Using brake cleaner on disc brakes involves spraying the cleaner onto the brake components to dissolve dirt and grime, often requiring manual action to ensure coverage.
Cleaning your disc brakes with brake cleaner is a common maintenance task that helps remove dirt, oil, and brake dust, which can affect performance and cause noise. The process is generally straightforward, but specific techniques can improve effectiveness, especially if the brake components like the caliper are not fully disassembled.
Here's a breakdown of how to use brake cleaner effectively:
Steps for Cleaning Your Disc Brakes
- Safety First: Ensure the vehicle is parked on a level surface and secured. Consider wearing safety glasses and gloves, as brake cleaner is a strong chemical.
- Position for Access: If you are not removing the wheel or caliper, turn the steering wheel to gain better access to the brake assembly.
- Apply Cleaner: Spray the brake cleaner directly onto the brake disc (rotor) surface, the brake pads (if visible), and around the caliper assembly.
- Ensure Full Coverage (Especially Behind Caliper): If you have not disassembled the brake caliper, it can block access to parts of the disc. As noted in maintenance guides, you should move the disc manually to spread the cleaner on the area behind it. This helps the cleaner reach and work on grime hidden by the caliper.
- Allow Dwell Time: Let the cleaner sit for a few moments to allow it to penetrate and dissolve the dirt and grime.
- Agitate Stubborn Dirt: With a brush or a cloth, rub to remove the adhering dirt, particularly on areas with heavy buildup. Use a stiff brush for tougher spots on the caliper or carrier, and a clean rag for the disc surface.
- Rinse (Optional, Check Product): Some cleaners evaporate quickly and don't require rinsing. Others might recommend a second light spray or a wipe-down. Always check the product instructions.
- Allow to Dry: Let the components air dry completely before operating the vehicle. Brake cleaner evaporates quickly, but ensuring everything is dry prevents potential issues.
- Test Brakes: After cleaning, pump the brake pedal a few times to restore pressure and then perform a test drive in a safe area to ensure the brakes are functioning correctly.
Important Tips & Safety
- Use brake cleaner specifically designed for brake systems.
- Avoid spraying painted surfaces or rubber components, as some cleaners can damage them.
- Work in a well-ventilated area due to the strong fumes.
- Never apply lubricants or other sprays not intended for brakes to the disc surface or pads.
By following these steps, including manually rotating the disc when the caliper is in place to ensure the cleaner reaches all parts of the brake disc, you can effectively clean your disc brakes and help maintain their performance.
