What Causes Water Dripping Under the Steering Wheel?
1 Answers
Water dripping under the steering wheel or chassis of a car is usually caused by condensation formed when using the air conditioning system. This water may flow down the vehicle's exhaust pipe, leading to leakage under the chassis. Below are the common reasons for water dripping in cars: 1. Exhaust Pipe Dripping: When combustible mixed gas burns in the engine cylinders, it produces carbon dioxide and water. Water vapor emitted from the engine condenses into liquid water after passing through the catalytic converter, muffler, and exhaust pipe. Under the airflow generated by high-speed engine operation, the liquid water is expelled with the exhaust gases, resulting in dripping or spraying from the exhaust pipe. 2. Body Drain Hole Dripping: There are gaps and layers between the car body and chassis panels. To prevent rainwater accumulation and rust, drainage holes are designed in certain areas to allow rainwater and melted snow to drain quickly. Drainage holes are typically located near the windshield wipers, where rainwater flows out through guide plates. 3. Air Conditioning Drain Pipe Dripping: During summer, air conditioning usage is frequent. When the AC operates, condensation forms in the evaporator box. Normally, this condensation is drained outside the vehicle through a dedicated pipe. If the drain pipe is blocked or bent, water may leak into the footwell instead of draining properly.
