What will happen if the brake-fluid level falls too low?
- A The brakes will become spongy and inefficient
- B The brakes will overheat
- C The brakes will stick
- D The parking brake will fail
Why this is the answer
Driving a vehicle with a brake defect could be dangerous and may constitute an offence. Check the brake-fluid level regularly, using the high/low markers on the reservoir. If the fluid level is too low, it could result in loss of braking efficiency.
Why the other answers don't fit
- B
- The brakes will overheat — Overheating comes from heavy use, not from a low fluid level.
- C
- The brakes will stick — Sticking brakes come from seized components.
- D
- The parking brake will fail — The parking brake is usually a cable system and is unaffected by the fluid.
Where this comes from
- Driving: the essential skills — section 14
- The Highway Code — page 150
Rule numbers link to The Highway Code on gov.uk.
Where this question comes from
The question, its options and the explanation are reproduced word for word from the DVSA revision question bank under licence. The licence requires them to appear unaltered, so we cannot reword them and neither can anyone else — that is why you will meet the same wording on other sites. Everything else on this page is written by Theory Hub: the explanation of why each wrong answer is wrong, the topic guide and the revision notes.
Asked in: Driving Instructor (ADI Part 1)
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