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Why is the brake of a new car not working properly?

2 Answers

LaJesse

09/02/25 5:30am

Reasons for poor brake performance in a new car are as follows: Excessive brake pedal travel: Too much free travel in the brake pedal. No oil in the master cylinder fluid chamber: Insufficient or no oil in the master cylinder reservoir. Brake fluid vapor lock: Air entering the brake lines or vaporization of brake fluid causing vapor lock. Poor sealing of the master cylinder: Aging or wear of the master cylinder or wheel cylinder cups leading to poor sealing. Clogged reservoir vent hole: Blockage of the master cylinder inlet hole or reservoir vent hole. Unsealed master cylinder return valve: Unsealed outlet or return valve in the master cylinder.

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SanOlive

09/14/25 7:38am

When I first bought my new car, the brakes also felt unresponsive—soft and lacking feedback when pressed. I later learned from friends that this is a common issue during the new car break-in period. The brake pads and rotors have a slightly rough surface from the factory and need about 300–400 kilometers of driving to wear smooth and become more responsive. Additionally, low brake fluid levels can affect the hydraulic system, so I regularly check the brake fluid reservoir under the hood to ensure the level stays between the min and max marks. Overloading makes the car heavier and braking more strenuous, but adjusting the load improved the feel. If the issue persists after break-in, it’s best to get a full inspection at the dealership—safety should never be overlooked. Remember, avoid hard braking during the adaptation period; gentle driving helps the system settle in faster.

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Is it acceptable if the left and right sides are not equally wide when reversing into the garage?

It is considered acceptable. Below is the relevant information about Subject 2: 1. Examination standards: In the Subject 2 test, the criterion for reversing into the garage is not based on the width of both sides but rather on whether the vehicle body crosses the line. Therefore, there is no need to worry about the distance on both sides of the vehicle body. As long as the vehicle body does not cross the line, it is considered normal. 2. Reversing into the garage in Subject 2: This is the first item in the Subject 2 test. If a mistake is made in this item, the Subject 2 test will be deemed a failure. When the vehicle enters the garage, as long as the vehicle body does not cross the boundary line, the distance on both sides of the vehicle is not important. Frequent adjustments to the vehicle body may cause it to cross the line, resulting in test failure. 3. Subject 2 test items: There are five items. The first test item is reversing into the garage, the second is parallel parking, the third is stopping and starting on a slope, the fourth is turning at a right angle, and the fifth is driving through curves. When the vehicle can successfully complete the curve driving, it proves that the test has been passed, and you can check your score on your own.

What causes the left side to be too wide when reversing into the left bay?

The following are the related reasons for the left side being too wide when reversing into the left bay: 1. Steering too late at the starting point: If the left side is too wide and the right side is too narrow when reversing into the left bay, it is because the steering was done too late at the starting point. Even if you don't adjust the direction and reverse in one go, the right side will still be too narrow! 2. Different turning radii for left and right turns: Due to the different turning radii of the car for left and right turns, the steering point for reversing into the left bay at the starting point usually needs to be slightly earlier than for the right bay. This applies to all test vehicle models! It is essential to improve proficiency in speed control and steering wheel operation and strengthen basic skill practice! 3. Timing is crucial: The situation where the left side is too wide and the right side is too narrow when reversing into the bay often occurs during right bay reversing. Beginners are unfamiliar with the vehicle's performance, have inaccurate judgment of the 30 cm distance, and are not very good at timing the steering at key points. A combination of these factors leads to the issue.

What are the differences between new cars and used cars?

Differences between new cars and used cars: 1. Performance differences: In terms of performance, the engine and overall performance of a new car are far superior to those of a used car. 2. Differences in appearance and interior: Whether it's the exterior or interior, a new car looks much more comfortable because a used car has already been used by someone else, and the interior may be dirty and worn, while the exterior may also be slightly worse. 3. Differences in fault conditions: New cars rarely have issues, while used cars are more likely to have minor or even major problems. After all, machinery will experience wear and tear over time, and the performance of a new machine is naturally better than that of an old one.

Which part of the car should the safety hammer strike?

The safety hammer should strike the four corners of the car window glass. Here are specific details about the safety hammer: 1. Usage method: Car glass is a high-strength tempered glass with strong impact resistance. In case of an emergency, use the pointed end of the safety hammer to forcefully strike the four corners of the glass. Once cracks appear, strike a few more times or kick outward with your foot, and the entire glass will fall off. After the glass completely falls off, quickly and orderly jump out of the vehicle and evacuate to a safe area. 2. Common misconceptions: Believing that the center of the window glass is the easiest point to break, focusing all efforts on striking the middle part, or using personal items such as keys, high heels, mobile phones, or wooden sticks as substitutes for the safety hammer.

What are FAW Toyota's first maintenance regulations?

FAW Toyota's first maintenance regulations are as follows: 1. Time regulation: The first maintenance time is calculated based on the vehicle pickup date, with the purchase invoice serving as the reference. It's advisable to make an appointment with the 4S store before going for the first maintenance. 2. Maintenance cycle: When the vehicle reaches 5,000 kilometers or 3 months, a comprehensive free inspection is required at the 4S store, but no parts will be replaced. The first actual maintenance is due at 10,000 kilometers or 6 months, during which the 4S store waives the first maintenance fee. Subsequent maintenance intervals are recommended by the manufacturer to be every 10,000 kilometers or 6 months.

Where to Renew an Expired Beijing Driver's License?

To renew an expired Beijing driver's license, you can go to any vehicle management office in Beijing's districts. Below is the relevant information for renewing a Beijing driver's license: 1. Required documents: Original and photocopy of the motor vehicle driver's identity proof; Original receipt for digital photo collection of Beijing motor vehicle driver's license; Original medical institution physical condition proof from Beijing driver's 'one-stop' service; Original motor vehicle driver's license or a written statement of loss of the driver's license. 2. Notes: After the application is successful, do not drive a motor vehicle with the expired original license before receiving the new one; During the process, the applicant and the recipient must be the same person. Please fill in the relevant information truthfully and be responsible for the authenticity and validity of the provided documents; Once the online application at the vehicle management office is approved, it is considered processed, and the fee will be charged immediately with no refunds accepted.

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