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DPF Removal - Peugeot 407

  • 18-03-2014 6:44pm
    #1
    INEEDANID
    Closed Accounts Posts: 381 ✭✭


    Hi All

    My DPF is fecked and I have decided to get it bypassed rather than get a new one or have it cleaned. It sound sounds like a good job, the part is removed from the DPF but the DPF is left on the car.

    I have 100,000 miles on the clock.

    There is a guy in Nenagh that does this for €350.

    http://cars.donedeal.ie/carparts-for-sale/dpf-egr-removal-engine-remap-tune-tdi-hd/5611560

    Its a garage on the Borris in Ossary road in Nenagh.

    Anyone use this guy before or have any feedback?


Comments

  • #2
    INEEDANID
    Closed Accounts Posts: 381 ✭✭INEEDANID


    Anyone? :)


  • #3
    Tigger
    Closed Accounts Posts: 16,705 ✭✭✭✭Tigger


    is dpf delete not going to be an nct fail soon or did i dream that?

    edit : it is for the uk mot and will possibly be here

    euro 5 2009 onwards

    http://www.boards.ie/vbulletin/showthread.php?t=2057098911


  • #4
    INEEDANID
    Closed Accounts Posts: 381 ✭✭INEEDANID


    Its not going to be deleted from the system as far as I know it will be bypassed.


  • #5
    Row
    Registered Users, Registered Users 2 Posts: 2,025 ✭✭✭Row


    INEEDANID wrote: »
    Its not going to be deleted from the system as far as I know it will be bypassed.

    You can't bypass the dpf on these engines unless you get it remappped.
    As Trigger said by removing/deleting dpfs will be a thing of the passed within a year or so.

    Btw who told you that your dpf is blocked...?


  • #6
    INEEDANID
    Closed Accounts Posts: 381 ✭✭INEEDANID


    Row wrote: »
    You can't bypass the dpf on these engines unless you get it remappped.
    As Trigger said by removing/deleting dpfs will be a thing of the passed within a year or so.

    Btw who told you that your dpf is blocked...?

    The DPF is being left on the car but part of the inside removed.

    The mechanic said that the car was not being remapped but that no DPF warning lights will appear as it won't be possible for it to get blocked anymore.

    The English MOT is completed by a check to see if the DPF is still there AFAIK which mine will be.

    I've had issues with the DPF since I got the car 40k miles ago, its had forced regens in a garage and had the fluid topped up but is refusing to regen itself now even with a good hard drive. The car has been in and out of limp mode over the last week.

    Several people I've spoken too have advised that the lifetime of the DPF is usually about 100k or less.

    The guy in the garage advised that it would more than likely be blocked, not sure why he would lie as he could make money fitting a new one too.

    What are the alternatives to getting the DPF removed?

    Cleaning - Temporary solution
    New one - too expensive
    Second hand - could have same issue straight away


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  • #7
    Row
    Registered Users, Registered Users 2 Posts: 2,025 ✭✭✭Row


    INEEDANID wrote: »



    The guy in the garage advised that it would more than likely be blocked, not sure why he would lie as he could make money fitting a new one too.


    Get someone with dealer level diagnostics to check the condition/pressure across the filter...other wise your shooting in te dark.

    Limp mode could be many things so again a good diagnostic session will guide you in the right direction.
    INEEDANID wrote: »
    What are the alternatives to getting the DPF removed?

    Cleaning - Temporary solution
    New one - too expensive
    Second hand - could have same issue straight away

    New dpf's can be bought for €200-300..;)


  • #8
    lassykk
    Registered Users, Registered Users 2 Posts: 3,622 ✭✭✭lassykk


    Hi,

    I've had this done on my 2.0HDi 407 coupe and I also did it myself on my old 2.2 HDi 406 coupe and also did a few others 2.2HDi 406 coupes along the way for members of the 406 owners club so I'll try help out with some advice if I can.

    The DPF problem first emerged on my old 2.2 HDi where I was getting the same problems as you i.e limp mode and faults on the dash. To temporarily solve the problem I got the DPF knocked out completely (unnecessary as three or four big drill holes will do the same thing and create less hazardous material from the DPF - it's nasty stuff so don't breath in the fumes if you do this as a DIY effort). This solved the limp mode problem for me but I had a permanent anti-pollution fault which was just annoying.

    From doing a lot of research I discovered a cheap OBDII tool (Galletto) which allows you to connect your car to your laptop to perform ECU backups and to remap your ECU. I also found a remap file that had removed the DPF element from the ECU and also had remapped the ECU for more power (a happy by product). This resulted in my car having no DPF problems ever again and far more power.

    Sadly the story was not so good when I did this to my 407 coupe. Firstly, the tool I had was not compatible with my 2.0HDi engine so I had to get the remap done professionally. I bought the car in the UK and was recommended to use Total Tuning in Wales to do the remap to remove the DPF from the ECU. This didn't go exactly to plan. The remap was done and I drove home thinking everything was fine and that once I drill out the DPF from the exhaust I would be in the same position as with my 2.2 HDi. Sadly when I drilled out the DPF I immediately got an anti-pollution fault :-( Despite numerous attempts to contact Total Tuning he completely ignored my calls / emails. I didn't know what to do so my mechanic mate suggested partially reblocking the holes I had drilled in the DPF to try get the pressure in the sensors to read within the right parameters. To do this we used wire wool and stuffed the holes in the DPF with it which resulted in less pressure after the DPF than before the DPF which was enough to keep everything happy. 15,000 miles later and everything is still running nicely so it ended up OK in the end. However the remap was a complete waste of money (£180).

    Now on to your problem:
    INEEDANID wrote: »
    The DPF is being left on the car but part of the inside removed.

    The mechanic said that the car was not being remapped but that no DPF warning lights will appear as it won't be possible for it to get blocked anymore.

    OK this alone will not solve your problem. If your mechanic is only going to partially remove some of the insides of the DPF and leave the remainder there and do nothing to the ECU you will get a regular fault light on your dash "Anti-Pollution Fault" or something similar. This may or may not send you into limp mode. Now I'm no mechanic but to my knowledge the ECU registers a DPF fault if the pressure before and after the DPF is not within a specific range. There is a sensor either side of the DPF to measure this pressure. If your mechanic just drills some holes in the DPF to free it up the pressure either side of the DPF will read the same and you will get a fault.
    INEEDANID wrote: »
    The English MOT is completed by a check to see if the DPF is still there AFAIK which mine will be.

    I'm not sure if this has been confirmed but I can't imagine how the English MOT will check this. Unless they connect up to the sensors I mentioned above (which may only exist on French DPFs) they won't know. From an emissions point of view I've never had any problems with the DPF removed and have gone through numerous NCTs without the DPF.
    INEEDANID wrote: »
    Several people I've spoken too have advised that the lifetime of the DPF is usually about 100k or less.

    That's correct. Doing well to hit 100,000 miles.
    INEEDANID wrote: »
    The guy in the garage advised that it would more than likely be blocked, not sure why he would lie as he could make money fitting a new one too.

    For €350 if all he is doing is drilling some holes in the DPF he is making a fortune out of this option. That could be why he's not recommending a new one as they are bolt off / bolt on and doubt he could get away with charging €350 for that!
    INEEDANID wrote: »
    What are the alternatives to getting the DPF removed?

    Cleaning - Temporary solution
    New one - too expensive
    Second hand - could have same issue straight away

    As pointed out elsewhere you can get DPFs for far less than what the dealer quoted if you want to go down that route - First link I came to ebay:

    http://www.ebay.co.uk/itm/PEUGEOT-406-DPF-PARTICULATE-FILTER-2-0-HDi-2-2-HDi-99-/130402510534?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1e5c9866c6


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