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Gear box oil change

Discussion in 'A3/S3 Forum (8L Chassis)' started by Spatula, Feb 8, 2013.

  1. Spatula

    Spatula S3 8P

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    As said in the title, I'm thinking I'm in need of gear box oil change, as I don't think it's ever been done. I did search the forums for specs etc on a 1.8t '98 AGU, however came to no avail.

    Does anyone know the spec's (oil grade etc.) and how-to's?

    Also, whilst posting, I have a few other questions..

    1) When I change gear, I get a kinda of lumpy jerk? Not sure what that easy, maybe clutch problems?

    2) Plugged into Vagcom last night and came up with the following codes:

    16514 Oxygen (Lamba)
    Sensor B1 S1:
    Malfunction in Circuit : P0130

    01312
    Powertrain Data Bus
    Sporadic - defective

    Could anyone shed any light on these?

    Cheers,
     
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  3. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    This has been discussed a few times mate... search can be a little iffy but maybe worth trying to be a little less specific with the criteria as the info is not that specific to any one car..

    Anyhoo... its 75W90 semi synth gear oil GL4 spec (not GL5)... not sure of the capacity off hand (2.5ltrs rings a bell) so 3ltrs should be enough...

    <tuffty/>
     
  4. Sandra

    Sandra MODERATOR
    Staff Member Administrator Moderator TeamMisano TFSI Owners Group Gold Supporter quattro Audi S3 s tronic

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  5. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    Jumpiness could be an engine mount or dogbone...

    Check your codes here..
    Category:Fault Codes - Ross-Tech Wiki

    ...but sounds like the lambda sensor is faulty and this could also be contributing to your jerky gear changes...

    <tuffty/>
     
  6. Spatula

    Spatula S3 8P

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    Thanks for the info guys and gals. I do try and search for related topics before I post, because I'm aware that you've probably answered a lot of the questions that pop in these threads a million times!

    @ <tuffty/> - noted on the be less specific :sm4: the search function works a bit better.
    I found bit's a bobs related to gear oil stuff, however they were all for different models, and I assume oil type/amount changes model to model.

    Quick question, may sound pretty dumb.
    What is the lambda's function?
    Also, what is the Haldex's function? - sorry to be so nooby!

    Thanks guys :thumbsup:
     
  7. Vex182

    Vex182 Guess what I drive...

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    The haldex enagages and disengages the rear wheel drive. It connects when slip at the front wheel is detected, think of it as a clutch. The lambda sensors monitor the exhaust gases and the response by them make the Ecu adjust the air and fuel mixture.
     
  8. Spatula

    Spatula S3 8P

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    Also, and sorry about this.. lol

    I get the Lambda sensor needs replacing, but 01312

    Possible Solutions


    • Check Databus Wiring and/or Connector

    How would one go about this task?

    Cheers,
     
  9. Spatula

    Spatula S3 8P

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    Ah ok! This makes sense.
    My A3 is FWD. I assume this means I don't own a Haldex..
     
  10. <tuffty/>

    <tuffty/> Badger 5 Edition...Its all about the flow...
    Staff Member Moderator Audi S3

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    Lambda controls fuelling... in your case you have a narrow band lambda and only controls fuelling on idle and cruise.. when afr goes less than lambda 1 (normally under acceleration etc) then lambda goes open loop and fuelling is 'calculated' from airflow

    Haldex is a electronically controlled clutch system that is used on AWD systems to engage drive to the rear wheels

    <tuffty/>
     
  11. Spatula

    Spatula S3 8P

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    Ok I understand. This will probably explain my lumpy idle too...

    So how do I check data bus wiring and/or connector?
    (regarding the other code)
     

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