Grinding/Vibration
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Pro
Joined: Jul 2008
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From: Palm Harbor Florida
Grinding/Vibration
Its a little hard to explain this problem but I'll try: 2000 A4 C5 with 35,500 miles...Only when Im backing up I hear what can best be described as a light grinding noise with a little bit of vibration. I know it's coming from the rear. Pretty sure it's tranny related..or maybe the diff..Is this something I need to be concerned about? It has always done it since I got the car a year ago. No problems going foward...thanks...Paully
Le Mans Master
Joined: May 2006
Posts: 7,875
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From: Hillsboro OR
Its a little hard to explain this problem but I'll try: 2000 A4 C5 with 35,500 miles...Only when Im backing up I hear what can best be described as a light grinding noise with a little bit of vibration. I know it's coming from the rear. Pretty sure it's tranny related..or maybe the diff..Is this something I need to be concerned about? It has always done it since I got the car a year ago. No problems going foward...thanks...Paully
This works well for a while. After the third time I needed to change the fluid, I just replaced the 2:73's with 3:42's. It hasn't happened since.
HTH
Le Mans Master
Joined: Feb 2008
Posts: 8,515
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From: Rochester New York
You'll need to change the Diff fluid. Be sure to add the LSD lubricant to the fluid as well. After changing the fluid, do a series of slow figure-eights in a parking lot (forwards and backwards) to work the LSD fluid into your syncros.
This works well for a while. After the third time I needed to change the fluid, I just replaced the 2:73's with 3:42's. It hasn't happened since.
HTH
This works well for a while. After the third time I needed to change the fluid, I just replaced the 2:73's with 3:42's. It hasn't happened since.
HTH
