LAMBORGHINI URUS S CERAMIC BRAKE SYSTEM BRAKE TOP

Lamborghini Urus S continues to feature the world-class Carbon Ceramic Brake (CCB) system as standard equipment. When referring to the “top” of the system, this typically indicates the primary front axle components, which handle the majority of the braking force for this $2.2\text{-ton}$ SUV.

The “top-tier” components of the Urus S braking system are the massive $440\text{mm}$ front rotors and the 10-piston calipers.

1. Core “Top” Components & Specifications

The Rotors (Front)

• Size: $440\text{mm} \times 40\text{mm}$.

• Material: Carbon fiber-reinforced silicon carbide.

• Part Number: 4ML615301G (or latest revision J).

• Performance: Designed to remain fade-free at temperatures exceeding $800°\text{C}$ ($1,472°\text{F}$).

The Calipers

• Type: 10-piston aluminum monoblock (the “Top” of the range in terms of piston count).

• Colors: Available in Silver, Yellow, Black, Orange, Red, and Green.

• Branding: Feature the “Lamborghini” script and the CCB designation.

2. 2026 Market Pricing (Estimated USD)

Maintaining the “top” of the brake system is one of the highest service costs for a Urus S owner.

3. Wear Limits: When is it time to replace?

The “Top” of the system doesn’t wear like steel. You must look for these indicators:

• Minimum Weight: Each rotor has a Minimum Weight (Min Wt) engraved on the center hat. If the rotor weighs less than this value (due to internal carbon oxidation), it is functionally “empty” and must be replaced.

• Surface Texture: If the “top” layer of the disc feels rough like sandpaper or shows dark spots (pitting), the ceramic layer is failing.

• Thickness: While less critical than weight, the minimum thickness for the front $440\text{mm}$ disc is usually around $39.4\text{mm}$ (from a starting $40\text{mm}$).

4. Technical Maintenance Tip

• The Brake Fluid: The CCB system on the Urus S requires a specific high-boiling-point fluid (typically DOT 4 Low Viscosity or DOT 5.1). In 2026, it is recommended to flush this fluid every 2 years regardless of mileage to prevent moisture from boiling during aggressive “top-speed” braking maneuvers.

• The “Bedding” Process: If you replace the “top” components (discs and pads), they must be “bedded in” through a series of controlled high-speed decelerations to transfer a layer of pad material onto the disc surface.

5. Where to Purchase

• Lamborghini Accessori Originali: For guaranteed authentic parts.

• Scuderia Car Parts: A primary international distributor for 4ML part numbers.

• Eurospares: Excellent for finding “New Old Stock” or verified low-mileage components