Chrysler 300 water leaking inside back seat driver side near window handle on Chrysler 300

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Chrysler 300 owners report experiencing water leaking inside the back seat, particularly near the driver side window handle. This issue may stem from a hairline fracture in the panoramic moonroof, which has been noted by a Chrysler dealership in similar cases. Additionally, owners have identified clogged tracks around the sunroof as a potential cause for the leaks. Voids in body seam areas, especially at the driver A-pillar, may also contribute to water pooling on the driver side floor. Common culprits for water accumulation in the back seat include leaking sunroofs, failing windshield gaskets, leaking doors, clogged wiper cowl drains, air conditioning leaks, malfunctioning heater cores, and clogged firewall seals. To mitigate these problems, it is recommended that owners inspect these areas and undertake timely maintenance and repairs to prevent further issues.

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