why does my Tesla Model 3 Highland (2024-present) brake pedal feel spongy when I press it

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface with the parking brake engaged.
• Wear safety goggles and gloves.

2. Check and Top Off Brake Fluid

• Tools Required: Brake fluid, funnel, clean cloth
• Open the hood and locate the master cylinder reservoir.
• Check the brake fluid level; if low, add the recommended brake fluid type (DOT 3 or DOT 4).
• Clean the reservoir cap before removing it to prevent contamination.

3. Inspect Brake Lines and Components

• Tools Required: Wrench set, flashlight
• Visually inspect the brake lines for any signs of leaks or damage.
• Check the brake calipers for fluid leaks.
• Tighten any loose connections or fittings if necessary.

4. Bleed the Brake System

• Tools Required: Brake bleeder kit, clear tubing, wrench
• Attach the clear tubing to the bleeder valve on the caliper.
• Have an assistant pump the brake pedal several times, then hold the pedal down.
• Open the bleeder valve to allow air and fluid to escape, then close it before the pedal is released.
• Repeat this process for each brake caliper until no air bubbles are visible in the fluid.
• Ensure the brake fluid reservoir is kept filled during this process.

5. Inspect Brake Pads and Rotors

• Tools Required: Jack, jack stands, lug wrench
• Lift the vehicle using a jack and secure it with jack stands.
• Remove the wheels to access the brake components.
• Inspect the brake pads for wear; replace if less than 3mm thick.
• Check the rotors for scoring or warping; replace if necessary.