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What Are the Reasons for Abnormal Noise When Braking in a Car?

3 Answers

Carolyn

07/25/25 8:49am

The reasons for abnormal noise when braking in a car are: 1. Corrosion of the brake disc or brake pads; 2. New brake pads; 3. Excessive wear of the brake disc and brake pads; 4. Incorrect installation or mismatched model of brake pads; 5. Use of low-quality or overly hard brake pads; 6. Abnormal brake caliper or lack of brake fluid; 7. Presence of foreign objects between the brake drum or disc and the pads. Solutions for abnormal noise when braking in a car: 1. Apply butter or special lubricant at the connection between the brake pads and the brake caliper; 2. Regularly inspect and replace the brake pads; 3. Regularly adjust the brakes; 4. Avoid frequent use of the brakes.

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OJordan

08/11/25 1:57pm

When there is abnormal noise while stepping on the brakes, I think the most common cause is excessive wear of the brake pads. If the pads are too thin, the metal backing plate comes into contact with the brake disc, causing a squeaking sound. As soon as this sound appears, I immediately check the pad thickness. Generally, they should be replaced if they are below 3mm. Otherwise, braking performance will decline, and in emergency situations, delayed response can be dangerous. Additionally, if the noise persists after replacing the brake pads, it might be due to the new pads not being properly bedded in or loose fixing screws. Regular cleaning of the brake system during maintenance can also prevent such noises, especially after driving on muddy roads where dust can easily get stuck inside. Don’t take it lightly—safety comes first.

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DelLogan

09/27/25 7:10am

As someone who often tinkers with cars, I've found that most brake noises come from minor issues. For example, rust or scratches on the brake disc surface can cause squeaking, especially after rain when rust sticks to the pads. A simple cleaning can often solve the problem. If the noise persists, it might be due to the pad material—cheaper pads with high iron content tend to vibrate more. I usually disassemble and inspect them, sanding the edges of the pads as a test. If that doesn't work, replacing the pads is the next step to avoid damaging the brake disc. Another common issue is loose caliper bolts, which can be fixed by tightening them. Remember, ignoring brake noises for too long can increase stopping distances and lead to accidents.

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Where is the Start Button on the Audi A7?

The start button on the Audi A7 is located to the right of the gear shift lever. The Audi A7 is equipped with a keyless start system, which means you don't need to take out or turn a key to start the vehicle. Simply keep the key in your bag or pocket, and press the button inside the car or turn the knob to ignite the engine. This not only makes it more convenient but also enhances the sense of luxury and technology. More details are as follows: 1. The keyless start system uses the most advanced Radio Frequency Identification (RFID) technology, automatically locking and unlocking the doors via the chip in the smart card carried by the owner. This means when the driver approaches the vehicle within a certain distance, the door locks will automatically open and disable the anti-theft system. When the driver leaves the vehicle, the door locks will automatically lock and activate the anti-theft system. 2. Vehicles equipped with a keyless entry system usually have a sensor button on the door handle, along with a keyhole. This is to ensure that the owner can still open the door in the traditional way if the smart card is damaged or runs out of power. 3. When the owner enters the vehicle, the car's detection system immediately recognizes the smart card. After confirmation, the car's computer system will activate, allowing the vehicle to be started by simply pressing the start button (or turning the knob) inside the car. This ensures that the system can correctly identify the driver under any circumstances, whether inside or outside the vehicle.

How many points are deducted for stopping in an S-curve?

S-curve midway stop, deduct 100 points, test failed. The driving method for S-curve is as follows: 1. Just entering the S-curve: When just entering the S-curve, try to keep the car in the middle of the curve. 2. Inside the curve: In the curve, if the left side of the car is far from the curve, turn the steering wheel to the left; if the right side is far, turn to the right. 3. Narrow section: When encountering a relatively narrow section in the middle, don't panic, the steering wheel rotation should not be too large, just make slight adjustments. The steering wheel turns with the direction of the curve, and the hands naturally follow what the eyes see. Throughout the process, try to keep the speed as slow as possible and control the speed well. If the speed is too fast, it's easy to step on the line without timely reaction; if the speed is too slow, the vehicle is prone to stalling.

How to Remove the Cigarette Lighter in a Tiida?

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Why wasn't the ETC fee deducted after exiting the highway?

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What is the principle of an automobile generator?

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How to Start Smoothly with a Manual Transmission?

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