DIY – Clean SOOT & ASH from your Car’s DPF (Diesel Particulate Filter)

Home Forums Life & Stuff … Cars DIY – Clean SOOT & ASH from your Car’s DPF (Diesel Particulate Filter)

Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • #15116
    UK Sentinel
    Moderator
    • Posts 3646
    • Skipper

    So our Daughters Fiat 500 recently had issues with its DPF (Diesel Particulate Filter) warning light and after using STP Diesel Particulate Filter Cleaner to remove the SOOT, fixed the issue, alas by removing SOOT, this leaves ASH and over time ASH which cannot be removed by the car ( forced regeneration) and has to be removed manually.

    SOOT – The DPF traps the soot generated as a part of the normal operation of a diesel engine so that it is not sent into the environment. The process of regeneration enables the vehicle to clean the filter so it can trap more soot.

    ASH – Ash accumulates in the DPF over extended use, as the incombustible material left behind following filter regeneration and soot oxidation. The ash consists of various metallic compounds originating from lubricant additives, trace elements in the fuel, and engine wear and corrosion products.

    So given the age of the FIAT 500 1.3 Diesel and the fact the DPF warning light has been on more often over the recent months, I decided that ASH was probable causing issues and needed to be removed.

    So getting to the science (short version) of cleaning the DPF at home, seems to remove both ASH and SOOT, both an ACID and separate Alkaline solution is needed, This video (https://www.youtube.com/watch?v=Zw-EAc_Lpv8)  the presenter tries 9 different chemical solution ranging from Drain Cleaners to Dishwasher Tablets.

    Seems Dishwasher Tablets removes both SOOT and ASH by pre-soaking over 24 hours.

     

     

    In a completely sane world, madness is the only freedom (J.G.Ballard).

    #15117
    UK Sentinel
    Moderator
    • Posts 3646
    • Skipper

    [Disclaimer- Copy this at your own Risk]

    So I removed the DPF from the FIAT (easier than I thought it would be) and filled a bucket of water with warm water and used 7 dishwasher tablet with the small ball removed (post rinse I think it is) and dissolved this into the bucket of water .

    I then using a plastic milk bottle, placed the DPF into the bucket and poured the water into the top of the exhaust and repeated this for 20 minutes.

    I then waited a couple of hours and then repeated this process again, I then left the DPF in the bucket over night and repeated the process again in the morning. as you can tell from the black on the grass (SOOT) (above pic) and the color of the water red (ASH) (below pic) the water has removed both SOOT and ASH.

    Note: I did use two buckets of water as SOOT made water in first bucket very dirty.

    Then using a hose pipe I sprayed both ends of the DPF just to remove any loose material and allowed the DPF to dry for the rest of the second day (very important DPF must be dry on the inside).

    DPF was then  re-attached to car and the DPF warning light came on, I removed the fault code with my ODB Scanner and then took the car for a 30 minute drive just to make sure there was no damage to DPF pressure Sensors etc.

    DPF had a lot more SOOT in it than I had originally thought and so far 4 weeks later, DPF warning light has not returned and car runs very smoothly.

    In a completely sane world, madness is the only freedom (J.G.Ballard).

    #15121
    Grisu
    Participant
    • Posts 470
    • Addict

    Well done, congrats!

    • This reply was modified 1 week ago by Grisu.
    #15123
    UK Sentinel
    Moderator
    • Posts 3646
    • Skipper

    Dishwasher tablets are one of life’s little miracles

    In a completely sane world, madness is the only freedom (J.G.Ballard).

    #15124
    Adnan008
    Participant
    • Posts 10
    • Regular

    Dishwasher tablets are one of life’s little miracles <noscript></noscript>

    as long as you don’t eat it

Viewing 5 posts - 1 through 5 (of 5 total)
  • You must be logged in to reply to this topic.