Well i can tell you one method but t would be easier if you used the search. You will need: one clean washing up liquid bottle, or a syringe, old magura hose if possible and your buckets. With the top of the washing up liquid bottle you make the hole slightly bigger to fit the part of the hose in. Fill the bottle with water and anti-freeze. You then need to take off both bolts and pump the contents of the washing up liqiud bottle through the magura untill there is only water and the anti-freeze coming out. You then need to make sure both sides are completly submerged untill you fasten the bolts back in. Your brakes should then be fine. If this does not work then use th search and see what other people have said. Adam.