Read the owners manual for my 2006 XC70 and studied the diagram for replacing the low beam bulbs. I found that the manual is incorrect and apparently there was an upgrade or change. Some years ago the dealer replaced the wiring harness due to a problem with the old harnesses overheating. Perhaps that is why the actual mounting of the bulb is different from the manual.
Anyway I gave up trying to do it myself and took it to the dealer. Both low beams replaced for $75.00.
2006 XC70 Ruby Red, mfg 03/06 (traded)
2005 S80 Ash Gold, mfg 11/04
2016 XC60 T6 mfg 04/15