Not starting for 10 minutes when hot

Discussion in 'Engine' started by Nando87, Apr 14, 2014.

  1. Nando87

    Nando87 Member

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    I have a w209 clk 320 cdi. Ramdonly, it fails starting (it just does not crank, only makes a quick start motor noise), only when hot, and this lasts exactly for 10 minutes. After that, it starts without problems at all. My local dealer and me are completly lost... Anyone has experience with this? Apart from this, everything is ok
     
  2. whitenemesis

    whitenemesis MB Club Veteran

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    Sounds like CPS has failed. Does your dealer not have STAR Diagnosis?
     
  3. Simzy

    Simzy Banned

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    Camshaft sensor or the crank angle sensor. Just had the fault myself and the camshaft sensor was at fault. Starts fine now
     
  4. panason1c

    panason1c Hardcore MB Enthusiast

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    Definitely not a crank or cam sensor fault, Crank or cam sensor faults wouldn't stop the motor from cranking,

    Sounds like a possible 'dead' spot on the starter motor commutator windings. (replace starter motor)
     
  5. miro

    miro Hardcore MB Enthusiast

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    What about a bad engine harness. Hot spot in the cable which is causing the ecu some issues.
     
  6. OP
    OP
    Nando87

    Nando87 Member

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    Thanks for your replies. I forgot to say that all these problems started after I replaced the battery using a non official varta silver (I don't know if this could have something to do). In addition, the instrument cluster's lightning with the speakers and everything else turned off is unestable when the engine is not running. What do you think?
     
  7. theogeor

    theogeor Hardcore MB Enthusiast

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    Interesting ifno. Recheck the battery connectors. Disconnect them and give them a good clean so as to make sure you have a good conduct Theo

    ps: I assume the size of the battery is fine ?
     
  8. mario andretti

    mario andretti Hardcore MB Enthusiast

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    Check the battery connections
     
  9. Sp!ke

    Sp!ke Administrator Staff Member

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    I would be looking at battery terminals first, especially the earth strap.

    Then I would consider the starter motor itself or its relay.

    How many miles has this car done?
     
  10. grober

    grober MB Club Veteran

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  11. OP
    OP
    Nando87

    Nando87 Member

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    70k miles
     
  12. OP
    OP
    Nando87

    Nando87 Member

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    The SD shows no problems at all now after we replaced the EIS (I think this is its name) which was fried (SD info) two weeks after I replaced the battery... 1800€ repair, and the car has the same problem as before, nothing has changed.
     
    Last edited: Apr 19, 2014
  13. miro

    miro Hardcore MB Enthusiast

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    Must have had the key in the ignition when the power was connected. Thats known to cause all kinds of horrible problems. The worst one I ever saw was
    - both fuse boxes
    - cluster
    - igntion barrel
    - ABS module

    Just from changing a battery.
     
  14. OP
    OP
    Nando87

    Nando87 Member

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    I'm quite sure the key was out, I know the problems it can cause... but I'm starting to doubt now after all these problems
     

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