1997 1.8t Sport I need to undo the Heater Water hose clip to bleed the Water system(the one on the left side of the 2 Heater Hoses..it's them Special Vag Clips that you need the Vag Pliers for..probably ok to undo but can you tighten them without the Vag Special Pliers or do you replace with a 30m Jubilee Clip..don't want any leaks ...