How to Clean the Door Drain Holes?

[DelEmiliano]

The method for cleaning the door drain holes involves using a syringe with a catheter for injection cleaning. Below are the relevant details: 1. Precautions: When cleaning hidden hoses such as those in the sunroof, avoid using hard objects like iron wires to unclog them, as these can cause the hoses to break or detach. Compared to other components in the car, the drainage holes, which are simple in principle and seemingly insignificant, are often overlooked. However, these small drainage holes can frequently cause significant trouble for vehicle use. It is entirely possible to inspect them regularly and address these minor issues promptly. 2. Drainage Outlets: Apart from the sunroof drainage holes connected to hoses for drainage, the drainage outlets in areas like the doors and front/rear tail lights generally discharge directly through the drainage channels inside the doors.