My car has been in the market for about a year, and routine maintenance has been done three times. The car’s operation is easy and smooth, the power is constant, and the fuel consumption is quite fuel-efficient. When choosing a car, you are attracted by the appearance, and you love the appearance and have high value for U.S. stocks. It has a high reputation. It’s 10000 kilometers since the last maintenance. I went on a business trip and didn’t have time to maintain it. I had no problems driving. I ran a little faster, about 4 months. Make an appointment with an after-sales maintenance service store in advance for maintenance, and the time is set in the morning. I hope to maintain it quickly and do other things.
The next morning, the car came to the after-sales maintenance service store. After a comprehensive inspection, the master suggested that I do a carbon cleaning of the engine. The master explained that the carbon deposit was mainly caused by impurities in the engine oil that would form precipitates. These precipitates would form hard carbon deposits on the fuel injection nozzle and intake valve. With the carbon deposits, it is difficult for the car to start. Moreover, the idle speed is unstable, the power is reduced, and the fuel consumption is increased. After cleaning this time, we will see if the fuel consumption will be less and share it with everyone then. directly on the map
Arriving at the after-sales service outlet, handing the car over to the receptionist, I was ready to go to the customer rest area.
The guest rest area is clean and tidy and looks so comfortable.
There are also toys in the children’s area and so on.
These teas are self-service and snacks are also available.
It was boring after staying for a while, so I came to the after-sales maintenance workshop
Direct access to the parking space
The master comprehensively inspects the car
When carbon deposits adhere to the intake and exhaust valves, the intake and exhaust valves are not tightly closed and leak, and the pressure in the engine cylinder drops. The direct result is that the engine is difficult to activate and jitter occurs under idle conditions, which reduces engine power.
When carbon deposits adhere to the cylinder and piston crown, it will reduce the combustion chamber volume and increase the cylinder compression ratio. When the compression ratio is too high, it will cause the engine to burn prematurely and reduce the power.
When carbon deposits adhere to the spark plug, it affects the quality of the spark and does not even flash.
The waste engine oil discharged is particularly black.
Then replace it with a new oil filter.
When carbon deposits form between the piston rings, it will easily jam the piston rings, causing burning oil and tearing the cylinder wall.
When carbon deposits adhere to the oxygen sensor, the oxygen sensor cannot correctly sense the exhaust gas condition and cannot correctly adjust the air-fuel ratio, resulting in excessive engine exhaust.
The air filter element can still be used, blow it on and continue to use it ~
The master also added oil nozzle cleaner for me.
When carbon deposits form inside the intake manifold, the interior becomes rough, affecting the formation and concentration of the combustible mixture.
In summary, regularly carry out the necessary homework for car carbon deposition cleaning and maintain the quality of car engine work, which is a very important aspect of car maintenance. A few days ago, I also took my Rongfang to do carbon removal, and it still felt very good.
Removing carbon deposits is not an easy job. The staff must have very professional knowledge and serious qualities. These points can be seen from the employees of the 4s store. They are all very serious and great. After the carbon removal was over, my glory became really clean and comfortable to watch.
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IraMorrison 
2 
September 3, 2024 
