The braking system of your car is a key safety feature and has to be able to endure the enormous forces, pressures and strains put on it day in, day out. But have you ever stopped to think about how the brakes actually stop your car? Or why it’s vital that your braking system is maintained by the people who know your car best – your local Saab Authorised Service Centre?
When you press the brake pedal, the master cylinder converts this movement into hydraulic pressure. This is transferred to the wheels via an incompressible liquid (brake fluid) to actuate a caliper which forces the pads against the discs.
If your pads are worn or faulty, there’s a risk the brake disc will be damaged. You also risk losing control of the car under hard braking. Compatibility of brake pads and brake discs is vital – if the pads’ compound is too hard, it can cause increased disc wear and if it’s is too soft, then the pads can wear prematurely.
When the brakes are applied, the hydraulic pressure creates the friction to slow or stop your car. Whenever your brakes are checked, the brake discs will be checked as well. If they are deeply scored, glazed, cracked or rusty, they should be replaced. As with brake pads, both discs on the same axle should be replaced at the same time to avoid unequal braking.