Glow plug, upstream lambda and DPS

Discussion in 'Electronics' started by Dord1954, Jun 24, 2017.

  1. Dord1954

    Dord1954 Active Member

    Messages:
    61
    Joined:
    Jul 8, 2015
    Location:
    Shropshire
    Car:
    CLS 320 CDI
    Hi my engine light came on a couple of days ago (CLS320CDI 2006) after plugging into a friends very expensive program it shows problerms with differential pressure sensor, number 6 cylinder glow plug and upstream lambda sensor. I plan to change these items myself but my questions are:-
    1. do I buy MB parts or aftermarket from a local motor factors
    2. how are the cylenders numbered to find number 6
    3. I am assuming there are 2 upstream lambda sensors (one on each side) is there a way I can tell which one is defective

    thanks in advance for any help
     
  2. David404

    David404 Hardcore MB Enthusiast

    Messages:
    631
    Joined:
    Sep 7, 2015
    Location:
    West Midlands
    Car:
    W211 E320 Sport
    Your pals diagnostic tool may or may not be telling the truth, were it me I'd find a local Indie with a STAR machine and ask them to run a check to get a definitive result.
     
  3. OP
    OP
    Dord1954

    Dord1954 Active Member

    Messages:
    61
    Joined:
    Jul 8, 2015
    Location:
    Shropshire
    Car:
    CLS 320 CDI
    ok I have had the diagnostics on a star at indie workshop and they confirmed DPF pressure sensor. now I see the sensor itself is a cheap part to replace but would welcome any input on how easy/difficult it is to do, thanks
     
  4. OP
    OP
    Dord1954

    Dord1954 Active Member

    Messages:
    61
    Joined:
    Jul 8, 2015
    Location:
    Shropshire
    Car:
    CLS 320 CDI
    changed the sensor about a month ago and touch wood all seems ok so far
     
  5. Dave Richardson

    Dave Richardson Hardcore MB Enthusiast

    Messages:
    764
    Joined:
    Oct 14, 2007
    Location:
    Plymstock Plymouth
    Car:
    C Class 220 Evo CDI
    The glow plugs are a different matter & prone to snapping off in the head, I'd let the indie take it on

    Dave
     
  6. zipdip

    zipdip Hardcore MB Enthusiast

    Messages:
    1,695
    Joined:
    Mar 5, 2015
    Location:
    Essex
    Car:
    s320
    number 6 is one the right of the engine looking at it from the front it is the one nearest the bulkhead,they number 1,2,3 left side from radiator 4,5,6 on the right side from the radiator.
     
  7. OP
    OP
    Dord1954

    Dord1954 Active Member

    Messages:
    61
    Joined:
    Jul 8, 2015
    Location:
    Shropshire
    Car:
    CLS 320 CDI
    Well I had the DPF sensor changed in August and all has been well so far, I have ensured to give the car a good run on motorway at full temperature in an effort to burn off any crud from the filter at regular intervals and now hope it will keep out of the dreaded limp mode
     
  8. Markssl

    Markssl Hardcore MB Enthusiast

    Messages:
    493
    Joined:
    Jul 23, 2014
    I changed quite a few parts on my E320CDi 2008 model. I bought everything on eBay. All worked fine and saved me a fortune.
    Buying OEM depends on how much money you want to spend!!


    Sent from my iPhone using Tapatalk
     
    Dord1954 likes this.

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