When washing my car yesterday I noticed a brown stain at the join between the roof and the rear quarter panel, ( the top corner off the boot lid points right to it). when I cleaned it off I found a hairline crack in the end of the weld on the joint. I'll keep an eye on it and if it continues to weep rust it's back to the dealers. Can anybody let me know if they see anything similar. Don't even want to think about how a dealer would fix this as they would have to grind out and reweld and it's not an easily accesible area.