Table 1 shows one common equipment related problems of the 2021 Audi A6.
| Problem Category | Number of Problems |
|---|---|
| Equipment problems |
My 2021 Audi A6 produces a strong mold and mildew odor from the hvac/air conditioning system. The smell occurs consistently after the air conditioning is turned off and persists when entering the vehicle. The issue appears to originate from mold growth on the evaporator coil or dampers, likely caused by moisture accumulation and inadequate condensate drainage in the hvac system. The vehicle was inspected and treated at an authorized Audi dealership; however, the treatment did not resolve the issue and the odor returned. Online owner forums and communities document the same problem across multiple Audi models and model years, suggesting this is a systemic design or manufacturing issue rather than an isolated incident. A passenger in the vehicle — a minor child with a documented mold allergy — has experienced allergic reactions as a result of exposure to the vehicle's air conditioning output. This constitutes a health and safety concern. The mold contamination in the hvac system poses a risk to vehicle occupants, particularly those with respiratory conditions or mold sensitivities. I am requesting that NHTSA investigate whether a defect exists in the hvac/evaporator system design across Audi vehicles, and whether a safety recall or technical service bulletin is warranted.
The car has had multiple issues with warning lights and malfunctioning systems. Including : 1. Child locks 2. Every single component of the adas 3. Emergency services being activated at least a few times a month - this is an sos for emergency 911 service. The repeated, continuous and mostly false warning lights are a driving distraction that can easily cause an accident. I have photos of all warning lights coming on in the vehicle. The dealership has repeated stated that they couldn't reproduce the problem even though pictures were provided and the car is still under the original warranty period. The latest attempt to fix the vehicle was to replace the sensors on the front of the vehicle. This solution was only attempted after the 4th report of the problem to the dealership where the car was serviced under the original manufacturers warranty.