differential noise
Thread Starter
Burning Brakes
Joined: Feb 2008
Posts: 949
Likes: 1
From: Tampa fl
St. Jude Donor '14
differential noise
I picked up and 06 A6 base with 17k miles on it this weekend and today I noticed a noise from the diff. When I am taking a slow turn. I have read that this is due to the fluid gm used and that if I change the fluid all is peachy. What can I do to ensure it is only the fluid?
Racer
Joined: May 2010
Posts: 257
Likes: 1
From: Crownsville Maryland
I picked up and 06 A6 base with 17k miles on it this weekend and today I noticed a noise from the diff. When I am taking a slow turn. I have read that this is due to the fluid gm used and that if I change the fluid all is peachy. What can I do to ensure it is only the fluid?
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
Just change the fluid I have to change mine every year and a half.
I just got it changed on the 29 of Dec and it was making a ton of noise ,I though the rear was shot but that fluid did the trick.Don't forget to do the figure 8's when it is changed or the noise will only be a little less than it is now.
I just got it changed on the 29 of Dec and it was making a ton of noise ,I though the rear was shot but that fluid did the trick.Don't forget to do the figure 8's when it is changed or the noise will only be a little less than it is now.
Race Director
Joined: Jan 2006
Posts: 18,396
Likes: 169
FYI. I had noise coming from the rear of my 05, and the dealership diagnosed it as differential carrier bearings. They installed a new differential, however a test drive then showed the noise was still there.
It turned out to be loose axle retaining nuts.
This was a common issue back then, especially on the early Z06's.
Worth a check.
It turned out to be loose axle retaining nuts.
This was a common issue back then, especially on the early Z06's.
Worth a check.
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
FYI. I had noise coming from the rear of my 05, and the dealership diagnosed it as differential carrier bearings. They installed a new differential, however a test drive then showed the noise was still there.
It turned out to be loose axle retaining nuts.
This was a common issue back then, especially on the early Z06's.
Worth a check.
It turned out to be loose axle retaining nuts.
This was a common issue back then, especially on the early Z06's.
Worth a check.
I had the same issue, lose axle nuts.
Thread Starter
Burning Brakes
Joined: Feb 2008
Posts: 949
Likes: 1
From: Tampa fl
St. Jude Donor '14
Thanks for the reassurance guys. I am going to see if the dealership will change it for free and if not Im gonna change it with mobil 1 or royal purple because it is readily avail.
Thread Starter
Burning Brakes
Joined: Feb 2008
Posts: 949
Likes: 1
From: Tampa fl
St. Jude Donor '14
So does mobil 1 acording to their site
"Mobil 1 Synthetic Gear Lube LS 75W-90 contains special friction modifiers designed for limited slip-type differentials. In most applications, the addition of special LS (limited slip) additives is not required. For axles requiring the highest level of limited-slip performance, OEM specific LS additives can be added to this fluid."
"Mobil 1 Synthetic Gear Lube LS 75W-90 contains special friction modifiers designed for limited slip-type differentials. In most applications, the addition of special LS (limited slip) additives is not required. For axles requiring the highest level of limited-slip performance, OEM specific LS additives can be added to this fluid."
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