vy storm overheating problem

[vk202]

hi guys
ive got a leak coming from some coolant lines underneith the brake booster. three hoses go into a plastic junction not sure what it does could any one help at all. it doesnt look like its leaking too much but the motor is always overheatin???

[PaulSV6]

It doesnt take much of a leak for the eng to start overheating.
Could be a crack in that junction piece, have u had a closer look at it?