1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Is mercedes pulling a fast one on my dpf

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by Aaron Smith, Nov 6, 2019.

  1. Aaron Smith

    Aaron Smith New Member

    Messages:
    9
    Likes Received:
    5
    Joined:
    Nov 6, 2019
    Your Mercedes:
    W204 c220 cdi amg sport 2012
    Hi guys just want to know if this is happend to anyone else I had a recall on my car for a airbag deployment earthing but didn't mention a car software update got a phone car to collect the car later on 5hours later seems weird already and drove the car away and it was in some kind of limp mode engine management light was on drive it back got them to diagnose the problem and came up with dpf error due to new software so they kept hold. Of the car for 5days I had to keep on calling to get an update they asked me to come in for a chat didn't seem to good so after the chat I had with the lead mechinc saying the my car does have a dpf has the box but nothing inside it and that's a the rest why my car was going into limp mode but then I asked my friend that does remap etc. And he said this has happend to him and it was a load of crap as my car was reading all OK during that day when I had my remap are mercedes pulling a fast one for a quick buck please help many thanks
     
    Jim2 likes this.
  2. star

    star Forum Supporter Authorised Forum Supporter

    Messages:
    5,220
    Likes Received:
    666
    Joined:
    Oct 6, 2004
    Location:
    Reading
    Your Mercedes:
    Smart + others :)
    If the dpf had been removed previously and then had a remap to suit, it would drive all ok. However if a software update has been done by Mercedes, it would have overwritten your original map. Mercedes would not have known a remap had been installed.
    We’re your exhaust ends sooty and black?
     
    Kev555, Jim2 and matthew k like this.
  3. CowleyStJames

    CowleyStJames Senior Member

    Messages:
    172
    Likes Received:
    65
    Joined:
    Oct 13, 2015
    Location:
    Oxford
    Your Mercedes:
    Mercedes-Benz C-Class Estate C200 CDI BlueEFF. Executive SE 5dr
    100% in agreement with this.
    Not Mercedes fault here, they applied the software update and its removed the mapping which took into account the DPF delete.
    DPF delete is illegal by the way
     
    Jim2 likes this.
  4. flowrider99

    flowrider99 Senior Member

    Messages:
    2,792
    Likes Received:
    942
    Joined:
    Jul 21, 2014
    Location:
    UK
    Your Mercedes:
    SL500
    As above, you will need to get the map reapplied or a new DPF fitted. The latter is the best option if you don't want the car to fail its next MOT.
     
    Jim2 likes this.
  5. ajlsl600

    ajlsl600 Senior Member

    Messages:
    3,454
    Likes Received:
    1,295
    Joined:
    Nov 18, 2013
    Location:
    france
    Your Mercedes:
    clk3202001,sl6002003 with everything,A class 170cdi auto
    wow.. is their nothing within this wonderful system that tells the operator of the update that the existing install is not std and to exercise caution before proceeding.?.bit like a "window" are you sure you want to do this ? ie call owner before proceeding ... and why i am very wary of ever going for any update on a functioning vehicle.
    that said the owner really should know whats going on with installs/deletes ect on his car and exercise caution when considering a dealer update
    i am not a fan of dpf/egr delete either but, if the prices of this equipment remain at their farcical levels i will certainly be looking into it if the need arises. and am already collecting any info i find on the subject. i dont use my dpf /electronic egr equipped car for any short journeys to try and avoid known issues but that in itself is a nuts situation is it not ? the general view i find on here is if i use this equipped vehicle .on short trips ,ie shops and back it will., dpf egr nox sensors ect bite me in the arse. and if i was the owner from new i would raise the subject of "fit for purpose " as i doubt even one buyer was advised .

    as i understand it ?egr flaps in the manifold are electrically/electronically driven now ?,with it seems no thought to the enviroment they operate in. to me sense would be they stop in an open position or wherever normal opps are not impaired. when a certain load ,resistance(getting but not blocked ) is detected and a warning light comes on . car still runs fine no limp. and you basically have till next mot to sort it out .assuming it gets spotted there?
    this maybe the default, i have yet to find out . but the wrecking of parts of this system due to an obvious operating condition is nuts
     
    Dean Fletcher and Jim2 like this.
  6. ajlsl600

    ajlsl600 Senior Member

    Messages:
    3,454
    Likes Received:
    1,295
    Joined:
    Nov 18, 2013
    Location:
    france
    Your Mercedes:
    clk3202001,sl6002003 with everything,A class 170cdi auto

    my presumably wrong impression ? so long as dpf shows no signs of being tampered with there is no mot prob ?
     
    Jim2 likes this.
  7. M80

    M80 Senior Member

    Messages:
    3,445
    Likes Received:
    650
    Joined:
    Jan 21, 2006
    Location:
    Derbyshire
    Your Mercedes:
    Vito 115 Lwb Dualiner.
    Apparently we only own the car not the software, so MB can do as they like with that.
    It's not going to be worth the expence of restoring to original imo.
    Better to contact the previous owner and hope he had the remap so you can return for it to be restored. As long as it wasn't smoking previously, which is often difficult for the driver to be aware of, that should sort your problem.
    As above if there is no visual evidence of DPF tampering there isn't an MOT issue, if it isn't smoking.

    Lesson is to stay away from MB,
    and tell any future Indie not to update anything.
     
    Jim2, Aaron Smith and ajlsl600 like this.
  8. OP
    Aaron Smith

    Aaron Smith New Member

    Messages:
    9
    Likes Received:
    5
    Joined:
    Nov 6, 2019
    Your Mercedes:
    W204 c220 cdi amg sport 2012
     
    Jim2 likes this.
  9. OP
    Aaron Smith

    Aaron Smith New Member

    Messages:
    9
    Likes Received:
    5
    Joined:
    Nov 6, 2019
    Your Mercedes:
    W204 c220 cdi amg sport 2012
    Yeah I know what you mean I bought it from Evans so they wouldn't of Known but after bought the car 2 years ago I had a check to make sure everything was there and the dpf was there no tampering tbh it looked really new I think mb wanted a quick buck as they don't get payed for a recall and know wants 1k for a new dpf
     
    Dean Fletcher and Jim2 like this.
  10. flowrider99

    flowrider99 Senior Member

    Messages:
    2,792
    Likes Received:
    942
    Joined:
    Jul 21, 2014
    Location:
    UK
    Your Mercedes:
    SL500
    Not any more. The tester is told to fail a diesel if he/she see's any black smoke coming out of the exhaust.
     
    Jim2 likes this.
  11. flowrider99

    flowrider99 Senior Member

    Messages:
    2,792
    Likes Received:
    942
    Joined:
    Jul 21, 2014
    Location:
    UK
    Your Mercedes:
    SL500
    Don't all diesels smoke if there isn't a DPF though!
     
    Jim2 likes this.
  12. ajlsl600

    ajlsl600 Senior Member

    Messages:
    3,454
    Likes Received:
    1,295
    Joined:
    Nov 18, 2013
    Location:
    france
    Your Mercedes:
    clk3202001,sl6002003 with everything,A class 170cdi auto
    less so i believe with the modern real high press systems . as to if a removed dpf will allow to much soot out i dont really know . good question to ask .one would think so as its the reason de existance for DPF.


    anyone on here removed DPF and still obtained a MOT recently ???????????
     
    Jim2 likes this.
  13. M80

    M80 Senior Member

    Messages:
    3,445
    Likes Received:
    650
    Joined:
    Jan 21, 2006
    Location:
    Derbyshire
    Your Mercedes:
    Vito 115 Lwb Dualiner.
    TBH I think all diesels will smoke, but how noticable.

    My earlier Viano V6 didn't descernaably smoke until it developped an issue, even with its DPF it was embarrassing. Having tried many things to resolve I gave up and sold it at a loss to someone who seemingly didn't have issue with it.

    My now 2.1 Vito doesn't smoke, as far as I can tell, and I do look for it. No DPF and I beleive it runs as clean as is possible.
    I know that larger particulates will be emitted.

    Often I drive in traffic and pick up that Paraffin smell, and put it down to a larger diesel wagon up front, an older Landy, or some prat with a stage 1 poor quality remap.

    Prior to my remapping this one I have asked if others have experience of additional and discernable exhaust emissions post remap, as I don't want to choke any poor sods behind.
     
    Kev555 and Jim2 like this.
  14. flowrider99

    flowrider99 Senior Member

    Messages:
    2,792
    Likes Received:
    942
    Joined:
    Jul 21, 2014
    Location:
    UK
    Your Mercedes:
    SL500
    Jim2 likes this.
  15. M80

    M80 Senior Member

    Messages:
    3,445
    Likes Received:
    650
    Joined:
    Jan 21, 2006
    Location:
    Derbyshire
    Your Mercedes:
    Vito 115 Lwb Dualiner.
    You will if it doesn't smoke, and tbh my MOT station don't seem to concentrate too much on smoke emissions.
    A difficult one to answer I would have thought. Some MOT testers might be happy to fail pretty much any diesel.
     
    Dean Fletcher and Jim2 like this.
  16. ajlsl600

    ajlsl600 Senior Member

    Messages:
    3,454
    Likes Received:
    1,295
    Joined:
    Nov 18, 2013
    Location:
    france
    Your Mercedes:
    clk3202001,sl6002003 with everything,A class 170cdi auto

    got you. a bit of a lottery then for the time being ..
     
    Jim2 likes this.
  17. M80

    M80 Senior Member

    Messages:
    3,445
    Likes Received:
    650
    Joined:
    Jan 21, 2006
    Location:
    Derbyshire
    Your Mercedes:
    Vito 115 Lwb Dualiner.
    Reading some text of the link by flowrider it seems the test is pretty lax.
    Revving to 2,500 and return to idle. If the smoke that might impair following drivers vision doesn't clear in 5 seconds the test is run again prior to a fail, with tester discretion.

    If I read that correctly my embarrassing exViano is ok on the road even though it chokes half the world.
     
    Jim2 likes this.
  18. CowleyStJames

    CowleyStJames Senior Member

    Messages:
    172
    Likes Received:
    65
    Joined:
    Oct 13, 2015
    Location:
    Oxford
    Your Mercedes:
    Mercedes-Benz C-Class Estate C200 CDI BlueEFF. Executive SE 5dr
    DofT is on the point of introducing new testing equipment that'll measure particulates coming from a diesel exhaust to ensure its on line with manufacturers quoted outputs.
    That'll detect DPF deletes.
    Also, any smoke coming from a diesel vehicle that came from the factory with a DPF is an instant fail.
    With the fines that are now payable if an MOT tester passes a car that should've been a fail, along with losing there testing licence, the rogue MOT testers will be falling by the wayside.
     
    Jim2, Wighty and M80 like this.
  19. ajlsl600

    ajlsl600 Senior Member

    Messages:
    3,454
    Likes Received:
    1,295
    Joined:
    Nov 18, 2013
    Location:
    france
    Your Mercedes:
    clk3202001,sl6002003 with everything,A class 170cdi auto
    i remember LR idea of reducing emissions bolt a compressor to the motor and pipe the air into the exhaust !! maybe i connect a dyson blower after my 1st box ??
     
  20. OP
    Aaron Smith

    Aaron Smith New Member

    Messages:
    9
    Likes Received:
    5
    Joined:
    Nov 6, 2019
    Your Mercedes:
    W204 c220 cdi amg sport 2012
    No black smoke no smoke at all and no bad smell like I said there was a dpf on my car before it went in to there garage
     
    Jim2 likes this.

Share This Page