118d timing chain noise

[tim0409]

Hi

I am just looking for an opinion on the following. I have a 118d 2008 (74k) with the N47 engine and have read a lot recently about premature timing chain failures which are sometimes (but not always) preceded by a "flapping" noise. I bought the car (ex lease auction) and have done 3k and since then have heard a metallic type noise twice during this time when accelerating through 1500-2000rpm. I may be paranoid but have taken some videos and would be grateful if anybody familiar with this engine would give a view as I have nothing to compare it too, although I have heard that this is not exactly a quiet engine...

http://www.youtube.com/watch?v=G6zHTtdL6yw&fea... at idle and accelerating up to 2k rpm -

http://www.youtube.com/watch?v=kajTJpmMpCU&fea...


thanks.