Where Does the Air Conditioning Water Leak in a Small Car?

2 Answers
ConnorMarie
09/06/25 4:52am
Car air conditioning dripping occurs at the chassis position beneath the air conditioning unit. The water dripping from the car air conditioning is condensed water from the condenser. The air conditioning drain outlet is generally located at the lower part of the evaporator box and connected to the chassis via a hose. Once the air conditioning drain outlet is blocked, water can enter the footwell on the passenger side through the connection, soaking items like floor mats, which is easily noticeable by the owner. Relevant information about the air conditioning drip outlet is as follows: 1. Introduction 1: The function of the air conditioning drip outlet is to drain the water condensed from the surrounding air during the heat exchange process when the air conditioning is in use. 2. Introduction 2: This is also why there is a puddle of water under the car after the air conditioning has been running for a while. New car owners may suspect a car leak when encountering this situation, but there is actually no need to worry.
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MacMakayla
09/18/25 4:46am
When I drive my car, I notice that the air conditioning water usually leaks out from a plastic tube under the car. This is the condensate water produced during the normal operation of the air conditioning system, as water vapor condenses into droplets when the evaporator cools the air and is then discharged outside the car. The location is generally below the firewall or near the gear lever—if you look under the car, you can see a thin tube hanging down. If the water leaks onto the seats or carpets inside the car, it might be due to a clogged drain tube, such as leaves or dust blocking the tube opening, causing backflow. My friend’s car had this issue once, and it caused a musty, unpleasant smell. Later, he used a vacuum cleaner to unclog the tube and fixed the problem. Remember to check for water stains under the car after parking—normal dripping is a good sign, indicating the system is working. When washing the car, take the opportunity to blow out the drain holes to avoid blockages that could lead to bigger issues. Although air conditioning leaks seem like a minor problem, ignoring them can lead to moisture inside the car, which may corrode parts or breed bacteria, resulting in higher repair costs.
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