......................... I called Volvo Customer service and they said that they have not had any reported incidences for the xc60 but did have issues with the s60 and s80 where the sunroofs would shatter. In other words they are not accepting responsibility for the xc60
Big, frickin surprise. For the mfgrs De Nile ain't a river. Toyota and Lexus denied issues with UA, Mfgrs also denied air bafg issues and on and on. Until NHTSA goes after thme or it hits the news there is a problem. A few years ago i had an issue with a Volvo sunroof exploding under the blower. My guy called me and the customer had called the cops. I faxed over some internet printouts baout the issue.
Lets face it. Whatever in your wash contacted the sunroof, it also contacted the rest of the roof, as well as the roofs of all the other cars being washed and I assume there were no marks on the Volvo roof or other cars. Something did not mgicaly appear at the exact moment to damage the Sunroof never appearing before or since.
Reminds me of a customer with an isolated mark, who when i pointed out the same equipment does the entire car said "Maybe there is something flying around in there".
Tell them it's unfortunate that they noticed the mark ithe crack after your wash but the physical evidence conclusively establishes via the abscence of any marks that the issue was not caused by your wash.