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Is This Normal?

Vibe Aug 17, 2014

  1. Vibe

    Vibe Member

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    Hi,

    just a quick one

    So picked up my S5 Tuesday and ive noticed when I gently pull away or reverse the revs bounce? Quite annoying when reversing

    Many thanks :)
     
  2. Shrek5

    Shrek5 Well-Known Member

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    Hi Vibe,

    Could do with a bit more info, like the age of the vehicle etc. I know you only picked it up Tuesday but not sure if that is used or new. So some info we could do with would be engine, gearbox etc. Also a better (if you can! ;) ) description of revs bounce. Is it when you use the accelerator or is it just at tickover?

    I find sometimes it can be a little difficult to be smooth at low speed because all you have is the brake pedal. In a manual it would be fine as I'd be feathering the clutch pedal to ease forward, is that what you mean?
     
  3. Vibe

    Vibe Member

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    Hi there thanks for the reply :)

    Its a 57 plate 4.2 v8 manual and description of the revs I would say if I'm stuck in traffic or reversing slowly or up a hill (not tick over) it bounces from 1100rpm to 1200rpm which doesn't look like much on rev counter but it's the noise thats abit more obvious, I have a video although its pretty bad it sort of shows what im experiencing if you would like me to upload it?

    Looking at your post it seems like its normal, I just got a little worried when 4 audi technicians never heard of it before and didn't know what I was trying to explain :/

    Thanks again!
     
  4. Shrek5

    Shrek5 Well-Known Member

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    I don't know for sure on the V8 (sure someone else will be able to say for sure) but it is probably an anti stall mechanism whereby as you lift the clutch the rev's rise slightly to prevent you from stalling. Certainly on the wife's 2.0TDi this happens. Not sure why it's needed, we all seemed to manage reasonably well before it was introduced...

    Try this, when stationary, put the gearbox into neutral then raise the clutch pedal (obviously no need to touch the brake/accelerator pedals), if the you get the same blip then I suspect that's the 'feature'. :)
     
  5. Vibe

    Vibe Member

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    I'll give it ago :) thank you for the help! much appreciated and now peace of mind :)
     
  6. Statler

    Statler Old enough to know better Team Daytona Team V6 Gold Supporter A7 Owner Group

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    The s-tronic in the RSQ3 seems to rev when changing D > R and the car will surge a bit. Again probably an anti-stall thing. Once you have realised what it does, it's easy enough to cope with.. (listen to me would you... expert after two days in it lol!)
     
    Shrek5 likes this.
  7. Vibe

    Vibe Member

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    I was hoping it would be easy to cope with but its a pain in the :banghead: in very slow traffic i want to creep forward but soon as i try the car goes above 1000rpm which surges me forward way too fast... so im stop start stop start, as a result me and the missus are being jolted back and forth in the car all the time too... also with the heavy(ish) clutch i've found this car is not traffic friendly at all which surprised me for a 'motorway cruiser' as i was previously told before i brought the car :frown:
     
  8. Shrek5

    Shrek5 Well-Known Member

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    1000rpm seems a little on the high side for tick over, that said, I don't have experience of the V8. Perhaps someone who does could confirm whether 1k rpm is about right.
     
  9. Vibe

    Vibe Member

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    It's not tick over, i tick over around 500rpm i think, the 1000rpm is when i go to pull away and the car automatically goes up to 1000rpm due to this 'Anti Stall' which is bad its traffic is only rolling along at 2-3mph..
     
  10. Sc08 LAB

    Sc08 LAB Active Member

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    Mines the same but blips to 900 I think, I'll double check later.
     
  11. Vibe

    Vibe Member

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    Do you find the same problem as me when it comes to traffic? :/
     
  12. Sc08 LAB

    Sc08 LAB Active Member

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    No it's just fine and if you think about it, when all the simpletons in there bm's and mercs pull off when you press the accelerator yourself you usually rev to about 1200 anyway.
     
  13. Vibe

    Vibe Member

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    Sorry to dig up old threads but has anyone come across a way to remove this "anti stall feature" ? :(
    Would greatly appreciate any help into removing this
    Thanks
     
  14. Vibe

    Vibe Member

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    This is a video showing the extent of how annoying this is.. i idle at 600rpm and with NO pressure to the accelerator the car auto rev's to 1200-1300 rpm
    So when in traffic and i can only go few miles an hour i have no choice but to go 0 or 10mph :mad:

    https://www.dropbox.com/s/8wpu3mwg6xn9n14/IMG_0091.MOV?dl=0

    There must be something or someone out there who can help?? :(
     
  15. Skeets

    Skeets New Member

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    Sorry to resurrect this one but can anyone shed any light on this? I have exactly the same issue but read somewhere that the US produced a TSB to remove the anti stall but haven't heard of anything in the UK
     
  16. MAD4J

    MAD4J Member

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    I have the same issue and it's ridiculous that Audi think that it's a good idea to add this feature.. I contacted Audi Yeovil yesterday and when I asked the tech guy if it could be disabled he just said nope.. And that was then end of that conversation..

    I have however contacted a local company www.tsr-performance.com and they seem confident that they can achieve this via a remap, they tuned and S5 V8 yesterday and are going to go through the code to see where it is..

    I will update you once I've heard back/had it done..
     
  17. Gwsinc

    Gwsinc New Member

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  18. MAD4J

    MAD4J Member

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    Hi Gwsinc, thank you for taking the time to look at this, I have downloaded the app and will test it out later this evening, I'll let you know how it goes.

    Cheers..
     
  19. MAD4J

    MAD4J Member

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    Well I followed the instructions but when going into the hidden menu I have no "Comfort" option, the menu has not changed at all..

    Maybe I'll try it again tomorrow. . Bloody typical luck for me to be fair..

    Even purchased the pro app...
     
  20. MAD4J

    MAD4J Member

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    I was just being blind.. It is there, I've changed driving to comfort and will test tomorrow..

    Cheers..
     
    voorhees likes this.
  21. MAD4J

    MAD4J Member

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    Quick update, it made no difference to the surge in revs when clutch is pressed and accelerator is gently touched.. I am contacting a company to see if they can map the car which will remove this ridiculous anti stall feature. If that fails then I will be getting rid of the car which is a shame as it's immaculate and perfect in every other way and I've only had it 3 months.. It is the worse car I have ever driven when pulling away in 1st gear and takes away any driving enjoyment.
     
  22. Gwsinc

    Gwsinc New Member

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    Sorry that didn't help, sounds like yours is more severe than mine was. If it's not a mapping issue it could be something to do with fly by wire accelerator sensor at the back of the pedal.

    May be worth looking at this and at least re-seating the sensor to see if it helps. No first hand experience doing this but saw it on an episode of Wheeler Dealers (I think on a Maserati..)

    Also - I read somewhere that while setting off you shouldn't be afraid to give her some revs, setting off without accelerating at all or enough will engage anti stall and may strain the flywheel. Not to say your driving style is the issue, but just something to try if you haven't before. I do this naturally from having an S2000 a few years ago that enjoyed a good rev.
     
  23. MAD4J

    MAD4J Member

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    Hi, thank you once again for the reply, I will take a look at the sensor, yes I do give it some revs when pulling off and it's fine when I do this, however it's in stop start traffic that's the problem and I don't want to look like a boy racer..

    I'll check the sensor this evening and update you.

    Cheers..
     
  24. MAD4J

    MAD4J Member

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    Re-seated the sensor but to no avail, I have left a few messages with a Company called TSR in Somerset to see if they are able to dig around in the coding and see if they can disable the option but they aren't too good at responding on email so I'll call them later today..

    Cheers.
     

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