What Are the Common Knowledge Points for Car Usage?

What Materials Are Needed for a Car's First Maintenance?

Items required for the first maintenance include: driver's license; maintenance manual; warranty manual; owner's ID card; vehicle registration certificate; vehicle purchase invoice, to be taken to the designated first maintenance facility for the vehicle's initial service. Important note: Make an appointment with the 4S shop in advance. The first maintenance refers to the initial service after a new car has been driven, with the specific time varying by vehicle, generally around 5,000 kilometers or six months. It is essential to attend the first maintenance promptly, neither in advance nor delayed. The completion of the first maintenance marks the end of the car's break-in period, allowing it to be driven at standard loads and normal speeds as required by the vehicle. The timing for the first maintenance is calculated from the date of vehicle pickup. There are two indicator values for the first maintenance: mileage and time. Whichever comes first serves as the standard. First maintenance items include: changing the engine oil and oil filter, cleaning the air filter, checking various fluid levels for normalcy, inspecting the generator belt and wiper blades for damage, checking tire pressure for normalcy, and examining tires for damage or bulges, etc. Required time: Completing all tasks takes approximately 2 hours. The most crucial aspect of a new car's first maintenance is changing the engine oil and oil filter. When changing the oil, the oil filter must also be replaced simultaneously, and the selection of engine oil must refer to the "Vehicle Usage and Maintenance Manual," as different vehicle models specify different oil grades. Maintenance precautions: Do not rinse the interior of the car body with water: Many people clean their cars during holidays, washing the body with water and wiping it with a cloth. Here, it's important to note that the interior of the car body should not be directly washed with water. If the floor mats are dirty, use a vacuum cleaner or take them out to brush with detergent, dry them, and then put them back. There are many drainage holes under the rubber mats on the floor of the driver's compartment. If water enters, it won't dry but will flow through these holes to areas like the gearbox, causing erosion and corrosion. The better approach is to clean with a vacuum and then wipe with a cloth to prevent water accumulation. Do not mix different brands of antifreeze: When the car's antifreeze is low, it's advisable to drain the existing antifreeze and add the same brand from the start. Since antifreeze brands differ, their chemical properties vary significantly. Various functional additives can corrode others. Different brands of antifreeze use different additives, so they should not be mixed to avoid unnecessary trouble. Do not lubricate wheel bolts and nuts: When bolts on a moving car rust, they are often oiled to function properly again. To prevent rust on wheel bolts and nuts, some apply lubricant, but this poses a safety risk. At high speeds, bolts and nuts can loosen or even fall out, leading to driving malfunctions. No need to press the accelerator when starting an EFI car: The starter of an EFI car differs from that of a conventional car. Its fuel injection control device can automatically adjust the fuel supply based on the starter's temperature and working conditions, ensuring a smooth start.

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Is a CVT Transmission an Automatic Transmission?

CVT transmission is a type of automatic transmission, but automatic transmission does not necessarily mean CVT. Car transmissions can be divided into two main categories: manual transmission (MT) and automatic transmission (AT). Continuously Variable Transmission (CVT): The CVT system mainly consists of basic components such as the driving pulley set, driven pulley set, metal belt, and hydraulic pump. The biggest difference between CVT and conventional automatic transmissions is that CVT uses a steel belt drive, achieving gear ratio changes through variable-diameter pulleys, resulting in seamless shifting. Advantages and Disadvantages of CVT Transmission: Advantages: Since CVT lacks the gear sets found in conventional automatic transmissions, there is no shifting process, eliminating the associated jerky gear changes. As a result, CVT delivers smooth, linear power output, providing a very comfortable driving experience. Theoretically, CVT can have an infinite number of gear ratios, allowing for more flexible gear settings. It also makes it easier to achieve an optimal balance between gear ratios, performance, fuel consumption, and emissions compared to traditional transmission systems. Disadvantages: Compared to conventional automatic transmissions, CVT has not been widely used in cars for long, and vehicles equipped with CVT are still relatively rare in the domestic market. This means maintenance costs for CVT are higher, and improper operation increases the likelihood of issues. CVT transmissions have limited torque capacity; except for Audi A6's Multitronic transmission, most CVTs cannot handle heavy loads and are only suitable for small cars with engine displacements of around 1 to 1.5 liters.

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Is a Full-Coverage Trunk Mat Necessary?

The necessity of a full-coverage trunk mat depends on storage conditions. If the trunk is not frequently used for storing items or only holds a small number of items, a non-full-coverage trunk mat is more practical. However, if you often place large quantities of items with sharp edges in the trunk, opting for a full-coverage trunk mat is more appropriate. Trunk mats can effectively protect the vehicle's trunk, preventing scratches and damage. Especially for frequently used vehicle trunks, some wear and tear is inevitable. Using a trunk mat can reduce this wear. Trunk mats are typically made of faux leather material, making them easy to clean with just a wipe. After getting wet, they must be thoroughly dried before reinstallation to avoid issues like excessive moisture or mold, which could affect normal use. Car trunk mats, also known as car boot liners, are mats placed at the bottom of the car trunk. The car trunk is a space for storing items, and the mat integrates five main functions: water absorption, dust absorption, stain removal, sound insulation, and protection of the trunk carpet, making it an eco-friendly automotive interior component.

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What is the optimal tire pressure for Mercedes-Benz GLA?

According to the international GBT2978-2008 standard requirements, the standard tire pressure for Mercedes-Benz GLA is 2.4-2.5bar. In winter, the tire pressure should be slightly increased by about 0.2bar based on the standard tire pressure. In summer, the tire pressure can generally be about 0.1bar lower than the standard to prevent tire blowouts due to high temperatures. Tire pressure reset method: First, turn on the ignition switch, press and hold the tire pressure monitoring reset button until you hear a "beep" sound, then release it. The tire pressure monitoring system will store the current normal tire pressure data, automatically clear the previous data, and finally the dashboard warning light will turn off, indicating the tire pressure reset is complete. There are generally three reasons for abnormal tire pressure: Abnormal tire pressure: The system will alert when the pressure is generally below 1.8bar or above 3.0bar. In this case, tire inspection and pressure adjustment are required. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure is not reset in time, the tire pressure monitoring system will still record the previous data, causing the tire pressure monitoring indicator light to turn on. Simply perform a tire pressure reset to resolve this. Damaged tire pressure sensor: The tire pressure sensor, which monitors tire pressure, is directly installed inside the tire and connected to the tire inflation port. If the sensor is damaged during driving, it will also cause the tire pressure warning light to turn on. For sensor damage issues, only replacement with a new part is possible.

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What does the triangle warning light with an exclamation mark mean?

A triangle with an exclamation mark inside indicates a malfunction in the vehicle's general performance or components and functions. Common issues include parking sensor failure, fuel cut-off system intervention or malfunction, external light failure, or engine oil pressure sensor failure. Solution: It is necessary to visit a 4S shop for inspection to identify the source of the fault. The exclamation mark is a common fault warning in cars. Besides the triangle with an exclamation mark, there are four other forms of exclamation mark warnings: a yellow gear with an exclamation mark inside, a red circle with parentheses and an exclamation mark in the middle, a yellow parenthesis with a horizontal line and an exclamation mark in the middle, and a yellow bulb with an exclamation mark. Below is a detailed analysis of these four situations: Automatic transmission fault: A yellow gear with an exclamation mark inside indicates an automatic transmission fault warning light, meaning there is a transmission issue or the transmission fluid is below the normal range. The transmission fluid should be replaced promptly. Brake system fault: A circle with parentheses and an exclamation mark in the middle represents a brake system warning, primarily indicating a brake system malfunction or low brake fluid level. The brake system should be inspected immediately to avoid accidents. Tire pressure anomaly: A parenthesis with a horizontal line and an exclamation mark in the middle represents the tire pressure monitoring warning light. This light turns on when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting fault: A yellow bulb with an exclamation mark is the lighting fault indicator, signaling a malfunction in the vehicle's lights. Solution: Visit a 4S shop as soon as possible for inspection and repair. Alternatively, you can perform a self-check, focusing on commonly used bulbs such as turn signals, fog lights, and interior lights, to identify the issue.

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Can I Renew My Driver's License on Weekends?

Driver's license renewal cannot be processed at the vehicle management office on weekends. Renewal at the Vehicle Management Office: The driver must submit the required materials to the vehicle management office where the driver's license was originally issued. The office will process the renewal within one working day upon approval. Required materials: two copies of ID card, two recent 1-inch color passport photos, original ID card, original driver's license, and a medical examination certificate from a county-level or above hospital (free medical examination is also available at the vehicle management office). Driver's license renewal cannot be processed at the vehicle management office on Sundays. Apart from applying at the vehicle management office, renewal can also be processed through the following methods: Renewal via the "Traffic Management 12123" APP. Download the "Traffic Management 12123" APP, then select Service Center -- License Renewal Service -- Fill in the required information. The new license is usually delivered by mail. Visit the "Police-Medical-Post" service point at a postal office for renewal. The entire process, from registration to medical examination and new license production, takes only half an hour. Currently, only a few cities offer this service, such as Hangzhou.

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What Are the Common Knowledge Points for Car Usage?

What Materials Are Needed for a Car's First Maintenance?

Is a CVT Transmission an Automatic Transmission?

Is a Full-Coverage Trunk Mat Necessary?

What is the optimal tire pressure for Mercedes-Benz GLA?

What does the triangle warning light with an exclamation mark mean?

Can I Renew My Driver's License on Weekends?

How many people can the BMW M4 seat?

Is the Beijing BJ80's Engine Made by Mercedes-Benz?

What is the top speed of the GAC Trumpchi M6?

Why is the V97 cheaper than the V93?