S60 2.5T AWD L5-2.5L Turbo VIN 59 B5254T2 (2004)
Drill out the 2 rivets at the front on the underneath of the front spoiler. See: Removing rivet .
Use a weatherstrip tool to detach the front spoiler from the bumper cover.
Hint: If the spoiler is difficult to remove, use a hot-air gun and heat gently.