The year CDI Black death stopped occurring

Discussion in 'Engine' started by farmerpete, Jul 8, 2017.

  1. farmerpete

    farmerpete New Member

    Messages:
    14
    Joined:
    Jun 12, 2013
    Location:
    NSW Australia
    Car:
    1989 w124 300d, 2003 ml270, 1979 w123 300td, w210 E300 Turbodiesel ( 2 of ...yes its a sickness )
    Hi from Australia
    I'm the sad owner of a 2003 ml270 with recurring black death :fail
    Yes my own spannering :fail
    Nice vehicle otherwise.
    What year did the boffins at MB decide to change the design of the injector seating to eliminate this :)fail) problem?
    Cheers Peter
     
    1 person likes this.
  2. bob6600

    bob6600 MB Club Veteran

    Messages:
    5,410
    Joined:
    Jan 3, 2013
    Car:
    AUDI S8 V10, S210 E320 CDI (R.I.P.)
    What are you doing wrong?
     
  3. Mr Filipov

    Mr Filipov Hardcore MB Enthusiast

    Messages:
    330
    Joined:
    Dec 30, 2015
    Car:
    2014 BMW 530d Gran Turismo
    I had signs that it was starting to occur on my 2007 CLS with the 3.0 V6 diesel, however I now have a 2011 E class with the same engine, but a bit too new and slightly lower mileage at 72k to tell if it will ever come up or not.
     
  4. SMS

    SMS Member

    Messages:
    56
    Joined:
    Nov 11, 2016
    Location:
    Reading
    Car:
    Mercedes
    It still happens on all diesels with single bolt fixing. Even later engines.
     
  5. OP
    OP
    farmerpete

    farmerpete New Member

    Messages:
    14
    Joined:
    Jun 12, 2013
    Location:
    NSW Australia
    Car:
    1989 w124 300d, 2003 ml270, 1979 w123 300td, w210 E300 Turbodiesel ( 2 of ...yes its a sickness )
    Not grinding enough surface off .... perhaps will heat treat the copper seals next time
     
  6. andy27168

    andy27168 Hardcore MB Enthusiast

    Messages:
    4,337
    Joined:
    Nov 27, 2004
    Location:
    Southampton
    Car:
    1997 C230K, 1999 C43/55 AMG
    Hi,
    Are you replacing the clamp on the bolt? and torqueing down to the correct setting?
     
  7. Trickythemerc

    Trickythemerc Hardcore MB Enthusiast

    Messages:
    989
    Joined:
    Feb 1, 2015
    Location:
    South Manchester
    Car:
    CLK 220 CDI Sport 2009
    Never had the problem, but I do believe that using Honda copper injector seals is a better bet than using MB. The seats need dressing properly and the stretch bolts must be renewed and correctly fitted and torqued.
     

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