Hi guys, You've been a great source of info in the past. So here goes, 2001 HDi Exec 100k miles recently serviced so all fluids topped (abd checked). There's a strange clattering noise across all rev ranges and is more noticable once into 4th and 5th gear. I know you get the bag of spanners bit with the diesel but this sounds like a constant chattering noise like a loose cover or something. Have checked the obvious and everything seems to be in place but its still making this noise.
Is it to do with the time of year i.e cold air? The noise is pretty much there all the time at the moment and doesn't go away when the cars warmed up. The timing belt was changed about 4k miles ago would this have anything to do with it?
TIA