What are the three categories of automobile repair?

1 Answers
PaisleyLee
07/29/25 9:01pm
According to the national standard "Conditions for Opening Automobile Maintenance Enterprises", automobile maintenance enterprises are divided into three categories: Class I automobile maintenance enterprises, Class II automobile maintenance enterprises, and Class III automobile maintenance businesses. Below is their relevant introduction. Class I automobile maintenance enterprises: Engaged in automobile overhaul and assembly repair, they can also perform automobile maintenance, minor repairs, and specialized automobile repairs. Class II automobile maintenance enterprises: Engaged in first-level and second-level automobile maintenance and minor repairs. Class III specialized maintenance businesses: Specialized in projects such as body repair, painting, tarpaulin, seat cushion and interior decoration repair, electrical and instrument repair, battery repair, radiator and fuel tank repair, tire repair, installation of automobile door and window glass, air conditioner and heater repair, fuel injection pump, injector, and carburetor repair, crankshaft grinding, cylinder boring and grinding, body cleaning and maintenance, and other specialized repairs or maintenance.
Was this review help?
6
5
Share
More Forum Discussions

Where to Find the Marked Tire Pressure Value on the Tire?

Tire pressure values represent the air pressure in the four tires, with the most commonly used unit being bar. Below is a detailed introduction to tire pressure monitoring: Direct Tire Pressure Monitoring: Direct tire pressure monitoring systems use pressure sensors installed in each tire to directly measure the tire pressure. The pressure information is transmitted wirelessly from inside the tire to a central receiver module, which then displays the pressure data for each tire. Indirect Tire Pressure Monitoring: When the pressure in a tire decreases, the vehicle's weight causes the rolling radius of that tire to become smaller, resulting in a faster rotation speed compared to the other wheels. By comparing the differences in rotation speeds between the tires, the system monitors the tire pressure.
3
4
Share

Is the Mercedes-Benz E300L Imported?

The Mercedes-Benz E300L is not imported; it is domestically produced. Taking the 2021 Mercedes-Benz E300L as an example, it is a mid-to-large-sized sedan with body dimensions of 5078mm in length, 1860mm in width, and 1484mm in height, with a wheelbase of 3079mm and a fuel tank capacity of 66 liters. The 2021 Mercedes-Benz E300L features multi-link independent suspension both at the front and rear, with a rear-wheel-drive layout. It is powered by a 2.0T turbocharged engine, delivering a maximum horsepower of 285PS, a maximum torque of 370Nm, and a maximum power output of 190kW, paired with a 9-speed automatic transmission.
1
3
Share

What is the difference between the Prado and the Land Cruiser?

The differences between the Prado and the Land Cruiser are: 1. Different power: The Prado is equipped with a 3.5L naturally aspirated engine; the Land Cruiser is equipped with a 4.0L naturally aspirated engine. 2. Different transmissions: The Prado is equipped with a 6-speed automatic transmission; the Land Cruiser is equipped with an automatic transmission. 3. Different body dimensions: The Prado has a length, width, and height of 4840mm, 1885mm, and 1890mm respectively, with a wheelbase of 2790mm; the Land Cruiser has a length, width, and height of 5095mm, 1975mm, and 1930mm respectively, with a wheelbase of 2850mm.
9
0
Share

How Many Cylinders Does the Buick Envision Engine Have?

The Buick Envision engine is a four-cylinder. Taking the 2021 Buick Envision as an example, it is a midsize SUV with body dimensions of 4694mm in length, 1839mm in width, and 1686mm in height, a wheelbase of 2750mm, and a curb weight of 1610kg. The 2021 Buick Envision features a MacPherson strut front suspension and a multi-link independent rear suspension. It is equipped with a 1.5T turbocharged engine that delivers a maximum horsepower of 169PS, a maximum torque of 250Nm, and a maximum power of 124kW, paired with a 7-speed dual-clutch transmission.
4
4
Share

Why does the car shake violently after being parked for a month?

There are several reasons why a car may shake violently when started after being parked for a month: 1. Poor fuel quality: Low-quality fuel often has poor volatility, especially in winter when temperatures are low. During a cold start, the engine block temperature is low, making it difficult for the fuel to atomize. This results in insufficient mixing of fuel and air in the cylinders, causing starting difficulties and severe body shaking. 2. Carbon deposits in the engine valves and intake manifold: Carbon deposits can absorb a certain amount of fuel, leading to incorrect judgments by the electronic control unit. The actual fuel-air mixture controlled by the computer does not match the required parameters, and even if the mixture burns completely, it fails to provide the necessary power, resulting in shaking.
20
3
Share

What can be used to remove engine oil from shoes?

Gasoline or alcohol can be used to remove it. Below is relevant information about gasoline: 1. Definition of gasoline: Gasoline is a volatile, flammable hydrocarbon mixture liquid obtained from petroleum through distillation and cracking, which can be used as fuel. 2. Important characteristics of gasoline: The key properties of gasoline include volatility, stability, anti-knock quality, corrosiveness, and cleanliness. 3. Difference between 95-octane and 92-octane gasoline: 95-octane gasoline has better anti-knock quality than 92-octane. The better the anti-knock quality, the less likely the engine is to experience knocking.
5
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.