Where is the car air conditioning drain located?
2 Answers
Car air conditioning drain is located at the bottom of the evaporator box, connected to the chassis through a hose. When the car air conditioning drain is blocked, water will enter the footwell on the passenger side through the connection and soak the floor mat. The function of the air conditioning drain is: during air conditioning use, the evaporator box continuously absorbs heat from the surrounding air, causing moisture to condense into water, which is then discharged through the air conditioning drain. The condensed water from the car air conditioning is produced during the cooling process, and the condensation pipe is located below the chassis. Other drainage outlets on the car include: 1. Engine compartment drain hole; 2. Sunroof drain hole; 3. Fuel tank cap drain hole; 4. Door drain hole; 5. Trunk drain hole.
With decades of experience in auto repair, I can tell you that the car air conditioning drain outlet is typically hidden underneath the chassis, near the front passenger seat area. For most sedans, it’s tucked beneath the front passenger seat—a small hole or tube opening. The exact location varies by model; SUVs may have it higher up near the front axle, while sedans often position it around the floor hump. This drain is crucial for releasing condensation from the AC system. If clogged, water can backflow into the cabin, soaking carpets and potentially causing mold or electrical damage. I’ve seen many owners overlook this, leading to foul odors. Maintenance is simple: periodically check beneath the car after parking to spot water trails, and use a thin wire to clear blockages—ensuring smooth drainage prevents bigger issues.
