Soft or spongy brake pedal
A brake pedal that feels soft, travels further than normal or slowly sinks to the floor is a safety problem. Do not drive until it is checked.
Can I keep driving? Stop driving as soon as it is safe. Continuing can cause severe engine or transmission damage.
Common causes
Air in the brake lines
Air compresses, so the pedal feels spongy. Common after brake work.
Old brake fluid
Brake fluid absorbs moisture over time, which can boil under hard braking and create vapour.
Brake fluid leak
Check around each wheel, the hoses and the master cylinder for wet spots.
Failing master cylinder
A pedal that slowly sinks while held at a stop often means internal leakage in the master cylinder.
Worn pads or rear brakes out of adjustment
Extra pedal travel before the brakes bite.
What to check
- Check the brake fluid level in the reservoir.
- Look for leaks at each wheel and along the brake lines.
- Have the system bled and the fluid replaced if it is old.
- Have the master cylinder tested if the pedal sinks.
Repair guides
Other brakes & steering problems
General guidance only. A qualified technician can confirm the cause; brakes, steering and fuel leaks should be checked professionally if in doubt.