How often does the Mercedes-Benz throttle have to be cleaned?

Mercedes-Benz accelerator is cleaned every 20,000 kilometers. Throttle is a controllable valve to control the air entering the engine. There are two kinds of throttle valves: traditional cable throttle valve and electronic throttle valve. After the gas enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, which will be burned to do work. It is connected with the air filter and the engine block. Take Mercedes-Benz GLE as an example: its length, width and height are 494 1mm, 20 18mm and 1782mm respectively, and its wheelbase is 2,995 mm.. The body type is a 5-door 5-seat SUV, and the gearbox is a 9-speed automatic manual transmission with a top speed of 225 km/h. ..