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  1. #1
    Soupie69uk's Avatar
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    Changed a rear diff seal today - Pics.

    My rear diff as been leekin a tiny bit since I got the car over 3 years ago. It was not leaking much at all, no drips or anything just making the diff damp. But thought I would change it anyway.

    Here is the diff before I started.







    Getting the old seal out.




    Bits off.




    New seal and a pic next to the old one. Can see its quite worn.






    All done







    Also got home to find my new tyres had arrived for the powdercoated alloys so went and got them fitted.

    Last edited by Soupie69uk; 19th January 2009 at 17:55.
    A4 1.8T Quattro

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  3. #2
    Neutral

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    i have to do my diff seals soon how did you pull out the dive shafts i heard a puller is needed

  4. #3
    Soupie69uk's Avatar
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    My one just came out i think, may have used a crowbar to pull on the lip a tiny bit first of all.
    A4 1.8T Quattro

  5. #4
    Markey's Avatar
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    Looking very nice mate so clean
    A4 Avant project now started ! see this thread ! http://www.audi-sport.net/vb/a4-s4-forum-b5-chassis/43296-bit-project-going.html
    If you think my post had a usefull purpose please say thanks

  6. #5
    marms's Avatar
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    Well done there.

    It's nice to see someone getting in there and getting their hands dirty.
    You have probably saved yourself a small fortune by doing it yourself and you also have that warm feeling of satisfaction.

    I really hate paying people to do things that I can do myself. With the help of your little write up you may well well have inspired others to 'have a go'.
    Last edited by marms; 6th October 2007 at 21:21.
    I'm an optimist but I don't think it helps much.

    A3 8P 2.0TDi S-Line Sportback DSG

  7. #6
    Soupie69uk's Avatar
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    Cheers guys.
    A4 1.8T Quattro

  8. #7
    jcb
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    and get those stickers off you tyres! like having the price on the bottom of your shoe.... ; )

  9. #8
    Dan Yeates's Avatar
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    Hi,

    Do you still have these photos? Is this a difficult/expensive job as I've noticed my S4 has quite a lot of oil around the rear diff. Also, how do you change the oil in the gearbox? Never done it on an S4.

    Thanks,

    Dan
    B5 S4 - Silver, Cream Leather, Carbon Fibre Trim, Sat Nav, BOSE, After run mod, full four wheel geo alignment, new 710N's, MAF, CTS & EGT,MRC Health Check - runs a dream!

  10. #9
    Soupie69uk's Avatar
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    Updated the pic links.
    A4 1.8T Quattro

  11. #10
    Dan Yeates's Avatar
    Audi S4 B5 Avant

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    Hi, thanks for that.

    Sorry, I'm not familiar with the diff on the car, what have you changed? The seal between the diff and the main drive shaft from the gearbox? Are there boots sealing the diff and the two drive shafts to the wheels?

    Just trying to figure out what I may need to change!

    Is the oil fill easy enough to see once you're underneath? Do I need any particular oil? I read on here that I should use a different oil to the gearbox, without friction additive I think.

    Thanks again for any help.

    Dan
    B5 S4 - Silver, Cream Leather, Carbon Fibre Trim, Sat Nav, BOSE, After run mod, full four wheel geo alignment, new 710N's, MAF, CTS & EGT,MRC Health Check - runs a dream!

  12. #11
    "Stick a V8 in it!"

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    Hes changed one of the seals on the driveshaft stubs, not the main pinion shaft seal.

    Depends where yours is leaking from if it will be the same.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
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  13. #12
    Dan Yeates's Avatar
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    That's what I thought. Thanks.
    B5 S4 - Silver, Cream Leather, Carbon Fibre Trim, Sat Nav, BOSE, After run mod, full four wheel geo alignment, new 710N's, MAF, CTS & EGT,MRC Health Check - runs a dream!

  14. #13
    Soupie69uk's Avatar
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    Folks anyone got the part number for the rear diff seal? I am going to replace mine again as the sump is getting damp.

    No drips or anything just better to sort small things before they become big issues.

    Plus where is the best place to get genuine parts now? Need to get a diff seal and a few other bits and bobs.

    Plus anyone any suggestions on what diff oil I should use as I may as well replace that and the gearbox oil while I am in about it.
    A4 1.8T Quattro

  15. #14
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    The diff seal is about a tenner +vat from stealers I've got one ready to fit and any 75w90 oil will do.

    On the subject how much oil does the diff take and also the gearbox as I'm going to get some ordered for when I get round to doing mine ??
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  16. #15
    Bradderz_1988's Avatar
    Dont replace it, Upgrade it !!

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    Diff seal is 016 409 399 b I asked for n/s but I presume that's same for the offside.
    1999 Audi A4 1.8T Quattro Sport - Volcano Black

    Mods - Frankenturbo F21 Kit - 3" MAF - Saab Reds - THS Decat - Non Res Milltek - ECS Crank Pulley - 034 Snub + Bracket/Gbox Mounts - 1Z/S2 Clutch + Flywheel - 007p - ICM + EVAP Delete - PFR6Q Plugs - S4 B6 345mm Brakes - 300mm Rear Brakes - Goodridge Hoses - LCR Splitter -S4 Bumbers + Skirts/Mouldings - OEM Xenons - Apikol Diff mounts - Polytek'd Rear Diff Mount
    To do/planned -Eibach pro's - GT2871/76R + FMIC + ME7 (maybe) + Engine/stroker Build

  17. #16
    NineNails's Avatar
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    A common mistake made with the rear diff is to fill it with oil until it runs out the hole. So with it over-filled it can blow the excess past the seals and then will usually stop leaking The fill level is a few mm below the hole.
    2000 1.8t quattro Sport totally standard (ish)

 

 

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