I have a 2011 rrs sc. I bought it used 4 years ago and got its full service history by asking the dealer. It had 145,000 km / 90,000 miles on at the time and had been through 3 water pumps by then. I drove it for a year and started losing coolant so I did it myself with a $153cad one from rock auto with new oil cooler tube seals and got a year out of it before those seals went. So for number 5 I went with an LR one just over a year ago with new lr seals . The crossover piles which I think you are referring to are aluminum in the SC version as opposed to the plastic ones - I think - in the non sc. I did have to replace an o- ring that was leaking at a joint in those pipes but I got lucky in that it was easily accessible and cheap. From what I understand the water pump issue is fairly normal. If you can hear a metallic noise you should be able to feel play in the pulley on the end. It could also be the fan contacting the fan shroud . Mine makes a metallic click on start up in the cold weather only that I believe is something to do with the viscous fan assembly. It has done it for 3 years and goes away after a few minutes in the cold and not at all once it’s warmer so I just leave it.