I've been looking at a parts listing and I think that the part you would replace is called "lid lock with micro switch" and is part number 6J3 827 505B, maybe check what the part number is on your car, it could be 6J3 827 505A, but that part has been revised up to "B" - I've forgotten but it is a 2 door car you have, 4 door cars use a different part number I think. I did search as far as I could and did not find any other item like "locking module" listed - which was what I was looking for! If you can confirm that the cable form plugs into the item with the part number I have listed, then you should phone your local SEAT dealer for a price for that spare part. Nearly new on ebay looks like roughly £40.