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W211 Om642 Glow Plugs Question

Discussion in 'Engine' started by expandyman, Dec 24, 2016.

  1. expandyman

    expandyman New Member

    Messages:
    19
    Joined:
    May 13, 2009
    Location:
    surrey
    Car:
    e280 cdi 2005
    Had my glow plugs replaced this week for the 1st time in 10 years and 87k. Curious as to why the two remaining good ones (Resistance <1 Ohm) are still look bright and almost as new, where as the dead ones are quite heavily corroded. Is this normal or indicative of some other fault lurking ?[​IMG]
     
  2. wu56Shoozz

    wu56Shoozz Hardcore MB Enthusiast

    Messages:
    590
    Joined:
    Jun 17, 2016
    Location:
    You'll need a passport to get over the Wall..
    Car:
    MB Vito 111CDi / W203 C Class Saloon 320CDi Avantgarde
    It would suggest that the later two have been replaced recently hence still clean.. the good news is that you got all six out without problem as I'm told that they can be quite a Bar Steward to do and can break in the head... I don't see there being a problem to worry about just as long as it starts properly now in the cold.. I did mine too but was advised to change the relay also as its that that causes our problem......
     
  3. Jonesy161

    Jonesy161 Hardcore MB Enthusiast

    Messages:
    164
    Joined:
    Apr 6, 2015
    Car:
    C class 220 bluefficiency
    Is it not to do with the cleaner burn of the good plugs, hence the coke build up of the failing ones?
     

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