Brembo OE Rear Disc Brake Kit Mercedes-Benz AMG and E-Class Platform

Factory-Grade Rear Brake Confidence for the Mercedes-Benz AMG and E-Class Platform

The Brembo BREKT04523 is a complete OE rear disc brake kit engineered for the 2017-2018 Mercedes-Benz E43 AMG, the 2019 E53 AMG, and the 2019-2022 CLS53 AMG, CLS450, and E450. Brembo supplies brake components directly to Mercedes-Benz on the production line, and the BREKT04523 brings that same engineering to the aftermarket in a single box with everything needed for a full rear brake service. The kit includes two rear rotors and a complete set of rear brake pads matched to the factory specification for these AMG and luxury E-Class and CLS platforms.

What Makes the BREKT04523 a True OE Replacement

Brembo manufactures the BREKT04523 rotors from the same high-carbon cast iron used by Mercedes-Benz on the production line. High-carbon iron provides a higher damping coefficient than standard grey iron, which translates directly to reduced brake vibration and noise, improved pedal feel, and better heat dissipation during hard stops. The Prime low-metallic brake pads included in the BREKT04523 kit are formulated to match OE friction characteristics, delivering controlled stopping power across cold and hot operating temperatures without the harsh break-in period associated with performance compounds. All fixing hardware is included so installation requires no sourcing of additional fasteners.

Key Features

• Complete rear brake kit includes two high-carbon OE-specification rear rotors and a full set of Prime low-metallic rear brake pads
• Brembo high-carbon cast iron rotors provide superior vibration damping, reduced brake noise, and faster heat dissipation compared to standard grey iron
• Prime low-metallic pads deliver OE-matched friction performance across cold and hot operating temperatures
• Direct OE fitment for the 2017-2018 Mercedes-Benz E43 AMG, 2019 E53 AMG, 2019-2022 E450, 2019-2021 CLS53 AMG, and 2019-2022 CLS450
• All rotor fixing hardware included for a complete installation without additional sourcing
• Brembo is the original equipment brake supplier to Mercedes-Benz, making the BREKT04523 a true factory-matched replacement
• UV-coated rotor finish resists corrosion during shipping and storage, protecting the rotor surface before installation
• Drop-in fitment to factory mounting points, no drilling, cutting, or modification required

Fitment

Specifications

What's Included

• 2x Brembo high-carbon OE-specification rear brake rotors
• 1x set Brembo Prime low-metallic rear brake pads
• Rotor fixing hardware kit

About Brembo

Brembo is the world's leading manufacturer of automotive braking systems and a trusted OE supplier to Mercedes-Benz, Ferrari, Porsche, BMW, and virtually every major performance and luxury automaker. Founded in 1961 in Bergamo, Italy, Brembo engineers every component to the same exacting standards used on production lines worldwide. The BREKT04523 is manufactured using the same materials and processes as the factory components it replaces, ensuring a direct-fit, factory-matched braking experience.

Frequently Asked Questions

The BREKT04523 fits the 2017-2018 Mercedes-Benz E43 AMG, 2019 Mercedes-Benz E53 AMG, 2019-2022 Mercedes-Benz E450, 2019-2021 Mercedes-Benz CLS53 AMG, and the 2019-2022 Mercedes-Benz CLS450. Confirm your exact model year and trim before ordering.

Yes. The BREKT04523 is a complete rear disc brake kit that includes two rear rotors and a full set of rear brake pads. All rotor fixing hardware is also included. No additional components need to be sourced for a complete rear brake service.

Yes. Brembo is one of the primary OE brake suppliers to Mercedes-Benz and manufactures the BREKT04523 using the same high-carbon cast iron rotor material and low-metallic pad compounds used on the production line. This makes the BREKT04523 a true factory-matched replacement rather than an aftermarket approximation.

High-carbon cast iron, which Brembo uses in the BREKT04523, has a higher damping coefficient than standard grey iron. This means better vibration absorption, reduced brake noise, improved pedal feel, and faster heat transfer away from the braking surfaces. The result is more consistent stopping performance and longer rotor life under normal driving conditions.

Yes. After installation, perform a series of moderate brake applications from highway speed to allow the pad material to transfer evenly onto the rotor surface. Avoid hard stops for the first 200 miles. Proper bedding improves pad-to-rotor contact, maximizes stopping power, and reduces the chance of uneven pad deposits that cause vibration or noise.

Yes. The BREKT04523 is a direct OE-specification replacement that fits the factory rotor mounting points and caliper bracket. It is dimensioned identically to the original rotors and will fit under factory and OEM-equivalent wheels without modification.

The BREKT04523 is a direct bolt-on replacement. The kit includes all fixing hardware. A basic socket set, torque wrench, jack stands, and brake pad spreader tool are all that is typically required. Brembo recommends following factory torque specifications for caliper bolts and wheel fasteners. If you are unfamiliar with brake service procedures, installation by a qualified technician is recommended.

Yes. Brembo OE replacement components are backed by a limited warranty covering defects in materials and workmanship. Contact your point of purchase for specific warranty terms and claim procedures.

The UV coating on the BREKT04523 rotors protects the rotor surface from corrosion during shipping and storage. It burns off during normal brake operation in the first few uses and does not affect braking performance. The coating prevents rust from developing on the rotor before installation, which can affect pad seating if left unaddressed.

Installation Instructions

1. Safely raise the vehicle on a lift or secure jack stands and remove the rear wheels.
2. Remove the rear brake caliper by unbolting the caliper mounting bolts and hang the caliper from a hook without stressing the brake line.
3. Remove the caliper bracket by unbolting the bracket mounting bolts from the knuckle.
4. Remove the old rear rotor. If stuck, use a rubber mallet to break it free from the hub.
5. Clean the hub face thoroughly with a wire brush and brake cleaner before installing the new rotor.
6. Install the new BREKT04523 rear rotor onto the hub and secure with a lug nut to hold it flush while mounting the caliper bracket.
7. Install the caliper bracket and torque to factory specification.
8. Remove the old brake pads from the caliper carrier and install the new Brembo Prime pads. Lubricate pad contact points with brake lubricant, not the pad face.
9. Compress the rear caliper piston fully using a brake caliper wind-back tool (rear pistons on AMG platforms typically require rotation to compress).
10. Reinstall the caliper over the new pads and torque caliper bolts to factory specification.
11. Reinstall the wheel and torque wheel fasteners to factory specification.
12. Pump the brake pedal until firm before moving the vehicle. Check brake fluid level and top off if needed.
13. Perform a proper bedding procedure: 5 to 10 moderate stops from 40 mph, allowing the brakes to cool between each stop, before returning to normal driving.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.