Hello, and thank you already in advance ! Have again a problem with my KA 1.3 liter Built. 1996 ! If I drive more than 50 kilometers the rim becomes very hot and it smokes from the recesses of the rim. It seems as if the brake pistons do not go back and the pads constantly grind on the disc. At the descent without gear the mileage decreases ennorm ! What can I do there, have already two times the saddles removed and with Caramba the bolts fettered t. Now the problem was gone, but it has already come back! Is a new caliper helpful?