Hesitant 220

Discussion in 'Engine' started by Philip0603, Jun 29, 2011.

  1. Philip0603

    Philip0603 New Member

    Messages:
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    Joined:
    Dec 13, 2010
    Location:
    Redruth, Cornwall
    Car:
    Mostly Mercedes
    Hi, can anyone help? Have a 1993 E220 Auto estate, M111 engine. Only 156,000 miles.

    Sometimes, not all the time, when I pull away the car will hesitate then proceed as normal. This happens only on light throttle, the engine just seems to die, whilst the electronics try their best to keep things running. This can result in surging especially in reverse. Also if I brake heavily the engine invariably dies. This can be a the least embarrasing, at the worst terrifying when the car dies halfway accross a junction.

    Have given everything a cursory 'going over', and can not see anything untoward.

    Any advice greatfully recieved.
     
  2. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

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    Location:
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    Car:
    C43 AMG with a 55 engine and supercharger, E55 AMG, S500, etc
    Is it a HFM 111?
     
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    Philip0603

    Philip0603 New Member

    Messages:
    10
    Joined:
    Dec 13, 2010
    Location:
    Redruth, Cornwall
    Car:
    Mostly Mercedes

    Not sure what a HFM engine is :confused: But think that mine is a M111.960 (according to Wikipedia)

    It's in a 1993 E220 estate. It is part of the family of 4 Cylinder engines that MB used for all sorts of cars and comes in 1800 to 2300 CC, with or without a supercharger.

    Any ideas??
     
  4. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    18,745
    Joined:
    Feb 8, 2007
    Location:
    Horndean, Portsmouth, Hampshire, Southsea
    Car:
    C43 AMG with a 55 engine and supercharger, E55 AMG, S500, etc
    If it is a HFM it will have an air mass sensor. If it has one this could be what is at fault.
     
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    Philip0603

    Philip0603 New Member

    Messages:
    10
    Joined:
    Dec 13, 2010
    Location:
    Redruth, Cornwall
    Car:
    Mostly Mercedes
    Yes it has an air mass sensor, if i am correct it is located in the intake pipework down stream from the airfilter. Any idea how this can be checked?

    Thanks, Philip.
     
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