What does it mean when the engine light appears on the dashboard?

Is an Appointment Required for the Subject 4 Exam?

Subject 4 exam requires an appointment. Subject 4, also known as Subject 3 Safety and Civilized Driving Knowledge, consists of a test paper with 50 questions. The questions are primarily presented in the form of case studies, images, animations, etc., with a full score of 100 and a passing score of 90. The main assessment content includes safety and civilized driving operation requirements, safe driving knowledge under adverse weather and complex road conditions, emergency handling methods for situations such as tire blowouts, and post-accident handling knowledge. Open the "Traffic Management 12123" APP and enter the software homepage. After entering the main interface, click "More" to access the business center. Find "Driver's License Services" and click to enter, then locate "Exam Appointment" and proceed. Select a suitable exam venue from the options provided by the system. Enter the "Exam Appointment Business Instructions" reading interface, wait for 5 seconds, and then click the "Read and Agree" option at the bottom of the page. Choose the exam date and session based on personal preference, then click the "Appointment" button at the bottom right of the page to submit the appointment information. Enter the received verification code in the APP, and after inputting the code, click the "Submit" button to complete the appointment application. Note that the system does not have an option for "Subject 4" but rather "Subject 3 Safety and Civilized Knowledge Exam."

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Will a Car Fire Extinguisher Explode Under High Temperatures When Left in the Car?

Fire extinguishers placed in the car will not explode due to high temperatures. Below is some extended information about car fire extinguishers: Precautions for using car fire extinguishers: The best locations to place a fire extinguisher in the car during summer are generally under the driver's seat or in the glove compartment. Larger ones can be placed in the trunk to avoid direct sunlight and ensure easy access. Regularly check the condition of the fire extinguisher. Car fire extinguishers come with a pressure gauge; if the needle is in the green zone, it indicates normal pressure and proper functionality. If it's in the yellow zone, the pressure is too high, and if it's in the red zone, the pressure is too low—both of which can affect the extinguishing performance, and the extinguisher should be replaced promptly. For most car owners, car fire extinguishers often expire before they are ever used, though it's best if they are never needed. In the event of a car fire, it is crucial to aim the extinguisher directly at the source of the fire; otherwise, it will be ineffective. Types of car fire extinguishers: Car fire extinguishers are specifically designed for vehicle fires and fall into two main categories: non-pressurized hanging ultra-fine dry powder automatic fire extinguishing devices for vehicles and miniature pressurized hanging ultra-fine dry powder automatic fire extinguishing devices for vehicles. Most car fire extinguishers are portable. The main types of car fire extinguishers available on the market include aerosol fire extinguishers, dry powder fire extinguishers, ultra-fine dry powder fire extinguishers, carbon dioxide fire extinguishers, and water-based fire extinguishers.

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Does broken car glass count as vehicle damage insurance?

Broken car glass does not count as vehicle damage insurance. Because the risk of glass breakage only covers the windshield and the window next to the driver's seat, excluding the car's sunroof. The upper right corner of the front windshield will have labels such as compulsory insurance, annual inspection, and environmental protection. These labels are one-time. If the glass is broken and needs to be replaced, the cost of replacing these labels should be borne by the owner. Many electronic devices, such as dash cams and ETC, are installed on the inside and upper part of the front windshield. If these devices are damaged due to glass breakage, the insurance company will not compensate for the loss except for the glass itself. There is no damage compensation when installing glass or repairing the car. In the insurance terms of vehicle damage insurance, the exclusions are clearly defined: separate glass breakage, body scratches without obvious collision marks, and separate damage to the sunroof or rearview mirror; the insurance company is not responsible for compensation. Principles of vehicle damage insurance: Motor vehicle damage insurance is one of the basic types of motor vehicle insurance, referred to as vehicle damage insurance. Its insurance subject is the motor vehicle itself. When the insured vehicle suffers losses due to natural disasters or accidents within the scope of insurance liability, the insurer compensates according to the provisions of the insurance contract. Collision and overturning. Collision refers to the direct contact between the insured vehicle and external objects. Artificial scratches on the insured vehicle are not covered by vehicle damage insurance. Overturning means the insured vehicle is overturned due to natural disasters or accidents, losing its normal state and driving ability, and cannot be restored without rescue. Fire, explosion, collapse of external objects, falling objects from the air, or parallel falling of the insured vehicle while driving. Lightning, storms, tornadoes, heavy rain, floods, tsunamis, ground collapse, ice collapse, cliff collapse, avalanches, hail, mudslides, and landslides. The ferry carrying the insured vehicle suffers from natural disasters.

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Why Does the Car Cover Turn Blue?

Car cover turning blue is due to color fading, and it may also be caused by neglecting the maintenance of the car cover. Below is an introduction to car covers: Features of Car Covers: High-quality car covers are made of high-density flame-retardant fabric; they offer excellent waterproofing effects; car covers have flame-retardant functions, meaning they do not catch fire. Unlike ordinary car covers, which can easily ignite when exposed to sparks, posing significant hazards, this flame-retardant car cover does not catch fire. The exposed area will not burn, and the melted part will not spread, ensuring great safety. Additionally, the material of the car cover is soft and will not scratch the car paint. Functions of Car Covers: With a car cover, harmful dust can be effectively prevented from entering the cabin and engine compartment, protecting the interior from aging and reducing mechanical wear. It can effectively shield the car's surface from acidic rain and snow in polluted urban environments. It also provides strong resistance to UV damage on the car paint, interior, and tires. How to Use a Car Cover: If the front strap is closed, put it on from the head. If the rear strap is open, use a buckle lock (or other locks) to secure the car cover to the rear of the car, which cannot be removed without a dedicated key. Then, attach the springs on both sides of the car cover. Car Cover Maintenance: If the car cover gets wet in the rain, remove it promptly once the weather clears, ensuring all moisture is removed to keep the cover dry. Only then can it be used again next time. If the car cover is not dried, moisture may get trapped inside when folded, and the damp cover could affect the car's paint when used again.

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What does 120/70-12 mean for a tire?

120 refers to the tread width of the tire in millimeters, 70 refers to the tire height of 70 millimeters, and 12 refers to the diameter of the rim. Tire: A tire is an elastic rubber product in the shape of a circular ring that is assembled on various vehicles or machinery to roll on the ground. It is usually mounted on a metal rim, supports the vehicle body, cushions external impacts, ensures contact with the road surface, and guarantees the vehicle's driving performance. Tires are often used under complex and demanding conditions, enduring various deformations, loads, forces, and high and low temperatures during operation. Therefore, they must possess high load-bearing capacity, traction performance, and cushioning performance. At the same time, they are required to have high wear resistance and flex resistance, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used for tire production, highlighting the significant demand for rubber in tires. Introduction to Tire Models: Tire model markings mostly appear as: 215/70R15. The meanings of these numbers are as follows: 215 represents the tire section width in millimeters, generally ranging between 145—285mm with intervals of 10mm; 70 is the aspect ratio, which is the ratio of the tire sidewall height to the tire section width, where 70 represents 70%. Generally, the aspect ratio of tires ranges between 30%—80%. Under normal circumstances, ordinary cars should not use tires with an aspect ratio >75%, while luxury cars and high-performance sports cars are recommended to use tires with an aspect ratio <60%; R is the abbreviation for Radial, indicating that the tire has a radial structure, and 15 is the outer diameter of the rim in inches. If a tire is marked as 6.00—12, it indicates that it is not a radial tire but a bias-ply tire. Such tires are rarely seen on cars today due to their poor safety, load capacity, and high-speed stability, and are only used in some low-end off-road vehicles and heavy-duty trucks.

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Is a Major Maintenance Service Absolutely Necessary at 60,000 Kilometers for a Car?

Yes, a major maintenance service is required at 60,000 kilometers for a car. For vehicles using fully synthetic oil, maintenance should be performed every 10,000 kilometers or once a year, while for those using semi-synthetic oil, it should be done within 7,000 kilometers or every 7 to 9 months. Additional information on car maintenance: Minor Car Maintenance: The frequency of minor car maintenance depends on the type of engine oil used, which is mainly categorized into two types: fully synthetic oil and semi-synthetic oil; mineral oil is largely obsolete. The current common maintenance schedule is to change semi-synthetic oil within 7,500 kilometers or every 7 to 9 months, while fully synthetic oil is typically changed once a year or every 10,000 kilometers, especially SN-grade fully synthetic oil, which can even extend to over 12,000 kilometers before needing a change. Minor maintenance is also closely related to the driver's habits and the vehicle's driving conditions. More aggressive driving with frequent hard acceleration consumes more engine oil, thus shortening the maintenance interval. Similarly, frequent city driving with low speeds and constant stop-and-go conditions also reduces the maintenance cycle. However, under normal driving conditions without special requirements, fully synthetic oil can be changed every 10,000 kilometers or once a year, and semi-synthetic oil within 7,000 kilometers or every 7 to 9 months, both within safe limits. Major Car Maintenance: Engine Coolant Maintenance: The coolant should generally be replaced every 2 to 3 years or 40,000 kilometers. Prolonged use without replacement can lead to aging, deterioration, increased deposits, reduced flow, and diminished cooling capacity, which may cause overheating in summer. Engine Timing Belt Replacement: The timing belt is a critical component of the engine's valve system, ensuring accurate intake and exhaust timing by connecting to the crankshaft at a specific ratio. Replacement intervals vary but are typically between 60,000 to 100,000 kilometers. Regular inspections are advised, and if signs of cracking, sudden increases in fuel consumption, or poor performance appear, replacement should be considered. Engine Spark Plug Replacement: Spark plugs introduce high voltage from the ignition coil into the engine cylinders, generating sparks to ignite the air-fuel mixture. Damaged spark plugs can lead to misfires and irregular engine vibrations. Replacement intervals vary, but generally, spark plugs should be replaced after 60,000 kilometers. Transmission Fluid Maintenance: Transmission types include MT, AT, CVT, and DCT. MT and DCT transmissions require minimal fluid maintenance, often considered lifetime-free. AT transmissions are more mature and rarely need fluid changes, but if concerned, a change every 100,000 kilometers is optional. CVT transmissions demand higher fluid quality and should be serviced periodically, though intervals can extend beyond 80,000 kilometers. Brake Fluid and Brake Pad Maintenance: Brake fluid should be replaced when its water content exceeds 4%, as high temperatures can cause vaporization, leading to reduced braking efficiency. Brake pads should be replaced when their thickness falls below 5mm or if uneven wear is detected. New pads are about 15mm thick. Tire Maintenance: As the only contact point between the car and the road, tires significantly impact safety. Maintenance is based on either time (3 to 5 years) or mileage (50,000 to 60,000 kilometers). Rubber deteriorates over time, reducing tire strength, and excessive wear or thinning requires prompt replacement.

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What does it mean when the engine light appears on the dashboard?

Is an Appointment Required for the Subject 4 Exam?

Will a Car Fire Extinguisher Explode Under High Temperatures When Left in the Car?

Does broken car glass count as vehicle damage insurance?

Why Does the Car Cover Turn Blue?

What does 120/70-12 mean for a tire?

Is a Major Maintenance Service Absolutely Necessary at 60,000 Kilometers for a Car?

What does 2x mean on a car key?

Can Insurance Cover Vehicles Submerged in Floods?

Will Tires Get Punctured When Running Over Stones?

What Type of Oil is Light Fuel Oil?