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  1. #1
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    A4 2.0TSI - Acceleration lag on startup

    Hey guys,

    A family member has an A4 Avant and on startup when it's cold, if you try and accelerate when its stationary or moving slowly there is a massive lag before anything happens. It's hard to explain but it's definitely not the lag of a petrol engine without a turbo.

    I did try and search the forum but couldn't find anything. Is this like anything that anyone has heard of? I've tried doing an accelerator reset thing which didn't work.

    It's a 2010 A4 2.0TSI Automatic Quattro Avant. It's only done 10k.

    Cheers
    Audi A3 2007 2.0TDI 170 Quattro S-Line Sportback, fully kitted

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  3. #2
    ScottishS3's Avatar
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    It could just be the power band. The turbo doesn't seem to kick in till mid range revs. Mine was like that until I had the engine rebuilt and the new ecu update and now it's like a totally different car. It has much more power in the lower rev range now and no turbo lag like it did before.
    2009 Audi A4 2.0 TFSI S line, Misano Red, 19" Black Edition Rotors, RS4 Grille, Sat Nav, AMI, Bluetooth, Phone & Voice Prep, CD Changer, Gloss Pack, Heated Seats, Cruise Control, Electric Folding Mirrors, S line Suspension, Dynamic Boot Spoiler, K&N Typhoon Induction Kit



  4. #3
    Daggerit's Avatar
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    I don't know for sure but my s-tronic seems to slip the clutch a lot just after startup when it's cold. Especially noticeable if it is trying to get up a slope as well.
    Daytona Grey A4 3.0 TDi Quattro S-Tronic Black Edition



  5. #4
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    Quote Originally Posted by Daggerit View Post
    I don't know for sure but my s-tronic seems to slip the clutch a lot just after startup when it's cold. Especially noticeable if it is trying to get up a slope as well.
    Interesting, I noticed this morning that when I went to accelerate out of a junction, it revved and then clunked before it went forward. I haven't tried going up a hill yet, but I will try. Sounds like it could be similar?
    Audi A3 2007 2.0TDI 170 Quattro S-Line Sportback, fully kitted

  6. #5
    Daggerit's Avatar
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    Could be, don't know if it's just a cold clutch or what?
    Daytona Grey A4 3.0 TDi Quattro S-Tronic Black Edition



  7. #6
    AjM
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    I am not sure about S-Tronic but the Multi tronic 7 speed defo suffers when its cold. But after about 20 secs its fine, it is usually just the first shift.

  8. #7
    Anthony566's Avatar
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    My 2013 A4 defiantly has something limiting the car on cold startup as you cannot put your foot down when it's just been started it takes a few seconds .... I was assuming they had something in the ecu doing this ?? Or am I wrong and I need to be heading back to the garage ??
    2013 A4 2.0 TDi 177 quattro Black Edition - Glacier White

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    Cyprio's Avatar
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    No I don't think you're wrong, my car does a similar thing.
    On a cold start, when I'm reversing out of my garage, and then change gear to move forward, there's always a few seconds delay before anything happens.
    MY2014 Ibis White S4 Black Edition

  10. #9
    viceroy's Avatar
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    Quote Originally Posted by AjM View Post
    I am not sure about S-Tronic but the Multi tronic 7 speed defo suffers when its cold. But after about 20 secs its fine, it is usually just the first shift.
    It wont be a multitronic because its Quattro.
    Either s-tronic or tiptronic.
    | 2009 A4 3.0TDI quattro tip | Ice Silver | 19" OEM RS4 style wheels | PDC | Sunroof | Black Leather | Symphony Radio | Aftermarket Navigation & DVD | RS4 mesh grille | Custom mesh fog grilles |

 

 

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