RepairPal Certified shops can diagnose and repair your 2002 Volvo S60. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
These systems are quite complicated to diagnose and fix...I would trust this to a shop with a lot of Volvo experience...you can call some of these and ask if they've worked on the sunroofs before: http://repairpal.com/volvo-within-10-miles-of-washington-district-of-columbia-20015
