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Thread: DPF Warning in manual

  1. #1
    Regular Member robzc's Avatar
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    Eek DPF Warning in manual

    Just found this in the owners manual regarding the DPF / Pre Heat warning light:

    "Preheating system 3,

    Flashing (with diesel particle filter)
    Diesel particle filters must be cleaned.
    Continue driving and as soon as the road
    and traffic conditions permit it, increase
    speed to more than 25 mph (40 km/h), at
    which point diesel particle filter cleaning
    will start. The control indicator goes off as
    soon as cleaning is complete. We
    recommend leaving the ignition switched
    on during the cleaning."

    How many of you switch off the ignition at 25 mph??!!!


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    On a Sabbatical
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    WTF!

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    Regular Member dave45040's Avatar
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    Quote Originally Posted by robzc View Post
    Just found this in the owners manual regarding the DPF / Pre Heat warning light:

    "Preheating system 3,

    Flashing (with diesel particle filter)
    Diesel particle filters must be cleaned.
    Continue driving and as soon as the road
    and traffic conditions permit it, increase
    speed to more than 25 mph (40 km/h), at
    which point diesel particle filter cleaning
    will start. The control indicator goes off as
    soon as cleaning is complete. We
    recommend leaving the ignition switched
    on during the cleaning."

    How many of you switch off the ignition at 25 mph??!!!

    LOL - I get your point!!!!!!

    However, what I believe it does mean is that when the light is flashing indicating the DPF is cleaning, you shouldnt park up and switch the engine off until it has finished its cleaning process.

    Incdentally, have many owners actually noticed this happening and, if so, approx how often in time/mileage? I only ask this as in the six months that I have owned my Siggy mine has only ever done this the once!!!!

  4. #4
    Regular Member cameraman's Avatar
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    I've done 13k in my 56 plate Vec 1.9CDti & I haven'yt seen anything unusual yet!

  5. #5
    Regular Member sig63's Avatar
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    Vehicle : Opel Insignia

    Trim : Cosmo

    Engine : 2.0 CDTI

    Year : 2011

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    Normally you will not see this warning light flashing . It will only happen if you're doing constantly city traffic at low speed or long traffic jam.. in that case the DPF cannot clean itself and only it that case the manual suggests "as the road and traffic conditions permit it, increase speed to more than 25 mph (40 km/h), at which point diesel particle filter cleaning will start."
    DPF and city traffic don't go well together... same as diesels and city traffic

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    Regular Member cameraman's Avatar
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    That would explain it, my cars usually trying to make up for the extra 10 minutes I've spent pressing the snooze button in the morning!

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    Regular Member dave45040's Avatar
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    Quote Originally Posted by sig63 View Post
    Normally you will not see this warning light flashing . It will only happen if you're doing constantly city traffic at low speed or long traffic jam.. in that case the DPF cannot clean itself and only it that case the manual suggests "as the road and traffic conditions permit it, increase speed to more than 25 mph (40 km/h), at which point diesel particle filter cleaning will start."
    DPF and city traffic don't go well together... same as diesels and city traffic
    Yep, thats correct, but I guess it must/would also apply to shortish journeys too, where the engine temp doesn't get to the desired temparature (as I believe that the DPF is regenerated normally at the dealers by them getting the engine temparature high enough for it to kick in).

    Incidentally, the ONLY time mine has done it was the day after the DPF had been regenerated at the dealers (as it has been near enough every month due to the cr4p running of the car), which was somewhat strange as I was neither in city traffic (live in the country), stuck in a traffic jam (there aren't many of them over here) or constantly driving at a slow speed, and I had only done about 10 miles or so. To try to cure the running the DPF was actually replaced by VX last week, which seemed to make the car run better for a few days, but now it seems to have gone back to running cr4p - not sure what the dealers will/can try next to help!!!!!!

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