Greetings from Maribor, Slovenia

I bought a used car Outlander 2.0, Year 2003 and something is wrong with the engine.
The car has traveled 138,000 km, recently, the car started to pull to the left, then appeared rumble. While driving it sounds like metal grinding and cracking.

Please advise - what could have been corrupted, opinions ?

Rumble of the engine is shot here :

http://www.youtube.com/watch?v=n4TYkX5U-U0


thanks for your help