Mercedes ML270cdi starting problem

Discussion in 'Engine' started by uk174, Jul 28, 2011.

  1. uk174

    uk174 Active Member

    Messages:
    88
    Joined:
    Oct 12, 2008
    Location:
    West midlands
    Car:
    ,190cosworth,420 sl,
    My mercedes ML 270 cdi 2003 seems to haave developed a starting problem in that when i go to start it it does not fire straight away.Have to keep turning it to the point of battery almost going flat before it fires.Have noticed this only after car has been running and engine is warmie/if been out to local supermarket ,park up then have to start again whilst engine still warm.
    Local indy seem to suggest poss injector problem or air getting into fuel pipes?
    Any thoughts? Once started ML runs fine ,not sluggish,no smoke. What would be the tell tale signs of injector problems ?
     
  2. OP
    OP
    uk174

    uk174 Active Member

    Messages:
    88
    Joined:
    Oct 12, 2008
    Location:
    West midlands
    Car:
    ,190cosworth,420 sl,
    From just reading the forum am i correct in assuming that it is most likely to be an injector prob and if so can it be cured with just changing the seals or does the leaking seal actually damage the injector so that it needs to be changed .Also what kind of cost am i looking at ?
     
  3. surfer73..

    surfer73.. Member

    Messages:
    56
    Joined:
    Jul 8, 2011
    Location:
    birmingham
    Car:
    2006 ml63 AMG
    hi
    have a look at the plugs that go into your ecu
    i am having a problem with oil travelling up the loom and going into the ecu
    causing the car to take a while to start than if the oil is not removed the car will not start till its cold daft i know but i found this just by sheer chance i was looking for a cause to the starting problem and unplugged the ecu and oil was all in the connections usually the first squareish grey one and you have to check all fuses and relays as the oil drips off and onto the fuse box as well
     
  4. r.v.s.mechanics

    r.v.s.mechanics New Member

    Messages:
    9
    Joined:
    Jul 27, 2011
    Car:
    2001 silver vito 108cdi intercooled and with reversing sensors
    when did you last have it seviced it could be as simple as a fuel filter if you want to pm me i could come take a look at it
     
  5. jaymanek

    jaymanek Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    16,412
    Joined:
    Nov 29, 2002
    Location:
    Nuneaton Warwickshire
    Car:
    Lots of Mercedes!
    Get the codes read, could be crank sensor, could be injectors, could be high pressure pump, could be air in the fuel lines.

    Needs to go on a star machine to test.
     

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