Leaking Transaxle
Instructor
Joined: Nov 2006
Posts: 221
Likes: 0
Not sure what the leak looks like but just a FYI when I first bought my 05 it appeared to have a leak at the diff (stain)
- turned out to be from overfilling (vent) from original factory fill apparently
I replaced the fluid (with amsoil, fix for common issue with chatter on tight turns) - verified proper level (appx even with fill plug) - 2K miles later no leak seen (I steam cleaned off the diff area when I did the fluid change - no sign of a leak still...)
- turned out to be from overfilling (vent) from original factory fill apparently
I replaced the fluid (with amsoil, fix for common issue with chatter on tight turns) - verified proper level (appx even with fill plug) - 2K miles later no leak seen (I steam cleaned off the diff area when I did the fluid change - no sign of a leak still...)
Race Director
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
It's not really a transaxle, it is two seperate units. The transmission is a seperate casting bolted to the differential housing and they each use a different lubricant.
One or the other (or both?) could be leaking. You or a Dealer will have to determine which is leaking and where it's leaking. My '05 had a differential leak at the rear cover, the Dealer replaced the gasket, it still leaked so they replaced the cover and the gasket, that cured the leak.
One or the other (or both?) could be leaking. You or a Dealer will have to determine which is leaking and where it's leaking. My '05 had a differential leak at the rear cover, the Dealer replaced the gasket, it still leaked so they replaced the cover and the gasket, that cured the leak.
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Not sure what the leak looks like but just a FYI when I first bought my 05 it appeared to have a leak at the diff (stain)
- turned out to be from overfilling (vent) from original factory fill apparently
I replaced the fluid (with amsoil, fix for common issue with chatter on tight turns) - verified proper level (appx even with fill plug) - 2K miles later no leak seen (I steam cleaned off the diff area when I did the fluid change - no sign of a leak still...)
- turned out to be from overfilling (vent) from original factory fill apparently
I replaced the fluid (with amsoil, fix for common issue with chatter on tight turns) - verified proper level (appx even with fill plug) - 2K miles later no leak seen (I steam cleaned off the diff area when I did the fluid change - no sign of a leak still...)
I had the same vent discharge after a trip in hot weather. 
The vent is on top, drivers side and looks like a nickle.
Melting Slicks
Joined: Jul 2007
Posts: 3,097
Likes: 5
From: Brentwood World's first A6 in the 9's (including N/A, blower, turbo and nitrous cars) 9.950@139.267 CA
Check out the color of the fluid - the differential uses gear oil (which is gray from what I recall) and transmission fluid is pink.
