So my 2013 with about 135000miles is definitely leaking at the coolant valley - pink crusties on the bellhousing and losing coolant. I think i've had to put around 2 liters in over about 10 000km (6000miles). Winter is a fast approaching and i don't think i'll have the time to get it repaired before then. Think it is okay to drive through the winter (maybe about 5000km) and i just keep an eye on the level? No issues with over heating thus far. I am just concerned with the coolant itself leaking onto electronics or something.