Nissan Altima sunroof drain leak causing water to accumulate on driver side floor due to pinched drain line at firewall on Nissan Altima

Some Nissan Altima owners report experiencing water accumulation on the driver side floor due to a sunroof drain leak, often caused by a pinched drain line at the firewall. This issue frequently results in water entering the vehicle from the A pillar and under the dashboard. Many owners attribute the problem to blockages in the sunroof drainage tube, particularly at the sunroof drain connectors. Regular maintenance of these drains is essential to prevent clogs from debris that can lead to leaks inside the car. To diagnose the leak, it is advisable to check the sunroof drains for blockages, especially after rainfall. In cases where significant water is present, thorough cleaning and drying of the affected area may be necessary to prevent mold and mildew growth. Addressing this issue promptly is crucial to avoid further leaks and interior damage.