Thick-walled intake air hose for turbo

Hello everyone,

I own a Skoda Octavia 1Z3 with a 1.9 TDI BLS engine, 77 kW power output, and 2299xxx kilometers on the odometer. The engine has been "chipped" (modified), and I've been experiencing an unexplained loss of power for some time.

VCDS Autoscan does not report any engine electronics errors.

AGR has been upgraded and completely cleaned. It was completely clogged with oil. After the procedure, there was a slight improvement in acceleration under partial load.

Since I now had a crack in the vacuum hose from the BKV, it was replaced, and during that, I noticed that the intercooler hose, which connects to the turbo, is completely oily - I unfortunately don't know where this is coming from?

I have attached the pictures of the oily hose in the attachment!

Where does the oil come from and could the turbo have been damaged?


Best regards, Ben

[Translating...]

Sieht für mich aus, als würde die Klammer fehlen, die den LD Schlauch am Turbo-Abgang halten soll, fehlen.

Grüße
Guste