How much does Jetta need to clean up carbon deposits?

It is suggested that you check the carbon deposition in the air inlet, air inlet and combustion chamber with an endoscope first. If there is too much carbon deposit, it is best to spray cleaning liquid from the spark plug hole to wash away the carbon deposit in the combustion chamber. Use special equipment to pump a good carbon remover into the combustion chamber from the spark plug hole to melt the carbon deposits in the combustion chamber, and then suck these liquid carbon deposits out of the spark plug hole. This method is the best non-disintegration method at present. The price is around 800- 1000 yuan. If it's not too much, you can hang bottles for cleaning, and the cost is about 300-400 yuan. As for the need to clean the throttle separately, it should be checked every 10000-20000 km. Clean it in time when it is dirty, and the cost is about 50- 100 yuan. When it comes to cleaning the three-way catalyst, it is recommended that you clean the three-way catalyst every 65,438+00,000 kilometers, and you must clean the three-way catalyst every year before the vehicle exhaust condition test and every time the vehicle is cleaned and maintained. Depending on the selected materials, the cost is about 200-300 yuan.