My 2012 2.0 Tdi 110 has an annoying noise which has recently returned. This noise is only lasts for a couple of seconds when lifting off the throttle whilst going up through the gears. The noise first became apparent when the car was a year old and my Skoda Dealer spent quite a lot of warranty time trying to identify the cause. They seemed to think it was coming from the plastic air inlet piping / assembly at the front of the engine. They did insert various bit of sponge in various places and this did seem to be a cure. Over the years the same noise has intermittently re-appeared only to disappear again. Now it,s back again so I am wondering if anyone else has the same problem.