As advised on several forums I replaced those two attachments on my expresso Delonghi Magnifica. He, for some time, the marc ejected patties into pieces inside the machine and not in the bin provided for this purpose. After this replacement the problem is solved. Think clean after removing the diffuser and the grooves of the piston which are placed seals and greased everything (piston and liner) with a "Food" fat. Response time 5 minutes.
