So i bought my 2009 tiguan tsi 4 years ago, I am the second owner of the car, it had 110,000 km when i bought it and now after 4 years it has 150,000 km.
ever since i bought it the engine sounded wierd and until this day no mechanic was able to diagnose this problem (maybe because we dont have very good mechanics in my country :S,) i have also sent to the dealership and they couldnt figure it out either, the general opinion seems to be that this noise is normal for a tsi engine but i am not convinced thus i am seeking advice here.
A bit of history over the work been done on the car since i bought it.
Oil change every 5.000 km 5w-40 liqui moly
Chain tensioner swaped to the newer version (just a preventive measure)
New water pump
other than that everything is that needs replacing (tyres, brakes, spark plugs,etc) is all regulary maintained.
during the 4 years of owning the tiguan the noise stayed the same which is demonstrated in the below youtube link
any feedback would be appreciated,