I have Touran Highline made in 2022, I realized, that I have no signalization of empty washer tank. First I thought its not working but after callling to car dealer, he told me, that VW is not mounting sensor (or cabling) due to cost saving!? lt seems very strange to me, because this should cost less than few euros. Even in manual there is signalization LED of empty washer tank. Have you somebody the same problem?