My experience is with replacing the high pressure line. Do you intend to do this repair yourself? If so, you are going to need at minimum two jack stands and a floor jack. A lift would make things easier. You need to identify exactly what is leaking by getting under the car and have someone turn the steering wheel back and forth with the wheels off the car. This will make a mess. A large plastic tarp and lots of shop towels will help. It is a very cramped area to work in. Unfortunately I cannot identify the part in your photo. HTH.