How to use ETC normally?

Why is there no Yun B license plate?

The Yun B license plate originally belonged to Dongchuan District. Later, due to reasons such as reduced mining activities in Dongchuan, it was downgraded to a district of Kunming, hence the Yun B license plate was discontinued. Below are three methods to verify the authenticity of a license plate: Insurance Verification: Retrieve a copy of the compulsory traffic insurance document and check whether the vehicle's license plate number, model, and chassis number match the details on the document. DMV Website Verification: Log in to the local traffic police website or DMV website, navigate to the vehicle information query section, and enter the vehicle's license plate number and chassis number. All vehicle information will be displayed, including purchase date, annual inspection date, owner's name, model, and vehicle color. Traffic Violation Office Verification: Visit the local traffic violation office in person (this is the simplest, most direct, and most effective method). Bring your ID card, driver's license, and vehicle registration certificate, submit them to the staff, and they will assist you with the query.

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What is the difference between 91V and 91W tires?

The differences between 91V and 91W tires lie in their speed ratings and load indexes, with specific details as follows: Speed rating: The 'V' indicates that the tire can sustain a maximum speed of 240 km/h, while the 'W' denotes a maximum speed capability of 270 km/h. Load index: Both 91W and 91V tires can bear a load of 615 kg. Below is extended information about automotive tire specifications: Specification representation: Tires are crucial components of vehicles, coming in various specifications and models suitable for different vehicle types. Specification markings are typically found on the tire sidewall as a series of alphanumeric characters, representing tread width, aspect ratio, type, rim diameter, load index, and speed rating. Speed rating: Tire speed ratings are categorized from A to Z based on their maximum sustainable speeds, with the A class further divided into eight subcategories (A1-A8). The later the letter appears in the alphabet, the better the tire's performance.

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Is it suitable to take the Subject 2 driving test on a rainy day?

It is not suitable to take the Subject 2 driving test on a rainy day. Below are relevant details about the Subject 2 test: Subject 2 penalty details: Not wearing a seatbelt deducts 100 points, starting the car without the gear in neutral deducts 100 points, not using the turn signal or using it incorrectly deducts 10 points, stalling the car once deducts 10 points, driving over the edge line deducts 100 points, stopping for more than two seconds during the test deducts 5 points, not following the designated route or sequence deducts 100 points, failing to park the car in the designated spot during reverse parking deducts 100 points, and the car body crossing the line deducts 100 points. Subject 2 test precautions: Before starting, clean the side mirrors and window frames outside the car. Adjust the side mirrors and seat inside the car and secure them. Always remember to fasten the seatbelt. During the reverse parking test, it is best to choose the parking spot at the very back. You can stop and wait before entering the parking spot. Once inside, there will be a broadcast saying "Reverse parking test begins."

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Is It Normal for the Exhaust Pipe to Have Water in Winter?

It is a very normal phenomenon for the exhaust pipe to drip water in winter. After gasoline is completely burned, it produces water and carbon dioxide. At high temperatures, the water is in the form of steam, but when it comes into contact with the cooler exhaust pipe, the steam condenses into liquid water. Therefore, it is natural for some cars' exhaust pipes to drip water in winter. The following points prove that water dripping from the car's exhaust pipe is normal: 1. Correct air-fuel mixture ratio: When the vehicle's air-fuel mixture ratio is correct, water dripping from the exhaust pipe is normal. Whether it's an electronic fuel injection or carburetor engine, a correct air-fuel mixture ratio indicates that the vehicle's compression ratio is normal, and fuel consumption is within the normal range. 2. Normal engine cylinder pressure: When the vehicle's exhaust pipe drips water normally, it indicates that the engine cylinder pressure is normal, and it also shows that there is no wear in the engine cylinder block. All parts inside the engine can work properly, and this method can be used to determine whether the fuel is burning normally. 3. Normal exhaust temperature: Normal water drainage from the vehicle's exhaust pipe also indicates that the exhaust temperature is normal, meaning the engine's power output is stable.

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Can a car continue to be driven if the frame is damaged?

A car with a damaged frame can continue to be driven mainly depending on the extent of collision damage and the quality of post-repair maintenance. If the damage is limited to the front of the frame and does not affect the shock absorber area, the car can be repaired and driven afterward. However, if the damage is severe and the repair quality is poor, it is not recommended to continue driving. The frame serves as the car's foundation, typically consisting of two longitudinal beams and several crossbeams, supported by the suspension system, front axle, and rear axle on the wheels. Under normal circumstances, a car's frame does not deform. Deformation usually occurs only in vehicles involved in accidents. The frame is designed with sufficient strength and stiffness to bear the car's load and impacts transmitted from the wheels. The car's frame is supported on the wheels by the suspension system's front and rear axles, carrying almost all the weight of the vehicle and its cargo. The frame is primarily composed of longitudinal and crossbeams, specifically categorized into side-beam and longitudinal-beam types. The material used for the frame is mostly high-strength steel plates, connected via riveting to form a rigid structure, ensuring it has enough strength and stiffness to withstand the car's load and impacts from the wheels.

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What is the maintenance interval for the Audi A4?

According to Audi's official maintenance manual, the recommended maintenance interval is every 10,000 kilometers or 1 year. This means it's perfectly acceptable to follow this schedule for servicing at authorized 4S dealerships, which has been confirmed by multiple dealerships. Audi Maintenance Precautions: 1. Avoid prolonged engine operation in unventilated garages: Engine exhaust contains carbon monoxide, an invisible and odorless toxic gas. Prolonged exposure to low concentrations of carbon monoxide can cause headaches, rapid breathing, nausea, vomiting, weakness, dizziness, mental confusion, and even brain damage. If starting the engine in a garage, always keep the garage door open or use ventilation equipment to expel exhaust gases. Even when working outdoors, avoid staying near operating engine exhaust pipes for extended periods. 2. Never siphon fuel with your mouth: Gasoline is not only flammable and explosive but also toxic. Leaded gasoline can damage the nervous system, digestive tract, and kidneys. Additionally, gasoline contains high concentrations of sulfides, and hydrogen sulfide is poisonous. Ingesting gasoline can lead to poisoning or death. If accidentally ingested, induce vomiting immediately and seek medical attention. 3. Avoid contact with carburetor cleaner: Most carburetor cleaners contain methyl chloride, aromatic compounds, and ethanol, all of which are toxic. Inhaling these substances or getting them on your skin or eyes can be hazardous. 4. Prevent mechanical injuries: Vehicle maintenance involves various aspects, and clear warning signs should be set up during operations to prevent accidental injuries from others' mistakes. When starting the car, check the transmission's gear position to prevent accidental movement that could harm someone. When working under the hood, ensure others are out of the driver's seat to avoid injury from sudden engine movement or control activation. For undercarriage work, use clear markers and secure the vehicle with wheel chocks. When using a jack, ensure it's placed on stable ground. Always use proper jack stands—never use fragile objects like bricks. When installing assemblies, never test screw or lock holes with your fingers to avoid injury. Never work under the vehicle during engine tests. 5. Prevent fires: During maintenance, flammable and explosive materials like fuels and cleaners are often used. Always have fire extinguishers ready as a precaution. Avoid smoking near the fuel tank or battery, as escaping fuel vapors and hydrogen from the battery are highly flammable.

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How to use ETC normally?

Why is there no Yun B license plate?

What is the difference between 91V and 91W tires?

Is it suitable to take the Subject 2 driving test on a rainy day?

Is It Normal for the Exhaust Pipe to Have Water in Winter?

Can a car continue to be driven if the frame is damaged?

What is the maintenance interval for the Audi A4?

What does it mean when the SET light on the car dashboard is on?

If China 6 is implemented, can China 5 vehicles still be registered?

What are the disadvantages of a manual-automatic transmission?

Is 2.8 bar tire pressure normal?