Regular maintenance of environmentally friendly engine emission control systems

The new factory car has problems such as deterioration of emissions, performance degradation, use failures and environmental pollution. In addition to many factors such as fuel quality, sulfur-containing and phosphorus-containing lubricants, and harsh road conditions, regular maintenance of automobile maintenance companies The system can not meet the maintenance requirements of the environmentally-friendly engine emission control system is also one of the important reasons, the reasons for this situation: First, due to the defects of the national standard "Technical Specifications for Maintenance, Detection and Diagnosis of Automobiles", because many regulations of the national standards are still targeted The development of oil trucks and open-loop EFI vehicles lags behind the development of environmental protection technologies for automobiles. Therefore, the maintenance of environmentally-friendly engine emission control systems is a blank, and it has long been unable to meet the maintenance requirements of environmentally-friendly engines. Second, due to the defects of the automobile after-sales regular maintenance system, the automobile maintenance company's automobile after-sales regular maintenance system is formulated in accordance with the national standard “Technical Specifications for Automobile Maintenance, Inspection and Diagnosis”, and there is also a gap in the maintenance of environmentally friendly engine emission control systems. Therefore, the automobile maintenance enterprise's automobile after-sales regular maintenance system implemented by the automobile maintenance enterprise cannot guarantee the long-term normal operation of the environmentally friendly engine. Third, due to the defects of the regular maintenance methods adopted by automobile maintenance companies, most of the regular maintenance methods adopted by automobile maintenance companies are the traditional 5,000-kilometer oil-changing three-filter regular maintenance method and 20,000 km of cleaning inlets and nozzles. method. Due to the traditional 5,000-kilometer oil change, the three-filter regular maintenance method is limited to the maintenance of the engine lubrication system. 20,000 km cleaning inlet; the regular maintenance method of the injector is limited to the engine intake system, combustion system maintenance, can not meet the full-scale maintenance requirements of environmentally friendly engine lubrication system, intake system, combustion system, exhaust system, especially Environmentally-friendly engine emission control system maintenance requirements, so it is inevitable to ensure the normal operation of environmentally friendly engines under current fuel, lubrication and road conditions in China.

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In order to solve this difficult problem that is difficult for car manufacturers, maintenance companies, maintenance management departments, and environmental protection departments to solve, solve the problem of environmental pollution caused by vehicles, and promote the popularization of China's automobile I/M system, China Automobile in April 2007 The Information Center has set up a research group on China's automobile emission I/M operation mechanism headed by well-known automobile expert Mr. Du Fangci. The purpose of the research project of automobile emission I/M movement mechanism is to explore the establishment of an operational mechanism of operational I/M system under the current conditions in China, and to find out the emissions of vehicles in use through a large number of scientific and systematic data collection and analysis. The law of performance change, promote a new engine conventional maintenance concept in line with the I / M system, change the existing traditional, conventional maintenance technology to replace the oil filter.

In response to the shortcomings of the traditional engine conventional maintenance methods, the research team first studied the design and development of a new set of environmentally friendly engine conventional maintenance methods and technologies, "the engine comprehensive maintenance of new technologies." The new technology content is: customers each When performing regular maintenance, first check the engine's comprehensive working condition for the customer's vehicle, and then replace the oil filter and ternary cleaning for the customer's vehicle. Its technical characteristics are: combining the "automobile exhaust gas control system inspection and maintenance project" and the traditional engine regular maintenance method to make up for the defects that the traditional engine regular maintenance method can not meet the environmental protection engine maintenance requirements, and will passively solve the environmental protection engine. The problem of abnormal operation of the emission control system becomes an active problem. The environmental protection engine has an abnormal operation of the emission control system.

China Automotive Emission I/M Operation Mechanism Research Group selected “Quan Shuang Brand Sanyuan Cleaning Agent” and “Quan Shuang Brand Sanyuan Maintenance Agent” as the “All-round General Maintenance Technology for Engines”, among which the capacity is 1000ml. The "Quan Shuang brand ternary cleaning agent" is used to solve the problem that the emission control system is not working properly in the environmentally friendly engine. The "Quan Shuang brand ternary curing agent" with a capacity of 500 ml is used to prevent the environmental protection engine from appearing in the emission control system. problem.

The process flow of the engine comprehensive maintenance new technology is:

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The process of the engine comprehensive maintenance new technology

Promoting the "new engine comprehensive maintenance technology" can change the current situation of auto maintenance enterprises in the conventional maintenance methods, mechanisms, awareness, equipment, technology, products, and efficiency of the automobile, and can improve the routine maintenance level of the engine of the maintenance enterprise. The company has brought a new market equivalent to the routine maintenance of the oil filter three-filter engine, which has greatly improved the efficiency of the maintenance engine routine maintenance project.

The engine comprehensive maintenance technology (hereinafter referred to as the new technology) and the engine replacement oil three filter conventional maintenance traditional technology (hereinafter referred to as traditional technology) have incomparable advantages:

Functional comparison

The traditional technology is limited to the maintenance of the engine lubrication system. It cannot meet the all-round maintenance requirements of the environmentally friendly engine lubrication system, intake system, combustion system and exhaust system. It cannot guarantee the normal operation of the environmentally friendly engine under the current fuel, lubrication and road conditions. Install OBD Euro III. The normal operation of the car can not solve the fuel consumption increase, power drop and exhaust caused by engine intake system, combustion system manganese deposits, oxygen sensor three-way catalytic converter poisoning failure, three-way catalytic converter blockage, EGR valve deposits and other problems. Excessive. The new technology can comprehensively protect the engine lubrication system, intake system, combustion system and exhaust system at the same time, which can ensure the normal operation of the environmentally friendly engine. The normal operation of the OBD Euro III vehicle can be prevented, and the current fuel, lubrication and road conditions can be prevented. Engine intake system, combustion system manganese deposits, oxygen sensor, three-way catalytic converter poisoning failure, three-way catalytic converter blockage, and EGR valve deposits are caused by driving a mileage.

Environmental comparison

Traditional technology cannot allow auto repair shops to control customer vehicle exhaust emissions through routine maintenance, and it is impossible to guarantee the annual inspection of customer vehicle exhaust.

The new technology allows the auto repair shop to control the exhaust emissions of the customer's vehicles through routine maintenance, which can ensure that the customer's vehicle exhaust gas is inspected once a year.

Comparison of effects

The traditional technology does not change significantly from the driver's feeling, computer detection, and exhaust gas detection after the conventional maintenance of the customer's vehicle.

After the new technology is used for the maintenance of the customer's vehicle, the driver will obviously feel the throttle is light, the speed is fast, the power is increased, and the fuel consumption is reduced. Through computer inspection and observation, the abnormal fuel correction value, oxygen sensor output voltage and frequency of change will be restored to normal after the new technology is routinely maintained, and the fuel injection pulse width will be significantly reduced. Through the exhaust gas detection and observation, after the ternary cleaning and curing, the exhaust gas exceeding the normal emission value will be greatly reduced to return to the normal value.

Fuel consumption comparison

The conventional technology does not change the fuel consumption after the conventional maintenance of the customer's vehicle.

The new technology can detect the fuel injection pulse width from the computer after the routine maintenance of the customer's vehicle. It can be observed that the fuel consumption of most vehicles is reduced by about 10%.

Comparison of the effects of oxygen sensor and three-way catalyst

The traditional technology does not play a role in the maintenance of the closed-loop EFI oxygen sensor and the three-way catalytic converter.

The new technology can eliminate the chemical complex attached to the oxygen sensor and the three-way catalytic converter for the maintenance of the closed-loop EFI vehicle, and can clear the blockage caused by the adhesion of the chemical complex by the three-way catalyst. It can restore the exhaust gas purification function of the three-way catalytic converter, prolonging the service life of the oxygen sensor and the three-way catalytic converter by 3 to 4 times.

Benefit comparison

The conventional technology of new technology increases the efficiency by 30~50% compared with the conventional maintenance of traditional technology. A medium-sized auto repair shop that maintains 40 vehicles per day, using the “Ternary Maintenance Agent” as an accessory product:

Increase the regular maintenance gross profit per trip: retail price 98 / set + working hour fee 30 yuan / train - purchase price 40 yuan / set = gross profit 88 yuan / train

Increase daily maintenance gross profit: 40 vehicles × 88 yuan / gross profit / train = 3520 yuan

Increase the gross profit of conventional maintenance every month: 3,520 yuan × 30 days = 105,600 yuan

In order to effectively promote the "new engine comprehensive maintenance technology", the China Automotive Emissions I/M Operation Mechanism Research Group has launched a complete set of "Environmental Engine All-Round Maintenance Concept" as follows:

Environmentally friendly engine is prone to problems

Due to the poor quality of fuel oil in China, the fuel uses manganese-containing anti-riot agent MMT, ethanol gasoline is used in some areas, lubricating oil uses sulfur, phosphorus antioxidants, road congestion and many other factors. The car will travel for a long distance because of the intake valve and combustion. Room sediments, oxygen sensors, three-way catalytic converter poisoning failure, three-way catalytic converter blockage and EGR valve deposit blockage caused the engine to work abnormally, resulting in increased fuel consumption, power loss, excessive exhaust gas and other issues.

The impact of abnormal environmental protection engine work on customers

1. At least increase fuel consumption by more than 10%, which greatly increases the running cost of automobiles and causes huge waste of social fuel resources.

2. The annual inspection of automobile exhaust emissions cannot pass normally, increasing the annual inspection cost of automobile users.

3. The service life of the oxygen sensor and the three-way catalytic converter will be greatly shortened, and the maintenance cost of the automobile user will be increased.

4. Cause serious pollution to the environment.

5. Install the OBD self-test system and the car cannot run normally.

6. The Beijing Environmental Protection Bureau's vehicle exhaust laser remote sensing monitoring vehicle began to work on the road. Environmental violations will restrict vehicles with abnormal engine operation.

Environmentally friendly engine requirements for regular maintenance

1. It is required to carry out all-round maintenance of the engine lubrication system, intake system, combustion system and exhaust system. In particular, the maintenance of the exhaust gas control system determines more than 90% of the working condition of the engine.

2. It is required to ensure the best fuel consumption and power working state of the engine and maintain a good exhaust emission level for a long time.

3, the requirements can prevent and solve the engine intake valve, combustion chamber deposits, oxygen sensor, three-way catalytic converter poisoning failure, three-way catalytic converter blockage caused by the current fuel, lubrication, road conditions, driving a mileage EGR valve deposits are stuck and other issues.

Defects of traditional conventional maintenance methods

The traditional three-filter regular maintenance method for oil change is limited to the maintenance of the lubrication system, and cannot meet the comprehensive maintenance requirements of the environmentally friendly engine lubrication system, intake system, combustion system and exhaust system, especially the exhaust system control unit cleaning and maintenance for a long time. It has always been a blank, so there is no guarantee that the environmentally friendly engine will work normally under the current fuel, lubrication and road conditions. It is impossible to guarantee the normal operation of the OBD car, and it cannot solve the environmentally friendly engine intake valve, combustion chamber deposits, oxygen sensor, and three-way catalytic converter. Problems such as poisoning failure, three-way catalytic converter blockage, and EGR valve deposits are caused by increased fuel consumption, reduced power, and excessive exhaust gas.

Environmentally friendly engine comprehensive maintenance technology

“Environmental Engine All-round Maintenance” is a green and environmentally-friendly conventional maintenance method for automobile engines launched by the China Automotive Emission I/M Operation Mechanism Research Group. It adds engine comprehensive work based on the traditional maintenance of oil-removing three-filter conventional maintenance. Condition detection and ternary cleaning maintenance, because it can meet the maintenance requirements of engine lubrication system, air intake system, combustion system, exhaust system, especially the cleaning and maintenance requirements of exhaust system exhaust control device, it can restore and ensure environmental protection The best fuel consumption and power working condition of the engine can maintain the best exhaust emission level of the automobile, and can prevent and solve various problems that are easy to occur in the environmentally-friendly engine under current fuel, lubrication and road conditions. It is the only one that can meet the regular maintenance of environmentally friendly engines. The usual maintenance methods required.

Suggestions for regular maintenance of environmentally friendly engines

China Automotive Emission I/M Operation Mechanism Research Group recommends that automobile production plants, automobile 4S shops, special-purpose factories, and integrated repair factories replace the traditional engine replacement oil three-filter conventional maintenance with green and environmentally-friendly "engine all-round conventional maintenance" regular maintenance methods. Regular maintenance method; it is recommended that the car user choose the auto repair factory that can provide the "all-round routine maintenance of the engine" when the engine is regularly maintained. It is recommended that the car user choose the "main engine general maintenance" regular maintenance mode for the environmental protection engine maintenance.

Advice on the regular maintenance cycle of environmentally friendly engines

The China Automotive Emission I/M Operation Mechanism Research Group recommends regular maintenance of the engine every 5,000 km or 3 months under the current fuel, lubrication, and road conditions using the “All-round General Maintenance Method for Engines”. It is recommended that car users establish a modern "timely detection, condition-based maintenance" car maintenance awareness, once it is found and feels that the car has increased fuel consumption, power loss, speed increase, speeding up the car, poor shifting, idling, easy to stall, difficult to start , OBD fault light alarm, etc., immediately go to the garage to carry out computer testing and exhaust gas testing, and carry out ternary cleaning maintenance and other corresponding maintenance.

China Automotive Emission I/M Operation Mechanism Research Group has vigorously advocated the concept of “real-time monitoring and on-demand maintenance” and corresponding methods. In view of the actual situation in China, it also launched a 5,000-kilometer engine comprehensive maintenance system and various environmental protection. Engine professional regular maintenance project. These projects include “20,000-kilometer intake system regular maintenance project”, “20,000-square-meter nozzle cleaning and cleaning package regular maintenance project”, “50,000-kilometer comprehensive cleaning and maintenance maintenance regular maintenance project”, etc. The annual inspection of emissions also introduced the “Special Maintenance Project for Annual Inspection of Automobile Exhaust Gas” to meet the needs and choices of users to the greatest extent, saving the maintenance cost of users; maximizing the guarantee of the user's vehicle in the best working condition; minimizing the vehicle The pollution of the environment protects the environment on which we depend and keeps the blue sky forever.

The 5,000-kilometer engine comprehensive maintenance system includes the following contents

(1) Periodic inspection: Firstly, the engine comprehensive inspection is carried out every time the 5,000-kilometer engine is regularly maintained. The items include: car consultation, computer inspection, and exhaust gas detection.

(2) Preventive routine maintenance: If the engine is working properly, perform preventive routine maintenance: 1. Replace the oil and filter. 2. Replace the air filter and steam filter according to the manufacturer's specifications. 3. Use 500ml ternary curing agent for ternary cleaning and curing. 4. Complete other regular maintenance items as specified by the manufacturer.

(3) Mandatory regular maintenance: If the engine is not working properly, perform mandatory routine maintenance: 1. Replace the oil and filter. 2. Replace the air filter and steam filter according to the manufacturer's specifications. 3. Use 1000ml ternary cleaning agent for ternary cleaning and curing. 4. Complete other regular maintenance items as specified by the manufacturer.

(4) Please maintain: 1. If the computer detects that the air flow meter is not working properly, increase the air flow meter to clean and maintain. 2. If the computer detects that the throttle is not working properly, increase the throttle cleaning and maintenance. 3. If the computer detects that the injector is not working properly, increase the ultrasonic cleaning and maintenance of the injector. 4. If the computer detects damage to parts, add replacement parts maintenance items.

According to the status quo and conditions of China's automobile maintenance enterprises, the research group of China's automobile emission I/M operation mechanism provides two sets of solutions for maintenance enterprises to implement the “5-kilometer comprehensive maintenance system for environmentally friendly engines”:

A, simple and all-round regular maintenance

Maintenance items: change the oil three filter + ternary cleaning maintenance

Supporting product selection: medium and small displacement, medium and low grade car ternary cleaning and maintenance selection 500ml ternary curing agent, large and medium displacement, medium and high-end car accessory products choose 1000ml ternary cleaning agent.

Suitable for 4S shops, specialized factories, small and medium-sized comprehensive repair shops and brand maintenance stores with imperfect testing equipment.

Service Process:

a. The customer's vehicle enters the factory for routine maintenance.

b, the front desk business allows customers to choose to do the oil filter three filter routine maintenance or a full range of routine maintenance. Or the front desk business work orders directly list all-round maintenance projects for customer recognition.

c. After the customer selects and approves, the maintenance worker performs the three-filter maintenance of the oil change, and then carries out the ternary cleaning and maintenance.

d. After the above work is completed, the simple and comprehensive maintenance service process ends.

B, standard all-round regular maintenance

Maintenance items: engine comprehensive detection + replacement oil three filter + ternary cleaning maintenance + conditional maintenance

Supporting product selection: testing normal vehicles, ternary cleaning and maintenance selection of 500ml ternary curing agent, detection of abnormal vehicle ternary cleaning and maintenance selection of 1000ml ternary cleaning agent.

It is suitable for large and medium-sized automobile 4S shops and specialized factories with perfect testing equipment.

Service Process:

a, the customer vehicle enters the factory for routine maintenance;

b. The front desk business knows whether there is a comprehensive maintenance user manual for the customer. If not, firstly, the user manual is processed for the customer. The user manual is an important part of the service process; first, it can guide the customer to choose the whole maintenance in the next step. It allows customers to understand the concept of comprehensive maintenance and establish a comprehensive awareness of conservation. Third, it allows the garage to quickly establish a comprehensive maintenance customer base;

c. After the user manual is processed, hand it over to the customer, let the customer choose to do the oil filter three filter maintenance or comprehensive maintenance, or the front desk business work order directly lists the standard all-round maintenance project for the customer to recognize;

d. After the customer chooses or approves to do all-round maintenance, the front desk business takes a “vehicle comprehensive working condition checklist” to conduct a car consultation for the customer, and transfers the work order and test order to the maintenance process after the consultation;

e. After receiving the maintenance vehicle, work order and inspection list, the maintenance personnel first perform computer testing and exhaust gas detection on the maintenance vehicle, and fill in the initial inspection record in the inspection list;

f. If the test is qualified, the maintenance personnel can start to change the oil filter and then carry out the ternary cleaning and maintenance. After the completion, transfer the work order and test order back to the front desk;

g. If the test fails, the maintenance personnel must first inform the customer of the test situation, and inform the customer which faults can be eliminated after all-round maintenance. Those faults cannot be excluded, and the customer is required to choose 1000ml ternary cleaning agent for maintenance, product and working hours. What is the cost? After the customer approves and signs the test sheet, it first replaces the oil filter and then performs the ternary cleaning and curing;

h. After the maintenance is completed, the maintenance personnel will accompany the customer for 5~10km at high speed, and carry out comprehensive inspection again. If the test is qualified, fill in the re-inspection record in the test list, transfer the work order and test order back to the front desk, if the test fails, but all After the azimuth maintenance, there is a great improvement. It is recommended that the customer carry out a ternary cleaning and maintenance. If the computer detects that the air flow meter, the throttle body and the fuel injector are not working properly, it is recommended that the customer increase the air flow meter cleaning and maintenance and throttle. Cleaning and maintenance, ultrasonic cleaning and maintenance of the injector. If the temperature sensor, oxygen sensor and three-way catalytic converter are detected to be damaged, it is recommended that the customer increase the replacement parts maintenance project;

i. After the customer approves that all the troubleshooting and comprehensive tests are fully qualified, fill in the final re-examination record on the test list, transfer the work order and test order back to the front desk, and the front-end business asks the customer for the user manual, and fills in the qualified test data. The user manual is handed over to the customer, and the customer is informed to keep the user manual in a safe place. The user manual must be taken with the next repair or maintenance, and the standard comprehensive maintenance service process ends.

The implementation of the “5-kilometer comprehensive maintenance system for environmentally-friendly engines” not only allows maintenance companies to control the emission of customer vehicles through regular maintenance, but also brings a large number of urgently needed businesses and benefits to maintenance companies. The following is the data of the maintenance enterprise statistics through a number of implementations of “Environmental Engine 5,000 km All-round Periodic Maintenance System”:

1. The maintenance and repair business that the regular inspection system can bring to the maintenance company:

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Maintenance business volume

2. The preventive routine maintenance system and the mandatory routine maintenance system can bring the ternary cleaning and maintenance services to the maintenance enterprise:

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Ternary cleaning maintenance

3. The average benefit that the maintenance system can bring to the maintenance company:

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Average return

Environmentally-friendly engine 20,000 km intake system package regular maintenance project

Environmentally-friendly engine 20,000 km intake system package regular maintenance project is an advanced engine launched for the traditional air-conditioning system, the cleaning and maintenance of the modern environmental protection engine exhaust system oxygen sensor and three-way catalytic converter. The air intake system maintenance method not only makes up for the shortage of the traditional air intake system, but also greatly improves the maintenance effect and economic benefit of the conventional air intake system. It is very suitable for environmental protection engine 20,000 km intake system regular maintenance and engine intake system work abnormally when maintenance.

Maintenance items: air intake system free cleaning and maintenance + ternary cleaning maintenance.

Product selection: ternary cleaning and maintenance options 500ml Quan Shuang brand ternary curing agent.

Service Process:

A. The customer's vehicle enters the factory for maintenance;

B. The receptionist knows from the customer whether the intake system cleaning and maintenance or the engine intake system is not working properly within 20,000 km;

C. If there is one of the conditions, it is recommended to the customer to do an “environmental engine intake system package maintenance”;

D. The customer approves the work order, and the maintenance personnel carry out the “environmental engine intake system package maintenance” for the customer vehicle.

Environmentally-friendly engine 20,000 km injector nozzle free cleaning kit regular maintenance project

"Environmental Engine Injector Disassembly Cleaning Package Maintenance" is an advanced engine for the pollution and poisoning of the modern environmentally friendly engine exhaust system oxygen sensor and three-way catalyst for the traditional nozzle cleaning and cleaning maintenance. The nozzle cleaning and maintenance method not only makes up for the shortage of the traditional nozzle cleaning and maintenance, but also greatly improves the cleaning effect and economic benefit of the traditional injector, which is very suitable for the environmental protection engine 20,000 km nozzle Regular maintenance and maintenance when the engine injector is not working properly.

Maintenance items: nozzle cleaning and maintenance + ternary cleaning maintenance.

Product selection: ternary cleaning and maintenance options 500ml Quan Shuang brand ternary curing agent.

Service Process:

A. The customer's vehicle enters the factory for maintenance;

B. The receptionist knows from the customer whether the injector has been cleaned and maintained in the 20,000 km or whether the engine fuel injection system is not working properly;

C. If there is one of them, it is recommended to the customer to do a “car engine injector cleaning and maintenance package maintenance”;

D. The customer approves the work order, and the maintenance personnel perform the “maintenance of the car engine injector without cleaning and cleaning package” for the customer vehicle.

Environmentally-friendly engine 50,000 km all-round deep cleaning maintenance regular maintenance project

"Environmental engine comprehensive deepening cleaning and maintenance" is a high-grade maintenance method for vehicles with more than 50,000 kilometers, medium and high-grade cars and engines with abnormally abnormal work. It can bring maintenance enterprises to meet the high-end maintenance requirements of some customers. Come to greater economic benefits.

Maintenance items: lubrication system cleaning and maintenance + replacement oil three filters + air inlet free cleaning cleaning + fuel nozzle free cleaning cleaning maintenance + ternary cleaning maintenance

Product selection: ternary cleaning and maintenance selection 1000ml Quanshuang brand ternary cleaning agent.

Service Process:

A. The customer's vehicle enters the factory for maintenance;

B. The receptionist knows whether the customer is very concerned about the maintenance of the car and whether there is a high-grade maintenance requirement for the vehicle;

C. Understand whether the customer's vehicle has traveled more than 50,000 kilometers, and whether there is serious abnormality in engine operation;

D. If there is one of them, it is recommended to the customer to do “all-round deep cleaning and maintenance of the automobile engine”;

E. After the customer approves, the work order will be issued, and the maintenance personnel will carry out “all-round deep cleaning and maintenance of the automobile engine” to the customer's vehicle.

Special inspection project for automobile exhaust annual inspection

"Special maintenance of automobile exhaust annual inspection" is aimed at the current 90% of the vehicles in use are not working properly, more than 10% of the annual exhaust emissions of vehicles are not up to standard, maintenance enterprises lack engine exhaust control system cleaning and maintenance technology and products, can not control customer vehicles Exhaust gas emission level, the maintenance enterprise lacks the detection technology and method synchronized with the exhaust gas condition detection, and can not guarantee the special engine maintenance method introduced by the customer vehicle exhaust gas annual inspection and other problems. Through the "Car Exhaust Annual Inspection Special Maintenance Project" maintenance enterprise can meet the maintenance requirements of the customer's vehicle exhaust gas inspection once a year, can get a huge market for the annual inspection of the vehicle exhaust gas, can control the emission level of the customer's vehicle exhaust, and ensure that the customer's vehicle exhaust gas is inspected once a year. The vehicle exhaust control system checks maintenance techniques and methods.

Maintenance items: ternary cleaning and maintenance + engine comprehensive inspection + maintenance and repair.

Product selection: ternary cleaning and maintenance option 1000ml (Quan Shuang brand ternary cleaning agent).

Service Process:

A. The customer's vehicle enters the factory for maintenance;

B. The receptionist knows through the driving license whether the customer's vehicle needs to carry out annual exhaust gas inspection this month or next month;

C. If it is necessary to inform the customer that the annual inspection of the automobile exhaust gas is to be carried out before the annual inspection of the exhaust gas;

D. After the customer approves the work order, the maintenance personnel will carry out the “special maintenance of the annual inspection of the automobile exhaust” to the customer's vehicle;

E. Inform the customer of the emission test results after maintenance.

The environmentally-friendly engine emission control system is regularly maintained by the scientific system of 5,000 kilometers, the 20,000-kilometre intake system package is regularly maintained, the 20,000-km nozzle is free of cleaning and cleaning packages, and the maintenance is 50,000 kilometers. The professional maintenance items such as the special annual maintenance of automobile exhaust gas inspection can fully guarantee the normal work and effective emission control, and can fully meet the requirements of environmental protection engine lubrication system, intake system, combustion system and exhaust system. And to solve various problems that are prone to occur in the current fuel, lubrication, and road conditions, automobile manufacturers and automobile maintenance companies promote these environmentally-friendly engine professional maintenance projects, which can not only solve various problems in the past regular maintenance, but also fill in the long-term problems. Environmental protection engine emission control system maintenance technology gap, improve the regular maintenance level of environmentally friendly engines, meet the I / M system and national environmental protection policy requirements, can also bring huge market and benefits for enterprises.

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