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Lumpy start & turnover on 2007 A3 2.0ltr tdi dsg sportback s-line

Discussion in 'A3/S3/Sportback (8P Chassis)' started by leecool, Sep 17, 2011.

  1. leecool
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    leecool Member

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    [Sep 17, 2011]
    Hi Folks, been meaning to ask......

    I recently got a 2007 A3 sportback s-line dsg , when starting the engine sorta judders a little & I have to throttle a little too. Dont get me wrong, the car's running flawlessly, it's just that judder & extra kick to start it thats buggin me . My glow plugs go out in bout 2-3 seconds, is that normal weatha theyre good or bad?(neva had audi b4) or is it the more fkd they get the longer they take to heat up like most diesels? Thats what I thought anyway.
    I mean it never fails to start, but its that slight reluctency is eating at me.
    Does anyone else suffer this?? It doesnt seem like a fault & its hard to try & explain this without it sounding bad if you know what I mean? Car's flying in all other aspect!
    Any sorta ideas welcome!
    cheers guys.
    #1
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  3. Geraldy212
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    Geraldy212 Sportback owner

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    [Sep 17, 2011]
    Suggest you have the car scanned and see what that brings up. Your glow plugs timing is about right, and I don't think that this changes much over their lifetime. Another thing to think about is the battery (4 years old?) and starter motor. Easy to try a known good battery, but the starter is more difficult. Have heard on this site that A3 starter motors can give this kind of trouble. Remember with a diesel there is a high compression to overcome, and they do need a big kick to fire first time. Good luck.
    #2
  4. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [Sep 18, 2011]
    Ok just to clarify before giving any info, so are you saying its the starting part that is a little dodgy or is it immediately after its already started that it is a little ropey?
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  5. tannerpp
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    tannerpp New Member

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    [Sep 18, 2011]
    I had this problem about 3 months ago and thought nothing of it as it came and went and nothing had been flagged up at the previous service. Then just over a week ago I had a problem (see thread: A Happy Ending) and the upshot was one of the Injectors had failed. A linked reply flagged up that a lot of people had issues with '07 plate DSG models (as mine is). I would suggest looking at the thread (if I can find the link I will) and then getting someone to take a look at the injectors - if they are fine, great, if not you may just save yourself a lot of hassle (and possibly cost!). After I had problems with the start, as you are mentioning, the next thing that happened (although it is only with hindsight that I noticed it) was that the car stuttered a little under hard acceleration and wasn't as smooth as it should be. Yours sounds as if it doesn't have this problem, yet! Hope you get to the bottom of it.
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  6. leecool
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    leecool Member

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    [Sep 18, 2011]
    Hi there NHN, its actually as i turn the key, a slight judder as if its not gettin enuff fuel. we are talking seconds here! turn the key & jugg jugg vroom! The car is running like a dream tho, tickover sweet as a nut too! My missus got a 1.4 polo dune & the starting is instant, as on most cars. Its not causing me any problems, just wanted to try & find out about it.
    chheers
    Lee.
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  7. leecool
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    leecool Member

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    [Sep 18, 2011]
    Cheers tannerpp.
    Yeah I see what you mean, but as of yet car is firing on all cyliders when you bury your foot into the shagpile. I have worked on my cars for years & had no probs fixing any niggles etc. but Audi is a different kettle of fish.
    It duz sound like fuel starvation tho. I'l keep searching, thanx for the post.
    #6

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