Why does a car display a wrench symbol?

What are the symptoms of a faulty three-way catalytic converter?

The symptoms of a faulty three-way catalytic converter: 1. The performance of the three-way catalytic converter begins to deteriorate; 2. After the core of the three-way catalytic converter becomes clogged, the exhaust flow becomes obstructed, leading to higher exhaust backpressure, and exhaust gases may flow back into the engine. The three-way catalytic converter is an external purification device installed in the vehicle's exhaust system, which converts harmful gases such as CO and HC in the vehicle's exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. The three-way catalytic reactor resembles a muffler, with its exterior made of double-layer stainless steel sheets formed into a cylindrical shape, and insulation material such as asbestos fiber felt placed in the interlayer between the double-layer sheets. Inside, a purifying agent is installed between mesh partitions, with the purifying agent consisting of a carrier and a catalyst.

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How to reset the tire pressure warning on the Tiggo 7?

Method to reset the tire pressure warning on the Tiggo 7: Check and confirm whether the tire pressure is normal. If there is an issue, adjust it to the standard tire pressure, then drive a few kilometers. Generally, the computer will automatically correct and reset at this point. Tire pressure refers to the pressure of air inside the tires. In terms of car maintenance, the engine is the heart of the car, and damage to the engine will lead to the end of the car's life. Similarly, tire pressure is the blood pressure of the car, and the level of tire pressure plays a crucial role in the car's performance and power. The Tiggo 7 is a compact SUV, with a length of 4505mm, a width of 1837mm, a height of 1670mm, and a wheelbase of 2670mm.

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What does the 3C mark on car glass mean?

The 3C mark on car glass refers to the 3C certification, which is the abbreviation of the English name "China-Compulsory-Certification" (China Compulsory Product Certification System). It is a product conformity assessment system implemented by the Chinese government in accordance with laws and regulations to protect consumers' personal safety and national security, as well as to strengthen product quality management. Below is a detailed introduction to the 3C mark: 1. The 3C mark is usually affixed to the surface of the product or molded into the product. The current CCC mark design not only has laser anti-counterfeiting features but also includes a unique serial number for each model, with no duplicates. Consumers can easily distinguish genuine CCC marks by carefully observing them, as they will notice multiple small diamond-shaped "CCC" hidden marks. Additionally, one of the features that makes the CCC mark difficult to counterfeit is the random code printed on the back of each mark. This code specifies the manufacturer and product corresponding to each random code, allowing verification of the product's authenticity. 2. Car glass may also display other domestic and international certification marks. The DOT factory code indicates safety certification by relevant U.S. authorities, while the circle mark with an E country code represents certification by the European Economic Commission (ECE). The following "43R000055" is the code of the relevant European Community regulations that the glass complies with. These international certification marks indicate that the glass has obtained export approval.

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Meaning of Tire Specification Parameters

"Do you know what each specification parameter on a tire means? Let's take the 2021 Q5L as an example. Its tire size is 255/45R20. First, 255 represents the tire width of 255mm. The wider the tire, the stronger the grip, making it more controllable during aggressive driving. The following 45 represents the aspect ratio of the tire. The lower this value, the thinner the sidewall, enhancing sportiness, while a higher value improves comfort. R stands for radial tire, and the final 20 indicates a rim diameter of 20 inches. Larger rim sizes offer a more impressive visual appeal, though they also come at a higher price. Additionally, the "101" and "W" that follow represent the load index and speed rating, respectively. In summary, tire specifications can significantly influence driving experience, and changing tires might drastically alter the vehicle's character."

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Can a tire with a cracked sidewall still be used?

Whether a tire with a cracked sidewall can still be used depends on the situation: 1. If it's just normal rubber aging cracks, it does not affect usage; 2. If it's cut by something sharp, it is recommended to replace the tire promptly. The sidewall of a tire is relatively prone to damage, especially when frequently driving on rough roads or roads with rocks, which can harm the sidewall. If the sidewall is punctured or cut, it is advisable to replace it with a new tire. A tire is a circular elastic rubber product mounted on various vehicles or machinery to roll on the ground, usually installed on metal rims. It supports the vehicle body, cushions external impacts, ensures contact with the road surface, and maintains the vehicle's driving performance.

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What is the overload standard for buses?

The overload standard for buses is: each passenger in the vehicle should occupy an area of no less than 0.125 square meters. In simple terms, this means that a maximum of 8 people can be accommodated per square meter. As long as the number does not exceed 8, it is generally considered safe. Overloading refers to the actual load of a transportation vehicle exceeding the maximum allowable limit, often referring to freight overloading, which is illegal. Overloading poses significant hazards, leading to a large number of traffic accidents that endanger personal and property safety, as well as causing damage to the roads on which overloaded vehicles travel. Buses, also known as city public buses or coaches, are typical models of large and medium-sized passenger vehicles, specifically designed and equipped for urban and suburban transportation as commercial vehicles.

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Why does a car display a wrench symbol?

What are the symptoms of a faulty three-way catalytic converter?

How to reset the tire pressure warning on the Tiggo 7?

What does the 3C mark on car glass mean?

Meaning of Tire Specification Parameters

Can a tire with a cracked sidewall still be used?

What is the overload standard for buses?

What do battery depletion and fuel consumption mean?

How to Reset the Maintenance Reminder on Ford Kuga?

What to do if the car ABS locks up and the engine won't start?

How to turn on the air conditioning in a Volkswagen Santana?