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  1. #1
    Join Date
    Jun 2003
    Location
    Brackley, Northants, England.
    Posts
    821

    Diesel Particulate filter and system

    Hi Guys

    Apologies for mentioning the Diesel word.

    Is it possible I could have a bit of advice please from those with some Diesel experience?

    My Daughter has a 2010 Ford Kuga 55,000 miles. It's been a brilliant vehicle for the 7 years she's owned it but by necessity, its had to do its fair share of the school runs. Bad we now know.

    A couple of months ago the EML light on the dash came on.
    She took it to a local garage who forced a DPF regeneration and the EML light cleared. A few days later she had to go on a 200 mile round trip.
    On the way home on the M1 the EML light came on again, it went into limp mode so she called the AA.

    The AA carried out a few checks and diagnosed a sensor fault. By a strange coincidence he had the correct sensor on board which had been previously been bought for a 2WD Kuga, which he had to recover. The sensor turned out to be a sensor for a 4WD Kuga and unsuitable at the time. He said it had been in a box in his van. He fitted the sensor forced a DPF regeneration and the car has been fine for the last couple of months. A few days ago the EML light came on again and the vehicle went in to Limp Home mode. She booked it in to the Main Dealer for diagnostics and a solution. After looking at it they advised her that it would cost in excess of £4k to fix.

    I went with her to collect the vehicle and they said they would have to replace the complete DPF system which is clearly more than the vehicle is worth.

    It says the following on the Invoice:-

    Carried investigation to EML light on Dash.
    Found DPF fault.
    Blocked DPF sensor + Pipe fault.
    Recommend to replace first and carry out regeneration.
    Possible fault to wiring to DPF sensor.
    SPD say DPF is blocked.

    It then goes to list all the tyre sizes!

    The Main dealer clearly didn't want to look at it further or offer any further diagnosis only that they wanted to replace the whole system. I got the feeling that they didn't have the knowledge or experience to diagnose the fault properly so just change everything!

    Never having owned a Diesel I'm at a bit of a loss to help particularly as I'm 40 odd miles away. I see on the web there are places that offer to clean the DPF. Is this the way to go first? I also found this interesting and somewhat encouraging link:-

    https://www.oilem.com/blog/dpf-clean...-dpf-cleaning/

    So the bottom line is does anyone know of anywhere within say 40 miles of Rugby that are knowledgeable and can have a proper go at sorting this out without spending silly money. It really would be a shame to write off this otherwise good condition vehicle.

    Thanks for any advice.

    Regards

    Denis

    If you take something to bits often enough, eventually you'll have two of them......


    GD427E039

  2. #2
    Join Date
    Mar 2004
    Location
    Paignton
    Age
    53
    Posts
    1,451
    The DPF on my Mini wouldn't regen the same engine in Ford, Mazda, Citroen and Peugeot, Ford recommends replacing it at 75k, it was cheaper to replace it myself, just had to tell the car it had been changed. It seems short journeys just kill them.
    HTH Stu

  3. #3
    Join Date
    Mar 2004
    Location
    Paignton
    Age
    53
    Posts
    1,451
    Just typed this but it disappeared
    If you have 2 pipes to the dpf sensor. Make sure they are the right way round. Someone got mine wrong and that bought up lots of codes.

  4. #4
    Join Date
    Jun 2004
    Location
    Northampton
    Posts
    1,573
    Hi Denis
    Hope you’re keeping well and getting on with that Cobra in this decent weather. I had a diesel 3 series BMW that used to suffer with clogging up of the dpf filter not enough to put the eml light on but enough to increase the pressure readings. I used to take it to Autobarn in Northampton who are an independent BMW and Mercedes specialist and they did a clean on it followed by a forced regen. That brought the readings back to normal. I’d certainly think a clean is worth a try. Sounds like the garage you took it to just wanted to sell you a replacement car!
    Hope you get it sorted.
    Dek

  5. #5
    Join Date
    Feb 2011
    Location
    Northampton
    Age
    41
    Posts
    3,861
    I, too, tend to take the tintops to Autobarn for work I can't/won't do myself.

    Never used these people, but they are local to you Denis and they actually remove, dismantle and clean the DPF rather than an injected chemical solution: https://www.thedpfcleaningco.co.uk/d...g-in-rugby.php
    My DeDion build diary..
    Hon Sec of the Digidash branch of the Unpopular Kit Car Design club

  6. #6
    Join Date
    May 2014
    Location
    Birmingham
    Age
    42
    Posts
    714
    In my experience with the wife's Nissan Juke, always get an advanced code check, it was a sensor on the Juke then the re-generation works fine.

    In fact a lot of times the DPF is NOT blocked at all, it just throws the light as the sensor is related.

    I bought myself a AUTEL MaxiPRO MP808K advance OBDII computer, this will perform a full re-generation and saved me £££'s already

    Good luck.

    Alan.
    AK Gen II delivery date Oct '15
    IVA pass Dec '18.
    On the road Jan '19
    GM LQ4 364ci, LS9 cam, Omex 710.
    Tremec T56 Terminator.

  7. #7
    Join Date
    Jun 2003
    Location
    Brackley, Northants, England.
    Posts
    821
    Guys

    Thanks for taking the trouble to reply to this annoying little problem. The suggestions are very much appreciated.

    I hadn't come across that place in Rugby Aaron, That sounds like a plan.

    The funny thing with that Ford Garage, Derek, is they didn't make any attempt to sell her another car nor did they charge her for the diagnostic which was unusual, but very welcome, as their going rate is apparently £114 per hour. I really don't think they wanted the job unless they changed everything related. The guy on the service desk said they've had a another vehicle in with a similar fault that they've had in the workshop for several months and they still can't find out what's wrong with it. It doesn't exactly inspire confidence.

    I'll send you a separate mail Derek.

    Thanks again Guys

    Denis

    If you take something to bits often enough, eventually you'll have two of them......


    GD427E039

  8. #8
    Join Date
    Mar 2005
    Location
    Northampton
    Posts
    1,065
    Welcome back Denis !

    Last time my diesel played up i took it to Diesel Care Services in Wellingborough who seemed to know their stuff. I was impressed when I saw a guy tapping a thread in a component by hand.

    The other solution I’d suggest (somewhat less helpfully) is to buy a diesel Honda as my day cars have been diesel Civics for 6 years with no problems at all.
    David (AKA Firestarter29)

    Lead, follow, or get out of the way.

  9. #9
    Join Date
    Jul 2016
    Location
    Manchester
    Age
    48
    Posts
    52
    Do you have any fault codes? most of the time the dpf is not at fault its another issue,
    because all of the engine emissions must be correct for the scheduled regen to happen
    also incorrect oil level or not having enough diesel in the tank. (most vehicles need over 1/2 tank full)

  10. #10
    Join Date
    Jun 2004
    Location
    Northampton
    Posts
    1,573
    Quote Originally Posted by Firestarter29 View Post
    Welcome back Denis !

    Last time my diesel played up i took it to Diesel Care Services in Wellingborough who seemed to know their stuff. I was impressed when I saw a guy tapping a thread in a component by hand.

    The other solution I’d suggest (somewhat less helpfully) is to buy a diesel Honda as my day cars have been diesel Civics for 6 years with no problems at all.
    I think the main problem as Denis’s daughter and I found is doing short journeys when conditions for a regen aren’t met. That’s why I’ve gone back to petrol. You were probably doing longer journeys in yours David but I won’t take anything away from the incredible reliability of Honda and Japanese in general. Anyway that’s all history for you now as you’ve gone rogue and electric!
    Dek

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