hey amirboom their are a couple of things that can go wrong first well i am not shure if the cable that does from the battery to the power distribution box has a fusable link. if it does not that's going to need a new one and then for the rest it does have them. u need to get ur hands on a wiring diagram and locate the fusable links but first see if there r some in the cable that goes from the battery to distribution box mmm 1500 euros is 2000 dollars almost r u planning on doing this ur self because other wise u pretty much r going to have to trust them on that one it sound like a right price see if they r going to replace ur battery for that price because you are going to need a new one hope dis helps