2009 Astra 1.7 cdti ecoflex - major problems with fuel pipe noise & cutting out

Is anyone experiencing the same problems as myself with characteristic noise from 1.7 cdti ecoflex model?? I have been advised that this is a common noise with this particular engine model, I believe which is Z17 type, also in the zafira. The car often cuts out from time to time with no warning. Vauxhall have no fix for this to date & advise it's just something you have to put up with on this particular model. I believe it should be classed as a fault, but just wanted to check to see if any other owners have the same problem before I take the matter further. Car has been into service dept this week for fuel line change over to try & improve on the noise, but no luck still stuck with this noise.