Techy question -does anyone know what this means?

Discussion in 'Engine' started by Trotter, Aug 24, 2008.

  1. Trotter

    Trotter New Member

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    Hi, I'm new to this forum so apologies if i'm in the wrong section.I'm a new owner of a 2003 C230 Komressor.I'd only had the car a couple of days when i had the car on tickover it started to misfire slightly and the check engine light came on.If i re-start the car it drives superbly,but if i let it idle for 1 minute it starts to misfire slightly.
    I had the car put on a mates diagnostic machine, and it came up with a misfire on cylinder 2 - with the message SENSOR ROTOR ADAPTATION. Does anyone on here know what this means, and what i may have to do to rectify the fault?
     
  2. Dieselman

    Dieselman Banned

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    I think you can ignore the message as it doesn't sound right, but he misfire on cylinder 2 is accurate. Check the HT lead connections and coil.
     
  3. OP
    OP
    Trotter

    Trotter New Member

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    Thanks for the reply, but that's excactly what the message says, does anyone have any idea as to what it means?
     
  4. alibally

    alibally Hardcore MB Enthusiast

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    It is to do with the crankshaft sensor adaption. Don't worry about it too much. Get the misfire sorted first. What engine is in your car? Is it a M111 or a M271?
     
  5. OP
    OP
    Trotter

    Trotter New Member

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    Excuse my ignorance, but i really don't know - how do i find out?
     
  6. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

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    What colour id the top of the engine?
     
  7. OP
    OP
    Trotter

    Trotter New Member

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    Black plastic cover
     
  8. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

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    271 engine.

    check for water ingress down the plug hole
     
  9. OP
    OP
    Trotter

    Trotter New Member

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    At least i have my engine identified,cheers. What would water ingress down the plug hole indicate?
     
  10. alibally

    alibally Hardcore MB Enthusiast

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    There is a rubber breather pipe that splits under the air filter box that may, if its bad enough give a misfire on no. 1 or 2 cylinder. You have to take the air filter box off to get to it to check and that s a bit of a t**t to do as there is a metal clip at the back that is quite inaccessible. If you are not sure then I would suggest running it into your usual mechanic as it comes off with the engine ecu etc as well.
    See item 122 on parts catalogue.
    http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=203046&M=271%2E946&GA=722%2E695&GM=716%2E605716%2E628&CT=M&cat=63A&SID=01&SGR=015&SGN=03
     
    Last edited: Aug 26, 2008

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