ah !! obviousley a later model than my 1998 ? if only 2 terminals ! didnt know about the mod volvo made to prolong the life of the bulb but im sure clan will be not far away from nailing it ?? he's pretty clever :-)
check this
http://www.volvoforums.org.uk/showthread.php?t=68877
similar problems but an earlier model i think ?? i didnt read all the comments !
good luck bowdi
regards wayne