purusam

The fluttering sound i have is when i press down the clutch.

Yes its a stock. I have done nothing to tune it. To hear the sound in the video you have to turn upp your volume real high becouse my microphone is bad. It cant be normal that the car makes this sound ? I belive the car did not do this sound when o drove it out from the dealer first time. The sound comes on first gear when im in 2000 rpm and going to shift to see cond gear. When i let my fot od the gas and pressing down the clutch I have heard the sound on others gears but its not always there. The rattle sound always come in the first gear when shifting to second gear. The car is a diesel with twinturbo

Youtubevideo showing the sound. http://www.youtube.com/watch?v=EW4wxFr6wXA&feature=youtu.be

Greetings from Sweden. For your information: The car is the new Mazda 6 twinturbo 175 horsepowered manual Diesel. I found this thread when i was googling around. I hope some of the members posting in this thread is still active. I have a problem. When im shiting gear this muffling fluttering whatever sound comes when change gear. My dealer says it is the wastegate doing its job. But i didnt belive it. So ihave done some reseach about the sound that are coming when i change gear But the term wastegate was wrong.? The right term is compressor surge (comp surge) So i recorded the sound from the inside when i was driving. You have to turn upp your volume very mutch to hear it. (bad phone to record with) http://speedy.sh/bFjxM/compressor-surge.mp3 http://speedy.sh/GpbzH/compressor-surge1.mp3 What do you think ? My questions to you guys is. 1: Can this compressor surge (comp surge) damage the engine ? 2: Does your vechicle make this sound (diesel) ? 3: What can be done about this issue? ?