Volvo C30 2007 Service And Repair Manual page 340

ACCESSORIES AND BODY, CAB Interior - Installation Instructions, Accessories
Fig. 35: View Of Seat Runner Screw
Courtesy of VOLVO CARS CORPORATION
Remove the seat wings on the left side by using a screwdriver to pry between the wings and the seat rail
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while guiding the wings rearward. Do the same on the right side of the seat.
Fig. 36: View Of Eyelet Through The Square Hole
Courtesy of VOLVO CARS CORPORATION
Fit the eyelet through the square hole on the left seat wing. Do the same on the right side.
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2012 Volvo C30 T-5