The air filter element should be changed at least once every two years. With increased dustiness of the area, this interval is reduced. Replacing the filter element is easily done after removing the air filter housing cover. More information on this subject can be found in sect. «Diesel injection system».
The filter is cleaned by tapping it with a hard object and then blowing with compressed air to remove fine dust. In this case, the air stream should be directed from the side, along the plates. In no case do not direct it directly at the plates - in this case, dust will rush into the engine. Do not use filter cleaning fluid. The filter housing is wiped with a rag.