Shouldn't you have soft rubber hoses coming off your coolant tank so that you can simply pop it up and set it aside? Early FiST's here in the states were recalled because the hard plastic lines can get brittle and break causing a low coolant/overheating condition that also didn't have a proper sensor to warn us and could cause a fire (hence the actual recall part for safety here). The recall includes converting to flexible rubber lines, adding a proper overheating sensor and a new lower temp 82c thermostat, this was on '14 to early '15 ones here.
As far as the passenger side insert, the stock O ring is crappy; thin and weak, and the bolt for it often breaks, so I did the upgraded bolt at the same time I added my pineapple slice.