How to Drive in a Variable Lane?

Why does the car shake when driving at high speed?

Car shaking at high speed is a common phenomenon. The following are the reasons why a car shakes at high speed: 1. The brake disc surface is uneven, and the radial runout is too large. When braking, the contact between the brake pads and the brake disc varies in tightness, causing the braking force to fluctuate, which results in body vibration. This is usually noticeable when lightly applying the brakes. 2. Large deviation in wheel alignment data. Especially when the front wheel alignment angle is incorrect and the toe-in is too large. In this case, the vehicle feels difficult to control during acceleration, and the shaking is generally not severe, but it feels awkward to drive. 3. Tire pressure is too high or too low. The higher the tire pressure, the more severe the body vibration at high speeds. If the tire pressure is too low, the body will feel unstable and may pull to one side. 4. Abnormal tire wear. Due to wheel misalignment or rim deformation, the tire surface wears unevenly, causing body vibration while driving. 5. Rim deformation. When the tire is mounted on the rim, deformation of the rim will cause the tire to deform as well, resulting in an uneven surface and imbalance in wheel dynamic balance, leading to shaking while driving.

12

0

Share

Can Charging Piles Charge During Rain?

When the rainfall is light, it is possible to use charging piles for charging, but in cases of heavy rain, it is advisable to avoid charging operations as much as possible. The details are as follows: Waterproof Capability of Charging Piles: During the construction of charging piles, waterproof materials are applied at the bottom of the charging facilities. This gives the lower part of the charging pile body, about 20~30 centimeters, the ability to withstand water immersion. National standards for the waterproof performance of charging piles are very strict. Before charging begins, both the vehicle side and the pile side must undergo insulation testing. If the insulation test fails (due to rain or debris), charging cannot be initiated. Therefore, generally, charging piles are safe when exposed to rain. Waterproofing of Charging Interfaces: Even though waterproof materials are used in charging piles, it is generally not recommended to perform charging operations during rain. Some consumers worry that the charging interface might short-circuit due to rain exposure. Even if manufacturers use insulating materials at the charging pile interface, charging during rain can still pose risks.

16

1

Share

Do I need to return to the local DMV to renew an expired driver's license?

The replacement and renewal of a driver's license (including renewal upon expiration, renewal upon reaching the specified age, renewal due to information changes, renewal due to damage, renewal with a downgraded vehicle class due to changes in physical condition, replacement for loss, etc.) and the review can be processed in a different location with an ID card. Below are the specific handling methods for different periods of overdue driver's license review: 1. Less than 12 months overdue: If the license has been expired for less than 12 months, it can be renewed as usual. 2. Between one and three years overdue: If the license has been expired for more than one year but less than three years, you will need to retake the subject one exam to renew the license. After passing the exam, you can obtain the license. 3. More than three years overdue: If the license has been expired for more than three years, you will need to reapply for a driver's license. Driving during the overdue period is not allowed and may be treated as driving without a license. If the license has been expired for more than three years, it will be considered invalid and canceled, and you will need to retake the driver's license test.

15

5

Share

What are the causes of abnormal noises in a car?

There are several reasons that may cause abnormal noises in a car: 1. Long service life of the engine: Some cars have engines that have been used for too long, and high idle speed during each startup may cause abnormal noises. 2. The engine oil used during maintenance is also a contributing factor: Expensive engine oil is not necessarily the best; it must be suitable for your car. Unsuitable engine oil can produce certain abnormal noises. 3. Belt wear: Cars with long service lives may need belt replacements, and worn belts can also produce such noises.

6

3

Share

Does the Auto Start-Stop Function Really Harm the Car?

The auto start-stop function does not harm the car. Below is a detailed introduction to the auto start-stop technology: 1. The start-stop function only stops the engine from working, but the oil system does not stop. This means that although the engine is not rotating, the oil will still flow inside the engine, ensuring better lubrication and protection for the engine when the car starts again. 2. The auto start-stop technology is a system that can automatically control the engine shutdown and ignition, known in English as STOP&START, abbreviated as STT. Vehicles equipped with auto start-stop technology will automatically shut down the engine when temporarily stopping during driving. When it is time to move forward again, the system will automatically restart the engine. Generally, the auto start-stop function is enabled by default in vehicles, but owners can choose to turn it off if they don't need it. 3. The advantage of the auto start-stop technology is fuel savings. Whether waiting at a red light or stuck in traffic, the auto start-stop technology can automatically turn off the engine when the car stops, thereby saving fuel. However, the cost of using the car will increase. Cars with an auto start-stop system are several thousand dollars more expensive than those without. Additionally, due to the frequent starting and stopping of the engine, there is a higher demand for oil quality, further increasing maintenance costs.

5

0

Share

The Role of Twin-Turbocharging?

The role of twin-turbocharging is to address the traditional turbo lag phenomenon. Below are precautions for using turbocharged engines: 1. Choose full synthetic oil: Due to the high temperature and high-speed operation of turbocharged engines, the requirements for oil's high-temperature shear resistance and low-temperature fluidity are quite high, and there are also relatively high demands on the oil film. Therefore, it is necessary to select full synthetic oil and reasonably choose the oil viscosity. 2. Use high-quality fuel whenever possible: Turbocharged engines should preferably use high-quality fuel. Since turbocharged engines are mostly direct-injection, which has higher requirements for fuel quality, this can help avoid carbon buildup during use.

15

1

Share

How to Drive in a Variable Lane?

Why does the car shake when driving at high speed?

Can Charging Piles Charge During Rain?

Do I need to return to the local DMV to renew an expired driver's license?

What are the causes of abnormal noises in a car?

Does the Auto Start-Stop Function Really Harm the Car?

The Role of Twin-Turbocharging?

What Documents Are Needed to Purchase Compulsory Traffic Insurance for a Motorcycle?

What does the Mercedes-Benz P06DA00 fault code mean?

Where is the engine number located on the Mercedes-Benz R300?

How to Properly Retract Car Side Mirrors?