How to Check the Model Number of a Catalytic Converter?

What is Automotive After-Sales Service?

Automotive product after-sales service generally refers to all technical service work provided by sales departments to customers as well as the service management work of the sales departments themselves. Specific contents of after-sales service: The technical services of after-sales service may be conducted before sales (such as vehicle refurbishment and testing), during sales (such as vehicle detailing, installation and inspection of accessories as per customer requirements, customer training, distribution of technical materials, etc.), but mostly involve a series of technical work after the vehicle is sold, including quality warranty, maintenance, technical consultation, and spare parts supply. General summary: In general, automotive services include pre-sales, in-sales, and after-sales services. Taking passenger cars as an example, pre-sales service refers to services before the product leaves the factory, such as product development, design, quality control, and market research; in-sales service refers to services that facilitate sales, including sales consultation, advertising, loans, and insurance information; after-sales service refers to services related to the use of the car after it is sold, including maintenance, interior decoration (or modification), financial services, accident insurance, claim consultation, used car transfer, scrap car recycling, accident rescue, market research, and information feedback.

10

3

Share

Can the car air conditioner cool without the engine running?

The air conditioner will not cool without the engine running. The reasons for not cooling and the functions of the car air conditioner are introduced as follows: Reasons for not cooling: When the engine is not running, the air conditioner switch can be turned on, but the air conditioner does not work, only blowing air. This is because the air conditioner requires significant power consumption, which the car battery cannot sustain. Therefore, if the engine is not running, the air conditioner automatically enters protection mode and cannot operate. Functions of the car air conditioner: It refers to the air conditioning device installed in the car, which can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety. Generally, it includes a cooling device, heating device, and ventilation device. This combined system makes full use of the limited space inside the car, featuring a simple structure and easy operation, making it a popular modern car air conditioning system internationally.

9

2

Share

What Causes the Unpleasant Odor from Car Air Conditioning?

There are several reasons for unpleasant odors in car air conditioning, including dirt inside the evaporator and uncleaned air filters. Here are the specific explanations: Dirt inside the evaporator: The evaporator is a key component of the air conditioning system. During the cooling process, it comes into contact with external air. In large cities or industrial areas where the air is more polluted, dirt and dust can be drawn into the air conditioning circulation system, leading to unpleasant odors. Uncleaned air filter: The air filter's main function is to filter the air. Over time, dirt can accumulate on it. If it is not cleaned or replaced for a long time, it can easily produce odors.

13

2

Share

How Much Does a Car Battery Weigh?

For small cars, the battery generally weighs around 15kg, while for larger vehicles, it is approximately 40kg. Currently, there are two types of car batteries: traditional flooded batteries (which require adding electrolyte after purchase) and maintenance-free absorbed glass mat (AGM) batteries (ready to use upon purchase). These two types differ slightly in weight. Here are the detailed weights of maintenance-free AGM batteries for reference: 45Ah (Ah, ampere-hour, the unit of battery capacity) 12.5Kg (the first type weighs about 8.5Kg before adding electrolyte); 55Ah 15.0Kg; 60Ah 17.5Kg (the first type weighs about 12Kg before adding electrolyte). Car batteries are typically replaced every two years, but the exact timing depends on the battery type, actual usage, and maintenance. Generally, standard batteries last about 2-3 years, while most modern cars use maintenance-free batteries, which are more durable and have a longer lifespan of around 3-4 years. Below is additional information about car batteries: During use, the electrolyte in car batteries naturally evaporates and depletes. If the electrolyte level is insufficient, the battery may lose power, requiring a refill. The battery's lifespan is closely related to maintenance and driving habits. Frequently using in-car electrical devices (such as the radio or dome light) after turning off the engine can harm the battery and shorten its lifespan. Using electronics while the engine is off continuously drains the battery, potentially leading to a dead battery, which can affect the car's ability to start. Therefore, minimize the use of high-power electronic devices when the engine is off to avoid excessive battery drain. If the car is parked for an extended period, it is advisable to disconnect the battery's negative terminal to prevent power loss. Ideally, start the car once a week to allow the battery to recharge via the alternator while the engine idles. Regularly clean the battery to remove dust, grease, and white acid corrosion residue, as this helps extend its lifespan.

6

1

Share

Why is the high-pressure pipe of the car air conditioning cold while the low-pressure pipe is not cold?

When the high-pressure pipe of the car air conditioning is cold while the low-pressure pipe is not, it indicates that the compressor is damaged. Under normal working conditions, the low-pressure pipe should be cold, and the high-pressure pipe should be hot to the touch. If the high-pressure pipe is cold, it means the compressor is faulty and needs to be replaced. The air conditioning working process: Compression process: The compressor sucks in the low-temperature, low-pressure refrigerant gas from the evaporator outlet and compresses it into high-temperature, high-pressure gas, which is then discharged from the compressor. Heat dissipation process: The high-temperature, high-pressure superheated refrigerant gas enters the condenser. Due to the decrease in pressure and temperature, the refrigerant gas condenses into a liquid, releasing a large amount of heat. Throttling process: The higher-temperature and higher-pressure refrigerant liquid passes through the expansion device, where its volume increases, and the pressure and temperature drop sharply, exiting the expansion device in a mist form (fine liquid droplets).

19

4

Share

What is the average range of a car in kilometers?

Generally, the fuel range of civilian vehicles when fully refueled exceeds 500 kilometers. Typically, small cars have a fuel tank capacity of 35-45 liters, while medium-sized cars have a fuel tank capacity of around 55-75 liters. After a full refuel, most vehicles can travel approximately 500 kilometers. The size of the fuel tank correlates with the car's displacement and fuel consumption—larger fuel tanks for higher consumption and smaller tanks for lower consumption. Factors affecting the range include: Battery technology impacts range: The increase in electric vehicle range is the result of multiple factors. To enhance the range, the key lies in battery technology, which requires continuous improvement in battery performance. However, considerations must also be given to factors such as vehicle size and price. Other factors affecting range: High and low-temperature battery technology, optimization of battery BMS technology, upgrades to the vehicle's energy recovery system, lightweight body construction, and energy-saving technologies for hardware equipment. Additionally, external driving conditions, air resistance coefficient, mechanical transmission efficiency, overall vehicle weight, and passenger count are among the factors that influence the actual range of electric vehicles.

13

3

Share

How to Check the Model Number of a Catalytic Converter?

What is Automotive After-Sales Service?

Can the car air conditioner cool without the engine running?

What Causes the Unpleasant Odor from Car Air Conditioning?

How Much Does a Car Battery Weigh?

Why is the high-pressure pipe of the car air conditioning cold while the low-pressure pipe is not cold?

What is the average range of a car in kilometers?

Can Car Electronic Lock Keys Be Duplicated?

At what SOH level should a car battery be replaced?

Should the car battery be replaced at a 4S shop or outside?

Does a Car Battery with Low Charge Affect Fuel Consumption?