The Audi/VW 2.0 Turbo engines found in 2006-07 model years suffer early from a failure of the high pressure fuel system as well as the intake camshaft.  The mechanical high pressure pump is driven by the intake camshaft and can get damaged as a result of the cam lobe wearing onto the cam follower.  Symptoms to look out for are a check engine light on, a rough idle, low power, as well as a fuel cut at higher rpms just to name a few.  This is a design flaw that is around 60-80k; keep your eyes on your dash for a check engine light.   If your car is running rough and poor acceleration under a heavy load, please give us a call.