Is a leaking roof the fault of the 4S shop?

[EllianaMarie]

A leaking roof could be the fault of the 4S shop, or it could be due to the owner neglecting the maintenance of the sunroof during daily use. Below are the specific reasons for a leaking roof: 1. Sunroof leakage: There are generally two scenarios for sunroof leakage—one is blockage caused by small sand particles or dust in the sunroof drainage channel, and the other is displacement or lifting of the sunroof sealing strip. 2. Waterproof seal failure: Leakage usually occurs at the openings of doors or the trunk, mostly due to issues with the waterproof strips, such as deterioration, aging, or breakage of the rubber waterproof seals. 3. Clogged drainage pipes: Blockage of the drainage pipes under the front windshield is the most common cause of water leakage inside the car. Infrequent washing of the vehicle or long-term parking under trees can lead to dust, leaves, mud, and other debris being washed into the drainage pipes by rainwater.