BMW F10 5 series How to read DPF "Diesel Particulate Filter" check with ISTA status- normal values.

In order to make a correct check of the functional state of the particle filter, it is necessary to make all the measurements of the temperature sensors and the pressure sensors, if their values ​​are within the operating margin, then the final result will be correct.

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I little bit don't understand description. All values should be identical but deviation +/-20mbar are allowed. In my case sensor ambient and sensor before turbine shows the same value e.g. 1013 mbar, charging pressure is 1038 mbar, before dpf shows 1022 mbar. The last one is new OE (it has ~200km), reset adaptations performed after sensor change. What do you think, where is the problem ? At you 3 sensors read the same, only charging is a little bit above rest.