What Causes Water Under the Front Passenger Foot Mat in a Jetta?
1 Answers
Water under the front passenger foot mat in a Jetta can be caused by several factors, including a leaking sunroof drain pipe, door leakage, clogged engine compartment drain holes, or driving through flooded areas: Leaking Sunroof Drain Pipe: Check if the sunroof drain pipe is clogged. Fully open the sunroof to reveal a groove. Slowly pour water into this groove (the sunroof drain pipe) to see if the water drains properly or is blocked. Door Leakage: During daily parking, leaves or small pieces of paper may accumulate near the windows. If these debris enter the door and clog the drain holes, the door's drainage function will be affected. If the door drain holes are clogged, the door may need to be disassembled for cleaning. Clogged Engine Compartment Drain Holes: Although the engine compartment is not directly exposed to rain, a small amount of rainwater can still enter during wet weather. Additionally, water may flow into the engine compartment during routine car washes. If the engine compartment drain holes are clogged, this water can seep into the car interior. Driving Through Flooded Areas: If the vehicle drives through deep water, the accumulated water may enter the cabin. This issue must be addressed promptly to prevent mold growth or damage to wiring harnesses and control units.
