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| D2 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc. |
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#1
20th March 2013, 07:41 AM
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Front Diff Output Shaft Seal
Can anyone point me in the direction of a procedure for changing this seal? I have a leak from the RH one on my '02 S8. Seems fairly straight forward but would be useful to know any tricks and torque specs for the fixings. I'm assuming the driveshaft has to be removed completely, which suspension link is easiest to disconnect to do this?
Thanks. 
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#2
22nd March 2013, 02:43 PM
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Ere you go. :-). The process is similar for the right hand front, just remove the half shaft inner first. You will probably find it easier to disconnect the 2 lower suspension arms. Disconnect from the sub frame. You will need to cut the rear bolt head off as it is inserted rear to front. Fit the new bolt front to rear. :-)
__________________
Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light. 
Last edited by Conan_the_Librarian; 22nd March 2013 at 02:48 PM.
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#4
22nd March 2013, 05:34 PM
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Snap my 02 S8 needs either the large O ring doing or the one on the final drive RH side, more likely to be the latter. Must get around to doing it sooner rather than later and replacing the GB filter and oil to along with diff top up.. I use the ELSAwin manual which is the official Audi VAG but they are not always as spot on as you'd imagine although for this job its not too complicated i dont think other than would be useful to get torque specs...
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#5
23rd March 2013, 11:22 AM
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The final drive right side flange shaft bolt is 25 NM
The oil filler plug near to it is 35 NM and shld be renewed. Source : Elsawin.
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#6
25th March 2013, 08:16 AM
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Thanks for all the info guys, really appreciated.
Here's some info for anyone planning to do this job…. I removed the big driveshaft hub bolt as you would to remove the driveshaft, and then tried to remove the driveshaft without disconnecting any suspension components (which I did manage on my '03 diesel Passat, contrary to what I read online!), but no luck on the S8. But, I then discovered, once the inner CV joint heat shield (?) is removed, you can move the driveshaft over to the left enough to get full access to the output flange and complete the job without removing the driveshaft at all.
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#7
25th March 2013, 10:53 AM
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cool.
__________________
Conan (the Librarian) Watch it if you dare Currently, 2000 S8, Merlin Purple, Leather Pack 1, Winter Pack 1, SPAX adjustable suspension, AP Racing 6 pot front caliper, 385mm fully floating disks, EBC Yellow Stuff Pads, Black Diamond grooved rear disks and predetor pads, D2 Doctors Brake Block. 1997 4.2 A8SQ - the Projekt. 12 years and ongoing! 1997 4.2 A8SQ - Ming Blue. Restoration sat waiting; saved from the Scrapyard 2003 C5 Allroad 4.2Q - Cobolt Blue. Towing car. Laid up awaiting manual conversion. 2005 C5 Allroad 2.5TDi FE - Grey - Workhorse. 2015 Q3QS SLine - Daytona Grey. Lots of extras! Long Haired Admirals cutter. Previously 2003 C5 A6 1.9TDI FWD - Loaner from D2 Doctor Lifex 1997 S8 - Ming Blue. Loaned out and written off. I loved that car. My first engine swap after cambelt failure. 1996 4.2 A8SQ - Ming Blue. 178k on a cambelt! Trader's 8. Delivered to A8Parts at Lifex. 2003 2.8 A8SQ - powder blueish. Fill in for a while. Sold on. 1998 1.8T A4 Avant FWD. Ming Blue (there's a theme here), PEX for the 97 S8. And a list of non VAG going back 40 years before I saw the light.
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