Brake fluidNew Zealand
150. Brake fluid
Brake fluid is a hydraulic fluid used in many vehicle braking systems to transmit force from the brake pedal through the hydraulic system to the brakes at the wheels. It must withstand high temperatures and maintain suitable hydraulic properties for reliable braking.
The brake-fluid level and condition should be checked according to the vehicle manufacturer's instructions. Only the specified type of brake fluid should be used, because incompatible or contaminated fluid can impair braking-system performance.
Wikimedia.org • Frettie • CC BY
What does brake fluid do?
Brake fluid transmits hydraulic pressure from the driver's brake input to the braking mechanisms at the wheels, allowing the vehicle to slow or stop.
🔗 hella.com • HELLA, brake-fluid function, MIN/MAX, leak/wear checks
🔗 gov.uk • Great Britain Highway Code, Annex 6, brakes and steering; national guidance example
What does a low brake-fluid level mean?
A low level can indicate wear, a leak or another brake-system problem. Follow the handbook’s warning instructions and have the cause checked, rather than merely topping up. If braking is affected or a stop/brake warning appears, stop safely and arrange appropriate help.
🔗 hella.com • HELLA, brake-fluid function, MIN/MAX, leak/wear checks
🔗 gov.uk • Great Britain Highway Code, Annex 6, brakes and steering; national guidance example

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