abrasive cleaner if necessary.
• Professional Service: If you notice any irregularities in braking performance, have the system inspected by a qualified technician promptly.

Why Choose Bosch?

Bosch is synonymous with automotive reliability and innovation. The 0986479446 Brake Disc benefits from:

• Precision Manufacturing: Tight tolerances ensure a perfect fit and optimal heat transfer.
• Rigorous Testing: Each disc undergoes extensive quality control to meet or exceed OEM standards.
• Global Support: Bosch’s worldwide network provides technical resources and documentation for maintenance professionals.

Compatibility Summary

The Bosch 0986479446 is specifically engineered for the following Renault models, ensuring seamless integration with existing brake components:

• Renault Laguna III (2007‑2012) – rear axle
• Renault Laguna Grandtour (KT0/1)
• Renault Latitude Limousine (L70_)

When selecting a replacement disc, verify that the vehicle’s year, model, and trim match one of the above specifications to guarantee optimal performance.

Conclusion

The Bosch 0986479446 Brake Disc represents a blend of engineering excellence, durability, and safety. Whether you’re maintaining an older Renault Laguna or ensuring your Latitude remains road‑ready, this disc delivers the stopping power and reliability that drivers expect from a trusted automotive brand.

By following proper installation procedures and maintenance guidelines, owners can enjoy consistent braking performance for years to come.