my Renault Clio V (2019-Present) brake pedal feels soft what should I check

Solution

1. Preparation

• Gather required tools and parts.
• Ensure the vehicle is on a flat surface and secure it with wheel chocks.
• Wear safety glasses and gloves.

2. Inspect and Refill Brake Fluid

• Tools Required: Brake fluid, funnel.
• Check the brake fluid level in the master cylinder reservoir. If low, refill with the manufacturer's recommended brake fluid type (DOT 4 for most Renaults).
• Safety Warnings: Do not spill brake fluid on painted surfaces as it can damage the paint.

3. Check for Leaks

• Tools Required: Flashlight, rags.
• Visually inspect all brake lines, calipers, and master cylinder for signs of fluid leakage.
• Clean any areas with leaks and replace necessary components (e.g., brake lines or calipers).

4. Inspect Brake Components

• Tools Required: Jack, jack stands, lug wrench, torque wrench.
• Raise the vehicle and remove the wheels.
• Inspect brake pads for thickness (should be at least 3mm) and rotors for wear or warping.
• Replace any worn or damaged brake pads and rotors as needed.

5. Test Brake Booster

• Ensure the engine is off. Press the brake pedal several times to deplete vacuum in the brake booster.
• Start the engine while pressing the brake pedal; it should sink slightly due to the boost. If it does not, the brake booster may need replacement.