After careful research where the jumping and hitting our Miele comes. Have we decided to replace the shock absorber. Finally, costs a lot of money and if new, it is only because that just under 20 not the speech are worth. Our Miele is over 20 years old and spotless. Even if the damper should not take so long, the money is well spent. Anyway, now the "good" and running again very softly and smoothly. We are very pleased :-)