
Mercedes-Benz GLC door squeaking reasons: aging of the door sealing rubber strip; friction between rubber strips. Here is the relevant introduction about Mercedes-Benz GLC: 1. Introduction: The Mercedes-Benz GLC can essentially be regarded as the coupe version of the GLK. 2. Power Parameters: In terms of power, the new car will include multiple power configurations. Among them, the gasoline engine is expected to offer three power options: 1.8T, 2.0T, and 3.0L V6. 3. Space: When the rear seats are fully folded down, the transition is smooth, with a long engine cover and 5 driving mode options. The GLC offers more spacious seating and storage space than the previous generation model.

My GLC has been driven for several years, and the doors have started to squeak. Usually, it's due to the aging of the sealing strips, which shrink in cold weather and rub against the door frame, causing a squeaking sound. Alternatively, the door hinges might lack lubrication, leading to rust over time, resulting in a creaking noise when opening or closing the door. Another possible issue is a loose door lock mechanism, especially in high-end cars like Mercedes-Benz, which have many electronic components. The sensor connectors might not be securely fastened, causing vibration and noise. I suggest starting with the simplest solutions: use a spray lubricant on the hinges and lock points. If the noise persists, check if any clips on the interior trim panel have come loose, causing vibrations. During regular maintenance, ask the mechanic to pay special attention to these areas. Don’t ignore these issues, as they can affect the car's sealing and noise insulation.

There are several common causes for door squeaking: friction noise due to hinge wear or rust; hardened or deformed door seals, especially noticeable after frequent opening and closing; displaced interior soundproofing materials causing collisions; and loose door lock modules also causing issues. In the Mercedes-Benz GLC, electronic system failures such as faulty lock sensors can exacerbate the noise. As a car owner, I recommend first identifying the location of the sound during self-inspection—whether it occurs when opening/closing the door or while driving. If the noise occurs while driving, it might be more serious, possibly involving the suspension or door structure. It's crucial to promptly visit a professional repair shop for diagnosis to prevent minor issues from escalating into major problems.

GLC door rattling is mostly caused by aging and shrinking rubber seals, which create friction noise due to thermal expansion and contraction. Alternatively, it could be due to unlubricated door hinges causing rough operation. I've found that simply spraying silicone grease often solves the issue. In severe cases, it might be caused by loose interior trim or improperly secured wiring harnesses. Address it early to prevent the rattling from worsening and causing door deformation.


