Brakes Frequently Asked Questions
The front of my car and brake pedal shudder under heavy braking. Is this normal for ABS brakes?
This is typical of the operation of anti-lock braking systems. It is the result of the ABS unit controlling the pressure applied to the wheel to prevent skidding. This shudder should be evident only when the ABS is operating (i.e. when it's necessary to control wheel skid). If it happens every time the brakes are applied, you should seek mechanical advice to determine if there are any brake system faults.
Does ABS reduce my braking distance?
The braking distances for ABS equipped cars are generally shorter, though on some road surfaces, stopping distances may be greater than a non-ABS car. However the prime safety function of ABS is to prevent wheel lock up, which would result in skidding and a loss of directional control. Thus with ABS, the driver is still able to steer the car, and hopefully avoid an accident. Drivers still need to travel at appropriate speeds and leave adequate braking distances.
How often should I change my brake fluid?
Brake fluid deteriorates over time, largely due to its affinity for water, including the moisture in the atmosphere. This contamination lowers the boiling point of the fluid considerably. The brakes may work OK during moderate brake use, however under heavy or sustained use this lower fluid boiling point will very likely mean you "run out of brakes". Moisture in the fluid will also help to corrode brake system components increasing car repair costs. The fluid should be changed as per the manufacturer's service schedule, usually about every 2 years or 40,000km, whichever comes first.
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