What Causes Water Leakage in the Car's Passenger Side Vanity Mirror?

[DiCayden]

Reasons for water leakage on the passenger side: 1. Condensation pipe issue: The condensation pipe above the left foot area of the passenger compartment becomes too cold, causing water droplets to form when exposed to air. 2. Short air conditioning drain pipe: Water discharged is blown by the wind onto the car's floor mat, which over time soaks the mat and leads to leakage. 3. Clogged sunroof drain holes and guide pipes: When parked under trees, debris like pine needles can get stuck in the sunroof gaps and eventually fall inside, blocking the drainage system when washed to the end. 4. Aging seal rubber in the filter box: Seal rubber has good heat resistance, oil resistance, and strong mechanical strength, making it widely used in the transformer industry. However, in recent years, premature aging issues such as softening, hardening, cracking, and loss of elasticity have frequently occurred due to poor anti-aging properties of the seal rubber, leading to excessive swelling of transformer seals.