Volvo C30 2007 Service And Repair Manual page 187

ACCESSORIES AND EQUIPMENT Bumpers And Mudflaps - Installation Instructions, Accessories
Fig. 132: Riveting Skid Plate In Outer Ends
Courtesy of VOLVO CARS CORPORATION
Take the rivets from the kit and rivet the skid plate in the outer ends.
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SKID PLATE, FRONT BUMPER (2010-11)
SKID PLATE, FRONT BUMPER
Fig. 133: Identifying Spring Nuts
Courtesy of VOLVO CARS CORPORATION
Take the spring nuts from the kit and press them into the bumper cover.
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2012 Volvo C30 T-5