Lincoln MKS water accumulation on passenger side, possibly due to clogged drains on Lincoln MKS

Some Lincoln MKS owners report experiencing water accumulation on the passenger side, particularly during or after rain, often due to clogged drains. Common issues include clogged vents under the engine compartment, which can lead to water pooling on the passenger side, and a blocked AC evaporation drain that causes water to collect on the floorboard. Additionally, some owners have noted that a clogged sunroof drain tube can overflow, allowing water to enter the vehicle and create wet floors. Leaks in the upper windshield seal have also been reported, permitting rainwater to seep into the interior. To resolve these problems, it is recommended that owners check and clean the sunroof drain tubes, clear blockages in the AC condensate drain line, and inspect the upper windshield seal for leaks to prevent further water ingress.