to the right of the engine block on the gear box side of the engine half way down you will see a large black oil filter housing it is plastic it is unscrewed by using .. i think its a 32 mm socket but not certain it is large though ... place some cloth under the housing before removing to prevent oil dropping down to the gearbox, then remove the housing, the filter normally stays inside it is a yellow paper filter on your model of corsa then with your new oil filter you should have got a new rubber seal with it , you must change the rubber seal on the oil filter housing when replacing the oil filter as when removing you can damege the seal therfore it will leak. before you go about doing all this though you should always change the engine oil before removing the filter. drain the oil from the sump ( underside of car ) you will need a t-45mm (torx ) socket and a ratchet make sure you have the rubber seal for the sump bung also. once you have drained the oil then do the above and change the oil filter as i explained. you corsa will take 3.2 liters of oil when you have replaced the filter and you go about putting in the new oil
dale ellis, February 2007