Why is there water dripping from the car chassis in summer?
2 Answers
It is the condensate water from the air conditioning system, which is a normal phenomenon. 1. Identification method: The reason for air conditioning water is that the temperature of the evaporator box in the air conditioning system is low, causing the hot air inside the car to condense into water droplets, which then flow out through the drain pipe. In case of a radiator leak, water is usually found under the radiator, i.e., between the front bumper and the engine of the car, and the car's dashboard will generally issue a warning. 2. Chassis: Usually refers to the car chassis, which is the main frame of the car's underbody. All the power components of the vehicle, including the engine, transmission, differential, and suspension system, are installed on the chassis. The chassis is composed of four parts: the transmission system, the running system, the steering system, and the braking system. It supports and installs the car engine and its various components and assemblies, forming the overall shape of the car, bearing the engine power, and ensuring normal driving.
In summer, I often notice water dripping under my car, especially after using the air conditioning. This is the normal drainage from the AC system. When the car's air conditioning cools, the evaporator produces condensate, which flows out through a dedicated tube under the chassis to prevent moisture inside the cabin. The exhaust pipe may also drip water, a natural phenomenon caused by condensation of water vapor after combustion, usually indicating the engine is working well. However, if the dripping occurs in unusual locations—such as under the front of the car where the AC system isn't located—or if the liquid is blue or green with a sweet smell, it could signal a coolant leak, requiring immediate inspection at a repair shop. During high summer temperatures, this issue may occur more frequently. Regular AC maintenance and cleaning the drainage tube can prevent blockages that might cause internal leaks.
