Can the car brake pads be replaced by themselves?

Replacing the brake pads of automobile disc brakes is actually very simple, and basically you can do it yourself. You can basically see the simple steps in the video. Generally, many people can lift the cylinder by removing the screws under the cylinder (if you can't lift it, you just need to tilt the brake pad a little with a flat-head screwdriver and push the piston in a little), then you can take out the brake pad, then push the piston in according to the video method, and then install a new brake pad to install the screws of the cylinder for a long time. Finally, no.

Let's talk about when this brake pad is usually replaced and how to judge whether it needs to be replaced.

Step two:

Please click to enter a picture description.

Brake system is the patron saint of our daily driving. If it breaks down, driving is prone to traffic accidents. So, how do we check the brake pads in daily driving? The replacement time period of brake pads and brake discs is not fixed! It depends on the road conditions of the vehicle! The frequency and intensity of the driver's stepping on the brake pedal! Under normal driving conditions, the service life of the front brake pad is 2-4wkm, and that of the rear brake pad is 6- 10W km, depending on the actual situation. If there is still thickness, there is no need to change it. However, it is recommended to check the front brake pads every 30,000 kilometers and the rear brake pads every 60,000 kilometers.

1, observation method

Please click to enter a picture description.

The thickness of a new brake pad (excluding the thickness of the brake pad steel back plate) is generally around10 mm. When the thickness of the brake pad is only around 1/3 (about 3mm), the owner will increase the self-inspection frequency and be ready to replace it at any time. Usually when the thickness is less than 1mm, it needs to be replaced immediately. There is a prominent sign on both sides of each brake pad. The thickness of this sign is about 2-3 mm, which is also the limit of replacing the thinnest brake disc. If the brake pad thickness is parallel to the sign, the old driver reminds that it must be replaced immediately.

2. Listen to the sound

Please click to enter a picture description.

If the brake pads are lightly braked and accompanied by the sound of "iron rubbing", it is recommended to replace the brake pads immediately. Because the limit signs on both sides of the brake pad have directly rubbed against the wheel, it is proved that the brake pad has exceeded the limit. In this case, when replacing the brake pad, it is necessary to cooperate with the inspection of the brake disc. When this noise occurs, the brake disc is usually damaged. At this time, even if the brake pads are replaced with new ones, the noise cannot be eliminated. In severe cases, the brake disc needs to be replaced.

Step 3 feel the power

Please click to enter a picture description.

When the brake pads become thinner, our braking effect will be affected. At this time, we need to step on the brake pedal deeper to achieve the braking effect that can be achieved by lightly stepping, and the braking effect in the first half is obviously weakened. I feel that the brakes are soft and I can't stop. At this time, it is necessary to check whether the brake pads need to be replaced.

In addition, there are people who have only two choices for their feet during driving: refueling and braking. The frequency of braking has reached a high level. In fact, there are not a few such people. The result is naturally 20,000-30,000 kilometers, and the brake pads have to be replaced.

The following are some special situations that need attention:

1, novices usually step on the brakes more! Consumption will be even greater!

2, automatic gear ratio manual brake pads! Because automatic shifting depends on the accelerator pedal and brake pedal.

3, often drive the car in the city! Brake pads will wear out faster than cars that are often driven on the road! Because I often drive downtown! Always stop and go! There will be more brakes! You may have to slow down or stop for dozens of kilometers on the road! There are relatively few opportunities to use the brakes.

4, a car with a large load! Brake pad loss is large! Slow down and brake at the same speed! Heavy cars have great inertia! Brake pad friction requires a lot of force! So the wear is big!

Summary: It is suggested that the owner should check, repair or replace the brake pads every time. The correct way to drive is to keep your eyes open, find problems in time, collect oil in advance and slow down, and decide whether to step on the brakes according to the situation. Doing so can not only save gasoline, but also prolong the life of brake pads.

How to run in after replacing automobile brake pads

Why run in new brake pads? After replacing a new brake pad, the contact surface between the brake pad and the brake disc is relatively flat, but the contact surface on the brake disc is very uneven. At this time, there will be a phenomenon similar to "putting a piece of soap on the washboard". The contact area between them is very small, and the deformation of the brake pad is great when braking, just like pressing soap with great force. Because the edge of the washboard is hard, the soap contact surface is deformed. The phenomenon that can be directly felt is that the pedal is low and soft when stepping on the brake, and obviously the braking force is not enough. So we will have a running-in process after replacing the brake pads.