Why is there no pressure in the low-pressure side of a car's air conditioning system?

How often do large bus drivers undergo medical examinations?

Once a year, which means submitting a health certificate during the annual review. Below is the relevant information: 1. Annual Review Regulations: According to the new annual review regulations, the annual review for drivers holding AB driving licenses has been changed from once every two years to once a year. If there are no demerit points in the previous demerit point cycle of the driving license, the review can be exempted. 2. Driving License Regulations: The annual approval period for AB driving licenses has been changed from once every two years to once a year. If there is no demerit record, the review can be exempted. According to current regulations, A and B driving licenses must be submitted once every two years with a health certificate, and drivers must undergo an examination once a year. However, according to Article 123 of the 'Regulations on the Application and Use of Motor Vehicle Driving Licenses' issued by the Ministry of Public Security, only A and B level drivers with demerit points must participate in the annual assessment, and the assessment must include a declaration of health status.

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Why does the Tiguan sunroof fail to close when tilted upwards?

Tiguan sunroof failing to close when tilted upwards is usually caused by foreign objects in the sunroof guide rails or a malfunction of the sunroof motor. If there are obstructions in the sliding rails or insufficient lubrication, excessive resistance may prevent proper closure. First, check the sliding rails: When lubrication is insufficient and resistance is too high, the sunroof's automatic anti-pinch feature will activate, manifesting as failure to close. The main maintenance for sunroofs involves lubricating the sliding rails. Lack of lubrication over time can lead to abnormal noises, poor movement, incomplete sealing, or even jamming and displacement, potentially burning out the motor. Check the electrical system: Inspect whether the electric sunroof's fuse has blown. If the fuse is intact, examine whether the sunroof switch is damaged. Press the switch to check if power is being supplied. If power is present, then verify whether the sunroof's drive motor is functioning by listening for any operational sounds. Additionally, failure to close tightly may be due to obstructions, deformations, rust, or poor lubrication in the sunroof's sliding channels.

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How Much Water in the Passenger Compartment is Considered Severe?

Water reaching the vehicle's floor area is considered severe. Once water enters the interior of a motor vehicle, it can cause various issues. The wiring harnesses of motor vehicles are all fixed on the floor, and water ingress can lead to dampness of the floor, affecting the functionality of the wiring harnesses. In severe cases, it may even cause rotting. More extended information is as follows:1. Precautions: When repairing a water-damaged motor vehicle, it is essential to clearly identify the areas that need repair and have a thorough understanding before driving the vehicle. Although a water-damaged vehicle can be driven normally after repairs, there are still many uncertain factors that may prevent the vehicle from functioning properly and cause malfunctions during operation.2. Others: Water-damaged motor vehicles do not affect the transfer of ownership. All necessary procedures can be completed at the vehicle management office. Water-damaged motor vehicles only have issues with the quality of the car and do not affect the vehicle's documentation. There is no problem with completing the transfer of ownership procedures. Vehicles that cannot be transferred should not be purchased.

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What to Do About Loud Exhaust Pipe Noise?

Loud exhaust pipe noise is caused by the aging of the gasket at the connection between the exhaust pipe and the engine. Use a wrench to remove the screws at the connection between the exhaust pipe and the engine. After loosening the screws, separate the exhaust pipe from the engine and place a new gasket on the exhaust pipe. Tighten the screws with a wrench, and the exhaust pipe noise will be reduced. Below are the specific reasons for loud exhaust pipe noise: 1. Blockage: If the exhaust pipe emits strange noises, it indicates that there must be debris inside, such as small animals like mice or kittens. This is very bad for the car engine because the gases expelled by the engine must pass through the exhaust pipe. If the exhaust pipe is blocked, the gases will flow back into the engine, causing high-temperature damage. 2. Muffler rust: The exhaust pipe is located between the muffler and the engine. If the exhaust pipe gets water inside or rusts, it can also cause the muffler to rust. This will increase the car's noise, making passengers feel that the car's sound is particularly loud, resulting in a very poor experience.

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Is the front windshield film applied on the inside or outside of the car?

Front windshield films are always applied on the inside. If applied on the outside, exposure to wind and rain would reduce the lifespan by at least two-thirds. Additionally, if applied externally, shattered glass fragments from impacts could injure people, failing to serve the purpose of explosion-proof film. Below are specific details about car window films: 1. Introduction: Car window films involve applying a thin layer of material (also called solar film or heat-insulating film) to the front and rear windshields, side windows, and sunroof of a vehicle. 2. Functions: They primarily block ultraviolet rays, reduce heat transmission, prevent injuries from glass shards, and minimize glare. The one-way visibility feature also helps protect personal privacy. Moreover, these films can shield interior items and occupants from UV damage, reflect sunlight to lower cabin temperature, reduce air conditioning usage, thereby improving fuel efficiency and saving costs.

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Are Plug-in Hybrids Fuel-Efficient on Long Trips?

Plug-in hybrids are not fuel-efficient on long trips. Here is some information about long-distance hybrid vehicles: 1. Reasons for not being fuel-efficient: Whether it's a dual-engine hybrid or a DM plug-in hybrid, they only save fuel compared to traditional vehicles during startup, or in situations like highway roadwork or traffic jams where speeds are low. If the road conditions are excellent and you drive at a constant speed to your destination, hybrid vehicles are not necessarily more fuel-efficient than gasoline-powered cars. It depends more on the vehicle's drag coefficient, engine, weight, and driving habits. 2. Hybrid vehicle fuel consumption: On long trips, the fuel consumption of new energy hybrid vehicles is similar to that of gasoline-powered cars, typically around 5-6 liters per 100 kilometers, with higher consumption at faster speeds. However, for most people, the majority of their driving time is spent on short urban trips, with single trips not exceeding 50-60 kilometers. In these cases, plug-in hybrids have a significant advantage because they don't use any fuel at all, relying solely on electricity.

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Why is there no pressure in the low-pressure side of a car's air conditioning system?

How often do large bus drivers undergo medical examinations?

Why does the Tiguan sunroof fail to close when tilted upwards?

How Much Water in the Passenger Compartment is Considered Severe?

What to Do About Loud Exhaust Pipe Noise?

Is the front windshield film applied on the inside or outside of the car?

Are Plug-in Hybrids Fuel-Efficient on Long Trips?

Why Can't the Tiguan's Hood Stay Closed After Automatically Popping Open?

How effective is the roof heat insulation of the XPeng P7?

What is the fuel consumption of the CFMOTO 650 motorcycle?

Can a mortgaged car with a settlement certificate be purchased?