What does a spongy footbrake indicate?

Explanation: If air gets into the hydraulic system, the brake pedal will feel spongy. When you press it, the air is compressed, causing the pedal to move further than normal. As a result, braking efficiency is reduced. Have the system checked by a qualified mechanic: brake faults are too important to be ignored.

Category: Band 2 traffic signs and signals (2021)

References: The Official DVSA Guide to Driving: Section 14