High consumption for Ford Transit 2.2 TDCi Diesel

In the evening, I have problems with my Ford Transit 2.2 TDCi Diesel 100ps (built in 2016). I had a problem here: https://www.motor-talk.de/…/…oher-spritverbrauch-t7449547.html?… I had a marten damage in January/February, which had bitten me the turbocharge air hose and as a result I had no more power. I had the damage removed and the bus has again steam. However, I still have one in my eyes. ø9,2L/100. What bothers me is that I can drive with full tank filling between 800-870km, originally before I had the above mentioned damage I was able to drive over 1000km with a tank filling. What also seems funny to me is that I shot on the highway at constant 100km/h on straight distance around the 11L. I had changed a new air mass meter (Bosch), a new AGR valve and the diesel filter 3 weeks ago, but no better g. There’s nothing in the error memory, so you don’t have a clue either. Maybe someone has an idea about what that might be, or if I’m just crazy and the consumption is completely normal.