The Renault 19 instruction manual prescribes to replace the air filter for cars with a gasoline engine after one oil change, i.e. every 20,000 km, and for a diesel engine - after two oil changes, i.e. every 22,500 km. In addition, the paper filter element must be purged with compressed air at least once a year. If you drive on country roads, you must carry out this operation after 5000 km.
1. Remove the filter element from the filter housing.
2. Tap the paper filter on a hard surface.
3. Blow it out with compressed air.
4. Direct the air stream from the filter outwards.
5. Do not wash the air filter with liquid. This will clog his pores.