Originally Posted by mleskovar
Once you get the tire goo into your tire pressure sensor and tire air valve they are history and need to be replaced. The goo/sealant makes a mess and is not easy to remove. If left in the tire it can solidify or freeze and cause tire balance problems. Ask your tyre supplier what they think of the sealant. But to each his own.
I would think (hope?) that the BMW Mobility Kit would not damage TPMS or the valve, since it's from BMW...