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

Dpf blocked.

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by ncarey265, Apr 3, 2019.

  1. mrmb

    mrmb Senior Member

    Messages:
    185
    Likes Received:
    61
    Joined:
    May 9, 2018
    Location:
    Galway
    Your Mercedes:
    W204 C200 CDI Sport Edition 125 2011 / W215 CL600 Bi-Turbo M275 2002
    If you will drive longer journeys even in the city there shouldn't be an issue as somebody said it. If you will do only short journeys then you will have a problem. My car got the dpf issue when intake manifold flaps started acting weird and then DPF Pressure Sensor went on it causing issues. After two parts have been replaced, no more problems.
     
  2. allybassman

    allybassman Member

    Messages:
    13
    Likes Received:
    10
    Joined:
    Aug 12, 2018
    Your Mercedes:
    2012 C350 Estate
    100% agree, you can tell when it's gearing up for one, I find that the car gets up to temperature quicker, then all of a sudden the engine note changes, the idle speed increases and I know I have to drive until it finishes... not a bad thing in a C350 ;-0

    My car takes the mick sometimes though. I drove to my parents a couple of weeks ago, 40 miles on the motorway at a decent pace. When I pull onto their road, the DPF regen starts. Cue me turning around and going for a drive until it completes.

    Dam you, Car OCD!
     
    Wighty and Dean Fletcher like this.
  3. Dean Fletcher

    Dean Fletcher Senior Member

    Messages:
    396
    Likes Received:
    125
    Joined:
    Mar 24, 2018
    Your Mercedes:
    Mercedes e 250 coupe AMG 2009
    I had a cracked bolt on the inlet manifold then 4 weeks later a dpf pressure sensor then 6 weeks later a exhaust temp sensor went all comes in line eventually.
     
  4. OP
    ncarey265

    ncarey265 Active Member

    Messages:
    43
    Likes Received:
    4
    Joined:
    Jan 17, 2018
    Your Mercedes:
    C-Class c220 sport bluetech 64 plate 2.1L
    Ok so I have managed to plug and obd reader I had and clear the engine management light fault (dunno if I've done the right thing) but I'm hoping I can fill it up with fuel and go for a blast to now force a regen since a regen wouldn't happen with the light on.

    I do enough driving for regents to happen. I drive 18 miles to work and 18 miles back I think my issues has been not enough fuel in the tank for a regen to kick in
     
  5. OP
    ncarey265

    ncarey265 Active Member

    Messages:
    43
    Likes Received:
    4
    Joined:
    Jan 17, 2018
    Your Mercedes:
    C-Class c220 sport bluetech 64 plate 2.1L
    Screenshot_20190403-185600_Drive.jpg
     

    Attached Files:

  6. Steve@Avantgarde

    Steve@Avantgarde Forum Supporter Authorised Forum Supporter

    Messages:
    6,700
    Likes Received:
    854
    Joined:
    Dec 8, 2009
    Location:
    Bristol/Somerset
    Your Mercedes:
    Mercedes-Benz C32AMG, SL55AMG, C320CDI Sport Edition Estate and SLR McLaren Coupe Roadster.
    It won't regen if the soot level is too high and with the engine in limp mode, for various reasons.

    The advice was given at the start, you need to get it on STAR, likely you will need a new DPF pressure sensor, a software update to the engine ECU and then you can force regen it.
     
  7. OP
    ncarey265

    ncarey265 Active Member

    Messages:
    43
    Likes Received:
    4
    Joined:
    Jan 17, 2018
    Your Mercedes:
    C-Class c220 sport bluetech 64 plate 2.1L
    But with the light now being off and not in limp mode will a force regen now work?

    I dont have alot of money till end of month had a busy couple of weeks so I'm abit stuck at the moment.
     
  8. LostKiwi

    LostKiwi Senior Member

    Messages:
    16,585
    Likes Received:
    7,191
    Joined:
    Aug 25, 2006
    Location:
    Midlands / Charente-Maritime
    Your Mercedes:
    '93 500SL-32, '01 W210 Estate E240, 02 R230 SL500 (Malcolm Spec), 04 Smart Roadster Coupe
    You can't force a regen by going for a drive. It will only regen if all parameters are in the right area - that includes soot level. As Steve said to force a regen requires Star and very likely a sensor and firmware update.
     
  9. OP
    ncarey265

    ncarey265 Active Member

    Messages:
    43
    Likes Received:
    4
    Joined:
    Jan 17, 2018
    Your Mercedes:
    C-Class c220 sport bluetech 64 plate 2.1L
    Ok so I may have made things worse. I've rest the engine light will this come back on if there still a problem or will I only know now if there is still a problem when it blocks all together?

    Can anyone reccomend a local indie with star I live in west Lancashire and an idea how much it will cost me to have a diagnostic start check?

    Thanks for all your help
     
  10. John Laidlaw

    John Laidlaw Senior Member

    Messages:
    18,820
    Likes Received:
    4,877
    Joined:
    Nov 15, 2013
    Location:
    Wirral
    Your Mercedes:
    UnMercs BMW i8 Volvo XC90
  11. Botus

    Botus Senior Member

    Messages:
    2,813
    Likes Received:
    481
    Joined:
    Jul 29, 2014
    Location:
    UK
    Your Mercedes:
    S500/2010/500
    lots of the higher end diagnostic kit will allow a forced regen so STAR is not the only option.

    but software updates and the right sensor would be best done by a good indie
     
  12. Nav Afzal

    Nav Afzal New Member

    Messages:
    6
    Likes Received:
    0
    Joined:
    Mar 25, 2019
    Your Mercedes:
    C350/2014/2.987CC
    SOT and apologies for hijacking posters thread but does the DPF build only occur if the car is not driven enough ? what would happen if the car was not driven for weeks/days on end, does the DP filter build up ?
     
  13. Blobcat

    Blobcat Moderator

    Messages:
    11,610
    Likes Received:
    1,741
    Joined:
    Feb 8, 2006
    Location:
    Near Grange Moor (not Wakefield...)
    Your Mercedes:
    R171 SLK280 3.0, Land Rover 110 County SW
    Not an issue when it’s not driven, it’s frequent very short journeys that are the issue.
     
  14. Nav Afzal

    Nav Afzal New Member

    Messages:
    6
    Likes Received:
    0
    Joined:
    Mar 25, 2019
    Your Mercedes:
    C350/2014/2.987CC
    I definitely need to start driving mine then as most of my mileage last year was very short drives up and down the A50 to warm up the engine and keep it ticking over. Thanks Blobcat.
     
  15. Gazwould

    Gazwould Senior Member

    Messages:
    418
    Likes Received:
    150
    Joined:
    Oct 28, 2018
    Your Mercedes:
    S204 OM651

    The flawed DPF system has many enemies and some very simple ones at that .


     
  16. Capra

    Capra Senior Member

    Messages:
    2,312
    Likes Received:
    582
    Joined:
    Jan 27, 2018
    Location:
    Gloucestershire
    Your Mercedes:
    W204 2013 C350 CDI Pan roof
    Mine did the same when I drove to the airport, no choice but to park up. Imagine if you had never heard of this before, you would park up as normal.
     
  17. OP
    ncarey265

    ncarey265 Active Member

    Messages:
    43
    Likes Received:
    4
    Joined:
    Jan 17, 2018
    Your Mercedes:
    C-Class c220 sport bluetech 64 plate 2.1L
    Hi my car is currently in MB Tech in warrington. They have told me it's a faulty pressure sensor fine ok I'll pay for it get sorted but they want an extra £200 to do a force regen which I think is daylight robbery. If I get then to replace sensor clear codes and I take the car will it regen itself? Without paying them £200 to do it?
     
  18. 400ixl

    400ixl Senior Member

    Messages:
    307
    Likes Received:
    89
    Joined:
    Feb 21, 2016
    Location:
    UK
    Your Mercedes:
    E250 AMG Sport Convertible
    It may be that they are going to have to do an ECU update in order to get it to do a forced regen, so worth asking them why it is this cost. Otherwise its just a case of kicking it off and getting out of ear shot of the noise it will make.

    They could of course be having someone stay with the car whilst it is doing the regen and charging for that labour.
     
  19. OP
    ncarey265

    ncarey265 Active Member

    Messages:
    43
    Likes Received:
    4
    Joined:
    Jan 17, 2018
    Your Mercedes:
    C-Class c220 sport bluetech 64 plate 2.1L
    He never said anything about an ECU update just that they need to tell the car to do a regen.

    They basically wants £330 to replace a pressure sensor and to tell the car to do a force regen.
     
  20. 400ixl

    400ixl Senior Member

    Messages:
    307
    Likes Received:
    89
    Joined:
    Feb 21, 2016
    Location:
    UK
    Your Mercedes:
    E250 AMG Sport Convertible
    The sensors are around the £100-115 range depending on which one it is and then you will have at least an hours labour for fitting of that which will be again in the £100+ range for a dealer. So they are probably adding another hours labour for doing the regen.

    Do you have a local independent, they would probably be in the £200 range for the whole job.
     

Share This Page