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Cam belt or chain?

Discussion in 'A8/S8 forum' started by inS4ne, Oct 15, 2009.

  1. inS4ne
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    inS4ne lives for speed

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    [Oct 15, 2009]
    I'm getting conflicting information and would be grateful for some advice! Are the D3 A8 4.2 petrol engines belt or chain driven? Also, the 4.0 Tdi's, same question....belt or chain?

    Either way, what are the service intervals for change and what sort of damage are we talking (roughly)?

    I've emailed Audi but don't seem to get a response from them and have also asked on another forum but haven't had a straight answer!

    Straight forward answers would be gratefully received as I'm looking at getting one in the next few weeks and need to go in with my eyes open and some haggling points ;)

    Thanks for reading :)
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  3. inS4ne
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    inS4ne lives for speed

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  4. inS4ne
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    inS4ne lives for speed

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    [Oct 18, 2009]
    Aw, come on....someone must know :keule:
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  5. Broken Byzan
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    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User

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    [Oct 18, 2009]
    I have to say i dont know, but i can bet if you PM Siena, he will be able to help you.
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  6. inS4ne
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    inS4ne lives for speed

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    [Oct 18, 2009]
    Thanks Byzan :icon_thumright:

    I came across this wee little pic [below] of the rear of a 4.2 V8 which I think answers my questions regarding belt or chain but still need to know when they should be serviced and the costs involved!

    [​IMG]
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  7. inS4ne
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    inS4ne lives for speed

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    [Oct 19, 2009]
    Further to above, I've now been told by a tuning company that up to around 2008 the petrol engines are belt driven :banghead:

    Is there anyone here that owns either a 2003 or 2004 A8 with the 4.2 petrol engine that knows for definate?

    I'm getting a real headache regarding this now, soooo many different people have told me different things!

    Again, thanks for reading :icon_thumright:
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  8. inS4ne
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    inS4ne lives for speed

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    [Oct 20, 2009]
    I've now had a clear answer [thanks Siena] and can confirm the D3 4.2 petrol engines are indeed belt driven for anyone else that may need this information ;)

    I have also been informed by another party that there is a wee bit more clearance at the front in the D3's which could enable the change, if your good, without removing the entire front end........we'll see about that one!
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  9. Subarupaul
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    Subarupaul New Member

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    [Dec 1, 2009]
    If its a belt 60K will do and if its a chain, it doesnt
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