How to troubleshoot faulty brakes on a Vauxhall Vivaro?

My Vauxhall Vivaro's brakes are not working properly, they feel spongy and don't seem to respond well. What could be causing this issue and how can it be fixed?

First, make sure to check the brake fluid level and top up if necessary. If the problem persists, it could be a sign of air or moisture in the brake lines. In this case, bleeding the brakes might fix the issue. If not, it could be a problem with the brake pads or calipers. It is recommended to have a mechanic take a look to diagnose the exact cause and replace any faulty parts.

Another possible cause for faulty brakes could be a malfunctioning ABS system. If the ABS light on the dashboard is illuminated, it might be worth checking the ABS sensors and wiring. Again, it's best to have a professional inspect and repair any potential issues.

If your brake pedal feels spongy, it could also be due to air in the brake lines. Bleeding the brakes can help remove any air bubbles and improve braking performance.