DPF Cleaning

Discussion in 'Motoring' started by mjn, Jul 13, 2019.

  1. mjn

    mjn
    Distinguished Member

    Joined:
    May 24, 2001
    Messages:
    24,783
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Herts, England
    Ratings:
    +13,732
    Anybody had this done? Results? How much did you pay? I’m seeing prices of anywhere between £85 and £750 :eek:

    My 2011 diesel is on 161k miles and i’ve error code which means the DPF is “end of life”. Of course, it may have some life left, but it clogged at 160k and required some assistance shall we say to unclog it.
     
  2. Monty Nine

    Monty Nine
    Well-known Member

    Joined:
    Sep 28, 2013
    Messages:
    1,668
    Products Owned:
    3
    Products Wanted:
    1
    Trophy Points:
    116
    Location:
    Slough
    Ratings:
    +1,148
    We had;
    DPF removed cleaned and refit for £350.
    Then had to change the DPF regen atomiser for £400
    Then had to change the differential pressure sensor for £200.

    Even before the removal and clean my garage said we should just buy a new DPF from China, as he said cleaning never works 100%

    Oh, and the £85 you are being quoted is probably just to squirt some DPF cleaner in and hope it kick starts a regen: useless.
     
  3. mjn

    mjn
    Distinguished Member

    Joined:
    May 24, 2001
    Messages:
    24,783
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Herts, England
    Ratings:
    +13,732
    I had some success with the “pour in the tank” cleaner. But best success was had with a long hard motorway session. I need to pull the codes again this morning to see if regens are working again. If not then something else may be at fault. But it’s been good for over 600 miles now.
     
  4. Delvey

    Delvey
    Distinguished Member

    Joined:
    Jul 20, 2008
    Messages:
    9,683
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Manchester
    Ratings:
    +3,135
    What car?
     
  5. IronGiant

    IronGiant
    Moderator

    Joined:
    Jun 7, 2003
    Messages:
    67,790
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    .
    Ratings:
    +48,688
    You need to ask? :eek:

    :D

    2011 BMW 335d M57 engine
     
  6. mjn

    mjn
    Distinguished Member

    Joined:
    May 24, 2001
    Messages:
    24,783
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Herts, England
    Ratings:
    +13,732
    M57N2 engine.
     
  7. bubs999

    bubs999
    Well-known Member

    Joined:
    Apr 8, 2007
    Messages:
    3,212
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    136
    Location:
    Hampshire
    Ratings:
    +637
    Had an issue with my old 325D, the BMW place I used, had a nightmare getting it to regen. 1 sat in the passenger seat with the laptop connected to the OBD port, then the driver doing loops around a long section of national speed limit road.
    Every time the dpf error came up, it had to be reset, it could take them an hour before the car would successfully do a regen.
    For some reason BMW designed it, so that if there was an error code, the car wouldn't regen until it was cleared.
    It lasted for a while and then came back.
    Traded it in after the third time
     
  8. Delvey

    Delvey
    Distinguished Member

    Joined:
    Jul 20, 2008
    Messages:
    9,683
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Manchester
    Ratings:
    +3,135
    To be honest DPF replacement at 161k is not too bad. Citroen/Peugeot recommend a change at 130k, as do Ford on some engines
     
  9. mjn

    mjn
    Distinguished Member

    Joined:
    May 24, 2001
    Messages:
    24,783
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Herts, England
    Ratings:
    +13,732
    Yeah, i think lifespan on BMW is 120-160k. I pulled the codes again yesterday and the level of soot had dropped to only 14g (IIRC) compared to over 50g before the autobahn sprint. Cleared the errors again and will see how i go this week.
     
  10. mjn

    mjn
    Distinguished Member

    Joined:
    May 24, 2001
    Messages:
    24,783
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Herts, England
    Ratings:
    +13,732
    Booked in with a DPF specialist for DPF removal, testing / cleaning, refitting, DPF reset. They’ll have the car for two days.

    £465 all in. Considerably cheaper than £2k for new one :eek:
     
  11. mjn

    mjn
    Distinguished Member

    Joined:
    May 24, 2001
    Messages:
    24,783
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Herts, England
    Ratings:
    +13,732
    All done. Although they underestimated how much labour it would take to remove and refit the DPF! Oops. Took them 6 hours, instead of the book time of around 3 hours. Apparently it is because there is so much, well, so much engine in the engine bay! :laugh: It is fairly packed in there, not much room for anything.

    [​IMG]

    The vertical axis is m3/hr. And from reading online, anything higher than 400 m3/hr after cleaning is a good result.
     
  12. sparkie1984

    sparkie1984
    Distinguished Member

    Joined:
    Feb 21, 2010
    Messages:
    7,914
    Products Owned:
    1
    Products Wanted:
    1
    Trophy Points:
    166
    Ratings:
    +3,134
    Does the car feel better to drive now?
     
  13. mjn

    mjn
    Distinguished Member

    Joined:
    May 24, 2001
    Messages:
    24,783
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Herts, England
    Ratings:
    +13,732
    No different.
     

Share This Page

Loading...