HELLO EVERONE :thumbsup:

I' ve had the car since new 05 reg :grin: all has been fine but a couple of weeks a go its started making a quiet suckion noise it seems to be coimg from the engine and only when in motion and its intermitant, no engine management light and the turbos fine, the clips and pipes are all in place what could it be?? its booked in for mid Sept for an service to which I have mentioned this problem to the dealership which they will look in to but just wondering if any one could help in the mean time?