Recently having issues with my 1999 VW Passat 2.8 V6 4Motion (Tiptronic) when accelerating hard and mostly in first gear, has happened a couple of times in second gear also (as changes gear). In the rear you can feel a vibration through the car as well. I know in the video you can also hear rain but hopefully you can also hear the noise im referring to....any opinions on what it could be would be much appreciated. I should also mention its really only noticed this when its been raining.....
HELP: 2.8 V6 4Mo Grinding under hard acceleration (video)
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