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  1. #1
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    Juddering 2.0 TDI

    My car was fine till the other day when I filled up at local supermarket. Now car judders under heavy accelaration at around 2500 rpm and above. Car starts fine. No lights on. Car is a 55 plate with 83K.

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  3. #2
    Six-speed's Avatar
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    Funny old thing. I refuelled at Sainsbury's last time I filled up and it ran rough and juddered. Next refill I stuck in some inector cleaner and went for a 'branded' fuel. Much better, could've been a bad batch I suppose, although around now I understand that the frost-protection of the diesel is changed by the manufacturers for winter driving. Perhaps that was it.

    Hope that this helps.

  4. #3
    Six-speed's Avatar
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    Now emptied a tank of real deisel. Engine much better, must keep away from that Sainsbury's chip fat!!!
    05 A4 2.0TDi S-Line Avant
    BOSE, cruise, ambient light, steering wheel, seats and an engine!

  5. #4
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    Nice useful post! My A3 2.0 TDi is hesitant from 2.5k up to 4k, filled it up with 55 of Tesco's Value diesel the other day, so I guess that's the cause! Was thinking something was on the way out! What cleaner did you use?

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    Six-speed's Avatar
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    Redex diesel cleaner, bottle is apparently enough to do two full tanks, but I just whacked the whole lot in!

    Probably worth paying the extra 2p a litre for Shell or whatever.

    Cheers
    05 A4 2.0TDi S-Line Avant
    BOSE, cruise, ambient light, steering wheel, seats and an engine!

  7. #6
    Six-speed's Avatar
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    Redex diesel injector cleaner. Just stuck a whole bottle in.
    05 A4 2.0TDi S-Line Avant
    BOSE, cruise, ambient light, steering wheel, seats and an engine!

  8. #7
    M7R
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    I use sainsburys or mainly asda in my tdi, and it seems fine on it, you might have just had a dodgy batch. but i will say that every 10k or so (every 4 months lol) I run some miller +4 through it as thats stuff seems pretty good and aload of the lads on cgti swear by it

    83 GTi - road legal track weapon - now running 2.0l 16v super charged, = FAST!
    Daily hack: Audi A4 Avant S Line 2.0TDI Motech map to 175bhp, Milltek twin exit system, 1/2 leather, DIS, Fan washer jets, B8 rear aero wiper, FK headlight,

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    Good 2 B A Gooner's Avatar
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    Quote Originally Posted by M7R View Post
    I use sainsburys or mainly asda in my tdi, and it seems fine on it, you might have just had a dodgy batch. but i will say that every 10k or so (every 4 months lol) I run some miller +4 through it as thats stuff seems pretty good and aload of the lads on cgti swear by it
    Sorry to butt in guy's What is miller +4?!

  10. #9
    M7R
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    Quote Originally Posted by Good 2 B A Gooner View Post
    Sorry to butt in guy's What is miller +4?!
    its a fuel system cleaner and booster

    http://www.halfords.com/webapp/wcs/s...egoryId_165750

    83 GTi - road legal track weapon - now running 2.0l 16v super charged, = FAST!
    Daily hack: Audi A4 Avant S Line 2.0TDI Motech map to 175bhp, Milltek twin exit system, 1/2 leather, DIS, Fan washer jets, B8 rear aero wiper, FK headlight,

  11. #10
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    did the problem get fixed ? I had a similar problem on my a3 and it got progrssively worse and the fix was an injector part (after going round the houses and being told different stuff by different mechanics)

  12. #11
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    Bottle of millers additive done the trick straight away. Ran tank down with no problems after adding. Next fill I used Shell V Power. Still no juddering.

  13. #12
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    filled up with diesel from Asda and it was fine for a couple of tank fulls, then had to fill up at a sainsburys, it's juddering like mad again!! Somethings gotta be wrong, i.e. MAF or something. Just put 45 of Shell V power Diesel, will see what she's like on the trip home.
    Failing that it's booked to visit Audi tomorrow!

 

 

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