Lumpy tick over petrol smell

Discussion in 'Engine' started by PAULPA66, Sep 29, 2015.

  1. PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    I have a C180 4 door Kompressor 2004. Since my last MOT the engine tick over is a bit lumpy and smells of petrol. This happened after they revved car for emissions test, prior to this it was ok.

    Another ( may be related) i have engine management light on, can anyone recommend a tester i can buy for engine codes and to test this car please
     
  2. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Would this be a good diagnostics tool or is there one that could be used on other cars too?
     
    Last edited: Sep 29, 2015
  3. martyz

    martyz Hardcore MB Enthusiast

    Messages:
    2,390
    Joined:
    May 14, 2011
    Location:
    New Forest
    Car:
    ClK240 209,190E 201.
    Do you get a rattle on start up? and what's your mileage?
     
  4. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Hi, not noticed any rattle, mileage about 70k.
    Definitely only started after the rev they give it for emissions test

    Runs fine at normal running rev.
     
  5. martyz

    martyz Hardcore MB Enthusiast

    Messages:
    2,390
    Joined:
    May 14, 2011
    Location:
    New Forest
    Car:
    ClK240 209,190E 201.
    Have the codes read at a MB specialist with Star diagnostics first.
     
  6. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Timing Chain possibly slipped?
     
  7. martyz

    martyz Hardcore MB Enthusiast

    Messages:
    2,390
    Joined:
    May 14, 2011
    Location:
    New Forest
    Car:
    ClK240 209,190E 201.
    Did not want to worry you,but quite likely,they stretch and the cam gears wear too.
     
  8. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Big bucks?

    Just started it, definately no rattle
     
  9. martyz

    martyz Hardcore MB Enthusiast

    Messages:
    2,390
    Joined:
    May 14, 2011
    Location:
    New Forest
    Car:
    ClK240 209,190E 201.
    To supply and fit chain and gears and associated bits around £1500 at an MB specialist.
    Nothing stopping you DIY if you are an above average home mechanic.I would run it past
    a specialist first,about £40 to plug in to star and pick his brain at the same time.The above
    is worse case scenario,could be coil pack going down,codes read should reveal.Hope you
    get a good outcome.
     
  10. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    martyz Thank you.

    Could i buy a diagnostics as above find the codes myself? or best to get someone out like you say.

    Um runs like this, (sounds better though) https://www.youtube.com/watch?v=1DnQQPyoSqs

    I guess Mass Air Flow Sensor too.

    Diagnostics it is lol
     
    Last edited: Sep 29, 2015
  11. martyz

    martyz Hardcore MB Enthusiast

    Messages:
    2,390
    Joined:
    May 14, 2011
    Location:
    New Forest
    Car:
    ClK240 209,190E 201.
    Star is your best bet,trust me.:thumb:
     
  12. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Yeah, will try find someone local, in meantime i,ll clean the mass airflow sensor even i can do that lol
     
  13. martyz

    martyz Hardcore MB Enthusiast

    Messages:
    2,390
    Joined:
    May 14, 2011
    Location:
    New Forest
    Car:
    ClK240 209,190E 201.
    If you do, use IPA spray from maplins,do not touch it,and sometimes it may
    damage it...bundle of fun aren't I.:D
     
  14. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    just bought some CRC AIR SENSOR CLEAN MASS AIR FLOW METER CLEANER 200ML.
    No i wont touch it, 15 squirts on sensor, and a few on connector. (according to youtube) ;-)
     
  15. martyz

    martyz Hardcore MB Enthusiast

    Messages:
    2,390
    Joined:
    May 14, 2011
    Location:
    New Forest
    Car:
    ClK240 209,190E 201.
    Sounds good.:thumb:
     
  16. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Be nice if engine light goes off, petrol smell goes and car idles as it should.. Can but hope.
    I will update when done let you know.
     
  17. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Bought a cheap diagnostic tool gave me
    P0102 maf
    P0172 maf
    P0301 Random/Multiple Cylinder Misfire Detected cyl1
    P0303 Random/Multiple Cylinder Misfire Detected cyl3
    P0304 Random/Multiple Cylinder Misfire Detected cyl4
    P0362 coil

    Some may be old as had plugs etc changed 6 mths ago

    is it worth resetting then see what comes back as fresh faults?
     
  18. martyz

    martyz Hardcore MB Enthusiast

    Messages:
    2,390
    Joined:
    May 14, 2011
    Location:
    New Forest
    Car:
    ClK240 209,190E 201.
    Yes clear the fault codes, did cleaning the MAF work?
     
  19. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Well, not sure as i have bottled it at the moment reading about that clip down the back, the rest of process looks simple enough but think i need one of these to proceed. I did change all my brake pads though ;-)
     

    Attached Files:

    • d1.jpg
      d1.jpg
      File size:
      7.8 KB
      Views:
      8
    Last edited: Oct 2, 2015
  20. OP
    OP
    PAULPA66

    PAULPA66 New Member

    Messages:
    27
    Joined:
    Sep 29, 2015
    Car:
    c180
    Interesting, reset codes, warning lights off and it is running at higher rev(normal) and not lumpy.( when i say lumpy i mean ticking over about 600rpm and not really smooth)

    Need to give it a run out see if light comes back when warmed up
     
    Last edited: Oct 2, 2015

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.