C15 assisted address failure

Hello, I have a friend who has a C15 and the assisted address has been gone. He has taken her to a mechanic and have told her that she can be from the bomb and have given her a very high budget. It could be something else?

If the hydraulic direction does not usually work is the pump culprit, they can be reconditioned or changed either new or of tears, the other possible failure is the hydraulic zipper but that if it is expensive.

GOOD AFTERNOON .!!!!
It could also be toric joints or seals of the direction zipper. Always when the oil level is correct so that it does not take the pump air and it is working, you can be electric (it can have an electrical failure, fuse, pump feeding, connectors, etz) or mechanics, (giving mobility through a service strap, as for example, anternator, Air Air, Etz, Etz) The bomb (blades, which takes air by a joint)
if all that is correct you will have to go to your trusted workshop and replenish
I hope it has been helpful. A greeting

First of all, thank you for your comments ... I have the state looking at the van, riding an electric pump, that is, the direction is hydraulic but the pump works with an electric motor that the feedback (not by service belt). I have verified the reverse that gives it the way and is correct, and also arrives current ... the engine I do not locate it, so I have thought that it can be inside the pump? I do not know what I would have to look in there ... Ah I have also proven that the level of liquid is correct and I have not observed leaks for the pipes or in the assistance cylinder ... well, I think I have told you more or less my inquiries ... if you think of something you do not hesitate to get me out of the dark ... hahaha ... thanks ..

Good afternoon!!!!
I would check loosening little by little, the hose (they are usually conical and do not carry a toric gum joint, but in this model I do not know it exactly) of the output of the pump and if there was a pressure to lose at the moment, because by gravity and with the closed filling plug I would not lose.
You run the danger of staining a little with hydraulic oil.
If he fouls pressure, the dirrection would harden but officially.
If you have no pressure at the exit directly a new pump and if you have a pressure it can be the direction zipper (but it is very difficult and expensive to repair) it is usually also replaced.