Brembo Brake Kit for Mercedes AMG GT SL CLS AMG C Class 390mm

Brembo 6-Piston Calipers | 390mm Floating Rotors | High-Gloss Red/Silver

This Brembo-engineered AMG Brake Kit is the gold standard for Mercedes-Benz stopping power. Found as factory equipment on high-performance “63” models, this setup is designed to handle the extreme heat and kinetic energy of heavy, high-horsepower vehicles.

The 390mm front rotor is the largest “standard” steel brake diameter offered before stepping up to the incredibly expensive Carbon Ceramic (CCB) options.

1. Key Components of the Kit

• Calipers: Brembo 6-piston fixed aluminum monoblock calipers (Finished in Red (Code U70), Silver, or Bronze).

• Rotors: 390mm x 36mm “Composite” rotors. They feature a cast-iron friction surface pinned to an aluminum “top hat” center to reduce unsprung weight and manage heat expansion.

• Pads: High-friction semi-metallic AMG performance pads.  Brembo Brake Kit for Mercedes AMG GT SL CLS AMG C Class 390mm

• Sensors: Electronic wear sensors that integrate with the Mercedes-Benz dash warning system.

2. Vehicle Compatibility

This 390mm kit is the factory specification for the following AMG chassis:

3. Technical Specifications

• Disc Dimensions: $390\text{mm}\times 36\text{mm}$

• Drilling: Cross-drilled and directionally vented for rapid cooling.

• Caliper Type: 6-Piston Fixed (Opposed pistons for even pad pressure).

• Total Weight: Approximately 18kg per front corner (Disc + Caliper).

4. Retrofit & Wheel Clearance Warning

⚠️ Critical Clearance Note: Because of the massive 390mm rotor and the bulky 6-piston caliper, you cannot use wheels smaller than 19 inches.

• Some 19″ wheels with thick “barrel” designs may still interfere with the caliper.

• 20-inch wheels are highly recommended for guaranteed clearance and proper cooling airflow.

5. Installation & Maintenance

• Bedding-in: New 390mm rotors require a specific “bedding” procedure (multiple controlled stops from 100km/h to 20km/h) to transfer a layer of pad material to the disc, preventing future brake squeal.

• Brake Fluid: It is highly recommended to upgrade to DOT 4 Plus or DOT 5.1 high-boiling-point fluid when installing this kit to prevent pedal fade during spirited driving.

• Bracketry: If retrofitting to a non-AMG vehicle (e.g., a standard C300 or E350), you will need specific radial-mount adapters and potentially the AMG-specific steering knuckles.

Why Choose Original Brembo/AMG?

Aftermarket “Big Brake Kits” (BBK) often lack the precise master cylinder piston-ratio matching found in OEM sets. By using the Genuine AMG 390mm kit, you ensure that the ABS, ESP, and Brake Assist systems continue to function exactly as the engineers intended, preventing a “mushy” pedal feel.