derbyman

Discussion in 'Engine' started by derbyman, Apr 23, 2014.

  1. derbyman

    derbyman New Member

    Messages:
    7
    Joined:
    Jul 27, 2012
    Location:
    Derby
    Car:
    c220 cdi
    Can anyone help Please. C220 CDI 2006 (W203) Coupe.
    For the last 2 months the car goes into limp mode after 8-12 miles.
    Starts 1st time and run's and accelerates fine after a rest.
    Faults showing on STAR diag. 2632-8 Charge pressure to High
    2510-1 Y100 Position signals Fault.
    Changed complete fuel rail including regulator and sensor.
    Changed Fuel,Oil and Air Filters.
    Replaced MAF.
    Replaced Turbo Actuator and circuit board.
    No Particulate Filter on this model. (possible Cat fault???)
    Could someone please show me where the EGR valve is situated.
    Garage assure me there are NO Split Pipes.
    PLEASE HELP. Running out of ideas,money and patience
     
    Last edited: Apr 23, 2014
  2. E270 Owner

    E270 Owner Hardcore MB Enthusiast

    Messages:
    1,672
    Joined:
    Dec 23, 2012
    Location:
    S E London
    Car:
    Anything I get my hands on.
    Clean the MAP sensor also check the connector plug and wiring and hope it clears the problem otherwise its possibly the turbos VNT sticking causing an over boost condition.

    Its possible to remove and strip the turbo then clean and replace, but let someone who's done one before do it as you have to know what to look for regarding wear and settings.
     
    1 person likes this.
  3. Simzy

    Simzy Banned

    Messages:
    360
    Joined:
    Aug 17, 2013
    Location:
    Newport Gwent
    Car:
    C220
    Why did you change the fuel rail ?
     
  4. OP
    OP
    derbyman

    derbyman New Member

    Messages:
    7
    Joined:
    Jul 27, 2012
    Location:
    Derby
    Car:
    c220 cdi
    Hi Simzy, Thanks for reply. Changed Rail because initial fault also showed P2020-001rail pressure to high for closed regulator. This has not returned since change.
     
  5. OP
    OP
    derbyman

    derbyman New Member

    Messages:
    7
    Joined:
    Jul 27, 2012
    Location:
    Derby
    Car:
    c220 cdi
    Thanks for response. Could you say what the MAP sensor is for and where it is positioned on this model.
     
  6. Simzy

    Simzy Banned

    Messages:
    360
    Joined:
    Aug 17, 2013
    Location:
    Newport Gwent
    Car:
    C220
    Oh ok then. I think it could be the cat being blocked as I had this issue. These cars create a nice bit of soot over time and this could be blocking your cat. I had the same issue, fine for a few mins then bam limp home mode.
    Only way to test it is to take it off and drive without it on to see if it is the issue. The other two fault you have in my opinion are not related to the limp mode.
     
    1 person likes this.
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