What Causes the Unpleasant Odor in Chery Ant's Heating System?
2 Answers
Chery Ant's heating system unpleasant odor reasons are as follows: Evaporator (also known as the evaporator box) issue: The car's heating primarily comes from the heat of the radiator, which is located inside the evaporator. The heating system utilizes the engine's cooling process to blow heat into the cabin via a blower. Over time, a small amount of moisture and dust may accumulate on the evaporator, leading to mold growth and consequently producing an unpleasant odor. Air conditioning duct odor: The air conditioning ducts can develop an odor due to dampness and mold. It is recommended to turn off the AC switch 2 minutes before parking and switch to external air circulation to continue blowing until the car is parked. This practice helps dry out the moisture in the ducts and prevents mold growth. Air filter odor: The air filter has a usage cycle and should generally be replaced every two years. Over time, it can also develop mold and produce an unpleasant odor. Additionally, bacteria can accumulate inside, which is harmful to human health.
I've driven quite a few cars myself, and it's quite common for the Chery Ant's heater to develop unpleasant odors. The main reason is the growth of mold or bacteria inside the evaporator due to moisture, especially after seasons with heavy rain or frequent use of the air conditioning. The odors are usually musty or dusty, stemming from an aging or clogged cabin air filter, which results in less fresh air being blown out by the heater. Leaving the heater unused for long periods or parking the car for extended durations can also lead to moisture buildup and rampant mold growth. The solution isn't difficult—regularly replacing the filter is key, at least once a year, and using an automotive air conditioning cleaner to spray the air intake while running the fan to clear out dirt. Developing a habit of running the heater for half an hour during non-rainy seasons can help sterilize and prevent issues beforehand. If the problem becomes severe, a professional deep cleaning at a repair shop may be necessary. Failing to address it promptly can degrade the air quality inside the car and even trigger coughing or allergy symptoms.
