WARNING: This page is about a different car, the 2001 Subaru Outback and 2001 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
Remove the two clips and lower the mudguard.
Fig 1: Removing Front Fog Light Assembly Clips (Except Outback)
Remove back cover (A).
Fig 2: Removing Front Fog Light Assembly Back Cover (Except Outback)
Disconnect harness connector.
Remove spring retainer then detach fog light bulb.