My beautiful new 4mo, 5-speed 1.8t passat wagon now has 1,400 miles on it and I have just begun to drive it with a bit more spirit. Yesterday I noticed, in the midst of Manhattan evasive maneuvers, a strange sound following brief bursts of full throttle at about 2000-3000 rpm. After a quick release of the accelerator from the full throttle position at the above rpm range, there is a "trailing off" noise sounding something like a scraping metalic rasping exhallation; almost like a metalic wheeze. It lasts scarcly 1-2 seconds. I've never owned a turbo equipped vehicle and, I wonder if the sound is simply the turbo spinning down after the full throttle burst. I don't notice the sound from 1000-2000 rpm when perhaps the turbo hasn't kicked in. And, I don't hear it after 3000 rpm, --perhaps becuase the engine noise drowns it out? Is this type of sound normal for the 1.8t engine? Might I have a problem? Please help shed light on this if possible. I'm worried about my new baby! Thank you so much.