Replaced both bulbs on My 2007 Aurion Presara this morning, as everyone was bit worried about removing bumper bar to access head light assy. so thought will try to unscrew the cover behind assy and try to change but no it wasnt that easy to do that because there is not enough space to actually get a screwdriver or ratchet in there , so decided to remove bumper bar, had a look at the forum and there are some good step by step guide to remove bumper bar in this site, so followed it , make sure that you don't pull the bumper way too far out because presara got a head lamp washer system and fog lamp cables don't damage it while removing bumper bar, reomved bumper bar and then removed headlamp assy the unscrew 4 screws behind the assy and remove the high voltage connector and then remove bulb be careful when you do this because there is a high voltage ballast there supplying power to these bulbs, so ignition must be off and head lamp switch to off position and i suggest to pull battery ground for safety. replaced bulbs and put back together and tested it before putting the bumper bar back and it all works sweet. Toyota dealer quoted me 480 per bulb + fitting charges and i bought bulb from ebay (http://www.ebay.com.au/itm/251255510442) 120$ including shipping and so far am happy. this ebay seller seems to have pretty good seller history that's why i decided to buy from him