How much does it cost to clean the throttle of Volkswagen Touran, and how long does it take to clean the throttle of Touran?

The following is about "How much does it cost for Volkswagen to clean the throttle, and how long does it take to clean the throttle?" ：

The price of cleaning the throttle of Volkswagen Touareg in 4s stores is generally around 300 yuan, and the throttle is generally cleaned once every 40,000 kilometers. Throttle is a controllable valve that controls air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, which will be burned to do work. It connects the air filter and the engine block, and is called the throat of the automobile engine.

The throttle valve belongs to the air intake area. At present, the work of each piston of the engine is not synchronous. When the engine is turned off, the intake valves of some cylinders cannot be completely closed, and some unburned fuel is constantly evaporated and oxidized, which will produce some carbon deposits in the intake pipe, especially behind the throttle. On the one hand, these carbon deposits will block the idle channel and make the throttle stuck or beyond its adjustment range; On the other hand, it will make the pipe wall of the intake pipe rough, and the intake will produce eddy currents in these rough places, which will affect the intake effect and the quality of the mixture, thus causing idle jitter, poor speed increase, flameout and fuel consumption.