Car door rubber seal leaking
A wet carpet edge, wind noise at speed, or water beading on a sill usually points to a car door rubber seal leaking. The weatherstrip is a compressible barrier designed to close the gap between the door and body, but age, compression set, tears, misalignment, and debris can break that shield. Because the leak may come from the primary door aperture seal, an inner belt molding, or a blocked drain path, the fix depends on separating seal failure from door fit. A careful visual and water-path check narrows the cause before any material is replaced.
Direct answer
A leaking door rubber seal is most often caused by a torn, flattened, or dislodged weatherstrip, but the door itself may simply be out of alignment or have a blocked drain. Start by looking for obvious cuts, crushed sections, gaps at the seating groove, or a seal pulled away from its retaining clips. If the rubber appears intact, run a gentle hose test from the bottom upward and watch where water first appears inside; that path usually identifies whether the leak enters at the glass run, the lower door rim, or the primary body opening.
The key distinction is between sealing and drainage. Door weatherstrips are not intended to make the cabin waterproof by themselves; water that gets past the outer belt molding should drain through the bottom of the door shell. A wet interior after rain can therefore mean the lower drain holes are plugged and water is spilling over the inner seal, not that the door rubber itself has failed. Moisture at the top of the door frame, by contrast, often indicates a loose seal, a bent hinge, or wear at the compression fit near the roof rail.