EM TuningChris Nott
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Thread: DPF

  1. #1
    Reverse Gear

    Join Date
    Apr 2010


    I bought an Audi A4 Cab 2.0ltr TDI sline (Registered November 57) in march 2009 with 3000 miles on the clock
    from my local dealership (Bradford Audi).
    By the forth week of driving the car i have had ongoing issues with the DPF (deisel particle filter).
    This is because so i am told that soot gathers up inside the filter and causes the filter to clog up which then the car need to be diverted to the nearest motorway to be driven at a speed of 50 or 60 mph in 5th or 6th gear only when the filter clears will the car then run properly.

    As it is i don't have a problem with this in general as i do regular motorway driving but not daily , the principle of the situation is that the car needs immediate attention if it does not get this the engine management light comes on which then tells me there is a fault with the engine and the turbo cuts out.

    I have raised numerous complaints with the dealership and Audi UK who tell me that i am not driving the vehicle correctly ,and that in order to stop this i should be driving at least 15 miles every morning at the required speed.

    So as i don't do this sort of driving everyday and was not advised of this at the point of sale i would be looking for a like for like vehicle or a full refund but a like for like would or should only be accepted on a sensible timscale as the dealship have advised me that it may take many months in order for them to be able to match my vehicle.

    After i put this information in writing they contacted me via telephone saying that they could replace the whole filter and see if that would fix it so i agreed to let them do this and so they took it away and brought it back with no FOC invoice which then asks the question have they attempted to fix it at all? but no avail i am being taken for a ride its very clear to see.

    I am not a great expert on engines so i am looking for as much feed back as possible as to weather i should use my own expert diagnosis and where to find those experts before i enter judgement against them anyones veiws and advice would be much appreciated as this is my last and only option.
    The car maybe fit for purpose in some respects but not in my case and there is no question as to weather i have been mis sold this vehicle.

    I have gathered some cases same as my own and as i am doing this i am finding that the individuals that have also purchased Audi's on the 07/57 (model) are having the same problem and are being told the same thing (lies).
    I have also found through research that it is mainly people who are buying these Audi's with out right money as no way would a finance company put up with such garbage. So you see you who are targeted have the same rights as those finance companies because believe me if my car was on finance they would have to replace it immediately in order for me to pay them the money its all the same principle and such a civil matter.
    And so you should resort to legal action as i feel this is the only way forward.

    I have even considered a part exchange at BMW as they claim they don't have the same problem.
    Audi have caused me great stress in my career and education and even dropping my children off to school as they failed to provide me with safe transit throughout my everyday life.
    I paid 20'000 (outright) for a suitable vehicle to do this and i am not going to give up no matter what untill i see some justice. wish me luck.

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  3. #2
    Wrath's Avatar
    5th Gear

    Join Date
    Apr 2009
    North East, UK
    It's an interesting case. I have a 2005 2.0 TDI which I assume has a DPF and have had no problems. Sometimes I drive a couple of miles, nothing for several days and then maybe a motorway run. I do know that DPF's across a whole range of makes are known to clog and a bit of hard acceleration and 60-70mph run helps clears the soot but your problem sounds like something else.

    If you want to pursue Audi then drop me a PM.

    Red Audi A4 B7 S-Line with Leather/Alcantara interior

    Current Mods: Painted Brake Calipers, Gear-driven oil shaft assembly, RS4 grille, Debadged, B8 MFSW, Cruise Control, RS4-style Fog Surrounds, Satin Black Cupra R Splitter, RS4 RARB, Clear Corner headlights, 2011 RNS-e, MTEC Drilled and Grooved Brake Discs.

  4. #3
    "Stick a V8 in it!"

    Join Date
    Jan 2008
    Glenrothes, Fife, Scotland
    Do you actually ever give the car a proper run?

    If all you ever do is drive it 2 miles to work then home then its never going to work properly.

    As i said over in the B5 section, the DPF collects up all the soot from the engine, and stores it, then periodically, when it detects the DPF is getting "full", the engine will inject some fuel into the DPF to burn off the soot. This burnoff process ("regeneration") is only done with the engine fully warmed up and the engine operating within certain load sites.

    All it would take is for you to give the car a proper run once a week. Drive to the tesco thats 10-15miles away rather than the one round the corner if you cant go anywhere else, and the engine will take care of itself.

    There are also telltales that the car is trying to do a regen cycle (the idle will increase to around 1000rpm for instance) and if its in the middle of a regen then its highly advised that you let it complete before you shut the engine off (it takes about 10 minutes), otherwise it can try to run the regen from cold on next restart and make driving the car particularly unpleasant.

    You can play the "whine" game, but imo its a bit like moaning that you need to change the oil. Or driving the car until the engine siezes and then moaning because you didnt do an oilchange because you dont normally do that on your daily drive.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
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  5. #4
    Dazmo's Avatar
    6th Gear

    Join Date
    May 2009
    Well i have just driven 425 miles so i guess im ok then, lol

    Maritus Blue Audi A4 3.0 V6 S-Line TDi 275bhp, 585nm Torque



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