Dynamite Friction 4502-31215 Disc Brake Kit - Front

Front Brake Kit for BMW 640i and ActiveHybrid 5

The DFC GEOSPEC Rotors with 5000 Advanced Brake Pads kit is a front disc brake service kit built for select BMW applications from 2012-2019. Part number 4502-31215 combines coated rotors and advanced friction pads in one package for a direct brake service on the front axle.

Designed for BMW 640i, BMW 640i Gran Coupe, BMW 640i xDrive Gran Coupe, and BMW ActiveHybrid 5 front brake service, this kit focuses on OE-style fitment, stable braking feel, and reduced prep time during installation.

Key Features

• Front disc brake kit with rotors and pads
• DFC GEOSPEC coated rotors with silver-gray corrosion-resistant finish
• Dry-processed rotors ready to install without oil cleanup
• Non-directional rotor finish for even pad bed-in and smoother stops
• 5000 Advanced Brake Pads with post-cured friction material
• Scorched pads to reduce initial break-in time
• Rubber-steel-rubber shims for improved noise, vibration, and harshness control
• OE-spec cast iron rotor construction and tight machining tolerances

Product Details

DFC GEOSPEC Rotors with 5000 Advanced Brake Pads are engineered as a complete front brake service solution for BMW 640i and ActiveHybrid 5 models. The rotors use a coated finish that helps resist rust better than conventional paint or zinc coatings, while the dry packaging process eliminates the need to clean off protective oil before installation. The pads are post cured and scorched to support consistent friction performance from the first stop, and the shim design helps reduce brake noise and harshness.

Part number 4502-31215 is a practical choice for drivers searching for a front brake kit for 2012-2018 BMW 640i, a front brake kit for 2013-2019 BMW 640i Gran Coupe, or a front brake kit for 2012-2016 BMW ActiveHybrid 5. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Service Issues

• Front brake pulsation from worn or uneven rotors
• Squealing or noise during braking
• Reduced stopping response from worn pads
• Rust buildup on exposed rotor surfaces
• Longer service time caused by oil-coated replacement rotors

Installation Notes

Fits 2013-2019 BMW 640i Gran Coupe, front. Fits 2014-2019 BMW 640i xDrive Gran Coupe, front. Fits 2012-2018 BMW 640i, front. Fits 2012-2016 BMW ActiveHybrid 5, front. Some applications note compatibility with aluminum hat rotors designed to original specifications and include a disc brake pad wear sensor; other applications note an optional full cast rotor design. Verify the rotor style and sensor requirements before installation.

For best results, inspect caliper condition, pad wear sensor routing, and hub surfaces before fitting the new components. Follow standard brake bedding procedures after installation to help the pads and rotors seat evenly.

Quality Assurance

DFC GEOSPEC rotors are machined to OE specifications, inspected for critical dimensions, and balanced where required. Each rotor includes a 12-month warranty against defects in material and workmanship.