Tire Valve Problems of Audi A4

I am reporting a serious vehicle safety incident involving my 2018 Audi A4. On October 12, 2026, while traveling from south carolina to north carolina with my two-year-old son in the vehicle, all four tire valve stems failed during a single interstate journey. The first failure occurred on the front-left tire, causing nearly instantaneous tire deflation. After an emergency repair, I continued driving, but the remaining three valve stems subsequently failed in succession. Each failure created a potentially dangerous situation involving sudden tire-pressure loss. A tire technician observed significant cracking and deterioration of the rubber valve stems. The remaining stems were reportedly so deteriorated that touching them could cause air leakage. Four brand-new tires had been installed by Audi bethesda in maryland in December 2024. The technician suggested that the valve stems appeared substantially older than the tires and might not have been replaced during that installation. I retained one of the failed valve stems, which has visible cracking at its base. I am particularly concerned that four separate valve stems failed during the same trip, repeatedly exposing my family, including my two-year-old child, to potentially catastrophic tire failures. I request that NHTSA document this incident and assess whether it indicates a broader vehicle equipment or tire valve stem safety concern. I can provide additional photographs of the failed component, repair documentation, and service records. Vehicle: 2018 Audi A4 incident date: October 12, 2026 previous tire installation: Audi bethesda, December 2024 number of failed valve stems: four reported injuries: none.

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The consumers vehicle had two tire failures within the last eleven months for no apparent reason. The manufacturer stated that they did not know why he was having tire failure. Michelin, primacy, size is 235/4517. On June 24,2004, the consumer noticed a loss of tire pressure which was about 1lb or 2 every month. The problem was unable to be figured out. While replacing the valve stem, along with placing the tire back on the rim while trying to re-inflate the tire, the inside wall of the tire blistered. The vehicle was unsafe to drive. The tire was sent to michelin for evaluation. There was a tiny leak in the tire, but that wasn't enough to cause the blister, reevaluation could not determine why the tire blistered. The replacement tire failed on 5-25-2005 while in a parking lot and the tire wall began to separate from the tire. America tire company analyzed the tire, and no cause for the tire failure was determined. Also, this tire was sent for evaluation and the consumer has not heard anything yet. He tried to find out from tire manufacturer and Audi about the recalls, and they would not provide any information.

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