Rear Brake Kit for BMW 530e, 530i, X3, and X4

The DFC GEOSPEC Coated Rotors with 5000 Advanced Brake Pads - Low Metallic and Hardware Kit, part number 4512-31122, is a rear disc brake service kit built for select BMW applications. It combines coated rotors, low metallic pads, and brake hardware in one package for a complete rear brake refresh.

Compatible With 2018-2022 BMW 530e, 2018-2022 BMW 530e xDrive, 2021-2022 BMW 530i, 2021-2022 BMW 530i xDrive, 2020-2021 BMW X3, 2021-2022 BMW X4, and 2018-2020 BMW 520i rear brake applications. Part number 4512-31122 is listed for multiple rear brake configurations, including standard brake setups and model-specific rotor designs.

Key Features

• DFC GEOSPEC coated rotors with a silver-gray corrosion-resistant finish
• Dry-processed, dry-shipped rotors ready for installation
• Non-directional rotor finish for more even pad bed-in and smoother braking
• G3000/G11H18 cast iron rotor construction engineered to OE specifications
• 100% inspected rotors with balance correction on vented designs
• DFC 5000 Advanced low metallic brake pads with post-cured friction material
• Scorched pads to reduce initial break-in time
• Premium rubber-steel-rubber shims for improved noise, vibration, and harshness control
• Brake hardware kit with PTFE coating, vulcanized rubber, and stainless steel components

Product Details

DFC built this brake service kit to address the full rear braking system, not just the friction surface. The coated rotors are designed to resist rust better than conventional painted or zinc-coated rotors, while the pad compound is formulated for stable friction performance and consistent stopping response. The included hardware is engineered to restore proper caliper movement and spring tension where worn or corroded hardware can create noise, uneven wear, or reduced braking feel.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Kit Can Address

• Rear brake noise from worn pads or fatigued hardware
• Uneven or premature pad wear caused by corroded clips and springs
• Brake pulsation related to worn rear rotors
• Reduced braking consistency from aged friction material
• Rust buildup on exposed rotor surfaces

Installation Notes and Tips

Verify rotor design and brake configuration before ordering, especially on BMW 530i, BMW X3, and BMW X4 rear applications with standard or optional brake setups. Clean hub surfaces thoroughly before installation, and follow proper torque procedures during assembly. The rotors are shipped dry and do not require oil removal before installation.

Quality Assurance

DFC machines each rotor to tight tolerances, checks critical dimensions, and inspects finished parts for balance and OE-spec compliance. The rotors include a 12-month warranty against defects in material and workmanship.