What are the conditions for returning a car under the new three-guarantee regulations for automobiles?

What Causes No Airflow from the Rear Air Conditioning in a Car?

Reasons for no airflow from the rear air conditioning: 1. Air leakage at the connection between the evaporator housing and the air duct: If there is air leakage at the connection between the evaporator housing and the air duct, the cold air that should be released from the rear air conditioning vents will continuously escape from the leakage point, resulting in reduced airflow from the rear vents. 2. Issues with the cabin air filter: The cabin air filter is located at the intake of the blower. All cold or warm air blown out by the car's air conditioning system must pass through the cabin air filter. However, the cabin air filter is prone to accumulating dirt. If the owner does not replace it in time, the filter can become clogged with dust, leaves, dead insects, or even rodent remains. These obstructions naturally reduce the airflow through the filter, leading to decreased airflow from the rear air conditioning vents. 3. Poor sealing of the auxiliary air duct: The rear air conditioning vents are connected to the blower via an auxiliary air duct. If the sealing of this duct deteriorates, air leakage occurs, reducing the airflow from the rear vents.

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How to Open the Rear Air Vents in the Wildlander?

The Wildlander's rear air vents have a louver that can be opened by swinging it in one direction. Here are some details about the Wildlander: 1. Introduction 1: As a new mid-size SUV from GAC Toyota, developed on the TNGA-K high-end platform, it excels in platform, powertrain, four-wheel-drive system, and configurations compared to its peers. 2. Introduction 2: It boasts four leading advantages: "a blend of rugged and elegant exterior, a supremely functional and beautiful cabin, effortless driving control, and always-responsive intelligent connectivity." The chief engineer in charge of the Wildlander and Highlander development, Saeki Sadashi, said, "The Wildlander inherits the premium vehicle genes of the Highlander," meaning the Wildlander shares some of the Highlander's premium vehicle traits.

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What is the slope range for accessible ramps?

Accessible ramp designs generally should not exceed a slope of 1:12, with a maximum vertical rise of 750mm and maximum horizontal length of 9000mm per segment. Below are the design specifications for accessible ramps: 1. Straight ramp: Minimum width of 1200mm, maximum slope of 1:12; 2. Switchback double ramp: Width of 1200mm, slope of 1:12, with 1500mm depth at both start/end points and resting platforms; 3. L-shaped ramp: Width of 1200mm, slope less than 1:12, with 1500mm depth at both start/end points and resting platforms.

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Why Replace Spark Plugs?

Reasons for replacing spark plugs: Spark plugs have a service life and can accumulate carbon deposits over prolonged use. If not replaced regularly, they may become damaged. Damaged spark plugs can directly cause issues such as electrical leakage in the vehicle's ignition system, increased fuel consumption, reduced power, and most importantly, difficulty in ignition, affecting the vehicle's normal operation. Severe spark plug erosion—indicated by pitting, damage, or melted electrodes—means the spark plug is ruined and should be replaced. How to determine if a spark plug is damaged: Remove the spark plug and inspect its condition based on the following visual characteristics. A normal spark plug's insulator skirt and electrodes appear grayish-white, grayish-yellow, or light brown. A properly functioning spark plug has a reddish-brown insulator skirt, with an electrode gap between 0.8-0.9mm and no signs of electrode wear. If the spark plug is fouled with oil or deposits but not damaged, it can be cleaned and reused. If the spark plug is severely damaged—showing pitting, black streaks, cracks, melted electrodes, etc.—identify the cause of the damage, fix the issue, and replace the spark plug. Additionally, if the spark plug appears sooty black, it indicates incorrect heat range selection, a rich fuel mixture, or oil leakage.

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Why are used Chevrolet Epicas so cheap?

With the development of the automotive industry, more and more people are buying cars, and the prices of new cars are becoming increasingly affordable, which also makes used cars more economical. Here is some information about used cars: 1. Introduction: A used car refers to a motor vehicle that has been registered with the public security traffic management authorities, has not yet reached the national scrapping standards or is still within its economic service life, and can continue to be used. 2. Considerations: When purchasing a used car, you should carefully examine the manufacturing date, actual mileage, whether the car has been involved in any major accidents, and whether the previous owner maintained the vehicle properly, among other factors.

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Should the Peugeot 408 use 92 or 95 octane gasoline?

According to the official vehicle manual recommendation, the Peugeot 408 should use 92 octane gasoline. In addition to checking the suitable gasoline grade in the vehicle manual, the Peugeot 408 can also check it on the fuel tank cap, which will also be marked. Usually, the gasoline grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should choose 92 octane gasoline, while those with a compression ratio between 10.0-11.5 should choose 95 octane gasoline. However, with the use of some new technologies, the gasoline grade cannot be determined solely by the compression ratio. A high compression ratio can also be tuned to use low-grade gasoline. This is because, in addition to the compression ratio, other factors such as ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline grade, the higher the octane number and the better the anti-knock performance. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. If the Peugeot 408 occasionally uses the wrong gasoline grade, simply switch back to the correct grade after use. However, long-term use of the wrong gasoline grade may have the following effects: For vehicles recommended to use low-grade gasoline, using high-grade gasoline by mistake will not cause damage, but the increase in octane number will change the fuel's ignition point, leading to delayed combustion in the engine. This means both the engine's power output and thermal efficiency will decrease, resulting in poorer performance. For vehicles recommended to use high-grade gasoline, using low-grade gasoline may cause engine knocking. Because the octane number is too low, the gasoline's ignition point decreases and may ignite prematurely during the compression stroke. If the fuel ignites before the spark plug fires during the compression stroke, resistance will occur during the upward stroke. This resistance will make the engine run very unstably. If it is mild knocking, it only increases noise and does not significantly damage the engine. However, if there is obvious knocking, it indicates severe engine conditions. The vibration not only affects driving stability but also causes abnormal wear on the pistons and cylinders, and in severe cases, may even lead to cylinder scoring.

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What are the conditions for returning a car under the new three-guarantee regulations for automobiles?

What Causes No Airflow from the Rear Air Conditioning in a Car?

How to Open the Rear Air Vents in the Wildlander?

What is the slope range for accessible ramps?

Why Replace Spark Plugs?

Why are used Chevrolet Epicas so cheap?

Should the Peugeot 408 use 92 or 95 octane gasoline?

Which company is WM Motor?

Which Gear for Reversing?

Will you be notified if the subject one appointment fails?

What is the normal idle speed for an automatic car?