W203 (C220 CDi) hesitates on motorway between 2-2.5k rpm

Discussion in 'Engine' started by Spritey, Sep 19, 2011.

  1. Spritey

    Spritey New Member

    Messages:
    2
    Joined:
    Jun 15, 2008
    Location:
    Birmingham
    Car:
    C220 CDI AVANTGARDE 2005
    Hello All

    Over the last four months my W203 has become more erratic on A roads/motorways. If you set the cruise at anything between 2-2.5k rpm it will hesitate (drop about 200rm) every so often, then carry on as if nothing has happened ! It's getting worse even my wife asked me 'what's wrong with the car' over the weekend.
    It never show anything on the dashboard or brings up an error message. Any ideas folks? Would Star show anything if the car has never let me know it has a problem ??
    It was serviced a couple of weeks ago and has done just over 80k miles.

    Thanks for any input

    Regards

    Trevor
     
  2. Doctor Z

    Doctor Z New Member

    Messages:
    8
    Joined:
    Sep 22, 2011
    Car:
    C220 CDI Estate
    Hi Trevor

    I have exactly the same problem (see my post from earlier today), same engine, similar mileage, recent service (but not by a Merc specialist). No solution as yet, but its nice to know I'm not alone. I'll let you know if I get anywhere - any luck with tracing your problem?

    Dr Z
     
  3. sspeed

    sspeed MB Enthusiast

    Messages:
    1,019
    Joined:
    Apr 19, 2009
    Location:
    Near Blackpool..... But not TOO near !!
    Car:
    2006 CLK320 CDi
    Hi,
    I have heard of similar symptoms not too long ago and in that particular case it was a stuck EGR valve..
    This may be worht a look in your case..
    The OP that I am talking about mentioned it affecting his cruise control and so this is what lit up in my head when you asked your question..
     

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