Given your description the MPG and that it doesn't hesitate under acceleration and give big clouds of black smoke I don't think its yet a major concern but like everything else it is a case of keep observing it and make certain oil and air filters are changed as recomended or when the air filter begins to look very black
thanks for that Richard;
ref hesitate under acceleration; when you pull away or sometimes change gear there can be a delay while the revs build to about 2000 rpm before it kicks in; I just thought this was normal for the turbo diesel?
air filter looks really clean.
keep an eye I guess
The 1.6 has a variable vane turbo to reduce turbo lag which I tend not to see (Unless I try to pull away in third by mistake)
Try also feeling for any surface / pipework that feels oily that might indicate a leak
I'm experiancing the same smoking from my 2004 1.6tdci, and have just had it serviced at fords and they told me "it's a bit throaty"so i asked him what he meantand he saidbasicaly that the intercooler pipe is begining to crack at the point where it is attached to the block and that it will eventualy fail and need replacing.
Upon faliure there will be a lot of black smoke and a loss of power.
So i have enquired to the cost and am awaiting a reply.
A little blue grey smoke at idle and a small amount of grey smoke at start up while the atomisation process gets going properly and I supose some grey / black smoke if you are overly agressive with the right foot