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What to Do When the Vehicle Braking System Shows Abnormalities?

2 Answers

OHeidi

07/29/25 11:36pm

It is recommended to promptly visit a 4S shop for inspection and repair if the braking system shows abnormalities. The operational state of a vehicle's braking system determines the safety of passengers inside the car. Only when it is in a healthy condition can it successfully decelerate or even stop the vehicle according to the driver's intention. Below are manifestations of braking system abnormalities: 1. There are many phenomena indicating a faulty braking system, specifically when the brake pedal does not rise upon pressing. The reason for this situation is the lack of brake fluid in the car. It is necessary to check for oil leaks at the brake calipers, pipelines, and joints, or to inspect whether the master cylinder or caliper components are damaged. 2. Sometimes, pressing the brake pedal all the way down results in poor braking performance. This is because there is air mixed in the braking system. If continuously pressing the brake pedal causes the pedal to return higher and the braking performance improves slightly, the fault may be due to excessive gap between the friction pads and the brake drum, requiring inspection and repair at a 4S shop. 3. If the brake pedal's position is very low, and when pressed, it does not rise, feeling extremely hard, this indicates a blockage in the brake master cylinder, which needs to be cleaned promptly.

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OJessica

08/16/25 2:38am

I have 30 years of driving experience. That time when the brakes suddenly became soft on the mountain road, it really scared me. I immediately steadied the steering wheel, gradually slowed down, and pulled over safely without slamming on the brakes to avoid losing control. After stopping, I first checked the brake fluid reservoir—if the level was low or the fluid was cloudy, it indicated a problem. Usually, you should regularly check the thickness of the brake pads; if they're worn down, they need to be replaced. I suggest fellow drivers service their braking system every six months, letting a professional mechanic test the oil pressure and pipelines to prevent brake disc deformation or fluid leaks that could lead to safety hazards. This system can't be taken lightly in critical moments—failure at high speeds can be deadly. Regular maintenance can significantly reduce risks—safety first.

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Can You Drive Away a Bare Car Purchased from a 4S Store?

You can drive away a bare car purchased from a 4S store. In fact, as long as you can purchase a bare car and the vehicle has all the necessary certifications, it can be driven legally on the road after obtaining a temporary license plate. A bare car simply refers to a vehicle that does not include insurance, vehicle and vessel tax, purchase tax, and license plate fees. Relevant information is as follows: 1. Introduction: After purchasing the car, you can handle the aforementioned insurance and taxes on your own. This car will be no different from one purchased at the full landed price in a 4S store, as both are qualified vehicles that comply with national laws and regulations. 2. Precautions for Buying a Bare Car from a 4S Store: The profit margin for 4S stores selling bare cars is very low. Therefore, the bare car sold to you might be an inventory car or a defective one. Consumers must thoroughly inspect the vehicle before payment and only take delivery after ensuring all aspects of the car are in good condition. It is advisable to bring a friend who is knowledgeable about cars during the inspection.

What is the Headlight?

Automotive headlights, also known as front headlamps or LED daytime running lights, include high beams, low beams, and turn signals. High Beams: High beams should only be used when there is no other surrounding light. They are suitable for driving at night on highways or in rural areas without streetlights to expand the field of vision. However, when encountering oncoming traffic, it is necessary to switch to low beams for safety and courtesy. Low Beams: Low beams must be used when driving in areas without streetlights at night, during dusk when it is darker, or at dawn. In adverse weather conditions such as heavy fog, snow, or rain, even during the day, low beams should be turned on if visibility is poor. Additionally, in areas where street lighting is insufficient, low beams should also be activated. Turn Signals: The primary function of turn signals is to indicate to other drivers and pedestrians when the vehicle is turning, serving as a warning. In some cases, turn signals can also be used for illumination in tight spaces to help the driver observe obstacles on either side.

Where is the license plate number starting with 'Hei M' from?

Hei M is the license plate number for Suihua City in Heilongjiang Province. 'Hei' is the abbreviation for Heilongjiang. The license plate codes for different regions in Heilongjiang are as follows: Hei A for Harbin, Hei B for Qiqihar, Hei C for Mudanjiang, Hei D for Jiamusi, Hei E for Daqing, Hei F for Yichun, Hei G for Jixi, Hei H for Hegang, Hei J for Shuangyashan, Hei K for Qitaihe, Hei L for counties and county-level cities under Harbin, Hei N for Heihe, Hei P for the Greater Khingan Mountains region, and Hei R for the Heilongjiang Agricultural Reclamation Administration. License plates, also known as vehicle registration plates, are mounted on the front and rear of a vehicle. Their primary function is to identify the vehicle's region of registration, and they can also be used to look up the vehicle's owner and registration information.

How many liters of transmission oil are needed when replacing the manual transmission of Geely GX7?

When replacing the manual transmission oil of Geely GX7, if manual oil change (gravity oil change) is adopted, 4 to 6 liters are needed; if an oil changer is used, about 9 to 12 liters are required. For Geely GX7 manual transmission oil, it is generally recommended to replace it every 3 years or after driving about 100,000 kilometers. The methods for replacing transmission oil are as follows: Unscrew the oil drain screw at the bottom of the transmission to drain the oil and then refill it. Directly remove the transmission oil pan to drain and refill the oil: This method is more thorough than the previous one, as it removes impurities at the bottom of the oil pan. Use a circulation machine to replace automatic transmission oil: Dynamic oil change with an intelligent circulation machine can filter and clean the sludge and impurities inside the automatic transmission. Hazards of not replacing transmission oil for a long time: 1. It may cause damage to the transmission's shift control mechanism; 2. It may lead to abnormal wear of gears and clutch plates inside the transmission; 3. It may affect the normal operation of the transmission, resulting in damage to the transmission valve body.

Can a Jetta Drive into Tibet?

A Jetta can drive into Tibet via the southern Sichuan-Tibet route. However, to prevent vehicle breakdowns, it's advisable to prepare some towing ropes. Before entering Tibet, ensure your car undergoes thorough maintenance checks. Due to the significant temperature differences between day and night in Tibet, remember to bring plenty of warm clothing. Additionally, since Tibet has high altitudes, it's recommended to carry anti-altitude sickness products like Youyi Oxygen Boost to prevent altitude sickness when traveling. Avoid Fatigue Driving: While the daily mileage might not be high during a self-drive trip to Tibet, some sections have poor road conditions, involve crossing mountains, or have speed limits, which can result in long driving hours. Given the complex road conditions, it's crucial to avoid fatigue driving. Ideally, have both a primary and a secondary driver. Beware of Water Accumulation and Falling Rocks: During the drive, if encountering rainfall in certain sections, pay close attention to water accumulation and falling rocks. When approaching such areas, slow down if there's water on the road and observe how other vehicles pass before assessing your own vehicle's capability. Also, be mindful of the terrain, as rainfall can trigger falling rocks from mountains. Although this is a low-probability event, exercise caution and pass through such areas quickly while ensuring safety.

What is a Non-Motorized Vehicle Lane?

Non-motorized vehicle lane refers to the lane on a highway or urban road, demarcated from the right-side curb (or line) of the sidewalk to the first vehicle lane dividing line (or isolation belt or pier), or the lane marked on the sidewalk, which is exclusively for non-motorized vehicles except under special circumstances. Methods for determining the width of non-motorized vehicle lanes: Generally, it is estimated based on the types and operational requirements of non-motorized vehicles, the lateral combination modes of various vehicles, and considering unfavorable parallel driving and overtaking situations. Different width combinations will arise when various non-motorized vehicles are mixed. The lateral safety distance between two different types of non-motorized vehicles is approximately 0.4-0.5m. Lane width: When two bicycles are driving side by side, the width of the non-motorized vehicle lane is 2.5m; when three bicycles are driving side by side, the width is 3.5m, and so on. However, the number of parallel lanes should not be excessive, as it may affect driving safety. When designing non-motorized vehicle lanes, the future changes in traffic modes should be considered, i.e., the transformation from non-motorized vehicle lanes to motorized vehicle lanes. In this case, the width of the non-motorized vehicle lane should preferably be 6.0m.

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