Had a bit of a grueller today fitting new front brakes hoses. Plenty of seized stuff Whilst under checking around as you do, i noticed this old hose connected to the front part of the brake servo set up, what does it do?, it's not the servo hose, that's the other end behind the servo.
It’s the breather, should end up going through a hole in the inner wheel arch so it doesn’t get full of crap!
This has answered one of my questions. I saw a pipe going from servo to the left side front wheel arch but couldn't figure out where it exited Sent from my SM-G981B using Tapatalk