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What are the reasons why the air conditioning in a van is not very cool?

1 Answers
VanJade
07/29/25 8:41pm
Here are the specific reasons why the air conditioning in a van is not very cool: 1. The air filter is too dirty: If maintenance has not been performed for a long time, the filter might be too dirty, affecting the cooling efficiency of the air conditioning. 2. The condenser is too dirty: A dirty condenser can also lead to poor cooling performance. The car's air conditioning condenser is located at the front of the vehicle and can be rinsed with a water hose. 3. Insufficient refrigerant: A lack of refrigerant in the air conditioning system's pipelines reduces pressure, resulting in poor cooling performance. Refill the refrigerant and check for any leaks in the air conditioning pipelines.
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What is the best position to install ETC on a vehicle?

ETC is best installed in the upper middle part of the front windshield for small vehicles such as cars and minivans; for large vehicles like trucks and buses, the lower middle part is optimal. The installation height for ETC should be no less than 1.2 meters and no more than 2.5 meters. Before installing ETC, clean the front windshield to ensure the surface is smooth, clean, and dry. Then peel off the adhesive backing of the OBU and attach it to the front windshield, pressing firmly for 2 to 3 minutes to remove any air bubbles. Unauthorized removal or movement of the OBU device, a dead battery in the OBU, or the ETC electronic tag falling off or becoming loose may cause the ETC electronic tag to fail. In such cases, you can take the ETC device to the bank where the ETC card was issued or to a highway service center for testing and reactivation.
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How Many Days in Advance Can a Driver's License Be Renewed?

Driver's license can be renewed 90 days in advance. According to Article 35 of the Regulations on the Application and Use of Motor Vehicle Driver's Licenses, motor vehicle drivers should apply for renewal at the vehicle management office of the driver's license issuing authority within 90 days before the expiration of their driver's license. When applying, they must fill out the motor vehicle driver's license application form and submit the following documents and certificates: 1. The identity proof of the motor vehicle driver; 2. The motor vehicle driver's license; 3. A medical certificate of physical condition issued by a county-level or higher medical institution or a military medical institution at the regimental level or above. According to the provisions of the Administrative Measures for Motor Vehicle Driver's Licenses of the People's Republic of China, if the renewal period is exceeded by more than one year, the vehicle management office shall cancel the motor vehicle driver's license and note it in the registration records.
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What is the equivalent of China IV standard?

China IV is the China 4 emission standard. Here is some relevant information about the China 4 emission standard: 1. This emission standard was implemented in 2010, and almost all vehicles produced after 2010 comply with the China 4 emission standard. 2. The China 4 emission standard is the fourth stage of the national motor vehicle pollutant emission standard. 3. The China 4 standard is based on the Euro 3 and Euro 4 vehicle emission standards. 4. China 1: Nationwide implementation on July 1, 2001; China 2: Nationwide implementation on July 1, 2004; China 3: Nationwide implementation on July 1, 2007; China 4: Nationwide implementation on July 1, 2010; China 5: Nationwide implementation on January 1, 2018; China 6: Implemented in some cities on July 1, 2019, with the latest nationwide implementation on July 1, 2020.
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How to Locate the Fuel Filter in Mercedes-Benz GLA?

The fuel filter is located near the fuel tank at the rear underside of the vehicle, and the model number of the fuel filter is GLA45. Below is relevant information about Mercedes-Benz fuel filters: 1. The filter element of the fuel filter mostly uses filter paper, and some fuel filters use nylon cloth or polymer materials. The main function is to filter out impurities in the gasoline. 2. The role of the fuel filter is to remove water and impurities from the gasoline. Below is relevant information about replacing the filter: 1. First, remove the vehicle key and disconnect the fuel pump fuse or the vehicle power supply to prevent the fuel pump from pumping out gasoline during disassembly. 2. Next, remove the rear seat cushion and the cover on the fuel pump, at which point you can see the fuel pump assembly. 3. The fuel pump assembly is secured by a black retaining ring. After disconnecting the wiring harness and fuel lines on the fuel pump, a special tool is required to remove this retaining ring. 4. After removing the retaining ring, the fuel pump assembly can be taken out. Replace the corresponding components of the old fuel filter with the new fuel filter assembly.
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How to Determine Brake Fluid?

Brake fluid can be seen on the exterior of the reservoir, which has markings. If the brake fluid is depleted, the brake warning light on the dashboard will illuminate. Here is relevant information about brake fluid: Methods for selecting brake fluid: 1. First, since the seals in the braking system are rubber components, prolonged immersion in brake fluid can cause chemical changes. 2. Second is the high-temperature performance, which refers to the brake fluid's ability to resist vapor lock at high temperatures. This is evaluated using the "equilibrium reflux point" metric. 3. Third is the low-temperature performance of the brake fluid, which refers to its flow characteristics at low temperatures. This is assessed by measuring the kinematic viscosity of the brake fluid at 40°C. If the viscosity is too high at this temperature, it can affect the transmission of braking force. 4. Fourth, since many components in the automotive braking system are made of metal, high-quality brake fluid should contain various anti-corrosion additives to prevent corrosion of the braking system.
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Is Tire Shine Harmful to Tires?

Tire shine is not harmful to tires. Tire shine, also known as tire dressing, helps maintain long-lasting cleanliness of tires, and qualified tire shine products are harmless to tires. The functions of tires include: 1. Supporting the entire weight of the vehicle, bearing the load of the car, and transmitting forces and moments in other directions; 2. Transmitting traction and braking torque, ensuring good adhesion between the wheels and the road surface to improve the vehicle's power performance, braking performance, and passability; 3. Preventing severe vibrations and premature damage to automotive components, adapting to the high-speed performance of the vehicle while reducing driving noise, ensuring driving safety, handling stability, comfort, and energy efficiency.
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