Why Do Hatchbacks Have Rear Wipers?

What is the speed when fully releasing the clutch in first gear while practicing driving?

The speed when fully releasing the clutch in first gear while practicing driving is within the range of 0-60 km/h. The first gear of a sedan can only operate within the range of 0-60 km/h, meaning that even if the accelerator is fully pressed, the speed will not exceed 60 km/h when driving in first gear. In contrast, the high-speed fifth gear can operate within the range of 65-170 km/h. When shifting up, the gear lever must be moved accurately and smoothly to avoid delaying the shifting opportunity. Manual transmission vehicle driving requirements stipulate: Clutch: It can be installed coaxially or on separate shafts, but the axial direction must be fixed. Neither the driving part nor the driven part is allowed to have axial movement. When installed on separate shafts, the coaxiality between the driving part and the driven part shaft should not exceed 0.1 mm. Engagement: Smooth and gentle to ensure a stable start of the vehicle; quick and thorough separation to facilitate gear shifting and engine starting; with appropriate reserve capacity to ensure the transmission of the engine's maximum torque while preventing overload of the transmission system. During driving: Frequent operation of the clutch can cause relative sliding between the driving and driven parts of the clutch, generating frictional heat. If the heat is not dissipated in time, it can severely affect the reliability and service life of the clutch.

10

4

Share

Is It Necessary to Replace Steel Car Wheels?

It is necessary to replace steel car wheels. While steel wheels have their advantages, for ordinary household vehicles (small and micro passenger cars), the disadvantages outweigh the benefits. Most cars today come standard with aluminum alloy wheels when leaving the factory. Steel wheels have good toughness but poor hardness, whereas aluminum alloy wheels have high hardness but poor toughness. Aluminum alloy wheels are lightweight, corrosion-resistant, aesthetically pleasing, and highly durable, making them less prone to deformation. However, they are also more expensive. Once damaged, aluminum alloy wheels cannot be restored to their original appearance or repaired and must be replaced entirely. Due to their higher cost compared to steel wheels, many brands still equip their low-end models with steel wheels. Due to the difference in materials, the density of aluminum alloy is lower than that of steel wheels, making aluminum alloy wheels generally lighter in weight. Reducing the vehicle's weight not only helps lower fuel consumption but also shortens braking distances. Additionally, the reduced weight allows for quicker acceleration compared to steel wheels. The lighter weight also contributes to a more comfortable ride.

8

2

Share

What needs to be affixed in the upper right corner of a car?

In the upper right corner of a car, the following decals need to be affixed: compulsory traffic insurance decal, annual inspection compliance decal, and temporary license plate. Compulsory Traffic Insurance: Officially known as Compulsory Motor Vehicle Traffic Accident Liability Insurance, it is a mandatory liability insurance where the insurance company provides compensation within liability limits when the insured vehicle causes personal injury, death, or property damage to victims other than the vehicle occupants and the insured in a road traffic accident. Annual Inspection Compliance Decal: The inspection compliance decal, also known as the motor vehicle inspection compliance decal, is issued by the vehicle management office after the vehicle passes the annual inspection. This decal is affixed in the upper right corner of the front windshield. The decal bears the year, indicating which year's inspection it represents. Additionally, the back of the decal includes details such as the decal number, license plate number, validity period, and the certification number, which denotes the province, city, and district for police verification purposes. Temporary License Plate: A paper motor vehicle license plate that permits temporary road use, also referred to as a temporary driving license plate. It is issued by the vehicle management department of the public security bureau for newly purchased vehicles before official registration. The validity period of a temporary license plate generally does not exceed thirty days.

3

0

Share

Can a Car Be Sold After Being Mortgaged?

After a car is mortgaged, it can be bought and sold, but the ownership cannot be transferred. Chinese law clearly stipulates that mortgaged cars can be traded, but the transfer of ownership is not allowed. The reason a mortgaged car cannot have its ownership transferred is that the car has already been mortgaged, and the property rights temporarily do not belong to the owner. Therefore, the owner does not have the right to transfer the ownership of a car that temporarily does not belong to them to someone else. Thus, purchasing a mortgaged car does not grant ownership rights, only the right to use. Only after the mortgage is fully repaid and the mortgage is lifted can the transfer of ownership be processed. The term 'mortgage' refers to a situation where a debtor or a third party does not transfer the possession of the property listed herein, but uses the property as collateral for a debt. If the debtor fails to fulfill the debt, the creditor has the right to prioritize repayment by either converting the property into money or through auction or sale of the property, as stipulated by law. The debtor or third party mentioned in the preceding paragraph is the mortgagor, the creditor is the mortgagee, the property provided as collateral is the mortgaged property, along with interest, penalty fees, compensation for damages, and the costs of enforcing the mortgage. If the mortgage contract stipulates otherwise, those terms shall prevail.

6

5

Share

What Causes the Car Dashboard Lights to Illuminate?

There are several reasons why the car dashboard lights may illuminate, including ECU CAN bus failure and poor contact at the ECU CAN interface. Excessive dirt and carbon deposits can obstruct airflow, preventing accurate control of normal air intake, leading to unstable gas content and poor engine performance. Low fuel pressure combined with poor constant pressure performance results in inadequate system atomization, making the car difficult to start. Dashboard indicator lights can generally be categorized into three types. Daily Indicators: These are the most common lights encountered while driving, such as turn signal indicators, light indicators, seat belt indicators, cruise control indicators, and parking indicators. They serve to indicate the operational status of various vehicle functions. Warning Indicators: Examples include the fuel level indicator and windshield washer fluid level indicator. These lights alert the driver to promptly replenish the corresponding fluids to resolve the issue. Fault Indicators: These include the engine (exhaust system) warning light, oil system warning light, battery and charging system warning light, among others. Fault indicators rarely illuminate under normal circumstances, but when they do, they indicate that the vehicle has encountered a malfunction or abnormality. Minor issues may affect driving safety, while severe ones could potentially damage the vehicle. Immediate inspection and repair are necessary, or contact the vehicle's brand 4S store for assistance.

3

5

Share

What is the normal range for a car's coolant temperature gauge?

Generally, the coolant temperature of a regular household car during normal operation is around 95 degrees Celsius, while some high-performance cars or vehicles with higher thermal efficiency may operate at around 110 degrees Celsius. Cars with higher operating temperatures include BMW models, whose engines can even exceed 110 degrees Celsius under normal working conditions. The vehicle's cooling system is not solely designed for heat dissipation but to help the engine maintain an optimal operating temperature range. Many drivers pay close attention to coolant temperature, and some car dashboards are equipped with a coolant temperature gauge. However, besides coolant temperature, oil temperature is equally important. Excessively high oil temperature can cause the oil to thin, leading to oil film rupture, which results in engine wear. Conversely, if the oil temperature is too low, the oil becomes too viscous, preventing it from adequately lubricating the necessary components. Therefore, oil temperature is also crucial. When driving, it's advisable to avoid prolonged high-speed operation, as this can cause the oil film to rupture, leading to abnormal engine wear. Engine oil also plays a role in heat dissipation. If the engine is low on oil, it can easily overheat, potentially causing cylinder scoring.

17

4

Share

Why Do Hatchbacks Have Rear Wipers?

What is the speed when fully releasing the clutch in first gear while practicing driving?

Is It Necessary to Replace Steel Car Wheels?

What needs to be affixed in the upper right corner of a car?

Can a Car Be Sold After Being Mortgaged?

What Causes the Car Dashboard Lights to Illuminate?

What is the normal range for a car's coolant temperature gauge?

Where to Renew Driver's License in Puyang City in 2021?

What is the Difference Between an Electric Tailgate with Power Latch and Without?

What is the phenomenon of road heat waves?

What are the new vehicle inspection regulations for 2021?