Problem
Soft or spongy brake pedal
![500x370-hydraulics3-DeNoiseAI-standard](https://www.advicsaftermarket.com/wp-content/uploads/2022/09/500x370-hydraulics3-DeNoiseAI-standard.png)
Likely Cause
- There is an air in the brake lines
Solutions
- Check the brake fluid motion inside the brake master cylinder reservoir
- If bubbles are observed inside a reservoir, change the brake fluid
- Perform a brake bleeding