I've read all about the dreaded timing chain failure on 320d/520d BMWs with N47 engines manufactured between 2007 and 2011. I wanted to know if models after March 2011 (when they supposedly changed ...

The later N47 engines don't seem to have this problem, which is partly the result of a ridiculous service regime. All engines need an oil and filter change at least every 12 months or every 10,000 ...