There is a bypass hose running off of my upper radiator hose, and I do not know what to call it in order to buy a new one. The hose has been getting rubbed by my fan and has a hole in it, and it is leaking coolant. The guys at autozone were very helpful, but nonetheless they didn't know what to call that hose to order a new one. I figured you guys were the people to ask. I am so not trying to have my car towed all the way to the next town over and stay with the VW specialists for two weeks to have a hose fixed when I could most likely do it myself.