What are the main contents of the secondary maintenance for vehicles?

For a 2007 car, in which year does it require two inspections per year?

2007 cars require two inspections per year starting from 2022. Cars from 2007 undergo one annual inspection per year. Vehicles aged 6-15 years all require one inspection per year. Mandatory scrapping only occurs when the mileage reaches 600,000 kilometers. Vehicles over 15 years old require two inspections per year. Below is an introduction to vehicle inspection regulations: Passenger transport vehicles: Within 5 years, one inspection per year; beyond 5 years, one inspection every 6 months; Trucks and large/medium non-passenger transport vehicles: Within 10 years, one inspection per year; beyond 10 years, one inspection every 6 months; Small and micro non-passenger transport vehicles: Within 6 years, one inspection every 2 years; beyond 6 years, one inspection per year; beyond 15 years, one inspection every 6 months; Motorcycles: Within 4 years, one inspection every 2 years; beyond 4 years, one inspection per year; Tractors and other motor vehicles: One inspection per year. Operational vehicles that pass safety inspections within the specified period do not require repeated safety inspections; Vehicles beyond the scrapping age: Cannot be transferred (sold or bought), but can continue to be used. For transactions, the vehicle owner can first apply for a scrapping certificate (to deregister the vehicle's records) at the vehicle management office before proceeding with the transaction.

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How Many Types of Turbocharger Abnormal Noises Are There?

Turbocharger abnormal noises are mainly divided into two types. The first type is noise caused by wear in the support channel; the second type is noise caused by damage to the turbine blades, resulting in unstable operation of the turbocharger during operation. Either type will accelerate the damage to the turbocharger and requires timely repair at an auto repair shop. Reasons for turbocharger abnormal noises: Turbocharger damage, causing abnormal noises from metal friction. Air leakage in the intake or exhaust pipes, or cracks in the intercooler, leading to pressurized gas leakage. Rupture of the bypass valve diaphragm, causing gas leakage. Burrs or protrusions on the inner wall of the housing, generating noise when high-speed airflow passes through. Accumulation of dirt in the diffuser section of the turbocharger. Dirt accumulation on the impeller surface, obstructing airflow. Working principle of a turbocharger: A turbocharger mainly consists of a turbine and a compressor, connected by a drive shaft. The turbocharger is essentially an air compressor that increases air intake by compressing air. It uses the inertial force of exhaust gases from the engine to drive the turbine in the turbine chamber, which in turn drives the coaxial impeller. The impeller compresses the air delivered from the air filter pipe, pressurizing it before it enters the cylinder.

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Can You Paint a Car on Rainy Days?

Painting a car on rainy days is not advisable. Rainwater generally contains acidity, and acid rain can significantly damage the car's paint, leading to surface oxidation and loss of gloss. Additionally, the high humidity in the air after rain can affect the drying speed of the newly applied paint. Car Painting Process: Cleaning: First, thoroughly clean the car's surface to remove dust and debris, and determine the repair process. Oiling: Apply oil to the area to be painted. Sanding: Choose the appropriate sandpaper to sand the area to be painted, ensuring the paint is completely smoothed. Applying Putty: After sanding off all the paint, apply putty to the area. Cleaning and Masking: After applying the putty, use an air gun to blow away dust and impurities to prevent paint splatter. Painting: Spray the pre-mixed paint in 3-5 layers. Finishing: After the paint dries, sand and adjust any uneven areas to achieve a smooth and clean finish. Precautions After Car Painting: If the car has just been painted, avoid exposing the newly painted areas to water and dust. It's best not to drive the car in the rain, as the fresh paint is still delicate and can be marked by rainwater, sometimes leaving permanent marks that cannot be polished away. Parking in a garage at night is recommended.

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What is the specification of Volkswagen 50200 engine oil?

Volkswagen 50200 corresponds to the SN grade of engine oil. Introduction to engine oil: Engine oil is known as the blood of the engine. It plays roles in lubrication, cleaning, sealing, heat dissipation, buffering, and rust prevention within the engine. Without engine oil, the engine cannot function properly. Engine oil consists of base oil and additives, where additives enhance the oil's performance. Common additives include antioxidants and dispersants. Classification of engine oil: There are three types of engine oil: full synthetic oil, semi-synthetic oil, and mineral oil. The base oil of full synthetic oil is artificially synthesized, with nearly uniform molecular size and shape. Therefore, full synthetic oil offers superior lubrication performance and a longer service life. The base oil of mineral oil is refined from petroleum, with irregular molecular sizes and shapes.

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What is the reason for the shutdown of BMW N13 injection device 1?

BMW usually shuts down this type of injection device due to spark plug issues, which can be diagnosed using the swap method. The spark plugs in the N55 engine should be replaced every 60,000 kilometers. Introduction to the injection device: The water mist direct injection cooling system can significantly improve efficiency when the engine is under full load. It avoids rich fuel injection and reduces exhaust temperature. It can reduce daily driving fuel consumption by up to 8%. Lower exhaust temperatures also reduce the production of harmful substances. Fuel compatibility: Optimal power output can be achieved even with low-octane 95-grade fuel; therefore, turbocharged engines equipped with the water mist direct injection system are suitable for use worldwide.

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Where to Place the Jack When Changing Tires on the Equinox?

When changing tires on the Equinox, place the jack under the chassis near the wheel on the raised area. Operate the jack steadily and rhythmically when lifting, and lower it slowly. If using multiple jacks simultaneously, ensure synchronized operation. After using the jack, conduct a thorough inspection, check the hydraulic pressure and potential hazards, perform maintenance, and store it in an appropriate location. Function of the Jack: Jacks are primarily used in factories, mines, and transportation sectors for vehicle repairs and other lifting or supporting tasks. They are lightweight, sturdy, flexible, and reliable, allowing easy carrying and operation by a single person. Precautions for Using a Jack: The working medium for the jack is YB-N32 hydraulic oil. When the ambient temperature is below 10°C, switch to YB-N22 hydraulic oil. For temperatures above 40°C, use YB-N46 hydraulic oil.

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What are the main contents of the secondary maintenance for vehicles?

For a 2007 car, in which year does it require two inspections per year?

How Many Types of Turbocharger Abnormal Noises Are There?

Can You Paint a Car on Rainy Days?

What is the specification of Volkswagen 50200 engine oil?

What is the reason for the shutdown of BMW N13 injection device 1?

Where to Place the Jack When Changing Tires on the Equinox?

Can the temporary license plate still be used on the 16th if it expires on the 16th?

What is the fuel tank capacity of the 4008 in liters?

Can the Issuing Location of a Driver's License Be Changed?

Can Stepping Hard on the Accelerator Damage the Battery of a New Energy Vehicle?