What is the method for replacing car brake fluid?

Is 4S AC Pipeline Cleaning Necessary?

AC pipeline cleaning is necessary. During long-term use, the pipeline system of a car's AC can gradually become dirty, even breeding fungi, various bacteria, and emitting unpleasant odors. More information on car AC systems is as follows: 1. Condition: The car AC evaporator, fan, etc., are in a closed and dark state for a long time, creating a high-temperature and humid internal environment. Impurities, dust, bacteria, and viruses in the air enter the AC system and, combined with condensation, clog components like the evaporator. Over time, they accumulate large amounts of dirt, nicotine, mold, fungi, etc. 2. Hazards: The harm of unpleasant odors from car AC systems is not just about the smell. Numerous experiments have proven that water vapor adhering to the AC evaporator produces at least three types of molds harmful to human health: Aspergillus, Penicillium, and Cladosporium. Although there are currently few complaints related to car AC systems, medical tests indicate that these molds can harm human health in seven ways: causing headaches, fever, sudden sore throat, tonsil infections, asthma, flu-like symptoms, dermatitis, and delayed wound healing, among other adverse reactions.

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Is an Automatic Transmission the Same as a Dual-Clutch Transmission?

An automatic transmission is not the same as a dual-clutch transmission, but a dual-clutch transmission can be classified as an automatic transmission. Below is an introduction to automatic transmissions and dual-clutch transmissions: 1. Origin of Dual-Clutch Transmissions: Dual-clutch transmissions are a technology developed based on the principles of automatic transmissions. Although they operate very differently from traditional automatic transmissions, they appear similar in design, leading many to categorize them as automatic transmissions. 2. Function of Dual-Clutch Transmissions: A dual-clutch transmission vehicle has two sets of clutch systems—one controls the odd-numbered gears, while the other controls the even-numbered gears. The advantage of this setup is that while one system is engaged, the other is already prepared to shift. As a result, whether upshifting or downshifting, there is no loss of power due to disengaging the clutch, making the driving experience smoother and more comfortable.

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What is a Tubeless Tire?

Tubeless tires, also known as 'low-pressure tires' or 'pneumatic tires,' are inflatable tires without an inner tube. Tubeless tires offer high elasticity and wear resistance, along with excellent adhesion and heat dissipation performance. Below is an introduction to tubeless tires: 1. Safety: The surface of a tubeless tire is made of high-quality rubber. After inflation, the surface tension increases, creating a certain pressure on the inner surface, which enhances its self-sealing ability against punctures. If punctured, unlike conventional tires that lose all air instantly, tubeless tires maintain air pressure for a certain period, ensuring safety during high-speed driving. 2. Low Fuel Consumption: Tubeless tires in metric sizes such as 315/80R22.5, 295/80R22.5, and 275/70R22.5 are flat tires with a zero crown angle, providing strong adhesion. They maintain good driving stability and low friction, contributing to shock absorption and higher speeds. The high positioning accuracy of the belt layers reduces radial wheel runout and resistance, thereby saving 3% on fuel consumption.

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What to Do When the SVS Warning Light Comes On?

When the SVS light in a car comes on, it indicates an engine fault. Normally, the SVS light will illuminate when the ignition key is turned on and then turn off after the vehicle starts. If the SVS light comes on while driving, it means there is a fault in the vehicle's engine. Here are the solutions for the SVS light: 1. When the powertrain self-diagnosis detects an abnormality: The SVS light will alert the user to inspect and repair the vehicle. 2. Possible sources of the SVS light warning: Engine, transmission, or gear shift mechanism. If the SVS indicator stays on, it means the engine control unit has detected incorrect signals from various sensors or signals that exceed usage standards. In this case, diagnostic tools are required for inspection and repair, and prolonged driving is not recommended. 3. If the SVS light turns off later: Frozen data can be used for fault analysis, and it is advisable to visit a repair shop for inspection or repair.

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Which is more fuel-efficient, recirculating air or fresh air mode in car air conditioning?

Using recirculating air mode in car air conditioning is slightly more fuel-efficient than fresh air mode, but the actual difference is minimal. The fuel consumption in fresh air mode is about 0.1 liters per 100 kilometers higher than in recirculating air mode, which is negligible. Here are the relevant details: 1. Fresh air mode introduction: Fresh air mode draws air from outside the vehicle, directs it to the air conditioning system for heating or cooling, and then blows it out through the vents. This mode replenishes fresh air and improves the air quality inside the car. However, if the outside weather is extremely dry and hot, the air conditioning compressor has to work continuously to cool the hot air from outside, consuming additional fuel. 2. Recirculating air mode introduction: Recirculating air mode circulates the air inside the car. The air conditioning system draws in the cabin air, cools it, and then returns it to the cabin. Once the cabin temperature reaches the set value, the air conditioning compressor stops working, reducing the engine load. Therefore, the faster the cabin temperature drops to the set value, the sooner the engine load decreases, leading to lower fuel consumption.

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Is Fuel System Cleaning at 4S Stores Necessary?

Fuel system cleaning is indeed necessary because gasoline contains certain impurities that can generate carbon deposits in the combustion chamber over time. As these deposits accumulate, they can impair combustion efficiency, thereby affecting engine performance and increasing fuel consumption. This can also lead to poor fuel injector atomization, resulting in issues such as reduced engine power, poor acceleration, and non-compliant exhaust emissions. Maintenance and cleaning of the fuel system: 1. Regularly add fuel system cleaners, opting for high-quality products: Generally, cleaning should be performed every 10,000 to 20,000 kilometers. The purpose is to effectively remove carbon deposits, sediments, and gum from the combustion chamber, intake valves, fuel injectors, and fuel lines during vehicle operation, ensuring the fuel system remains clean. 2. Use specialized equipment for cleaning: Non-disassembly cleaning is performed by adding a cleaning solution through a supply device, commonly referred to as "hanging an IV." The advantage is that it enables non-disassembly cleaning while the engine is running, protecting the engine and effectively avoiding damage caused by disassembly. Most 4S stores adopt this method.

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What is the method for replacing car brake fluid?

Is 4S AC Pipeline Cleaning Necessary?

Is an Automatic Transmission the Same as a Dual-Clutch Transmission?

What is a Tubeless Tire?

What to Do When the SVS Warning Light Comes On?

Which is more fuel-efficient, recirculating air or fresh air mode in car air conditioning?

Is Fuel System Cleaning at 4S Stores Necessary?

Is the Civic available as an imported model?

How many points are deducted for driving straight in a bus lane?

Why are there dashed lines in tunnels?

What Causes the Engine to Stall While Driving but Restart Normally?