Is the roof leakage a problem with the 4S shop?

[Duarte]

Once the sealing ring ages and is not maintained or replaced in time, it will affect the sealing performance of the sunroof, leading to leakage. This is not a quality issue. The following is related content about roof leakage: The roof itself does not leak; the actual leakage point is the sunroof’s drainage pipe being blocked. The head of the drainage pipe is located in the engine compartment and runs down the A-pillar. First, check whether the drainage outlet is clogged with dust—most sunroof leakages are caused by blocked drainage outlets. Sunroof maintenance: There are no special requirements for daily maintenance of the car sunroof. Just regularly check whether the surrounding sealing strips are damaged and inspect the lubrication condition of the tracks. If the cause cannot be identified, it is recommended to go to a 4S shop or repair shop and ask a technician to pour water on the sunroof to test and locate the leakage point before repairing it. Preventive measures can also be taken in advance. Before the rainy season, in addition to cleaning dust from the gaps in the sliding tracks and sealing strips, a small amount of plastic protective agent or talcum powder should be sprayed on the sealing strips and other components. During regular car washes, also check whether there is dust, leaves, small branches, or other debris in the sunroof’s rubber strips and grooves.

[JudahAnn]

I've encountered roof leakage several times during car use, and this issue isn't necessarily the 4S store's responsibility. Common causes of roof leakage include aging sunroof seals, clogged drainage pipes, or cracked body welding points. If the car is new and still under warranty when leakage occurs, the 4S store may be obligated to provide free repairs as they promised overall vehicle quality when selling the car; however, if leakage appears after several years of use, it's more likely a daily use and maintenance issue - like last time when I forgot to clean the sunroof myself, causing drainage holes to clog. As professional service centers, it's natural for 4S stores to provide inspection and repair services, but the leakage itself might be caused by owner negligence or natural aging. I recommend first checking the sunroof operation yourself, then contacting the 4S store to identify the source and prevent the problem from worsening and damaging the interior. Overall, whether leakage is the 4S store's responsibility depends on the vehicle's condition and purchase time - don't rush to blame, handle it rationally.

[AugustRose]

Whether a leaking roof is the 4S store's issue requires specific analysis. In most cases, leaks stem from vehicle defects such as deformed sunroof guides, failed sealant, or poor post-accident repairs. If the leak occurs shortly after purchasing the car from a 4S store, they should be responsible for warranty and free repairs. Conversely, if the car is old or the leak was caused by modifications done at other shops, the 4S store is not liable. As a car owner, I've seen similar cases and recommend immediately stopping to check the leak point, temporarily using a towel to absorb water to prevent electronic component corrosion. Then, contact the 4S store for a professional diagnosis—they can test water tightness and fix the leak. While leaks are frustrating, don’t directly blame the 4S store; the key is to review maintenance history and warranty terms and act promptly.

[MacCassidy]

Roof leakage is not necessarily the fault of the 4S shop. It is often caused by clogged sunroof drains, degraded body seals, or inadequate post-accident repairs. For new vehicles, the 4S shop must fix leaks, but older vehicles may require out-of-pocket repairs. We recommend prompt inspection to prevent interior damage.