I. Warranty Period Variations Based on Circumstances
1. Manufacturer Warranty: Most automotive brands include brake discs in the vehicle's overall warranty coverage. The warranty period typically aligns with the vehicle warranty-commonly 3 years or 100,000 kilometers (whichever comes first)-though some luxury brands or new energy vehicle models may extend this to 4 years or 120,000 kilometers.
2. Aftermarket Parts Warranty: If brake discs are replaced separately (using non-OEM parts), third-party suppliers or repair shops usually offer a 1–2 year warranty. Warranties for high-end aftermarket parts may extend to 3 years, though it is important to verify whether labor costs are included and to understand the specific conditions for replacement.
3. Special Circumstances: Brake discs that fail due to quality defects (such as cracking or warping) within the warranty period are eligible for free replacement; however, damage caused by human factors (such as excessive wear or vehicle modification) is not covered.
II. Key Factors Affecting Warranty Coverage
1. Usage Conditions: Frequent hard braking and driving with heavy loads accelerate brake disc wear, potentially causing the component to exceed its warranty limits prematurely.
2. Maintenance Records: Regular brake fluid changes and brake system cleaning (e.g., every 20,000–40,000 kilometers) serve as proof of proper usage and can facilitate warranty claims.
3. Modification Restrictions: Installing non-OEM brake discs or modifying the braking system may affect the manufacturer's warranty; some brands may void the warranty for the relevant components.
