What Causes Odors Inside the Nissan Sylphy?

[Sheldon]

Typically, odors are only present during the new car period and will naturally dissipate after some ventilation. If the odor persists, it may be caused by a dirty cabin air filter, which requires replacement to resolve the issue. Below are relevant details: 1. When excessive dust accumulates on the car's cabin air filter or heating ducts, it can lead to fungal growth, emitting odors that are released into the car through the air vents. In this case, using an air conditioner cleaner to clean the vents or replacing the cabin air filter can solve the problem. 2. It is generally recommended to replace the cabin air filter every six months. Its main function is to filter impurities in the air, such as dust, odors, and ozone. When cleaning the cabin air filter, ensure to blow compressed air from the reverse side for cleaning, maintaining a distance of about 5 cm from the filter, and hold the air gun at 500 kPa pressure for approximately 2 minutes.