Why does the imported Audi A4 Avant depreciate?

How often should fuel system cleaner be added?

Fuel system cleaner should be added every 5,000 kilometers. More information about fuel system cleaner is as follows: 1. Introduction: Fuel system cleaner is a general term for cleaning agents that remove carbon deposits, gum, and sludge from fuel injectors, intake valves, cylinder walls, piston tops, and intake pipes. Using such products can significantly reduce harmful emissions from vehicle exhaust, help vehicles pass exhaust tests, restore engine power, and improve engine efficiency and fuel economy. 2. Product benefits: Removes gum and dirt from the fuel system; Saves fuel and reduces exhaust emissions; Protects engine components and effectively prevents corrosion and rust.

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How to Determine the 30cm Distance Between the Car Body and the Roadside?

Methods to determine the 30cm distance between the car body and the roadside are as follows: 1. For sections with curbs: Observe the distance between the right side of the car body and the curb, and make adjustments. When the position of the right front door handle just covers the curb or is about to "touch" it, quickly straighten the car body. At this point, the distance between the car body and the curb is approximately 30cm. 2. Observe the sideline: Drive along the right sideline from the middle-right position of the engine hood. At this time, the right side of the tire is about 30cm away from the right sideline. 3. Observe the hood: Align the right 15cm of the hood center with the right sideline to ensure a 30cm distance, provided that the car body is already roughly parallel to the roadside. From the driver's position, align the position one fist-width to the right of the hood center with the sideline, then straighten the wheels and stop the car.

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What do LH and RH mean in cars?

In cars, LH and RH represent left and right respectively. Here are more automotive-related terms: 1. 5V: The 'V' stands for the first letter of the English word 'valve'. Traditional car engine cylinders commonly use a 4-valve structure, i.e., 2 intake valves and 2 exhaust valves, ensuring sufficient and effective intake and exhaust, which is beneficial for increasing engine speed to achieve maximum power. The 5-valve technology has been widely adopted by foreign automotive companies, and the recently launched 'Bora' in China already employs this technology, featuring 3 intake valves and 2 exhaust valves. 2. ABS: This is the abbreviation for 'anti-lock-brake-system', translated in Chinese as 'anti-lock braking system'. It is a safety brake control system with advantages such as anti-skid and anti-lock. Cars without ABS may lock the wheels when the driver slams the brakes in an emergency, leading to dangerous situations like skidding, deviation, or loss of steering control due to the vehicle's momentum. 3. GPS: Short for Global Positioning System, its main functions include anti-theft, anti-hijacking, and navigation.

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How to Deal with Water Damage in a Car's Computer?

Here are the steps to handle water damage in a car's computer: 1. Remove the battery: Quickly disconnect the negative terminal of the battery to prevent short circuits in various electrical components due to water exposure; 2. Inspect the engine: Immediately check the engine, starting with whether water has entered the engine cylinders, as this can bend the connecting rods and damage the engine; 3. Check for water in the engine oil: Water in the oil can cause it to deteriorate, losing its lubricating properties and leading to excessive engine wear; 4. Remove the ECU: If the car's Electronic Control Unit (ECU) gets wet or damp, it must be removed as soon as possible. Wipe off any surface moisture, seal it in a plastic bag, and use a vacuum machine to extract all internal moisture.

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Is it normal for a car to shake when starting after releasing the brake?

It is not normal for a car to shake when starting after releasing the brake. The specific causes and solutions are as follows: 1. Engine carbon deposits: Severe carbon buildup is the most common cause of car shaking, often due to a dirty throttle body or excessive carbon deposits in the fuel injectors. When there is too much carbon inside the engine, the gasoline sprayed by the fuel injector during a cold start will be largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture and making it difficult to start. In this situation, the car will only start easily once the carbon deposits have absorbed enough gasoline to become saturated. After starting, the gasoline adsorbed on the carbon deposits will be drawn into the combustion chamber by the engine's vacuum, making the air-fuel mixture too rich. This fluctuation between lean and rich mixtures causes the engine to idle roughly after a cold start. Additionally, the lower the temperature, the more fuel is required for a cold start, and the presence of carbon deposits will further affect the smoothness of the cold start. The solution is to clean the fuel system and check if the idle control valve has carbon deposits that need cleaning. 2. Ignition system issues: Check the condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance in the ignition system or weak sparking from the spark plugs can also lead to this type of problem. The solution is to check if the spark plugs have excessive carbon buildup and replace them if necessary.

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What is the gauge on the left side of the car dashboard?

Generally, the left gauge on a car dashboard is the tachometer. The positions of the gauges vary among different cars, but the two main gauges on a car dashboard are the tachometer and the speedometer/odometer. Tachometer: Typically displayed symmetrically with the odometer, it serves as a window for understanding the engine's working condition. The indicated number multiplied by 1000 or 100 represents the engine's revolutions per minute (RPM). The tachometer is usually divided into several zones marked in white, red, or green, representing safe RPM, dangerous RPM, or the most economical RPM range, respectively. Drivers only need to ensure the RPM does not enter the red danger zone. Of course, it's important to match the RPM with the current gear to avoid damaging the vehicle. Speedometer/Odometer: This gauge consists of two parts: the 'speedometer,' which indicates the vehicle's speed, and the 'odometer,' which records the distance traveled. The former informs the driver of the vehicle's speed, aiding in speed control and ensuring driving safety; the latter displays the vehicle's mileage, reminding the driver of maintenance and service needs. Traditional mechanical speedometers were common in the past, but they are increasingly being replaced by electronic ones. The odometer also follows this trend, though its readings are preserved even when the vehicle is powered off. In addition to these, the dashboard may also display a coolant temperature gauge and a fuel gauge: Coolant Temperature Gauge: It actually shows the temperature of the antifreeze, typically ranging between 0-130 degrees. After starting the car, the coolant temperature rises and stabilizes at the middle range, indicating the vehicle is ready to move. Fuel Gauge: This is a crucial indicator for drivers to determine when to refuel. When the needle points to 'E,' it means the vehicle needs fuel, and when it points to 'F,' the tank is full.

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Why does the imported Audi A4 Avant depreciate?

How often should fuel system cleaner be added?

How to Determine the 30cm Distance Between the Car Body and the Roadside?

What do LH and RH mean in cars?

How to Deal with Water Damage in a Car's Computer?

Is it normal for a car to shake when starting after releasing the brake?

What is the gauge on the left side of the car dashboard?

Are all commercial vehicles seven-seaters?

What is the working principle of a brake relay valve?

What are the reasons for a car not starting due to fuel supply issues?

What to Do When the At-Fault Driver Doesn't Answer Calls?