Hood Latch problems of the 2003 Volkswagen Passat

I've spent over $8000 towards vw dealership attempts at fixing the horn, radio, homelink, climate control (a/c and heat) rear passenger side window, heated seats, dashboard panel lights, and defroster flap. Vw replaced abs and brake light module, but only fixed the horn. Vw stated they are not responsible even after I paid for them to fix the above problems and they are still unable to determine the cause of the problems. I request reimbursement from Volkswagen for the repair attempts and related expenses. Current vehicle mileage: 127,000.