Your vehicle is fitted with air-assisted hydraulic brakes. What fault would you suspect if the brake pedal becomes hard to press?
A fault in the air compressor could be the cause of a stiff brake pedal. There could also be a leaking connection allowing air to leak out of the compressed air system. Do not continue your journey until the fault has been fixed.
Tap the Next PCV theory test question button to see the next PCV theory test question, or pick a few random questions from the list below to mix up your practice.