Did mine last year. It was the heater matrix. It was full dash out. It took me all day to do, but was the only answer. I had used radweld twice, and it lasted about six months the first time, and about 3 weeks the second, so had no choice. Not a hard job to do, just time consuming. just make sure you look at the p.d.f carefully, as there are a few hidden bolts and clips that you can miss if you try to rush it. Good luck if you try it.