What is the working principle of automotive disc brakes?

What is the name of the shield in front of the wheel?

The mudguard is the shield placed in front of the wheel. The mudguard is a plate-like structure installed behind the outer frame of the wheel, usually made of high-quality rubber material, and sometimes engineering plastic is also used. The functions and advantages of car mudguards are as follows: Effectively prevent mud and water splashed up by the vehicle during driving from staining the car, reducing the frequency of car washes, and preventing mud and water from splashing onto pedestrians. Protect the mechanical structure of the car. Rainwater erosion can cause metal parts to rust, and mudguards can block rainwater from entering the interior, preventing parts from rusting. When the car is driving, small stones on the road may be splashed, scratching the car paint. Mudguards can effectively block such splashes and protect the car body. Disadvantages of car mudguards: Most mudguards are black, and their installation may affect the overall aesthetics of the vehicle. Installing mudguards will to some extent affect the vehicle's passability, especially for models with already low chassis (for example, when going up or down steps, the mudguard may get scraped). When the car is driving at high speed, it is subjected to significant air resistance. Installing mudguards can disrupt the car's underbody airflow design, obstruct the flow of air under the car, increase underbody turbulence, slow down the air flow speed, raise the car's drag coefficient, increase wind noise, and lead to higher fuel consumption.

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Must Spark Plugs Be Replaced If They Leak Electricity?

Spark plug breakdown, major head leakage, spark plug air leakage, and spark plug oil leakage are common phenomena when replacing spark plugs. If a spark plug is damaged by electrical leakage, both the spark plug and the ignition coil's ignition wire need to be replaced. The spark plug is a crucial component of a gasoline engine's ignition system. It introduces high-voltage electricity into the combustion chamber, causing it to jump across the electrode gap to create a spark, thereby igniting the combustible air-fuel mixture in the cylinder. Spark plugs are installed on the side or top of the engine. Early spark plugs were connected to the distributor via cylinder wires, but over the past decade, most car engines have been modified to connect the ignition coil directly to the spark plug. Steps for replacing spark plugs: Open the engine hood, lift the engine's plastic cover, and remove the high-voltage distributor wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for external debris like leaves or dust and ensure everything is cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the high-voltage distributor wires according to the firing order, and secure the cover.

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Where is the Ambient Air Temperature Sensor Located?

The ambient air temperature sensor is installed on the cylinder head of the engine. The working principle of the ambient air temperature sensor is to convert information such as light, electricity, temperature, pressure, and time during vehicle operation into electrical signals, which are then input into the vehicle's computer system. The computer uses pre-stored programs to perform calculations and analysis to determine the operating status of the vehicle. Ambient air temperature sensors are divided into: 1. Vane-type air flow sensor; 2. Karman vortex-type air flow sensor; 3. Hot-wire air flow sensor; 4. Hot-wire air flow sensor; 5. Hot-film air flow sensor.

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How is the compulsory traffic insurance calculated for a 4.0L engine?

New car compulsory traffic insurance is not related to engine displacement. Below is relevant information about car engine displacement: 1. Displacement and cars: The volume of space that the piston moves from top dead center to bottom dead center is called cylinder displacement; if the engine has multiple cylinders, the sum of all cylinder working volumes is called engine displacement. It is usually expressed in liters (L). Engine displacement is one of the most important structural parameters, which represents the size of the engine better than bore diameter and the number of cylinders. Many indicators of the engine are closely related to displacement. 2. Displacement classification: In China, the classification of car levels is determined by the size of the displacement. The displacement of a micro car is less than or equal to 1.0L; the displacement of an ordinary car ranges from 1.0L to 1.6L; the displacement of an intermediate car ranges from 1.6L to 2.5L; the displacement of a mid-to-high-end car ranges from 2.5L to 4.0L; the displacement of a high-end car is greater than 4.0L.

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Can the ETC still be used if the car is changed but the license plate is not?

If the car is changed but the license plate is not, the ETC cannot continue to be used. If you want to continue using it, you need to go to the ETC service point to re-enter the vehicle information and owner information to reactivate it. Once the ETC system is removed, it becomes invalid and cannot be used. There is an anti-tamper button on the back of the ETC, which is designed to prevent one ETC system from being used alternately between multiple vehicles. ETC is the abbreviation for Electronic Toll Collection system, which can be used on highways and at gas stations. There is a solar panel on the back of the ETC system, and when installing it, you must ensure that the solar panel can be exposed to sunlight; otherwise, the ETC system may run out of power and stop working.

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Why is the water temperature high in the BORGWARD BX7?

The reasons for the high water temperature in the BORGWARD BX7: 1. Insufficient coolant; 2. Malfunction of the cooling fan; 3. Faulty circulation water pump. The BORGWARD BX7 is a mid-size SUV under the BORGWARD brand, with exterior dimensions of 4715mm in length, 1911mm in width, and 1690mm in height, and a wheelbase of 2760mm. The BORGWARD BX7 is equipped with a 2.0T inline four-cylinder turbocharged engine, delivering a maximum power of 165 kW at 5500 rpm and a maximum torque of 300 Nm between 1500 and 4500 rpm.

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What is the working principle of automotive disc brakes?

What is the name of the shield in front of the wheel?

Must Spark Plugs Be Replaced If They Leak Electricity?

Where is the Ambient Air Temperature Sensor Located?

How is the compulsory traffic insurance calculated for a 4.0L engine?

Can the ETC still be used if the car is changed but the license plate is not?

Why is the water temperature high in the BORGWARD BX7?

What is the appropriate tire pressure for the Benben?

What Causes Sudden Loss of Power and Severe Shaking When Accelerating?

Where is the fuel tank located on a Porsche 911?

What are the symptoms of a faulty knock sensor?