i need to fix a barrel and new key to my 03 vauxhall corsa 1400cc?

you will need to remove the surrounding shrouds around the column,if you look at the top of the column there should be a small hole,the key will need to be in position 1,press a small pin/punch into hole,press down and the key and barrel should pull out,the new key and barrel will also need to be in pos.1 along with the ign.sw. Your new key will probably have to go onto tech2 to be programmed.

cdc
September 2013