What Causes the Foul Odor in Verna's Air Conditioning System?
2 Answers
The foul odor in Verna's air conditioning system is caused by a dirty air filter, which fails to function properly. As a result, airborne odorous substances and debris are not filtered in time, leading to the growth of mold in the evaporator box and producing a rotten smell. This odor enters the car through the air vents. The replacement cycle for the air filter is typically six months or 20,000 kilometers. If the air quality in the driving environment is relatively poor, the replacement cycle can be appropriately shortened. The Verna is a model jointly designed and developed by Beijing Hyundai, Hyundai North America, and the European Design Center. The Verna has a body length, width, and height of 4340mm, 1700mm, and 1460mm respectively, with a wheelbase of 2570mm.
I've been driving a Verna for several years, and the most common cause of AC odor is mold or bacteria growing on the evaporator. This mainly happens because the condensation water produced during cooling isn't fully drained, remaining in the pipes and fostering microbial growth. It's more likely to occur during seasonal changes or rainy periods, emitting a musty smell. Preventive measures are simple: turn off the AC and just run the fan for the last 5 minutes before parking to let the system dry out completely; replace the cabin air filter every six months; or use a specialized cleaner to spray and wash. I've personally tried cleaning, and the odor disappeared afterward. I recommend addressing it promptly to avoid affecting your driving mood and health.
