Why Does a Car Drip Water After Stopping in Winter?

[Lopes]

The reasons for water dripping after parking in winter include condensation water produced by the air conditioning system and leaks of coolant or windshield washer fluid. It is normal for water to drip from the muffler and exhaust pipe at the rear of the car, and this phenomenon mostly occurs in winter. Gasoline is injected into the cylinder and mixed with air, and after full combustion in the combustion chamber, it mainly produces carbon dioxide and water. The water is discharged into the atmosphere in the form of water vapor at high temperatures. The condensation water produced by the air conditioning system mainly refers to the fact that when the air conditioning system is working, it compresses the air, thereby generating condensation water that leaks from the air conditioning filter. This is a normal phenomenon. However, if there is too much water leakage from the air conditioning system, it indicates a malfunction in the car's air conditioning system, including abnormal operation of the compressor or damage to the condenser. In such cases, the system should be dismantled for a detailed inspection. Leaks of coolant or windshield washer fluid mainly refer to situations where the car's undercarriage is accidentally bumped when passing over uneven road sections, potentially damaging the delivery pipes of the coolant or windshield washer fluid and causing leaks. In such cases, the vehicle should be lifted for inspection and repair at a repair shop or 4S store to avoid unnecessary waste.