Sometimes statement about engine picture / damage picture requested….

Hello, I would like to ask the “knowledgers” among you what kind of damage this picture indicates to the engine. Background: Renault in FD diagnosed at least one oily and defective turbo on the car. As a result there was an estimate including AGR cooler which was also defective in the amount of 7500 €. Since this is about a dealer’s warranty, he did not want to have the car repaired at Renault but in his partner workshop. The dealer then informed me that the turbos are obviously “new” and the engine has a problem. What exactly the engine now has he could not tell me. Just engine damage. The engine is now repaired and the turbos stay out first.You can see on the exhaust side already quite a lot “oil” … but on the one loader just also. Maybe one can write me accordingly.