Hi guys, in need of some advice! My car is a 2009 2.2 ctdi manual. It's done 55000 miles. As some of you might know I have only had it a few months. In that time I have noticed that there is a rattling noise coming from the engine area. It only happens between 1000 to 2500 RPM. I have heard that pinking sound at the same engine speeds but this is a more prominent rattle similar to possible chain/tensioner issues. I have used 0w30 oil when I serviced it, the last service I found used 5w30 oil but did not say what type it was. Previous to that it was serviced at Honda dealers with 0w30. This sound doesn't happen in neutral, only when driving. I tried pushing the clutch up and down in neutral to see if I could here the flywheel rattling as it does sound similar to a faulty flywheel, but nothing there. I did here it the other day when I was in neutral on the drive, but it's only when I revved the car and came off the accelerator. Hardly noticeable but very similar. I have read that if the chain or tensioner is faulty the noise can appear at lower revs as in my situation and then as the engine speed increases the oil gets around better and masks the rattling sound. I don't know if this is correct but I would like to know how to check the timing chain and possible other faults? Still learning about this car and engine, so if anyone has any kind of advice I would appreciate it. My alternative is to take the car to a dealer or private garage which I would like to go with more info. Thanks everyone. Sorry about the long post!!!