Why Does My Car Air Conditioning Smell?

Do you smell something awful in your car? Have you ever wondered why is it so? Did you ever ask your mechanic: “Why does my car air conditioning smell? ” In this blog, we will try and answer a few questions about that.

A system inside your automobile called automotive air conditioning enables you to chill the indoor air quality of the car in warm weather, creating a cooler environment for the occupants. Majority car owners nowadays require air conditioning, which has become standard equipment in practically all recently made vehicles.

The Packard Motor Company in the United States was the organization that first fully developed the idea of air conditioning in an automobile. They introduced air conditioning as an optional extra for buyers of their cars in 1939. Initially slow to gain popularity, air conditioning was installed in over half of all newly manufactured cars by 1970. However, sometimes, there is an awkward smell coming from the air conditioner.

Major Reasons Why Does My Car Air Conditioning Smell Bad?

In the below paragraphs, let us discuss the same. The compressors, capacitor, and evaporator are the three primary components of your car’s air conditioner. They all work together to move a chemical known as coolant through a shuttered high pressure/low pressure system. Coolant, a crucial component of the air conditioning system, transforms from liquid to gas and again to gas.

Like the radiators in your automobile, the condenser dissipates heat while also chilling the high-pressure coolant so that it condenses into a high-pressure liquid. Before proceeding to the condenser, which is housed inside the car cabin, the high-pressure fluid swells and turns into a low-pressure fluid at this point as it enters the low-pressure side of the loop system. The air conditioning system in the automobile is a crucial component for making driving enjoyable, especially when the external temperature rises.

The air conditioning system helps beat the summertime heat. Your car’s air conditioning system may sometimes start to release some unpleasant odors due to abuse and excessive use, as well as occasionally just poor luck.

If this has ever happened to you while driving or when riding in the car, you precisely understand what we’re speaking about. When you enter the hot automobile and reach out for the AC, you are suddenly confronted in the face with a disagreeable (and unwelcome) fragrance.

This odor has already been widely characterized as musty, somewhat like rotten eggs, filthy socks, fishy, burnt plastic, and gas, to name a few. It has also been known to cause migraines, dizziness, and shortness of breath in certain people. Some of the major reasons why the car air conditioning smells bad are that the air conditioning system in your automobile creates no cold air; instead, it removes moisture and heat from the surrounding air, making your car feel much colder than that of the air surrounding you.

Before forcing the cool air into your automobile, the coils in the AC unit operate to condense the heat and humidity in the air, removing the humidity. Warm air entering the unit may cause moisture pockets to form around the condensing unit in your air conditioning system because these coils are chillier than the air all over them. These moisture pockets then condense into small water pools that are depleted from the vehicle via the outlet pipe and thrown outside.

However, if humidity has become stuck or cannot navigate its way out of the AC unit for whatever purpose, it will pool within the unit and around the coils, creating humidity inside the AC unit. If your sink line is broken or you operate your air condition frequently, the unit is likely to remain humid all of the time, creating a fertile ground for germs and mildew.

The foul odor will be carried inside one’s car through your splash ventilation system by the air that flows through the heat exchanger and the mold build-up on the unit. Mold is the primary common cause of odors coming from your car’s air conditioner. Bacteria, mold, and other undesired microorganisms can begin to grow in an old vehicle.

If the AC component is not utilized frequently or is used excessively, this can encourage the growth of these bacteria inside your car’s AC system and exhaust fans in general. Mold that causes odors loves to live in the car’s AC unit since it is always humid and dark. Hence, it provides ideal conditions for the mold to grow. Professional car air conditioning service is essential if you notice any of these problems.

Gas leak

If your car starts to smell like gas when you turn on the air conditioning, you most likely have a leakage of gas somewhere within your air conditioning system. When you turn on your air conditioner, the gas aroma will be transferred to the air. That is, instead of just fresh air, the air conditioning system will take in both new air and gas aroma. This can result in a foul smell coming from the vent inside the car and must be traced and fixed as soon as possible to avoid the bad odors.

Dirty Cabin Air Filter

A dirty cabin air filter can also cause a musty odor when you switch on your car’s air conditioning. If the air conditioner filter becomes clogged, it will attract dust, dirt, and other hazardous air pollutants. This can cause an awful smell from within your car, especially once you turn on the air conditioning.

How To Get Rid Of Bad Smell From Car Air Conditioner

Here are a few ways you can get rid of bad smell from car air conditioner-:

Your first step ought to be to pinpoint the discharge tube in your car and make sure it is operational. To avoid any potential further harm to your vehicle, you should take it to a reputable dealership or auto repair shop. If the drain tube would seem to be in good working order, you can rule this out and focus on killing the mold that is present in your car’s AC system as well as blocking future mold from trying to form in the future. Here are some suggestions-:

1.Turn off the air conditioning.

Do this 2-5 minutes prior to actually turning off your vehicle but leaving the fan turned on. This allows the whole AC unit to dry far more extensively each time it is used.

2. Replace or tidy your air conditioner filters.

Dirty air filtration reduces flow of air via your air conditioner and allows moisture to accumulate inside the unit. Replace AC filters as frequently as the manufacturer of your vehicle recommends.
3. Inject an antiseptic into the outside ventilation system (where your car pulls air from outside into the car from). Make absolutely sure your air conditioner is set to flow air from outside in, ensuring that the spray is drawn into the air vents and can actually kill mold and microbes.

Conclusion

If you’ve checked your discharge tube and attempted to remove mold on your own but were unsuccessful, it might be extremely costly for you as you may be required to replace the Air conditioner itself. Bring your vehicle to a reputable car dealer or repair shop as soon as possible and get your car AC repaired. Mold is prevented from growing in the first place by integrating an antibacterial effect into the foam, filters, rubber, and bonding elements of the Car’s Air conditioning system.

Therefore, to keep your car air conditioner clean, one should preserve the car air conditioning unit on a regular basis to make sure that it is in good working order. To avoid damaging your car air conditioner, never overuse it. If your car air conditioning system continues to not function right after attempting the methods outlined above, think about having it replaced with a brand-new unit.