What is the name of Subject 4 exam?

Method to Reset the Maintenance Light on a Land Rover Evoque

The method to reset the maintenance light on a Land Rover Evoque is as follows: 1. Press the one-touch ignition button. 2. Use the function keys on the right side of the steering wheel, which include four directional keys and one OK key, to locate the vehicle information option on the dashboard. 3. Find the 'Latest Alert' option and press OK to enter. 4. Simultaneously press and hold the 'Down' key on the right side of the steering wheel and the 'i' button at the end of the turn signal stalk, maintaining this action for about 10 seconds to complete the reset. Finally, restart the vehicle to check if the reset was successful. If not, repeat the procedure.

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How to Maintain a Pure Electric Vehicle?

Introduction to the maintenance of pure electric vehicles: 1. Maintenance of the exterior and motor of a pure electric vehicle: The first step in maintaining an electric vehicle is an exterior inspection, which includes checking the steering wheel, seat belts, various switches inside the car, and whether the combination instrument is functioning normally. It also involves verifying the functionality of the lights and horn, the aging degree of components like the wipers, the inflation condition of the tires, and whether there is any damage or wear. Electric vehicles require checking the antifreeze, brake fluid, and windshield washer fluid. Electric vehicles also have antifreeze, but unlike traditional vehicles, the antifreeze is used to cool the motor and needs to be replaced according to the manufacturer's specified time, generally every 2 years or 40,000 kilometers. The type of antifreeze is exactly the same as that of traditional cars. Gear oil (transmission oil) is a fluid that needs to be replaced more frequently in electric vehicles, but the replacement cycle varies by manufacturer. 2. Maintenance of the battery pack of a pure electric vehicle: The battery pack is the most critical part of the chassis inspection. The battery pack is usually composed of about a hundred independent batteries, and in case of a malfunction, it is generally repaired professionally by the manufacturer. During vehicle maintenance, the 4S shop will visually inspect the battery for damage and connect to a computer to check for any fault records in the battery. In addition, electric vehicles are equipped with an onboard terminal system, which is used to monitor the battery status of the vehicle and upload it to the manufacturer's server and government server. In case of abnormal battery status and potential danger, the owner will be notified. Chassis inspection includes issues such as chassis damage, deformation, loose screws, and fluid leakage.

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What does excessive wear of brake pads mean?

Excessive wear of brake pads refers to a brake pad warning, usually indicating that the brake pads have reached their wear limit and need to be replaced promptly. Failure to do so may result in brake failure and damage to the brake disc. There is also a less common cause that can trigger an excessive wear warning for brake pads: when the brake pad wear sensor is damaged and an open circuit occurs, it may cause a false alarm, and the vehicle's dashboard will display an excessive wear warning for the brake pads. Below is relevant information: 1. Automobile brake pads: Automobile brake pads refer to the friction materials fixed on the rotating brake drum or brake disc of the wheel. The friction lining and friction blocks bear external pressure to generate friction, thereby achieving vehicle deceleration. Automobile brake pads are generally composed of steel plates, adhesive insulation layers, and friction blocks. The steel plates are coated to prevent rust, and the coating process is monitored using an SMT-4 furnace temperature tracker to ensure the temperature distribution during the coating process meets quality standards. 2. How brakes work: The working principle of brakes mainly relies on the friction between the brake pads and the brake disc (drum), as well as between the tires and the ground, to convert the kinetic energy of the moving vehicle into heat energy through friction, thereby stopping the vehicle. A good and efficient braking system must provide stable, sufficient, and controllable braking force, and have excellent hydraulic transmission and heat dissipation capabilities to ensure that the force applied by the driver on the brake pedal is effectively transmitted to the master cylinder and sub-cylinders, while avoiding hydraulic failure and brake fade caused by excessive heat.

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What are the symptoms of a broken engine mount?

Connecting the engine to the frame or chassis, there is a rubber block or ring in the bracket, which is the engine mount. When it is broken, symptoms such as steering wheel vibration at idle and severe body shaking will occur. More information about engine mounts is as follows: 1. The engine mount is a rubber buffer block that connects the engine to the frame, serving to reduce the vibration transmitted from the engine to the cabin. 2. Damage to the engine mount mainly affects the engine's vibration. High-speed engine noise may be related to gradual wear and aging of the engine, and the connection with using a broken engine mount for 1 or 2 years is not particularly significant.

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What does China 6 mean?

China 6 refers to the requirement that a vehicle's emission standards meet the specifications of the sixth phase of the national emission standards. The China 6 emission standards were gradually implemented starting from the end of 2019. The national emission standards are categorized as: China 1, China 2, China 3, China 4, China 5, and China 6. The higher the number, the more environmentally friendly the vehicle's exhaust emissions are. The latest national standard introduced is the sixth phase emission standard, which is more stringent, with lower limits on various harmful gases. Vehicle emission standards regulate the levels of harmful gases emitted from vehicle exhaust, such as carbon monoxide, hydrocarbons, and nitrogen oxides. The purpose of setting these standards is to curb the production of these harmful gases, encouraging automobile manufacturers to improve emission standards and reduce the generation of harmful gases.

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The Difference Between Coating Agent and Waxing

The differences between coating agent and waxing are as follows: 1. Different protection duration: Generally, waxing provides protection for about 1 month, while coating offers much longer protection. 2. Different ingredients: The main component of wax is natural or synthetic wax, whereas the primary ingredient of coating agent is silicon fluoride. 3. Different effects: Applying coating agent does not harm the car; it can prevent paint aging and oxidation. Frequent waxing may affect the car paint. 4. Different prices: Waxing is cheaper than coating. 5. Different processes: Car wax is applied directly to the paint after washing without any treatment, whereas coating requires polishing before application.

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What is the name of Subject 4 exam?

Method to Reset the Maintenance Light on a Land Rover Evoque

How to Maintain a Pure Electric Vehicle?

What does excessive wear of brake pads mean?

What are the symptoms of a broken engine mount?

What does China 6 mean?

The Difference Between Coating Agent and Waxing

What is an Oil Filter?

How to Use BMW Screen Sharing?

What are the benefits of torsion beam suspension?

What does China 6b mean?