Rear End Grind
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Joined: Apr 2006
Posts: 89
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From: Lake Elsinore CA
Rear End Grind
So what's with the rear end clunking thing? If you take the car in ,do they charge you to change the differrential fluid? If the fluid change doesn't work and they have to put in new clutches, is it a waranty
repair? Is this something that is caused by faulty fluid, bad clutches
or poor design.
I have the noise on my A6 vert with 1300 miles. I only hear it when I back out of my garage and turn into the street. Once I get going it disappears. It is a very muted grind that I thought was caused by my tires. I never realized what that noise was until yesterday.
Would this eventually freeze up the rear end or just make noise forever.
I'm taking it in to a dealer tomorrow.
repair? Is this something that is caused by faulty fluid, bad clutches
or poor design.
I have the noise on my A6 vert with 1300 miles. I only hear it when I back out of my garage and turn into the street. Once I get going it disappears. It is a very muted grind that I thought was caused by my tires. I never realized what that noise was until yesterday.
Would this eventually freeze up the rear end or just make noise forever.
I'm taking it in to a dealer tomorrow.
Le Mans Master
Joined: Jan 2005
Posts: 5,611
Likes: 5
From: Thousand Oaks California
If you take the car in ,do they change the differrential fluid? YES
If you take the car in ,do they charge to change the differrential fluid? NO, not if within the limits of the warranty
If the fluid change doesn't work and they have to put in new clutches, YES
is it a waranty repair? YES, if within the limits of the warranty
Is this something that is caused by faulty fluid, bad clutches
or poor design. Don't know
.
Would this eventually freeze up the rear end NO
or just make noise forever YES.
If you take the car in ,do they charge to change the differrential fluid? NO, not if within the limits of the warranty
If the fluid change doesn't work and they have to put in new clutches, YES
is it a waranty repair? YES, if within the limits of the warranty
Is this something that is caused by faulty fluid, bad clutches
or poor design. Don't know
.
Would this eventually freeze up the rear end NO
or just make noise forever YES.
Last edited by calemasters; May 3, 2007 at 01:04 AM.
The dealer put the secret sauce additive into my differential under warranty. Grind is pretty much gone from what I can hear. I found that turning up the sound system settles it. 
Safety Car
Joined: Sep 2006
Posts: 3,846
Likes: 0
From: Boca Raton Inlet, Atlantic Ocean (Floridas east coast)
If you take the car in ,do they change the differrential fluid? YES
If you take the car in ,do they charge to change the differrential fluid? NO, not if within the limits of the warranty
If the fluid change doesn't work and they have to put in new clutches, YES
is it a waranty repair? YES, if within the limits of the warranty
Is this something that is caused by faulty fluid, bad clutches
or poor design. Don't know
.
Would this eventually freeze up the rear end NO
or just make noise forever YES.
If you take the car in ,do they charge to change the differrential fluid? NO, not if within the limits of the warranty
If the fluid change doesn't work and they have to put in new clutches, YES
is it a waranty repair? YES, if within the limits of the warranty
Is this something that is caused by faulty fluid, bad clutches
or poor design. Don't know
.
Would this eventually freeze up the rear end NO
or just make noise forever YES.
Safety Car
Joined: Sep 2006
Posts: 3,846
Likes: 0
From: Boca Raton Inlet, Atlantic Ocean (Floridas east coast)
Mine rumbled and mumbled at around 3K and the secret sauce worked for about 4k more miles. Now I have rumble, mumble, snap and pop! Everything but the crackle! Im taking it in next week and requesting the clutch packs.
