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Avant Nate
03-19-2012, 08:50 PM
What would cause driveline vibration above a certain rpm in a v6 manual quattro. I'm looking at another a4 and am told the driveshaft needs replacing. Haven't driven it yet, but wouldn't the the vibration be speed dependent, not rpm dependent?

grmnmusl
03-20-2012, 01:43 AM
Its more likely the center support bearing is bad. When it begins to go you will feel it on hard launces out of 1st and 2nd gear and will go away in 3rd, 4th and 5th. When its gone or bad you will feel it at all speeds mainly highway as it "slaps" the underbody making car not really drivable.

It will come from directly under armrest as thats where its located under car.

http://www.blauparts.com/proddetail.asp?prod=F5C2001%2DA

http://www.blauparts.com/audi/audi_driveshaft/audi_quattro_driveshaft_repair_kit.shtml#trouble


Someone did this writeup:
http://forums.audiworld.com/showthread.php?t=2752084