Method of mounting a roof panel assembly

A method of mounting a roof panel assembly to a vehicle having a roof opening in a fixed roof to a passenger compartment, said roof panel assembly comprising a frame, a rigid movable panel supported by the frame through an operating mechanism carrying a closed loop frame, enabling the movable panel to move between a panel closed position closing the roof opening and an open position opening the roof opening at least partly, said method comprising:

• mounting the frame of the roof panel assembly to the fixed roof of the vehicle from below and inside the passenger compartment with the operating mechanism and the closed loop frame in an operating mechanism closed position corresponding to the panel closed position of the movable panel;
• providing an amount of paste-like adhering material onto the closed loop frame distributed around a circumference thereof;
• positioning the movable panel onto the closed loop frame from above and outside the passenger compartment with the adhering material interpositioned and thereby substantially plastically compressing the adhering material until a correct position with respect to the vehicle roof is reached;
• keeping the movable panel in the correct position until the adhering material is sufficiently hardened to maintain the movable panel in the correct position;
• wherein the operating mechanism is additionally locked in the operating mechanism closed position with a locking member maintaining a position of the closed loop frame during placement of the movable panel onto the closed loop frame;
• and
• after hardening of the adhering material, removing the locking member.