hi you just have to pul it apart quiet hard ,but it wont break it well i have changed 3 and never broke any then the fob will split apart its a bit of a git to get the battery out ,but persit and you will do it but be carefull when you pull the key apart as there is a immobilizer chip in the key in the front part on the plastic that will stay with the key be sure not to knock this of as there hard to find ,as there only little and if you lose it the car wont start hope this helps its easyier than it sounds phill
phill, November 2009
