Sorry to hi-jack..
When I got my mk3 it took 2 liters to get it upto halfway on the dipstick, nothing wrong with the engine though (as far as I know) so im sure that the mk5 gti will be just as well built and be fine without that bit.
Since then, mines used half a liter in 1000 miles. Just wondering if thats normal for a car in my car too?
Eeeek - two litres . . . . I'd seriously consider giving it another oil change asap, because the oil which was in the sump before you topped it up would have been working wayyyyy toooo hard. Look at it like this, if your sump is designed to run with say 5 litres, and you need to add 2½ litres in one go (OK, you said you only added 2 litres, but on modern cars, dipsticks are usually 'calibrated', so that it will normally take exactly one litre to go from min level to max level) - then you have just lost 50% of your lubricating abilites. Imagine driving around with both rear wheels missing! OK, the engine may have got off rather lightly, but don't continue to push your luck.
