John your a legend!
I've been doing the servicing myself and I've been changing the oil regularly, i only heard about the flush recently and thought it was necessary to do with each oil change, but i won't bother if it's not required. Is there any way of visually inspecting the engine to make sure a flush is not required?
I rang a mechanic and he's offering to change the belt for 330euro, the belt kit (tensioners, pulleys) is 100euro in itself, does this price seem reasonable? Never had to go to a mechanic before so I'm sceptical about being ripped off!