I'm guessing it's leaking cause mine has the same problem. Not a huge leak, just the hose is wet. The problem you'll have with replacing it is the end that connects to the rack. It's not just a hose clamped down, it has the metal fitting. There are places that redo lines like that, just take the metal fitting and tell them how long of a hose, what it's for and they can do it cheap. don't know where you're from but there's bound to be a shop like that around where you live. definitely cheaper than a new hose from the dealer, but to each their own way of fixing things.
///M The most powerful letter in the alphabet