Good evening. Today, when I went for Mara dynamo repair, the mechanic pulled out the turbo pipe (turbo inlet or outlet) because of the oil buildup, and there was some oil in that area as well. The mechanic immediately said the turbo had started pumping oil and needed to be changed immediately. After some research, I got confused. My car doesn't have any loss of power, there's no oil loss/burning, and there's no turbo whistling noise. Some said there might be a crack in the pipe and replaced the turbo barrel, while others (in the videos) said the oil there doesn't indicate a problem; they mentioned the pipe was loose. The mechanic didn't inspect the pipe or anything like that. What should be done? What do you recommend?
Serdarakgl