If its the same as mine (X Reg Year 2000) There are 2 nuts 8mm i think? at the front under the seat
Take them off then behind the seat there are 2 plastic covers each side of the seat runner
Pop the small round cover out and undo the screws. Now, right under the seat are some wires, you should be able to unclip the connecting block, Then just push the seat all the way back and it will come out! Hope this
help.