Where is the petrol filter on an opel corsa ecotec?

It all depends on what corsa it is, my Opel corsa 1997 1.3i Lite's filter is situated inside the petrol tank, you can get to it by lifting up the back seat and opening tha black round cap.

I have a corsa c sxi 2001. I will be changing the petrol filter at the weekend. It is situated under the car beside the petrol tank near the back. Make sure you depresurise the tank before taking the old one off or you will have petrol all over. Leave for 20mins with key out the egnition and relese petrol cap then put it back on and start work. Have rags and paper ready for spillage. Hope this helps

I have a Corsa c 2001 and i am in the prossess of changing the petrol filter. Mine is at the side of the petrol tank just under the front side of your back off side wheel. You should get at it by lifting the back off side of your car and put it on an axel stand. It is just as the chap said before me