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

C250 Engine Management Light

Discussion in 'Engine, Drivetrain, Fuel and Exhaust' started by Samo, May 31, 2019.

  1. Samo

    Samo Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Nov 26, 2017
    Your Mercedes:
    2013 c250 amg
    Hi all,

    I have mercedes c250 2014, last week engine management light appeared, took it to local mercedes specialist, they diagnosed it as dpf issue, they told me they will clean it , after 3 days had the car back, it was fine for couple days, after that the same light appeared again, this time they diagnosed it as EGR, later on they said its air flow meter, they changed the air flow meter , again same issue same light, now they are saying could be electric faults ,just wondering if anyone came across this kind of issues, any help greatly appreciated.
     
  2. ajlsl600

    ajlsl600 Senior Member

    Messages:
    3,037
    Likes Received:
    1,093
    Joined:
    Nov 18, 2013
    Location:
    france
    Your Mercedes:
    clk3202001,sl6002003 with everything,A class 170cdi auto
    wondering ,which specialist ? would have thought correct code reader( star or similar ) would have provided more specific diagnosis of actual issue . and that dpf codes would NOT be much like egr or air flow. but i stand to be corrected .....
     
    Wighty likes this.
  3. Wighty

    Wighty Senior Member

    Messages:
    6,622
    Likes Received:
    3,764
    Joined:
    Aug 4, 2016
    Location:
    Sunny Essex
    Your Mercedes:
    W211/E320cdi/2009 and CLK200k 2009
    Yep, as above , are they an MB Specialist with STAR diagnostic equipment ?
     
  4. OP
    Samo

    Samo Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Nov 26, 2017
    Your Mercedes:
    2013 c250 amg
    Apparently he is MB specialist,I absolutely have zilch knowledge about cars so whatever they says I go with them, computer showing airflow meter/sensor fault, the car accelerating is really poor, beside fuel consumption is shockingly bad, as I have mentioned they changed the air meter but still have the same issue.
     
  5. LostKiwi

    LostKiwi Senior Member

    Messages:
    19,099
    Likes Received:
    8,918
    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
    Where are you based? Maybe we can suggest a better Indy...
     
  6. ajlsl600

    ajlsl600 Senior Member

    Messages:
    3,037
    Likes Received:
    1,093
    Joined:
    Nov 18, 2013
    Location:
    france
    Your Mercedes:
    clk3202001,sl6002003 with everything,A class 170cdi auto
    if someone changed parts and that fault still exists after being cleared ? seems to me wiring/connections to/from that part may be suspect and possible no issue with part itself .what fault codes were ACTUALLY RECORDED if that info is not forthcoming its likely time you went somewhere where it is.
     
    Wighty likes this.
  7. OP
    Samo

    Samo Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Nov 26, 2017
    Your Mercedes:
    2013 c250 amg
    Based at Leicester.
     
  8. OP
    Samo

    Samo Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Nov 26, 2017
    Your Mercedes:
    2013 c250 amg
    I really dont know, that's what they are telling me, sofar costing me around £600 and and nowhere near resolving the problem.
     
  9. V6Matty

    V6Matty Senior Member

    Messages:
    5,783
    Likes Received:
    771
    Joined:
    Aug 1, 2012
    Location:
    Newark, Notts
    Your Mercedes:
    S212/10/E350(His) W169/2005/A180 (Hers)
    Who did you use already?

    You’ve got a couple of choices but both are a little drive from Leicester, though they are people I would recommend personally
     
  10. OP
    Samo

    Samo Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Nov 26, 2017
    Your Mercedes:
    2013 c250 amg
    they are based about Melton road, I dont mind taking it outside of Leicester, as long as the car get fixed properly.
     
  11. V6Matty

    V6Matty Senior Member

    Messages:
    5,783
    Likes Received:
    771
    Joined:
    Aug 1, 2012
    Location:
    Newark, Notts
    Your Mercedes:
    S212/10/E350(His) W169/2005/A180 (Hers)
    Okay you have Mercland over in Nuneaton or MB Centre in Nottingham, they’re both busy places but will look after you.
     
  12. OP
    Samo

    Samo Member

    Messages:
    11
    Likes Received:
    0
    Joined:
    Nov 26, 2017
    Your Mercedes:
    2013 c250 amg
    Thanks very much indeed.
     
  13. Rash777

    Rash777 New Member

    Messages:
    3
    Likes Received:
    0
    Joined:
    Sep 10, 2019
    Location:
    South Africa
    Your Mercedes:
    C250 Cdi 2013 OM651
    Hi there, I know this thread is a few months old, but I need some help here, been searching lots of forums and come up with nothing helpful, my w204 c250 CDI 2013 model, limp mode, engine light on, after scanning it comes up with air mass sensor.


    So just for some history, 4 months or so ago, it did this, I sent it to a mechanic who told me I need to get an airflow meter, long story imported one and it took just over a month, changed it still the same. then he had the car with him for 2 weeks. Called me and said that it was fixed, collected it paid a small fortune, the car went perfectly fine for about 3 months.... then last week same problem. Now, this guy has moved his workshop and is nowhere near me anymore. He says I need to get it to someone local to repair at my cost.


    I am in South Africa, Johannesburg specifically. I also got a guy that works for Mercedes that came with the Xentry unit which is what they use at the dealers and did all sorts of tests including the DPF regen and vacuum tests and boost leak test. Did not find anything except air mass sensor ground to earth if i am remembering correctly.


    Really I am just tired of being messed around and lied to so I want to check as much as I can myself. I have worked on plenty of my own cars in the past so hopefully, I can DIY or diagnose this. apparently, he fixed the following, DPF regen and clean, EGR strip and clean, and then (Front Control SAM unit repairs). Now I opened in front where the SAM unit is and it does not look like it was ever opened.

    Any advice / assistance would be very helpful.
     

Share This Page