A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D2 > D2 - Transmission

D2 - Transmission Gearboxes, diffs, drive shafts.

Reply
 
Thread Tools Display Modes
  #1  
Old 25th May 2021, 11:43 AM
tonyt102's Avatar
tonyt102 tonyt102 is offline
Senior Member
 
Join Date: Dec 2009
Location: Marske By Sea, Cleveland
Posts: 112
Default Output shaft leak

Hi all.

Iíve had the common gearbox output shaft leak on to the cat. I had the seal replaced by a local trusted garage and it still appears to be leaking. Thereís a couple of great stickyís about this issue and I can see there are 2 seals, one for the updated flange and one for the oe version.

If an updated seal was fitted to an old/original flange, would it possibly leak? What was actually updated on the flange?

Thanks in advance.
__________________


1999 Audi S8 D2 ::
2007 Audi A8 D3 Quattro Sport 3.0 TDI :: Quartz Grey
2002 Audi S8 D2 Final Edition :: Aqua Blue :: Sold
1999 Audi S8 D2 :: Sold
Reply With Quote
  #2  
Old 25th May 2021, 08:08 PM
MikkiJayne MikkiJayne is offline
Senior Member
 
Join Date: Jan 2012
Location: Devon
Posts: 4,552
Default

The updated seal has an extra lip on it which makes no discernible difference to anything, other than it won't fit with the original flange.

Original flange: needs the original seal
Updated flange: works with either seal

Was it all cleaned up properly? Could it be residual oil still dripping or is the new seal definitely leaking?

The front output flanges can also leak, and while in motion the oil can fly backward and catch the exhaust and cats, although its rare they leak this much.
Reply With Quote
  #3  
Old 28th May 2021, 07:44 AM
tonyt102's Avatar
tonyt102 tonyt102 is offline
Senior Member
 
Join Date: Dec 2009
Location: Marske By Sea, Cleveland
Posts: 112
Default

Thanks for the reply.

Would the revised seal even fit the old flange or vice versa? Or is it impossible to get them the wrong way around?

Thanks again.
__________________


1999 Audi S8 D2 ::
2007 Audi A8 D3 Quattro Sport 3.0 TDI :: Quartz Grey
2002 Audi S8 D2 Final Edition :: Aqua Blue :: Sold
1999 Audi S8 D2 :: Sold
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 01:31 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.