Hey guys, a newbie in this N47 world...
Just purchased a 320D with this engine, to get me to know of this problem just after I got the car - now I am driving one ear on the dashboard, other wherever... it is just like Chris said, an obsession
Mine has covered 107 000 kms and I believe there is hardly noticeable noise from the timing chain! BMW guy who had it inspected (changing oils, filters, belts after I purchased it) said all is fine and there isn't any noises from the chain, but I believe there is... now time will show if it worsens
I still can not really figure out if all engines build in between 2007-2011 have the issue, or is it valid for certain range of chassis (VIN's) only?
I will keep you all posted how "my noise" progresses...
All the best!