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Gearbox ECU Shortage?

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by cadders, Jul 10, 2006.

  1. cadders
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    cadders Member

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    [Jul 10, 2006]
    Hi, my 03 2.0 FSI A4 is in the dealers awaiting a new ECU for the Multitronic gearbox. So far I have been waiting nearly four weeks for a replacement ECU. The dealer explains that the delay is due to a worldwide back-order for these units. I was wondering if there is anybody out there in forumland who is in the same position?
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  3. cadders
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    cadders Member

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    [Jul 11, 2006]
    Hi CurryMilkShake, thanks for the post, makes interesting reading.

    I am finding it difficult to gauge how common ECU failures are on the multi box. The posts I have read make for uncomfortable reading, but people will always post their horror stories and rarely post if the car is performing well.

    My early impressions are that multitronic gearbox failures are more likely to be ECU / sensor failures rather than mechanical failures and that they seem to fail around the 50 to 60K mile mark (mine has done 54k). So if you have had yours replaced, maybe you are good for another 50k miles.....but as the dealer told me it's a £700 job (mine too is being done under warranty, thank God) I too would be nervous about running one outside of warranty. Like you I love the smoothness of the box.....when it's working :)

    So...anybody with high mileage problem free multitronics out there to make me feel better?
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  4. jdp1962
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    jdp1962 Grumpy Old Moderator Staff Member Moderator

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    [Jul 11, 2006]
    You guys are not doing anything to make me feel good just now. I've just bought a three year-old Multi, with 55K miles (which I love, BTW).

    But if it's gonna blow, I hope it's while the car's under Fontain's used warranty.
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  5. cadders
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    cadders Member

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    [Jul 11, 2006]
    Hi jdp1962, I think you can stop fretting.

    I'm not trying to be alarmist, just trying to get some perspective on the probability of multi boxes failing. The one theme that seems to run through negative posts is that Audi do not quibble about covering the full cost of replacement or the loan car whilst it is being done, as long as the car is under warranty.

    Audi do seem to put a lot of emphasis on the fact that multitronic gearboxes should have their ATF fluid changed every 40K miles. However, reading some posts it is not entirely clear if all owners were actually informed at 40K that they needed to have this done. As yours (like mine - bought with 48K on the clock) was supplied under the Audi Approved Used scheme then I believe it becomes Audi's liability to cover any resultant failures as a result of this not being done. Even so, the next time you have reason to contact the dealer, it is worth checking if the ATF was changed at 40K.

    For info, I had a couple of symptoms before the ECU failed, but only realised their significance after it failed. First, just after starting a journey I came to a stop and the car would not pull away; although the gear level was in D, it was behaving as though it was not in gear. I had to switch off the ignition and restart. Later on in the same journey I came to a stop on an incline and the car started to roll backwards - automatics shouldn't do this. But then I had about 1000 more trouble free miles before the ECU failed. So there were some warnings.

    If your car is not showing any symptoms then don't worry - I don't believe all multi boxes are doomed to fail, just an unlucky few. But I continue to trawl and post on the forums to get a better picture.
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  6. jdp1962
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    jdp1962 Grumpy Old Moderator Staff Member Moderator

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    [Jul 11, 2006]
    The fluid on mine was changed at 48K. Also, my warranty is not Audi Approved Used. I bought the car from Fontain, the non-franchised Audi specialist in Buckinghamshire:

    http://www.fontain.co.uk/
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