Why does it need to be changed?
Brake fluid must withstand operating temparatures of up to 230°C but over time absorbs water whichboils at 100°C. As the water boils, it turns to compressible vapour which means you wont be able to brake as efficiently.
How often should it be changed?
Because it absorbs moisture over time, brake fluid must be replaced at year 3 and every 2 years after that irrespective of the mileage.
What happens if it's not changed?
If too much moisture builds up, the brake fluid can boil while the brakes are being used. This seriously affects braking performance and can cause the braking system to fail. A spongy feel to the brake pedal shows this has started to happen.
What do we do?
We check the level and look for leaks. We then drain the system and fill it with brake fluid that meets our high standards. We test the system and record it in your service book. Old brake fluid is disposed of responsibly.