What Causes Water from the Passat's Air Conditioner to Leak into the Car?

[VanWalker]

Here are the specific reasons why water from the Passat's air conditioner leaks into the car: Improper Installation: Air conditioner leakage may be due to improper installation of the unit. If the indoor unit is tilted or the pipe port direction is too high, it can cause leakage. It needs to be adjusted at a repair shop. Poor Drainage Pipe: It could be due to a poor drainage pipe, usually caused by a loose or wavy-shaped pipe, leading to poor drainage. This requires repair. Pipe Condensation: Condensation on the pipes may occur if the insulation material on the pipes is of poor quality or too thin. When refrigerant passes through the pipes, it can cause condensation. Consider replacing the pipes.