Is it necessary to watch videos for Subject 3?

What does the ABS light indicate as a fault?

ABS light indicates three possible faults: 1. Wheel speed sensor failure; 2. Poor contact in the connecting circuit; 3. Electronic control unit failure. ABS stands for Anti-lock Braking System, whose main function is to prevent wheel lock-up during emergency braking. If the front wheels lock up simultaneously, the car will continue in a straight line, losing steering control and the ability to avoid obstacles. If the rear wheels lock up simultaneously, the car may skid or spin dangerously under lateral forces. The ABS system mainly consists of wheel speed sensors, an electronic control unit, ABS modulator valves, an ABS warning light, and hydraulic control lines. Its primary function is to automatically regulate the braking force during braking, preventing wheel lock-up and maintaining a rolling-sliding state to ensure maximum traction between the wheels and the road surface.

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What is Coolant?

Coolant, fully known as antifreeze coolant, refers to a cooling liquid with antifreeze properties. Its function is to carry away the heat from the engine through circulation, helping to maintain the engine temperature at around 90 degrees Celsius. This ensures high thermal efficiency, smooth operation, and strong power output from the engine. Since coolant remains in liquid form during winter without freezing, it prevents the backflow and freezing of engine condensate, thereby protecting the engine and its pipelines. Hence, it is also called antifreeze. The functions of coolant include corrosion prevention, cavitation and leakage prevention, radiator boil-over prevention, scale prevention, and freeze protection, ensuring the cooling system remains in optimal working condition and maintaining the engine's normal operating temperature.

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What is laufenn tire?

Laufenn is a new sub-brand launched by Hankook Tire, with its product line covering passenger cars, SUVs and light trucks, offering various products such as summer tires, winter tires, all-season tires, and all-terrain tires for these vehicles. The following is a related introduction to tires: 1. The main functions of tires include dry grip, hydroplaning resistance, comfort provision, noise reduction, impact resistance, wet grip, load capacity, handling performance, average wear, and mileage. 2. The cross-sectional structure of a tire can be roughly divided into four parts: tread, shoulder, sidewall, and bead. Each part has its own function. The tread mainly contacts the ground, the shoulder and sidewall provide support, and the bead contacts the rim to provide sealing.

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How to Turn Off the Constantly Flashing Anti-Theft Light?

Anti-theft light flashing is a normal phenomenon; simply unplug the light tail connector. The flashing of the anti-theft indicator light indicates that the vehicle's anti-theft system is activated and in working condition. Below are specific details about the anti-theft light: When the key is inserted into the ignition switch lock cylinder and turned to the "ON" position, if the password verification is successful, the warning light will be off, allowing the engine to start. If the password verification fails, the warning light will continue to flash at a frequency of once every 2 seconds. When the vehicle is in an unoccupied and locked state, the electronic anti-theft system enters sleep mode, and the warning light will flash at a frequency of once every 5 seconds. If the car engine's anti-theft light flashes at a frequency of once every 1 to 2 seconds, it is a normal phenomenon. There is no need for the owner to deactivate it, and the power consumption is minimal. If the anti-theft light does not illuminate, it indicates a malfunction in the vehicle's anti-theft device or the anti-theft light, requiring prompt repair at a service center or 4S shop.

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Can 92 and 95 gasoline be mixed?

92 and 95 gasoline cannot be mixed. Here are the specific details: 1. Gasoline octane rating: It is the ratio of the actual gasoline's anti-knock performance to that of standard gasoline. The higher the octane number, the stronger the anti-knock performance. Standard gasoline is composed of isooctane and n-heptane. However, a higher octane number is not always better; the gasoline grade should be reasonably selected based on the engine's compression ratio. 2. If a car designed for 92 gasoline is filled with 95 gasoline, it will not cause significant damage to the car, but it may lead to incomplete combustion, resulting in engine carbon deposits. Conversely, if a car designed for 95 gasoline is filled with 92 gasoline, under the same compression conditions, 92 gasoline is more prone to explosive combustion than 95 gasoline, which can cause premature combustion and lead to engine knocking.

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Where is the water temperature gauge of the new Bora?

The water temperature gauge of the new Bora is located in the LCD display in the middle of the instrument panel. When the water temperature warning light on the instrument panel comes on, it is not advisable to continue driving. You can stop the car and wait for the water temperature to drop before driving to a service station for inspection and repair. More information is as follows: 1. The normal operating temperature of the new Bora's radiator is 90°C. When the car engine is running normally, it requires a certain operating temperature. Too high or too low is not conducive to the normal operation and performance of the engine. On the other hand, the heat generated by the engine is difficult to meet the demand with conventional air cooling, so water cooling is widely used in car engines. The function of the cooling system is to keep the engine operating within the most favorable temperature range to improve engine power and reduce engine wear and fuel consumption. Too high or too low temperature will have adverse effects on the engine's operation. 2. If the water temperature warning occurs during high-speed driving, you should pull over safely, but do not turn off the engine immediately. Instead, let it idle for two or three minutes, open the engine hood, and then call for assistance. Because when the water temperature warning occurs, the engine is running at high speed, and a large amount of heat generated by the engine has not been dissipated. Therefore, it is necessary to let the water temperature drop slightly while idling to minimize the damage caused by high temperature to the engine.

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Is it necessary to watch videos for Subject 3?

What does the ABS light indicate as a fault?

What is Coolant?

What is laufenn tire?

How to Turn Off the Constantly Flashing Anti-Theft Light?

Can 92 and 95 gasoline be mixed?

Where is the water temperature gauge of the new Bora?

What Are the Signs of a Dirty Air Filter?

How to Set Up One-Touch Window Roll-Up?

What does it mean when the cruise light is on?

How to Use the Handbrake in an Automatic Transmission Car?