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Help/Advice with my Audi A6 please

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  • Help/Advice with my Audi A6 please

    Hi am after some advice on my Audi A6 3L tdi quattro le mans its a 2008 model saloon and it went in for its routine service and check and I told them the car has been driving like a pile of crap the last few weeks and they told me the rear diff has collapsed obviously making the car dangerous to drive. I have since bought a diff off ebay and its the wrong one as mine is the all aluminium and I got the steel one!! My question is how dangerous is it when the rear diff is ****ed and are they repairable?? You will laugh at this phoned Audi up for a price of a new one and they said £4895 the bloody cars not worth that the idiots! Any help and advice greatly appreciated folks thanks in advance

  • #2
    Wow, how could that happen?

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    • #3
      Don’t know my car was getting noisier when driving along and I just thought the alloys were curbed or something and I knew it was going for a service. My garage hasn’t come across this before. I just need to know whether diffs are repairable from any of the clever guys on the forum!!??

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      • #4
        Whatever's broken would obviously need replaced but there'll be debris in the oil which will mean replacement of the bearings too, a rebuild wouldn't be cheap given Audi prices. I think you're on the best course trying to source another diff?

        It would be best left to a transmission specialist if you went the repair route?

        Strange for it to give up, can understand if it were the CV joints due to dirt ingress...…..but the diff itself??

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        • #5
          Is that a normal dif, a lsd, or a torsen?

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          • #6
            Originally posted by John. View Post
            Whatever's broken would obviously need replaced but there'll be debris in the oil which will mean replacement of the bearings too, a rebuild wouldn't be cheap given Audi prices. I think you're on the best course trying to source another diff?

            It would be best left to a transmission specialist if you went the repair route?

            Strange for it to give up, can understand if it were the CV joints due to dirt ingress...…..but the diff itself??
            I find it strange also it’s a big saloon car so I don’t rag it about. Now am no specialist at all but am guessing the diff is linked into the gearbox?

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            • #7
              Originally posted by Henkjan View Post
              Is that a normal dif, a lsd, or a torsen?
              I don’t know tbh?

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              • #8
                Probably could find a low mileage diff at a wrecker for a much lower price?
                Nick

                1995 Audi RS2 . . . plus a few other old German cars

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                • #9
                  Originally posted by npvpositive View Post
                  Probably could find a low mileage diff at a wrecker for a much lower price?
                  Yeah that looks the route am going to be taking bought one off eBay and it’s the wrong diff even though it’s off an 2005 Audi A6 3L Quattro

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                  • #10
                    The easiest and probably most economical soution is just to source the correct s/h diff. Unless of course this is a common failure on these models.
                    Get the diff code and part number and cross reference it against other models. Doubt whether its particularly scarce.
                    Its going to be quicker to swop a whole component over rather than pay someone to take the original apart and rectify the problem.

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                    • #11
                      Originally posted by twoqu View Post
                      the easiest and probably most economical soution is just to source the correct s/h diff. Unless of course this is a common failure on these models.
                      Get the diff code and part number and cross reference it against other models. Doubt whether its particularly scarce.
                      Its going to be quicker to swop a whole component over rather than pay someone to take the original apart and rectify the problem.
                      ^^ whs

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                      • #12
                        Thanks chaps think I will!!

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