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Thread: What is the job of the ignition condenser 0011568801

  1. #1

    What is the job of the ignition condenser 0011568801

    I have a 400E that runs awful when it gets hot and I'm running out of the obvious things to change. Could the ignition condenser 0011568801 be the culprit?

  2. #2
    .036 Hoonigan™
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    Re: What is the job of the ignition condenser 0011568801

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    Dave M.
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    postwhore posterchild Klink's Avatar
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    Re: What is the job of the ignition condenser 0011568801

    It is not for the ignition system. It is connected to the general electrical system. I have never seen one defective, so I can't say how the vehicle behaves when one is defective...
    Putting the fun in dysfunction...

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  5. #4

    Re: What is the job of the ignition condenser 0011568801

    Thank you Dave.
    I didn't see how it could affect this ignition on the M119.
    I saw "ignition condenser" on a part number search and I think "points".....and of course there aren't any on these cars.
    Maybe it should be called a "suppressor".

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  7. #5
    .036 Hoonigan™
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    Re: What is the job of the ignition condenser 0011568801

    "Capacitor" is a more accurate term. "Condenser" is an older term for basically the same component. Both are rated in Farads (usually microfarads; this part is rated 4700uF).

    "Suppressor" generally means a resistor of some sort, which is totally different, and rated in ohms.

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    Dave M.
    1997 E420 (Bugeyes)
    1994 E420 (Blondie)
    1994 E500 (Q-ship)
    1992 500E (Mach 5)
    1987 300D (Sportline Stage 2)
    Click here for my website
    Click here for my YouTube channel

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  9. #6

    Re: What is the job of the ignition condenser 0011568801

    Dave, maybe you can shed some light on this for me.
    To-day it stopped again, when hot, and wouldn't start.
    I have 50 PSI of fuel pressure when cranking and a good strong spark.
    Pulled a couple of plugs and they are dry so the injectors aren't opening.
    Could the be a faulty immobilizer that functions when it gets hot or could it be the module that is controlling the injectors?
    That is the LH module, right?
    This is a 92 400E without traction control.

  10. #7
    .036 Hoonigan™
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    Re: What is the job of the ignition condenser 0011568801

    Quote Originally Posted by Gmach View Post
    Dave, maybe you can shed some light on this for me.
    To-day it stopped again, when hot, and wouldn't start.
    I have 50 PSI of fuel pressure when cranking and a good strong spark.
    Pulled a couple of plugs and they are dry so the injectors aren't opening.
    Could the be a faulty immobilizer that functions when it gets hot or could it be the module that is controlling the injectors?
    That is the LH module, right?
    This is a 92 400E without traction control.
    If you have 50psi at the rail, cranks fine, and confirmed spark... I agree, it sounds like the injectors are not opening.

    Assuming this is the case, I'd suspect the LH module or something which is telling the LH module to not fire the injectors.

    Have you swapped in a different module for grins? Also, in this situation, squirt a small amount (1-2 seconds) of starting fluid down the intake and see if the engine fires briefly and then shuts off again - this would confirm 100% that it's a fuel delivery issue.


  11. #8

    Re: What is the job of the ignition condenser 0011568801

    I just ordered a used replacement LH module. The crazy thing is it now will start and run but as it gets hot starts to run as if there is a fuel starvation issue. Just drops couple hundred RPM then picks up, then drops and picks up. Doesn't sound like a miss due to one or two plugs failing. Only when hot. No codes.

  12. #9
    E500E Guru 8899's Avatar
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    Re: What is the job of the ignition condenser 0011568801

    Quote Originally Posted by Gmach View Post
    I just ordered a used replacement LH module. The crazy thing is it now will start and run but as it gets hot starts to run as if there is a fuel starvation issue. Just drops couple hundred RPM then picks up, then drops and picks up. Doesn't sound like a miss due to one or two plugs failing. Only when hot. No codes.
    Sounds to me like the typical "rough-running issue when hot". This symptom is discussed at length in other threads. Here is some reading for you:

    http://www.500eboard.com/forums/show...php?t=4388#top
    http://www.500eboard.com/forums/show...6740#post46740
    http://www.500eboard.com/forums/show...ighlight=crank
    http://www.500eboard.com/forums/showthread.php?t=3168
    http://www.500eboard.com/forums/showthread.php?t=1347
    http://www.500eboard.com/forums/showthread.php?t=146
    http://www.500eboard.com/forums/showthread.php?t=3079
    Greg
    '94 E500
    '03 E320 4Matic Wagon (W210)

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  14. #10

    Re: What is the job of the ignition condenser 0011568801

    I might agree except the plugs are dry so no fuel is getting through, on the "no start" condition! But, I'm still not total convinced it's a LH module failure either. I got one of those coming but I also have a complete set of new replacement Bremi caps and rotors coming as well. This has been an issue for some time. I have replaced the rotors and caps with good used parts with no change. Re-sealed and cleaned the injectors with no luck. Swapping coils made no difference. Even swapped the ignition module with a good used one.

  15. #11
    .036 Hoonigan™
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    Re: What is the job of the ignition condenser 0011568801

    Don't install new caps/rotors without also installing new insulators behind the rotors... they are only ~$40/ea aftermarket Bosch, and have been the cause of many headaches on these engines.

    LH module is a long shot but easy to test with a good spare module, besides it's a good idea to have a spare of each CAN module anyway.


  16. #12
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    Re: What is the job of the ignition condenser 0011568801

    Its a noise suppressor capacitor Dave has shown. To filter/clean power. Honestly, you may not have an issue with it completely removed... Depending the type of capacitor, failure modes. If it is electrolytic, they can burst/pop. Never had a bad polypropylene.


    M

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  18. #13

    Re: What is the job of the ignition condenser 0011568801

    Quote Originally Posted by gsxr View Post
    Don't install new caps/rotors without also installing new insulators behind the rotors... they are only ~$40/ea aftermarket Bosch, and have been the cause of many headaches on these engines.

    LH module is a long shot but easy to test with a good spare module, besides it's a good idea to have a spare of each CAN module anyway.

    I put a new set on last month. Doesn't seem to have made any difference.

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  20. #14

    Re: What is the job of the ignition condenser 0011568801

    Don't want to jinx myself by posting too soon but the new Bremi rotors and caps are installed and the car seems to be acting normal....no misses or hesitation when hot, during idle or under load. That's amazing since the Bosch caps that were on there look perfect and aren't that old. I'm going to heat them up tomorrow and check the continuity on each pin. I sure hope that was the problem.

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