I am filing a complaint regarding an ongoing and unresolved HVAC odor issue affecting my 2023 Porsche Cayenne S Platinum Edition. Since shortly after taking ownership, the vehicle has consistently produced a strong mildew/musty odor after sitting for several hours. The odor is most noticeable upon startup and only dissipates once the air conditioning system begins circulating. The vehicle has been in and out of the dealership multiple times for diagnosis and repair attempts, yet the issue remains unresolved. Despite the vehicle remaining under the original manufacturer warranty, the dealership has refused to replace the evaporator coil, which I believe to be the source of the issue. The persistent odor negatively impacts vehicle usability and raises concerns regarding potential mold, bacteria, or HVAC contamination within the system. I am requesting further investigation into this issue and Porsche’s handling of repeated unresolved repair attempts under warranty.
NHTSA ODI 11740501