Think your right mate. Still no further hiccups so Im happy.
Checked the temps on the car on the way to work yesterday and it only got to 54 degrees. Changed the EGR stat last night and achieved 77 degrees on the same journey with the same volume of traffic this morning. So Im getting to where I should be, but not still quite up to 85 / 90 where I should be I believe ? So the main coolant stat is to be changed as soon as the part arrives.