What are Brake Fluid Reservoirs?
Brake fluid reservoirs are canisters that connect to the brake master cylinder. The brake fluid reservoir stores your vehicle’s brake fluid and protects it so that your hydraulic braking system can work properly.
How do Brake Fluid Reservoirs Work?
When you apply force to your brake pedal, the brake fluid translates that force into pressure and runs through your braking system. A fluid level sensor alerts you when levels get low. The reservoir lid protects the brake fluid from the elements.
How are Brake Fluid Reservoirs Made?
Most brake fluid reservoirs are molded from polymer.
Why do Brake Fluid Reservoirs Fail?
- Crack or damage
- Fluid level sensor failure
- Worn bladder inside the cap
What are Symptoms of Brake Fluid Reservoir Failure?
- Dashboard brake light comes on
- Leaks around the base (grommets)
- Cracks in the casing
- Moisture getting into fluid
What are the Consequences of Brake Fluid Reservoir Failure?
- Brake fluid can leak
- If fluid gets too low your brakes may stop working altogether
- Your brake system can fail if the reservoir isn’t replaced or repaired