When to change car brake pads?  How to check brake wear

When to change car brake pads? How to check brake wear

Wearing car brake pads greatly affects braking performance. To check for wear and know when to replace the brake pads is not difficult.

What is the brake pad?

The brake pad (also known as the brake pedal) is an important part of an automobile brake system. The brake pads are responsible for contacting the rotating part of the brake, creating friction to help reduce the rotation speed of the wheel.

The brake pads are responsible for creating friction to reduce vehicle speed

Why need to replace car brake pads?

During the operation, because the brake pads are subjected to constant friction, they will wear out over time. Therefore, car manufacturers always recommend that the brake pads should be checked and replaced periodically. However, if the brake is used incorrectly or the brake system fails to be corrected early, the brake pads wear out faster than usual.

Because the brake pads are subjected to constant friction, they will wear out over time

Some common causes cause the brake pads to degrade faster than usual, such as:

Not clean and secure brake pads periodically: Without periodic cleaning and maintenance, the brake pads will wear more quickly than usual due to dirt.

Deformed brake disc due to collision: When a car is in a collision, the brake disc can be deformed. If not handled soon, the car brake pads will quickly wear out because when the brake disc is attached, the brake disc does not rotate evenly.

The brake roller is rusted: If the rubber packing is broken, the brake roller may malfunction, rust. This causes the brake pedal to not return to the position at the right time when the piston exerts a large force on the brake pads.

Brake pedalCheerful: This is also the reason why the brake pads can wear out quickly. Because the short brake pedal makes the brake more sensitive, it makes the brake pads easy to grip on the brake disc, so they wear out quickly.

The brake pads hatch due to water leakage: The brake pads may expand if water gets inside.

The brake fluid is contaminated with water: Contaminated brake fluid can lead to many problems for the brake system in general and the brake pads in particular.

When to change car brake pads?

According to the auto manufacturer’s recommendation, car owners should check and replace brake pads periodically after every 50,000 – 80,000 km or after 2 years of use. However, in cases where the brake system must work at a high intensity such as the vehicle frequently moving on a busy road, using continuous brakes, the brake pads wear faster faster. Therefore, the replacement time will be sooner. If the brake system fails to be corrected early, it can also cause the brake pads to wear quickly.

It is recommended to check and replace the brake pads periodically every 50,000 – 80,000 km or after 2 years of use

It is therefore difficult to know how often to replace the brake pads. Because when to replace the brake pads, it will depend on the usage conditions, driving habits, brake maintenance mode and the actual condition of the brake pads. To accurately replace the brake pads, it is best to check and determine the brake pads condition.

How to check car brake pads

There are many ways to check the wear of car brake pads. Accordingly, it is possible to observe whether the vehicle has hidden signs such as:

The car has a strange noise when braking: If the brake resounds every time the brake is depressed, the brake pads are worn out. Often these calls will be a squeak or creak.

Vehicle skewed when braking: When you step on the brake pedal, if you see that the vehicle tends to deviate to the left or right, the brake pads may be worn out.

The steering wheel vibrates when braking: If you press the brake pedal if there is any sign of vibration, the brake pads are likely worn out.

The brake does not eat: There are many reasons why bicycle brakes do not eat. The most common cause is worn brake pads.

A bicycle brake is not eating properly is one of the most common signs of worn brake pads

Brake brake lights lighting up: Modern cars today have sensor systems and fault indicators, including brake lights. When the brake pads of one of the wheels have worn out beyond the standard, the warning light will come on.

How to change brake pads for cars

How to replace the brake pads is not too complicated. You can replace the brake pads at home if you have a certain understanding of automotive engineering as well as have all the necessary tools to replace the brake pads.

Instructions on how to replace oto brake pads:

Step 1 – Remove the wheel: First use the car jack to lift the car, remove the wheel.

Step 2 – Open the brake piston assembly: After the brake clamp, there are accumulator bolts throughout the rubber brake assembly, the lever levers the bolts and latches the pitson assembly out of the brake assembly using a screw. Note that after manipulating the piston assembly, use the rope to tie back, do not let the piston be suspended by the brake hose because it can easily damage the oil pipe.

Step 3 – Open the old brake pads – install new brake pads: When the piston assembly is open, continue to open the old brake pads, then replace the new brake pads. Pay attention to the order in which the brake pads are opened, especially on the sides so that the new brake pads can be easily installed.

Step 4 – Press the brake piston: Because the thickness of the old and new brake pads is different, the new brake pads will be difficult to install when fitted to the piston position. Therefore, it is necessary to use the piston crown, compress the piston back to the original position so that it can be fitted with the new brake and brake pads.

Step 5 – Reinsert the piston and wheel assembly: Reinsert the piston in accordance with the brake mechanism, and add oil to the spool bolt through the brake. Finally reassemble the wheel.

After replacing the brake pads, depress the brake pedal to get enough pressure. Then try driving to check if the brakes are working properly or not.

Price of car brake pads

The average price of car brake pads ranges from 300,000 to 900,000 VND / unit. For luxury cars, the price of replacing the brake pads is usually higher, over 1 million VND / unit.


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