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Mercedes CLKw208 2.0 Kompressor: Misfire on 1st & 4th Cylinder, Black Smoke, Emergency Mode

szymon2431 6411 9
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  • #1 16260276
    szymon2431
    Level 10  
    Hello
    My problem in mercedeśniczce is that it has a misfire on the 1st and 4th cylinder, when the gas is added more rapidly, it goes into emergency mode
    Did you have a similar problem? I will add that when I start the engine on a cold, it is slightly smoky in black :( please help
    Thank you in advance mercedes clk w208 2.0 kompressor
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  • #2 16261147
    rafal35
    Level 18  
    If it can smoke, it means that there is oil in the combustion chamber and it is possible that a deposit has accumulated on the candles. If this is the cause, you need to inspect the candles and replace them if necessary.
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  • #3 16261273
    Józef18
    Level 32  
    Swap the coils, i.e. 1 and 4, with 2 and 3.
    If there is still misfire on 1 and 4, replace the spark plugs, if it appears on 2 and 3, the coils are dead and need to be replaced.
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  • #4 16262483
    szymon2431
    Level 10  
    The coils are new and I also made 2,000 candles on them and they are dedicated to this model ... I did not give 20 PLN for them, unless they are really defective ... Tomorrow I will buy second candles and check ......
  • #5 16262496
    rafal35
    Level 18  
    szymon2431 wrote:
    The coils are new and I also made 2,000 candles on them and they are dedicated to this model ... I did not give 20 PLN for them, unless they are really defective ... Tomorrow I will buy second candles and check ......


    The candles can also be replaced and see if the same cylinders are ignited :-)
  • #6 16263052
    szymon2431
    Level 10  
    I don't want to play in such a twist, I will buy a new one, only the question of how to insert new candles or help ... Or maybe the ignition module is already sitting down
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  • #7 16263593
    rafal35
    Level 18  
    szymon2431 wrote:
    I don't want to play in such a twist, I will buy a new one, only the question of how to insert new candles or help ... Or maybe the ignition module is already sitting down

    Replacing candles or coils is the cheapest and easiest solution because you don't have to buy anything blindly. You can of course buy new spark plugs for new coils and hope (but no sure) that this will help.
  • #8 16265578
    szymon2431
    Level 10  
    I am also wondering about the liquid temperature sensor, sometimes I noticed that the temperature jumps to me, maybe the wrong doses, and that's why the ignition falls out ..... the reason may be that the timing chain may be slightly stretched ... I noticed that the car has no power and does not burn the mixture feels in the exhaust fumes.
  • #9 16265906
    Dziarski Hank
    Level 34  
    Or maybe instead of replacing and looking blind, start with computer diagnostics, but not with errors, only live-data? This car cannot be repaired with a meter and a set of wrenches.
  • #10 16271093
    szymon2431
    Level 10  
    The temperature sensor went down and it was the fault and the candles had cracked pottery thanks to the hints
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Topic summary

The discussion revolves around a Mercedes CLK W208 2.0 Kompressor experiencing misfires on the 1st and 4th cylinders, accompanied by black smoke and entering emergency mode when accelerating rapidly. Suggestions include inspecting and potentially replacing spark plugs and ignition coils, as well as considering the condition of the temperature sensor and timing chain. A user noted that the temperature sensor was faulty and that cracked spark plugs contributed to the issue. The importance of computer diagnostics for accurate troubleshooting was also emphasized.
Summary generated by the language model.
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