BMW N47 timing chain problem prediction.

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You are asking “Are timing chains on N47 OK or it is time ti change them?” ? Then watch this video and listen to noises that can tell you "the problem is just few thousands KM ahead".
Got another one BMW with N47. BMW320d, e90, 135KW, 2011 where chain service approaches.
It is clear, that if you can hear rattling noises at back of the engine on IDLE it is time to change chains and guides now. But how to define when this problem approaches? Give an engine some rpm! And listen to it! Periodic Rattling noise that comes from back of engine.
P.S.
Now, after 2000 km noise have some progress and can be heard on IDLE also. I will post it a little later this month.

Видео BMW N47 timing chain problem prediction. канала Headliner