Hello, a lot of text, therefore a division into short and long version as well as Xentry/DAS DiagnosisSymptoms (short version) engine shakes and shakes easily for a week when the car stands at the traffic light. Engine went off once. Errors not reproducible at any time but actually occurs every ride. Sometimes the engine jerks at traffic light 1, at traffic light 2 and 3 but not again from traffic light 4. No power loss and no problems during the ride. Yesterday however, the engine jerked strongly No MKL, only yesterday before the engine truck on the highway. Troubleshooting with Xentry/DAS is difficult. Symptoms (long version) At the beginning of last week the problems started. After I had filled my W221 S500 (M278) I stood at a traffic light. The engine started to shake slightly and went out. After that the engine let itself start without problems and there was no MKL. The next day I had moved the car again and noticed, that the engine shakes again easily when I am standing at a traffic light or in traffic jam. I have been driving good 150km since then without the engine running out, but the shaking of the engine still occurs irrevocably. I can’t reproduce the error myself. After the cold start the engine has always run rough for the first 1 minute. Sometimes I can stand at a traffic light with the brake kicked or due to traffic jams and the engine runs softly. At the next traffic light the motor ruc I don’t notice any loss of power or a jerking during the ride. Yesterday morning the MKL started when I was standing at a traffic light again and the engine had shaken slightly. I drove on, had parked the car for a few hours and left again. On the highway I had accelerated from about 110km/h to 130km/h (no kickdown) until the engine gave a strong jerk of itself without the engine starting to start slowly again and get up the longer I stand. The engine was revised 2 years ago (drive chain + cylinder) with fuel filter change as well as replacement of various lines and hoses. Quotation: P008792 – The fuel pressure in the system is too low. The function or the instruction is faulty. – SPEAKED Quotation: P023628 – The charging pressure sensor has malfunction. The signal offset is outside of the system. – SPEAKED Quotation: P023628 – The charging pressure sensor has malfunction. – SPEAKED