The air filter is in a housing on the engine compartment's left side. To remove it, loosen the screw securing the coolant pipes to the cover and detach them. Remove the screws holding the air filter housing together, separate the halves, and take out the filter. Check the filter's outer surface. If dirty, replace it. If moderately dusty, clean it with compressed air. It can't be washed or oiled. If it can't be cleaned, replace it. Be careful not to drop anything into the housing while the cover is off. Clean the housing interior. Install the new filter, ensuring it fits correctly. Reassemble the housing in reverse order.