They're only there to prevent them freezing up when you're driving, very rare to find a working set as they soon gunk up & rust inside when owners don't bother to use proper screenwashÂÂÂ

Try looking on MK3 Golfs in the scrapper, will be a little newer and more chance of em working! You could probably test by wiring em to 12v and putting some ice on em or summat, maybe try defrosting the freezerÂÂÂ

Oh and while youre robbin gthe jets from the MK3, swipe the black washer hose, looks much better than the orrible yellow stuff you'll have on your MK2
