How many class hours are required for Subject 2 before taking the exam?

What to Do If Your Car Is Scratched by Someone and You Can't Find the Culprit?

In such a special situation, you should call the police immediately and let the traffic police handle the accident judgment. Do not impulsively chase the other vehicle. At the same time, you can retrieve the footage from your dashcam to prove the other party's illegal behavior. Then, call your insurance company and have them send a specialist to assess the damage and process the claim. The specific steps are as follows: 1. Call the police: Report the incident immediately. If the scratch occurs on a main road with no injuries, take photos of the collision area and the entire car for evidence, then move your car to a place where it does not obstruct traffic and wait for further instructions. 2. Accident determination: After the traffic police arrive, they will issue an accident liability determination report. 3. Report to insurance: Wait for the insurance company to send a specialist to assess the damage. 4. Wait for results: You can then wait for the damage assessment results and proceed to repair your car.

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What are the effects of bad car bearings?

Effects of bad car bearings: 1. Abnormal friction between the brake drum and brake pads significantly increases driving resistance, reduces rolling smoothness, and leads to decreased power; 2. Affects comfort; 3. Causes the vehicle to pull to one side and increases tire noise; 4. Leads to suspension damage; 5. Damages the wheel mechanism, potentially causing the wheel hub to detach; 6. Results in steering system failure. The function of car bearings is to bear weight and provide precise guidance for the rotation of the wheel hub. Maintenance methods for car bearings: 1. Remove the wheel hub, scrape off the old grease from the bearings, axle neck, and wheel hub cavity, clean the wheel hub bearings and axle neck with a cleaning agent, wipe them dry with a cloth, and clean the inner cavity of the wheel hub; 2. Apply grease to the inner cavity of the bearings.

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What are the perfect repair methods for rusted and rotten side skirts?

For perfect repair of rusted and rotten side skirts, use touch-up paint or go to a 4S shop for polishing and welding depending on the situation. Not serious: If the rust is not very serious, it can be solved with touch-up paint. Use ultra-fine water sandpaper with water to polish in the same direction until the rust is removed. After cleaning, apply primer, wait for it to dry, then sand it with water sandpaper, and finally apply the small can of original paint that came with the car. This counts as rust prevention treatment. Serious: If the rust is severe, it is necessary to go to a 4S shop for repolishing and welding. During the sheet metal repair process of the side skirt, high-temperature welding is required, which will damage the anti-corrosion layer of the original car sheet metal. After sheet metal repair, rust-proof wax can be used for internal rust prevention.

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How to Reset the Sunroof of Volvo XC60?

Here are the specific methods to reset the sunroof of Volvo XC60: 1. Component Aging: Press the sunroof switch button and observe the movement track of the sunroof. Check if there is any obvious up-and-down fluctuation. If so, it is likely due to component aging, and the only solution is to replace the components. 2. Presence of Debris Particles: After prolonged use, it is inevitable for some debris particles to accumulate on the sliding track. When the sunroof moves along the track, it rubs against these particles, causing abnormal noises. Open the lubricant and apply it to both sides of the sunroof's sliding track. 3. Loose Screws: Loose screws can lead to abnormal noises from the roof and the sunroof, and even pose a risk of the sunroof falling off. Simply tighten the sunroof screws to resolve this issue.

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What does maximum engine torque mean?

Engine maximum torque is related to the design of the engine's intake system, fuel supply system, and ignition system. At a certain speed, when these systems' performance is optimally matched, maximum torque can be achieved, usually within the engine's medium to low-speed range. As speed increases, torque tends to decrease. Below is a related introduction: 1. Definition of automobile torque: It refers to the moment output from the crankshaft end of the engine; under fixed power conditions, it has an inverse relationship with engine speed—the faster the speed, the smaller the torque, and vice versa, reflecting the vehicle's load capacity within a certain range. Like power, automobile torque is one of the main indicators of an engine, reflected in vehicle performance, including acceleration, climbing ability, and suspension. 2. Is higher automobile torque always better? Generally speaking, higher torque is better. For family cars, higher torque means better acceleration; for off-road vehicles, higher torque allows for steeper climbing; for trucks, higher torque enables greater load capacity.

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What is the fuel consumption of the Mazda CX4?

Mazda CX4 has a fuel consumption of 7.9 liters per 100 kilometers. Here are specific methods to reduce fuel consumption: 1. Lightly press the accelerator: When starting at low speeds, the car consumes the most fuel. Therefore, gently pressing the accelerator during startup to prevent excessively high RPM can effectively reduce fuel consumption. 2. Avoid high RPM: Try to avoid unnecessary high RPM as fluctuating engine speeds can significantly increase fuel consumption. 3. Regular maintenance: Change the engine oil and remove carbon deposits. 4. Avoid emergency braking: Anticipating road conditions in advance not only improves driving safety but also saves fuel. For example, gradually slowing down before traffic lights and utilizing inertia to glide.

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How many class hours are required for Subject 2 before taking the exam?

What to Do If Your Car Is Scratched by Someone and You Can't Find the Culprit?

What are the effects of bad car bearings?

What are the perfect repair methods for rusted and rotten side skirts?

How to Reset the Sunroof of Volvo XC60?

What does maximum engine torque mean?

What is the fuel consumption of the Mazda CX4?

What to Do If You Always Mistake the Accelerator for the Brake?

What does SN grade engine oil mean?

What is the maintenance interval for the Mercedes-Benz GLC?

Why does a car make a loud bang when hitting a pothole without slowing down?