Anti-Lock Braking System (ABS) - Function, Issues, and Maintenance

January 29, 2024

Foot in black leather shoe presses down on a car's brake pedal. | Torque European Car Care

 

When you're driving, nothing is more crucial than the ability to stop safely , at a moment's notice. That's where the Anti-Lock Braking System (ABS) comes in, a game-changer in automotive safety technology. But what exactly is ABS, and how does it work? Let's "brake" it down!

 

What Does the Anti-Lock Braking System (ABS) Do?

ABS is a safety feature designed to help drivers maintain control during emergency braking. When you slam on the brakes, ABS prevents the wheels from locking up, thereby avoiding uncontrolled skidding. This system uses speed sensors and a series of valves and pumps to regulate the braking pressure, ensuring that you can steer safely while braking hard.

How Is The ABS Different From the Normal Braking System

Unlike traditional braking systems, where hard braking can lead to the wheels locking up, ABS continuously modulates the brake pressure to prevent lock-up. This difference is crucial in maintaining steering control during sudden stops, particularly on slippery surfaces.

3 Specific Signs Of ABS Problems

ABS Warning Light

The ABS warning light on your dashboard is not just another indicator; it's a crucial warning. When this light turns on, it signals that the ABS has detected a problem. This could range from a simple sensor issue to something more complex within the system's hydraulic units or control modules.

Unusual Brake Pedal Behavior

 

The feel of the brake pedal is something drivers are intuitively familiar with. If you notice a change, such as the pedal feeling spongy, less responsive, or experiencing unusual pulsations during braking, it's often a sign of ABS issues. These sensations typically occur when the ABS modulates the braking pressure to prevent wheel lock-up. However, if these symptoms are present outside of hard braking scenarios, it indicates a problem in the system that requires immediate attention.

 

Longer Stopping Distances

One of the ABS's primary functions is to optimize the braking process. If you start noticing that your vehicle is taking longer than usual to come to a complete stop, this could be a sign of malfunctioning ABS. Longer stopping distances not only increase the risk of accidents but also indicate that the ABS is not correctly regulating the brake force to each wheel.

Best & Worst ABS Maintenance Practices

For optimal ABS maintenance, regular checks are key. This includes:

 

Regular Brake Fluid Checks
Brake fluid is the lifeblood of the braking system. Ensure it's at the correct level and replace it according to the manufacturer's schedule. Old or contaminated brake fluid can adversely affect ABS performance.

 

Wheel Speed Sensors Maintenance
These sensors play a crucial role in ABS functionality by monitoring the speed of each wheel. Keep them free from dirt, debris, and corrosion. Accumulation of grime can lead to faulty readings, triggering ABS problems.

Conversely, poor maintenance practices that can lead to ABS failure include:

Neglecting Brake Fluid Changes
Overlooking brake fluid changes can lead to the fluid becoming contaminated, which can cause internal corrosion in the ABS system.

Ignoring ABS Warning Lights
Dismissing the ABS warning light can lead to more severe issues down the line, including total ABS failure, which can compromise vehicle safety.


When it comes to brakes, more specifically, their maintenance or repair, Torque Automotive is the simple and reliable answer! We are your local professionals ready to handle any and all car-related problems and concerns.

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