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Thread: CR 280 bi turbo (mosselman )

  1. #1

    CR 280 bi turbo (mosselman )

    I have a problem with my 280 mosselman built merc .I have no ignition on number 2 and number 4 coil .Can anyone give me some good advice ?(please)My car is a 1994 CR 280 sport with a compleet mosselman kit on her .Bi turbo ,special intake ,mosselman stainless steel exhaust ,racing front disk brakes , if some one would like a picture i would be happy to send it .pat from belgium
    frenchie

  2. #2
    I would like to post a pic of my merc !But i cant seem to be able to load attachments .It is in the forum rules .Can some one tell me how to change this?
    frenchie

  3. #3
    Senior Member
    Join Date
    Dec 2002
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    249
    To be able to attach pictures, you need to host your pictures on another site/server. Then, you can use the IMG tag to "link" to the pictures. You cannot attach pictures from your hard drive.

    For example, I use Sony Imagestation to host my picture. So in order for me to attach a picture, I type:

    <IMG>http://www.imagestation.com/picture/...b/fdfedd13.jpg</IMG>

    ***Substitute the <> with []*** (I had to use them so the script would show up)

    Or you can use the IMG tag when you are typing a reply. To use the tag, click the "IMG" button in the VB code section and an "Explorer User Prompt" will show up. Just copy and paste your URL where the picture is and click OK. The IMG tags will automatically fill in appropriately.

    If you do it correctly, you will get this. Volia!!:




    Dave

  4. #4
    OG Moderator kameraguy's Avatar
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    Dec 2002
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    SF Bay Area
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    2,283
    Hi Frenchy,

    I had similar issues in the past and in my case it was due to loose spark plugs. But it was also possible to have been attributed to faulty plugs, worn spark-plug harnesses, or even a worn wiring harness.

    Have you already checked these things?

    Do you have OBD trouble codes on a 94 btw?

  5. #5
    Thank you for your info.I did check the plug cables and put new plugs twice now but!I did get the feeling that it could be my wiring harness because when i was displacing the harness just a litle bit in this one place ,the idle speed changed .This was of course a couple of days back when it was still running on at least 5 cylinders. Now it barely runs at all .No spark on 5 and 3.I dont know if i am getting spark under the coils on 2 and 4 but i suppose so because i dont think it would start on 2 cylinders .And no i did not see or do not know if i have those trouble codes .All i know is that all the lights on the dash swich off ounce the motor runs .Would you know if the ignition sensor would be dirty or coverd with oil ,could it be missing a spark or two ?Now i say this because the problems occured after cleaning the motor !Thanks again for your time .Pat from Belgium.
    frenchie

  6. #6
    OG Moderator kameraguy's Avatar
    Join Date
    Dec 2002
    Location
    SF Bay Area
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    Hi Pat,

    I hope one of our resident tech wizzes can chime in. All I know is when I had the misfiring issues, my mechanic said he has found many 202 wiring harnesses to blame. It appeared to be common enough to be one of the first things to suspect. However it's like one of the more expensive repairs, so hopefully it's not that. But if you said you had issues when moving the harness around....

    Obviously it would be good to have your mechanic have a peak...hopefully for free

  7. #7
    I was moving the rubber part of the wiring harness around which is under the ignition cover and gess what !All off a sudden it ran fine again .(For 5 minutes )I was not able to reproduce the same again but it is the first time it ran good again since the problem started .Would anyone know how much this wiring harness can cost me ?And maybe were i can pick one up a litle cheaper then the Stealership!Thanks again for all the replies.Pat from belgium
    frenchie

  8. #8
    Originally posted by frenchie
    I was moving the rubber part of the wiring harness around which is under the ignition cover and gess what !All off a sudden it ran fine again .(For 5 minutes )I was not able to reproduce the same again but it is the first time it ran good again since the problem started .Would anyone know how much this wiring harness can cost me ?And maybe were i can pick one up a litle cheaper then the Stealership!Thanks again for all the replies.Pat from belgium
    Try this one but not sure if they would ship to Belgium or try Mercedesshop.com.
    http://www.bestforeignparts.com/
    E55 2000
    M-3 2014

  9. #9
    Thanks for the reply but they dont seem to sell wiring harness kits ?Do you know anyone else ?I seem to recall a person on the repairs forum talking about changing his wiring harness .I did not seem to see a price or a address !
    frenchie

  10. #10
    You can send them an email and I'm sure they'll help you get what you need. Their customer service is way beyond excellent.
    E55 2000
    M-3 2014

  11. #11
    Well ,what the hell !I thought i might try to install new suppresors to see if maybe it could still be a coil problem .When i read this thread on this repairs forum and understood that they are responsable for giving resistance!And that the ohm load can change and that can be interprited by the car as a miss-fire ,i said !i will first try this before i go to the stealer ship .Well like normaly ,no luck !It is still the same .So in 2 days i have a appointment at the stealership to pick up the codes .I will let everyone know whats up .Thanks for the input and take care!
    frenchie

  12. #12
    CKlasse
    Guest
    Originally posted by frenchie
    I was moving the rubber part of the wiring harness around which is under the ignition cover and gess what !All off a sudden it ran fine again .
    Frenchie,

    Perhaps your ignition wires short. You shouldn't X two ignition wires at any time. I notice on my w202, cyl # 3&4 cross on each other also. To eliminate this potential prob. I put a rubber piece in between.

    One way to notice whether there is a jump or short between two wires is by listening closely to the wires while the engine is running. Small popping noises usually occur.

    I suspect that you might have 'cut' the rubber/silicone sleeves during removal and reinstalling process - Hence exposure or ground one of the wire to the engine block.

    If this is the case, replacing your ignition wires will solve it.

    I hope this help

  13. #13
    OK !now i know what it is .After paying 130 dollars (euros ) to the stealership , i found out for shure that my problem is in the wiring harness .Inside the rubber part of the wiring .I have two melted wires inside .Now ,the thing is a new one cost here 750 dollars .Can anyone help me locate a second hand wiring harness or maybe a place that has normal prices !
    frenchie

  14. #14
    0118 999 881 999 119 7253

  15. #15
    CKlasse
    Guest
    This is just plain sad. Does anyone know if MB is using the same kind of wiring harness in their newer line up?

  16. #16
    Hey !thanks for all that reading i was able to do .By the way , i pulled that wiring harness out and dissected it .I could not believe what i was looking at ! Most of the wires close to the engine were in such bad condition it looked like they were 200 years old !Anyway ,it took me about 2 hours and did not find it dificult.I must say ,it does take me a litle longer since i only have one good hand .Had a bad motorcycle accident 10 years ago .Now the thing is to be able to find a good second hand one or a cheaper new one .I will get a response tomorrow from a local junk yard (you never know )I also thought about fixing it my self but believe me !If you think it is only one cable that is shorting out ,take a good look again !Thanks for the replies .
    frenchie

  17. #17
    Glad you were able to find the problem...now...about those pics..esp of the turbos..
    2006 xB - bubble tea mobile
    1984 AE86 SR5 - project levin
    1986 AE86 GTS - project trueno

  18. #18
    Just go to this url and all the pics are on this site http://community.webshots.com/user/patfanny:
    frenchie

  19. #19
    After calling around basically all day (again )I have been able to find one place that has a compleet wiring harness for sale !He is asking 160 dollars for it so i will go and take a good look tomorrow morning .Normally if all is ok ,i should have her running by sundown .But it does go to show you ,even here in europe we have problems finding parts sometimes !And even more when the are (bio -degradable )Now who in hell got that Fk good Idea!I will let everyone know how it went .(if anyone GAF of corse )pat from belgium .
    frenchie

  20. #20
    Does anyone have there old wire harness? If do please email me as I would like to talk to you about this.
    0118 999 881 999 119 7253

  21. #21
    I still got mine but most ends been cut.
    E55 2000
    M-3 2014

  22. #22
    Hey ! what do you know .I was able to find a wiring harness but!I still have to wait 5 more days.From what i understand ,only a CR 280 wiring harness fits a (280 ).So ,when i have it and it is put in its place !I will let everyone know.,pat from belgium
    frenchie

  23. #23
    Originally posted by nokia8860
    Does anyone have there old wire harness? If do please email me as I would like to talk to you about this.
    I got another set from my E320.
    E55 2000
    M-3 2014

  24. #24
    Well i shure have learned a lot about wirring harnesses in the last 2 weeks ! I have gone to junk yards and looked at about 20 to 25 cables that were compatible for my 280 .By my suprise ,they all basically had the same problem as mine .Now thinking hey !This is a mercedes ,I will email a few big Merc offices and see what they say on the subject .I meen you never know if they might say hey ,we know we made the worst cables in the world in that time and on those models so we will make a (big effort ) and give you a redused price ?????Well let me tell you that after two weeks and no response ,i decided to get a new one .I think thats what they figured to !But let me say ,dont go and dream thinking you can find one anywere in second hand for 150 to 300 hundred euros (almost same as dollars )because they are also in advanced decomposing stage !Anyway ,good luck if you do .If anyone is interested in looking at a few pics of the car ,just go to this URL.I will put more pics on when the cables are back in this weekend .Thanks ,Pat from Belgium http://community.webshots.com/user/patfanny:)
    frenchie

  25. #25
    frenchie i thought you have fallen off the face of the earth!!! i still need that email from you
    0118 999 881 999 119 7253

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