Why pump brake pedal on vw cabriolet?

Pumping the brake pedal on a VW Cabriolet can help restore brake pressure in cases where the brake system has lost pressure, such as after replacing brake fluid or when air has entered the brake lines. This action can help to re-engage the brake master cylinder and bleed any trapped air out of the system, ensuring that the brakes respond effectively. However, it's important to check for any underlying issues if the brakes feel spongy, as this can indicate a more serious problem. Regular maintenance and inspections are essential for safe braking performance.