I was visiting my local repair shop the other day, and they diagnosed a slow leak from the radiator as being at the seam, between plastic and metal - said this is the end for that radiator. This is an 07 XC70, and they said there's 5 hours labor getting the radiator out - that you have to take off the bumper to get to it. True? I'd take a crack at it like any other radiator, but not sure what I'm getting myself into here if I try.