NHTSA Complaint #11679738 — 2013 VOLKSWAGEN TIGUAN

The issue involves ongoing water intrusion through the panoramic sunroof, front power windows, and windshield seals. The vehicle is available for inspection upon request. This recurring leak has caused extensive interior water damage, including visible mold growth in the carpet on multiple occasions. This mold presents serious health risks to both me and my passengers, especially my sister, who is undergoing cancer treatment and has a severely compromised immune system. Water pooling beneath the carpet also threatens critical electrical systems located in the floor area, including the Vehicle Electrical System Control Module (J519), CAN/LIN bus wiring, door control harnesses, and footwell circuits. Corrosion or shorting in these systems could lead to unpredictable failures in safety-critical functions, even if not immediately apparent. Although Volkswagen dealerships have cleaned the sunroof drains as part of routine service packages, no formal diagnosis or confirmation of the leak’s source has been made. Independent mechanics have confirmed clogged drains and flushed debris to restore water flow. In 2019, I replaced the windshield at my mechanic’s recommendation because the interior glass was frequently soaked with morning condensation. Despite these measures, the sunroof continues to leak whenever it rains. No warning lamps or dashboard messages have ever appeared related to this issue. The first visible symptom occurred several years ago—possibly as early as 2019—when water began leaking from the passenger-side sun visor and headliner immediately after a car wash. Given the persistent nature of the leak, the associated mold hazard, and the risk to vehicle electronics and occupant safety, I believe this defect warrants manufacturer accountability and recall consideration rather than a temporary repair.