Hello and thanks for your question in the autoaid Community.
This fault Code means: hydraulic pressure supply faulty.
By these faultcodes you should Drive to your Mercedes Dealer and let him check the SBC hydraulic System.
Because i think these Part is faulty and have to be renewed.
This is an item that has to be renewed by Mercedes Benz, after the replacing of the SBC this Part must be programmed and coding for your car. Then they must make the venting routine, because the air in the brake System has to deaerated.
Sorry, i would write better things.