How does the new Jetta clean the throttle by itself?

How does the new Jetta clean the throttle by itself? Yesterday, I went for maintenance and changed the three filters, which cost more than 600 yuan. I told the service staff that the car would shake occasionally. Later, he came out and told me that the air intake was small and the throttle needed cleaning, which cost more than 400 yuan. I went to clean the throttle 4S shop and decided to do it myself. Which rider did it? Come out and talk. Is there a computer after cleaning? How to clean the new Jetta throttle (see transaction price | model details)? Yesterday, I went for maintenance and changed the three filters, which cost more than 600 yuan. I told the service staff that the car would shake occasionally. Later, he came out and told me that the air intake was small and the throttle needed cleaning, which cost more than 400 yuan. I went to a store in 4S that cleaned the throttle and decided to do it myself. Which rider did it? Come out and talk about it, and it's over. The new Jetta is an electronic throttle, and there are some coatings inside, which can't be cleaned with carburetor cleaner. The old cable throttle doesn't matter. What is a throttle? Take off the air filter directly and spray it with detergent directly, but to hit the car, raise the throttle to 4 thousand rpm. Don't let go of the throttle! You can go to other public forums to see. For example, New Bora, Polo, Jing Rui, etc. all have good posts about DIY cleaning throttle, which can be referred to @20 19.