Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

The top part just clips off then remove the old filter and replace with new, no need to remove from anything else, very straightforwrd.

yeh basically just undo the clips and kinda wiggle it and pull it a bit and it should come apart. if when you do that it feels like its stuck sumwhere theres probz a clip that uve missed to hunt the area its sticking and try and undo the clip or free it if its caught. as soon as the top cover is off like the above poster said you can see the air filter and simply take it out and drop a new one in then reconnect the top part