Xsara Picasso

Hello friends, I have a problem with an Xsara Picasso Motor 2,000 of the year 2001 it turns out that the car started with self -ranks and was perfect until good matches and it was put in a limited mode and 3,000 laps did not pass later it stopped it and did not start again by itself nothing more than with self -arranque left it parked a whole week and I gave it and I started starting for themselves again. The fuel pump changed the camshass sensor The crankshaft sensor The flow and the car still did not start the cable cable the control unit and I only failed the negative that goes to the box of heating nevertheless it takes it to the Citroen there they told me first that I would cost me about 550 euros and that they were going to walk the flow of the I though I told him that I told him that I already did all that and it did not turn out that I took the car since the uncle went to where I was going so I already knew that this would not be good then then at two weeks I took another person to the citroen again and there they did not tell him what it was but if they told him that some 2,500 euros were going to come out so that the car was taken to another work It was changing all the wiring but also the car is still not start