Hi Guys, I have an issue with my 2012 (face-lift) Prius 170k miles. It's happened twice in the last month. Difficult to describe but I have attached a pic. The coolant leaks from the weld. Initially happened a month ago. Replaced with another exhaust middle box (welded from cat to back box). No leak for over two weeks then again last night the leak started again. Mechanic can't work out what's causing it! Wondering if anyone has come across this before?
Can you confirm it's seeping from that spot, ie not from somewhere above and then just trickling down to there? moto g(7) power ?