How often does the BMW 3 Series throttle have to be cleaned? What is the throttle cleaning procedure?

The following is about "How often does the BMW 3 Series throttle need to be cleaned? What is the throttle cleaning procedure? " ：

How often does the BMW 3 Series throttle have to be cleaned? Usually, the 4S shop recommends cleaning the automobile throttle every 20,000 km to 40,000 km, but the more frequent the cleaning, the better. Excessive cleaning will gradually clean off the special coating of the throttle chamber, and the inner chamber will lose the coating, which is more likely to cause greasy adhesion.

Throttle cleaning steps:

1. Find the throttle position, which is behind the air inlet and connected to the air filter;

2. Remove the air filter box first, and then remove the hose connecting the throttle valve and the air filter element;

3. Then unplug the throttle wire and sensor, and unscrew the fixed throttle bolt to complete the disassembly;

4. After that, use a special throttle cleaner to spray it on the oil dirt and carbon deposit, wait for the solvent to dissolve the carbon deposit, and dry it for 1-2 minutes.