Broken engine ? (X6 e71 35d M57N2 306d5) *HELP*

[snorbi94]

Hello guys. While is was driving my x6 35d at 80km/h constantly, I heard a squealing and terrible knocking sound from the engine bay. I stopped the car instantly. No warning light turns on in the dashboard. I've put my Carly on the car and gives me 2 errors on the engine (4b11 and 4b10). The timing chain was changed 40k km ago and I've changed the engine oil every at 10k km.