Tire Valve Problems of Volkswagen Routan

2009 Volkswagen Routan. Consumer writes in regards to replacements of tire valve stems. The consumer stated within the last ten months, she had to replace the valve stems and tire sensors three times due to disintegration of the valve stems, twice on the right front tire. The first time the incident happened, the low tire pressure light illuminated. The consumer stopped and checked the tires. The right front tire appeared to be low. When she attempted to attach the air hose, the tire immediately went flat and the valve stem sucked into the tire. The second time, the low tire light illuminated, she stopped and observed the right front tire was low. The tire was going flat, as she approached the service station. Aaa removed the cap to the valve stem which disintegrated immediately. The slow leak resulted in the consumer having to purchase a new tire, valve and tire sensor. The third time, the tire light illuminated again. It was determined the valve stem was leaking . The consumer was informed the replacement of the valve stems was a frequent occurrence, the metal valve stems were apparently inferior to traditional rubber stems.

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While putting air in my tires, the valve stem broke off of the tire while trying to remove the cap off of the stem and the tire deflated almost instantly. After looking at the broken valve stem, it appears like the cap and stem became corroded and was completely welded together. I still have this cap that broke off if it is needed for an investigation.