No more fords

My 2012 Ford Edge sel awd had a ptu seal leak at 5000 miles and I took it in to dealer twice before dealer found leak(can't find any leaks) well the edge now has 2200 miles and has been back to dealer 7 times! With seals replaced each time. Ford dealers service manager never heard of problem, told him to google the problem and he did,then he said oh look there's a forum . Said he did'nt have time to read it and read it later. I doubt he will and I don't trust him, dealer or ford!!