Clean the air filter cover and housing.
Before cleaning the air filter cover and housing, cover the air duct parts, mass airflow sensor (if available), throttle valve with a clean cloth.
Insert a new filter element into the filter housing.Make sure that the filter edge fits tight to the housing.
Replacement: air filter – Peugeot 407 saloon. Be sure to position the filtering element correctly. Avoid misalignment.Take care to only use quality filters.During installation, make sure to prevent dust and dirt from getting into the air filter housing.