Help to Deepen

Hello, I have a bit deeper before my C230K Bj97 Sport version.I wanted to get some tips from you as you did.Had tried to do it last weekend (front axle), unfortunately I have to find out that the spring tensioner of a friend did not fit.We had then put a jack under the triangle handlebar DL(I hope the part is called so) and solved the shock absorber then slowly lowered the car lifter until it almost no longer exerted any power on the DL, unfortunately it had not yet been enough to relax the spring. Do you have maybe some tips what you can still solve so that the DL goes further down or since you went otherwise??An Orginal spring tensioner from Mercedes costs with me in the area about 1200DM!!!!So much I don’t want to spend! Did someone even take photos of how he changed his feathers?